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

Sponsor

Pusan National University (Other)

Overall Status

Completed

CT.gov ID

NCT03898518

Collaborator

Chonnam National University (Other), University of Nebraska (Other)

Enrollment

Arms

14.1

Actual Duration (Months)

Study Details

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	N/A

Study Design

Study Type:

Interventional

Actual Enrollment :

48 participants

Allocation:

Randomized

Intervention Model:

Parallel Assignment

Intervention Model Description:

exercise intervention group, control groupexercise 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 :

Oct 3, 2010

Actual Primary Completion Date :

Feb 23, 2011

Actual Study Completion Date :

Dec 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.

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

Body Fat [12 weeks]
Body fat percentage was measured to the nearest 0.1%.
Blood Pressure [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.
Body Mass [12 weeks]
Body mass was measured to nearest 0.1kg.
Height [12 weeks]
Height was measured to the nearest 1 cm.
Waist Circumference [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.
Lean Body Mass [12 weeks]
Lean body mass (kg) was determined using a bioelectrical impedance-meter.
Glucose [12 weeks]
Blood glucose concentrations were assessed with a glucose reagent kit.
Insulin [12 weeks]
Serum insulin was evaluated using an enzyme-linked immunosorbent assay (ELISA) kit.
Homeostatic Model Assessment - Insulin Resistance [12 weeks]
Homeostatic model assessment - insulin resistance was calculated from the fasting plasma blood glucose and insulin levels according to previously established models.