Maturity and Motor Fitness

EFFECT OF MATURITY ON SPRINT AND JUMP PERFORMANCES IN ADOLESCENT BOYS.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01658423

Acronym

MMF

Enrollment

107

Registered

2012-08-07

Start date

2011-03-31

Completion date

2012-03-31

Last updated

2012-08-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Physical Fitness

Keywords

pubic hair, sprint velocity, vertical jump height, body composition, maximal voluntary torque

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

MALE

Age

156 Months to 167 Months

Healthy volunteers

Yes

Inclusion criteria

* adolescents

Exclusion criteria

* subjects had some diseases and disorders

Design outcomes

Primary

Measure	Time frame	Description
Body composition	1 day	Bioelectrical impedence - percent body fat

Secondary

Measure	Time frame	Description
Muscle strength	1 day	myometer- knee extension strength

Countries

Japan

Outcome results