Maturity and Motor Fitness

Completed

• Conditions: Physical Fitness

• Registration Number: NCT01658423
• Lead Sponsor: National Institute of Fitness and Sports in Kanoya

Brief Summary

The current study examined the effect of maturity on the sprint and jump performances in a single year age group of 13 year old boys.

Detailed Description

The investigators examined the issue in adolescent boys (n = 107) aged from 13.0 to 13.9 years. The maturity status was assessed using a self-assessment of stage of pubic hair based on the criteria of Tanner. Body composition and maximal voluntary knee extension torque (KET) were determined using a bioelectrical impedance analyzer and a static myometer, respectively. Sprint velocity was measured by a non-motorized treadmill. Jump height was calculated from the following equation; g × (flight time)2 × 8 × 10-1. The flight time during jumping was measured by a matswitch system.

Study Timeline

• Study Start: 2011-03
• Primary Completion: 2011-03
• Study Completion: 2012-03
• Study First Submitted: 2012-07-31
• Status Verified: 2012-08
• Study First Submitted QC: 2012-08-02
• Last Update Submitted: 2012-08-06
• Study First Posted: 2012-08-07
• Last Update Posted: 2012-08-08

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 107

Inclusion Criteria

• adolescents

Exclusion Criteria

• subjects had some diseases and disorders

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Body composition	1 day	Bioelectrical impedence - percent body fat

Secondary Outcome Measures

Name	Time	Method
Muscle strength	1 day	myometer- knee extension strength

Trial Locations

Locations (1)

Chosa junior high school; 🇯🇵 Kokubu, Kagoshima, Japan