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Completed

NCT Number: NCT03878667

Effects of Calcium Supplementation on Women in the Curves for Women Program

The purpose of this study is to examine the effects of dietary calcium supplementation on weight loss, bone density, and markers of health and fitness in women participating in the Curves exercise and diet program.

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Key information

Conditions

Age range

45 year–65 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

About this study

The Curves International fitness and weight loss program has become a very popular means of promoting health and fitness among women. The program involves a 30-minute circuit training program and a weight management program involving periods of moderate caloric restriction (1,200 to 1,600 calories per day) followed by short periods of higher caloric intake (2,600 calories per day). The program is designed to promote a gradual reduction in body fat while increasing strength and muscle mass/tone. Researchers in the Exercise & Sport Nutrition Lab at Texas A&M University have conducted an extensive study on the effectiveness and safety of the Curves fitness and diet program. Results of this initial study have shown that the program promotes weight loss, improves markers of health, and improves fitness. However, we feel that the program may be even more effective with some additional nutritional interventions. Calcium has been shown to slow bone loss and more recently has been found to help promote fat loss. If this is the case, supplementing the diet with calcium may promote greater benefits in women participating in the Curves fitness/diet program. The purpose of this study is to examine the effect of dietary calcium supplementation on weight loss, bone density, and markers of health and fitness in women participating in the Curves exercise and diet program.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participant is female;
  • Participant is post-menopausal;
  • Participant is between the ages of 45 and 65;
  • Participant is sedentary, overweight (BMI > 27) and post-menopausal;

Exclusion criteria

  • Participant has any metabolic disorder including known electrolyte abnormalities, heart disease, arrhythmias, diabetes, or thyroid disease;
  • Participant has a history of hypertension, hepatorenal, musculoskeletal, autoimmune or neurological disease;
  • Participant is taking thyroid, hyperlipidemic, hypoglycemic, anti-hypertensive or androgenic medications;
  • Participant has taken ergogenic levels of nutritional supplements that may affect muscle mass (i.g., creatine, HMB, etc.), anabolic/catabolic hormone levels (i.e., androstenedione, DHEA, etc.) or weight loss (i.e., ephedra, thermogenics, etc.) within three months prior to the start of the study;
  • Participant is consistently taking 500 mg or more of a Calcium supplement per day;
  • Participant is receiving Hormone Replacement Therapy (HRT);
  • Participant is involved in a planned exercise program within 3 - 6 months prior to the start of the study;
  • Participant has lost > 20 lbs. within the last 3 - 6 months;

Treatment and study plan

Curves Calcium

Dietary Supplement

Curves Essential Bio-Available Calcium (providing 800 mg/d of calcium [as calcium citrate malate and calcium citrate], 400 IU/d of Vitamin D, 300 mg/d of magnesium, 4 mg/d of zinc, 2 mg/d of copper, 2 mg/d of manganese, 198 mg/d of potassium, 100 mg/d of trace mineral complex, and 2 mg/d of boron).

Calcium Carbonate

Dietary Supplement

Calcium (providing 950 mg/d as carbonate)

Placebo

Dietary Supplement

Dextrose placebo

Primary outcomes

  1. Body Composition: Body Fat

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body composition (% body fat) obtained via DXA and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  2. Body Composition: Fat Free Mass

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body composition (fat free mass) obtained via DXA and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  3. Body Composition: Bone Mass

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body composition (bone mass) obtained via DXA and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  4. Body Composition: Fat Mass

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body composition (fat mass) obtained via DXA and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  5. Body Composition: Lean Mass

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body composition (lean mass) obtained via DXA and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  6. Body Composition: Body Weight

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body weight (lbs. body weight) obtained via digital scale and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  7. Energy Homeostasis: Resting Energy Expenditure (REE)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in REE obtained via metabolic cart and expressed in absolute (kcals/d) and relative terms (kcals/kg/d) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean changes from baseline with 95% confidence intervals (CI's)

  8. Energy Homeostasis: Respiratory Exchange Ratio (RER)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in RER as an indicator of carbohydrate and fat oxidation analyzed with related resting energy expenditure outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean changes from baseline with 95% confidence intervals (CI's)

Secondary outcomes

  1. Muscular Strength: 1 Repetition Maximum (1RM) Bench Press

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in bench press 1RM obtained from a bench press test and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  2. Muscular Strength: 1 Repetition Maximum (1RM) Leg Press

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in leg press 1RM obtained from a leg press test and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  3. Muscular Endurance: 80% of 1 Repetition Maximum (1RM) Bench Press Endurance Test

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in total repetitions at 80% of 1RM obtained from a bench press test and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  4. Muscular Endurance: 80% of 1 Repetition Maximum (1RM) Leg Press Endurance Test

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in total repetitions at 80% of 1RM obtained from a leg press test and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  5. Body Composition: Body Water

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in body water obtained via Bioelectrical Impedance Analysis (BIA) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  6. Lipid Panel: Cholesterol

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in cholesterol obtained via venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  7. Lipid Panel: HDL Cholesterol

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in HDL cholesterol obtained via venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  8. Lipid Panel: LDL Cholesterol

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in LDL cholesterol obtained via venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  9. Lipid Panel: Triglycerides

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in triglycerides obtained via venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  10. Comprehensive Metabolic Panel - CMP: Glucose

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in glucose obtained via venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  11. Comprehensive Metabolic Panel - CMP: Calcium

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in calcium obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  12. Comprehensive Metabolic Panel - CMP: Albumin

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in albumin obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  13. Comprehensive Metabolic Panel - CMP: Total Protein

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in total protein obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  14. Comprehensive Metabolic Panel - CMP: Sodium

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in sodium obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  15. Comprehensive Metabolic Panel - CMP: Potassium

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in potassium obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  16. Comprehensive Metabolic Panel - CMP: Carbon Dioxide (CO2)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in carbon dioxide (CO2) obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  17. Comprehensive Metabolic Panel - CMP: Chloride

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in chloride obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  18. Comprehensive Metabolic Panel - CMP: Blood Urea Nitrogen (BUN)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in blood urea nitrogen (BUN) obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  19. Comprehensive Metabolic Panel - CMP: Creatinine

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in creatinine obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  20. Comprehensive Metabolic Panel - CMP: Alkaline Phosphatase (ALP)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in alkaline phosphatase (ALP) obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  21. Comprehensive Metabolic Panel - CMP: Amino Transferase (ALT)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in alanine amino transferase (ALT) obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  22. Comprehensive Metabolic Panel - CMP: Amino Transferase (AST)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in alanine amino transferase (ALT) obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  23. Comprehensive Metabolic Panel - CMP: Bilirubin

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in bilirubin obtained via venous blood draws (comprehensive metabolic panel - CMP) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  24. Complete Blood Count - CBC: White Blood Cell (WBC) Count

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in white blood cell count (WBC) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  25. Complete Blood Count - CBC: White Blood Cell Differential

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in white blood cell differential obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  26. Complete Blood Count - CBC: Red Blood Cell (RBC) Count

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in red blood cell count obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  27. Complete Blood Count - CBC: Red Cell Distribution Width (RDW)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in red cell distribution width (RDW) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  28. Complete Blood Count - CBC: Hemoglobin

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in hemoglobin obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  29. Complete Blood Count - CBC: Hematocrit

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in hematocrit obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  30. Complete Blood Count - CBC: Platelet Count

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in platelet count obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  31. Complete Blood Count - CBC: Mean Platelet Volume (MPV)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in mean platelet volume (MPV) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  32. Complete Blood Count - CBC: Neutrophils

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in neutrophils obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  33. Complete Blood Count - CBC: Lymphocytes

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in lymphocytes obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  34. Complete Blood Count - CBC: Basophils

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in basophils obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  35. Complete Blood Count - CBC: Eosinophils

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in eosinophils obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  36. Complete Blood Count - CBC: Monocytes

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in monocytes obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  37. Complete Blood Count - CBC: Mean Corpuscular Volume (MCV)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in mean corpuscular volume (MCV) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  38. Complete Blood Count - CBC: Mean Corpuscular Hemoglobin (MCH)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in mean corpuscular hemoglobin (MCH) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  39. Complete Blood Count - CBC: Mean Corpuscular Hemoglobin Concentration (MCHC)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in mean corpuscular hemoglobin concentration (MCHC) obtained via venous blood draws (complete blood count - CBC) and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  40. Hormones: Insulin

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in serum insulin obtained from venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  41. Hormones: Leptin

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in serum leptin obtained from venous blood draws and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  42. Hemodynamic Variable: Resting Heart Rate (HR)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in resting heart rate (HR) obtained via a blood pressure meter and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  43. Hemodynamic Variable: Resting Systolic Blood Pressure (SBP)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in resting systolic blood pressure (mmHg) analyzed with related resting hemodynamic outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  44. Hemodynamic Variable: Resting Diastolic Blood Pressure (DBP)

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in resting diastolic blood pressure (mmHg) analyzed with related resting hemodynamic outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  45. Anthropometric Measures: Waist Circumference

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in waist circumference obtained via tape measure and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  46. Anthropometric Measures: Hip Circumference

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in hip circumference obtained via tape measure and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  47. Anthropometric Measures: Waist to Hip Ratio

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in the ratio of waist to hip (waist/hip circumference) analyzed with related anthropometric outcomes measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  48. Anthropometric Measures: Body Mass Index

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in body mass index (kg of body mass/height in meters squared) analyzed with related anthropometric outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  49. Cardiac Variable: Resting Electrocardiogram (ECG)

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in resting ECG obtained via electrodes and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  50. Exercise Capacity: Graded Exercise Test (GXT)

    Time frame: Measured prior to supplementation (Pre), after 10 weeks and 14 weeks

    Changes in exercise capacity obtained via a treadmill test and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  51. Subjective Rating of Quality of Life

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Changes in Quality of Life (QOL) obtained via SF36v2 questionnaire and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's). The SF-36 QOL inventory provides scores that assess physical functioning (i.e., ability to perform most vigorous physical activities without limitation to health); role physical (i.e., ability to work and perform daily activities); bodily pain (i.e., limitations due to pain); general health (i.e., assessment of personal health); vitality (i.e., feelings of energy); social functioning (i.e., ability to perform normal social activities); role emotion (i.e., problems with work or other daily activities); and, mental health (state of feelings of peacefulness, happiness, and calm) domains on a 0 (low) to 100 (high scale.

  52. Subjective Rating of Appetite

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of appetite using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  53. Subjective Rating of Hunger

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of hunger using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  54. Subjective Rating of Satisfaction from Food

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of satisfaction from food using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  55. Subjective Rating of Feelings of Fullness

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of feelings of fullness using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  56. Subjective Rating of Amount of Energy

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of amount of energy using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  57. Subjective Rating of Overall Quality of Diet

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    A subjective Likert scale that asked participants to rank the frequency and severity of their symptoms of overall quality of diet using the following scale: 0 (none), 1 - 3 (low), 4 - 6 (moderate), 7 - 9 (high), 10 (severe). Data will be analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  58. Dietary Energy Intake - Total Caloric Intake

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in caloric/energy intake (kcals/day) analyzed with related energy intake outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  59. Dietary Energy Intake - Carbohydrate

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in dietary carbohydrate intake (grams/day and grams/kg/day) analyzed with related energy intake outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  60. Dietary Energy Intake - Fat

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in dietary fat intake (grams/day and grams/kg/day) analyzed with related energy intake outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  61. Dietary Energy Intake - Protein

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in dietary protein intake (grams/day and grams/kg/day) analyzed with related energy intake outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  62. Perceptions of Side Effects - Dizziness

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of dizziness using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  63. Perceptions of Side Effects - Headache

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of headache using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  64. Perceptions of Side Effects - Tachycardia

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of tachycardia using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  65. Perceptions of Side Effects - Palpitations

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of palpitations using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  66. Perceptions of Side Effects - Dyspnea

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of dyspnea using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  67. Perceptions of Side Effects - Nervousness

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of nervousness using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  68. Perceptions of Side Effects - Blurred Vision

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of blurred vision using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

  69. Perceptions of Side Effects - Other Side Effects

    Time frame: Measured prior to supplementation (Pre), after 2 weeks, 10 weeks, 11 weeks and 14 weeks

    Change in perceptions of other side effects using a Likert scale [0 (none), 1 - 4 (light), 5 - 6 (mild), 7 - 9 (severe), or 10 (very severe)] and analyzed with related side effect outcome measures via General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's)

Sponsors and collaborators

Lead sponsor

Texas A&M University

Other

Registry information

Official study title

Effects of Calcium Supplementation on Body Composition, Metabolism and Exercise Capacity in Post-Menopausal Women Participating in the Curves for Women Fitness and Weight Loss Program

Important dates

Study start
2004
Primary completion
2005
Study completion
2005
First posted
Mar 18, 2019
Registry last updated
Mar 19, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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