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Completed

NCT Number: NCT03898518

The Effects of a Jump Rope Exercise Program on Body Composition and Self-efficacy in Obese Adolescent Girls

The purpose of this study was to examine the impact of a 12-week jump rope exercise program on body composition, blood pressure, insulin resistance, and academic self-efficacy in prehypertensive adolescent obese girls. Forty-eight prehypertensive adolescent obese girls participated in this study. The girls were randomly divided into the jump rope exercise intervention group (EX, n=24) and control group (CON, n=24). The EX group performed a jump rope training program at 40-70% of their heart rate reserve (HRR) 5 days/week for 12 weeks (sessions 50 minutes in duration). The CON group did not participate in any structure or unstructured exercise protocol. Blood pressure, body fat percentage, waist circumference, blood glucose and insulin, homeostatic model assessment - insulin resistance, and Academic Self-Efficacy were measured before and after the 12-weeks study.

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Key information

Conditions

Prehypertension Abdominal Obesity Adiposity Behavior Blood Pressure Body Weight Cardiovascular Diseases Glucose Metabolism Disorders Hyperinsulinism Insulin Resistance Insulin Sensitivity Metabolic Diseases Motor Activity Nutrition Disorders Nutritional and Metabolic Diseases Obesity Obesity, Abdominal Overnutrition Overweight Pathological Conditions, Signs and Symptoms Self Efficacy Signs and Symptoms Vascular Diseases

Age range

14 year–16 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • prehypertensive
  • sedentary (no regular exercise training or physical activity within the last year)
  • no weight loss diet during the last six months
  • obese

Exclusion criteria

  • pregnancy
  • chronic disease
  • daily medication use

Treatment and study plan

12-week jump rope exercise program

Other

Each jump rope exercise session of the program was performed for 50 minute, with a 5 minute warm-up and cool-down. Sessions were performed once a day, 5 days a week, for 12 weeks. The program consisted of various main jump rope exercises (1 line 2 jump, jumping feet together, running jumping, open side jump, open back and forth jump, rock paper scissor jump). The warm-up and cool-down consisted of static stretching, walking, and jogging. Intensity of exercise was gradually increased form 40-50% heart rate reserve (HRR) in weeks 1-4 and 60-70% HRR in weeks 9-12. Each training session was supervised by the researchers. Ever subject wore a heart rate monitor during the whole training session in order to maintain the designated training intensity.

Primary outcomes

  1. Body Fat

    Time frame: 12 weeks

    Body fat percentage was measured to the nearest 0.1%.

  2. Blood Pressure

    Time frame: 12 weeks

    Blood pressure was measured in duplicate using an automated sphygmomanometer. The average of the was recorded as the resting blood pressure. Both systolic and diastolic blood pressure were recorded.

  3. Body Mass

    Time frame: 12 weeks

    Body mass was measured to nearest 0.1kg.

  4. Height

    Time frame: 12 weeks

    Height was measured to the nearest 1 cm.

  5. Waist Circumference

    Time frame: 12 weeks

    Waist circumference as measured at midpoint between the lower rib and the iliac crest at the end of a normal expiration using a tap measure.

  6. Lean Body Mass

    Time frame: 12 weeks

    Lean body mass (kg) was determined using a bioelectrical impedance-meter.

  7. Glucose

    Time frame: 12 weeks

    Blood glucose concentrations were assessed with a glucose reagent kit.

  8. Insulin

    Time frame: 12 weeks

    Serum insulin was evaluated using an enzyme-linked immunosorbent assay (ELISA) kit.

  9. Homeostatic Model Assessment - Insulin Resistance

    Time frame: 12 weeks

    Homeostatic model assessment - insulin resistance was calculated from the fasting plasma blood glucose and insulin levels according to previously established models.

Sponsors and collaborators

Lead sponsor

Pusan National University

Other

Collaborators

  • Chonnam National University
  • University of Nebraska

Registry information

Official study title

The Effects of a 12-week Jump Rope Exercise Program on Body Composition, Insulin Sensitivity, and Academic Self-efficacy in Obese Prehypertensive Adolescent Girls

Important dates

Study start
2010
Primary completion
2011
Study completion
2011
First posted
Apr 2, 2019
Registry last updated
Nov 3, 2020

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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