This is the classic website, which will be retired eventually. Please visit the modernized instead.
Working… Menu

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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03898518
Recruitment Status : Completed
First Posted : April 2, 2019
Last Update Posted : November 3, 2020
Chonnam National University
University of Nebraska
Information provided by (Responsible Party):
Won-mok son, Pusan National University

Brief Summary:
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.

Condition or disease Intervention/treatment Phase
Prehypertension Blood Pressure Abdominal Obesity Self Efficacy Adiposity Insulin Sensitivity Other: 12-week jump rope exercise program Not Applicable

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 48 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: exercise intervention group, control group
Masking: None (Open Label)
Primary Purpose: Health Services Research
Official 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
Actual Study Start Date : October 3, 2010
Actual Primary Completion Date : February 23, 2011
Actual Study Completion Date : December 6, 2011

Arm Intervention/treatment
No Intervention: Control Group
The control group was in the facility for all jump rope exercise sessions but did not participate in the exercise intervention.
Experimental: Experimental Group
The experimental group performed the jump rope exercise intervention.
Other: 12-week jump rope exercise program
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 Outcome Measures :
  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.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   14 Years to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

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
Layout table for additonal information
Responsible Party: Won-mok son, Principal Investigator, Pusan National University Identifier: NCT03898518    
Other Study ID Numbers: UNOVRLJRSE
First Posted: April 2, 2019    Key Record Dates
Last Update Posted: November 3, 2020
Last Verified: October 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Won-mok son, Pusan National University:
body composition
insulin sensitivity
academic self-efficacy
Additional relevant MeSH terms:
Layout table for MeSH terms
Insulin Resistance
Obesity, Abdominal
Nutrition Disorders
Body Weight
Immune System Diseases
Glucose Metabolism Disorders
Metabolic Diseases
Vascular Diseases
Cardiovascular Diseases