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

• ClinicalTrials.gov Identifier: NCT03898518
• Recruitment Status: Completed
• First Posted: April 2, 2019
• Last Update Posted: November 3, 2020
• Sponsor: Pusan National University
• Collaborators: Chonnam National University; University of Nebraska
• Information provided by (Responsible Party): Won-mok son, Pusan National University

Study Description

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

Study Design

• 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

Arms and Interventions

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.

Outcome Measures

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.

Eligibility Criteria

• Ages Eligible for Study: 14 Years to 16 Years (Child)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: Yes

Criteria

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

Contacts and Locations

No Contacts or Locations Provided

More Information

• Responsible Party: Won-mok son, Principal Investigator, Pusan National University
• ClinicalTrials.gov Identifier: NCT03898518
• Other Study ID Numbers: UNOVRLJRSE
• First Posted: April 2, 2019
• Last Update Posted: November 3, 2020
• Last Verified: October 2020

Individual Participant Data (IPD) Sharing Statement:

• Plan to Share IPD: No

• 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:

adolescence; exercise; body composition; insulin sensitivity; obesity; academic self-efficacy

Additional relevant MeSH terms:

Prehypertension; Insulin Resistance; Obesity, Abdominal; Hypersensitivity; Obesity; Overweight; Overnutrition; Nutrition Disorders; Body Weight; Immune System Diseases; Hyperinsulinism; Glucose Metabolism Disorders; Metabolic Diseases; Vascular Diseases; Cardiovascular Diseases