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CompletedNCT03898518Updated Nov 3, 2020

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

An interventional study of 12-week jump rope exercise program in Prehypertension, Blood Pressure and Abdominal Obesity, sponsored by Pusan National University. Completed. Open to participants aged 14 Years to 16 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-11-03.

Sponsored by Pusan National University · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
48
Allocation
Randomized
Ages
14 Years to 16 Years
Sex
All
01

Study 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.

02

Conditions studied

  • Prehypertension
  • Blood Pressure
  • Abdominal Obesity
  • Self Efficacy
  • Adiposity
  • Insulin Sensitivity

Keywords

  • adolescence
  • exercise
  • body composition
  • insulin sensitivity
  • obesity
  • academic self-efficacy
03

Who can participate

Ages eligible
14 Years to 16 Years
Sexes eligible
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

Exclusion Criteria:

  • pregnancy
  • chronic disease
  • daily medication use
04

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
48 participants (actual)

Study arms

  • 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

Interventions

  • Other12-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.

05

What researchers measure

Primary outcomes

  1. Body Fat

    Body fat percentage was measured to the nearest 0.1%.

    Time frame: 12 weeks

  2. Blood Pressure

    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.

    Time frame: 12 weeks

  3. Body Mass

    Body mass was measured to nearest 0.1kg.

    Time frame: 12 weeks

  4. Height

    Height was measured to the nearest 1 cm.

    Time frame: 12 weeks

  5. Waist Circumference

    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.

    Time frame: 12 weeks

  6. Lean Body Mass

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

    Time frame: 12 weeks

  7. Glucose

    Blood glucose concentrations were assessed with a glucose reagent kit.

    Time frame: 12 weeks

  8. Insulin

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

    Time frame: 12 weeks

  9. Homeostatic Model Assessment - Insulin Resistance

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

    Time frame: 12 weeks

06

Study locations

No study locations are listed for this record.

07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT03898518
Lead sponsor
Pusan National University
Collaborators
Chonnam National University, University of Nebraska
Responsible party
Won-mok son (Principal Investigator, Pusan National University) — Principal investigator
First posted
Apr 2, 2019
Start date
Oct 3, 2010
Primary completion
Feb 23, 2011
Completion
Dec 6, 2011
Last update
Nov 3, 2020

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
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