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Completed

NCT Number: NCT06961734

Fatmax Exercise in Menstrual Phases: Effects on Fat Metabolism & Body Composition in NWO Women

Effects of a Fatmax exercise intervention during different menstrual phases on fat metabolism and body composition in NWO women

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Key information

Conditions

Fat Metabolism

Age range

18 year–30 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

School of Sports Medicine and Rehabilitation, Beijing Sport University

Beijing, China

About this study

This is a randomized clinical trial of single-blind with 3 arms (control group , follicular group and luteal group), in which a pre-treatment-posttest design has been used.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Criteria: Inclusion Criteria:
  • Female, aged between 18 and 30 years old;
  • BMI between 18.5 and 24.9 kg/m2 with a BF% > 30% (normal weight obesity determination criteria);
  • Regular menstrual cycles for at least 3 months;
  • No use of oral contraceptives for at least 6 months before the experiment;
  • Non-smoker and non-alcohol abuser.

Exclusion criteria

  • The presence of CVD;
  • A diagnosis of cancer, pulmonary diseases, or other conditions that prevent participation in exercise;
  • The use of medications affecting body composition or metabolism.

Treatment and study plan

follicular group

Behavioral

Exercised at Fatmax intensity four times per week and plus three additional exercise during the late follicular phase of each cycle.

luteal group

Behavioral

Exercised at Fatmax intensity four times per week and plus three additional exercise during the mid- luteal phase of each cycle.

Control Group

Behavioral

Exercised at Fatmax intensity four times per week.

Primary outcomes

  1. Lipid profile

    Time frame: 8 weeks

    The changes of high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, total cholesterol, and triglyceride before and after intervention.

  2. Body Fat Mass

    Time frame: 8 weeks

    Body fat mass (kg) will be assessed using dual-energy X-ray absorptiometry (DXA) scans. The change of body fat mass before and after intervention.

  3. Percentage of Body Fat

    Time frame: 8 weeks

    The change of percentage of body fat before and after intervention.

Secondary outcomes

  1. Body Mass Index (BMI)

    Time frame: 8 weeks

    Changes in Body mass index before and after Intervention. Body mass index is calculated from the formula, Weight (kg) / Height2 (m2), its unit is kg/m2.

  2. Waist Circumference

    Time frame: 8 weeks

    The change of waist circumference before and after intervention.

  3. Hip Circumference

    Time frame: 8 weeks

    The change of hip circumference before and after intervention.

  4. Apolipoprotein A-I (g/L)

    Time frame: 8 weeks

    The change in apolipoprotein A-I levels before and after the intervention.

  5. Apolipoprotein B (g/L)

    Time frame: 8 weeks

    The change in apolipoprotein B levels before and after the intervention.

  6. Maximal Oxygen uptake (VO2max)

    Time frame: 8 weeks

    Changes in Maximal Oxygen uptake before and after Intervention.

Sponsors and collaborators

Lead sponsor

Beijing Sport University

Other

Registry information

Official study title

Effects of a Fatmax Exercise Intervention During Different Menstrual Cycle Phases on Fat Metabolism and Body Composition in Normal Weight Obese Women

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
May 8, 2025
Registry last updated
May 8, 2025

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

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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