NCT03898518

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.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2010

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 3, 2010

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 23, 2011

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 6, 2011

Completed
7.3 years until next milestone

First Submitted

Initial submission to the registry

March 29, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

April 2, 2019

Completed
Last Updated

November 3, 2020

Status Verified

October 1, 2020

Enrollment Period

5 months

First QC Date

March 29, 2019

Last Update Submit

October 30, 2020

Conditions

Keywords

adolescenceexercisebody compositioninsulin sensitivityobesityacademic self-efficacy

Outcome Measures

Primary Outcomes (9)

  • Body Fat

    Body fat percentage was measured to the nearest 0.1%.

    12 weeks

  • 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.

    12 weeks

  • Body Mass

    Body mass was measured to nearest 0.1kg.

    12 weeks

  • Height

    Height was measured to the nearest 1 cm.

    12 weeks

  • 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.

    12 weeks

  • Lean Body Mass

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

    12 weeks

  • Glucose

    Blood glucose concentrations were assessed with a glucose reagent kit.

    12 weeks

  • Insulin

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

    12 weeks

  • 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.

    12 weeks

Study Arms (2)

Control Group

NO INTERVENTION

The control group was in the facility for all jump rope exercise sessions but did not participate in the exercise intervention.

Experimental Group

EXPERIMENTAL

The experimental group performed the jump rope exercise intervention.

Other: 12-week jump rope exercise program

Interventions

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.

Experimental Group

Eligibility Criteria

Age14 Years - 16 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

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

You may not qualify if:

  • pregnancy
  • chronic disease
  • daily medication use

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

PrehypertensionObesity, AbdominalObesityInsulin ResistanceMotor Activity

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: exercise intervention group, control group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

March 29, 2019

First Posted

April 2, 2019

Study Start

October 3, 2010

Primary Completion

February 23, 2011

Study Completion

December 6, 2011

Last Updated

November 3, 2020

Record last verified: 2020-10

Data Sharing

IPD Sharing
Will not share