Maturity and Motor Fitness (MMF)
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.
|Study Design:||Observational Model: Cohort
Time Perspective: Cross-Sectional
|Official Title:||EFFECT OF MATURITY ON SPRINT AND JUMP PERFORMANCES IN ADOLESCENT BOYS.|
- Body composition [ Time Frame: 1 day ] [ Designated as safety issue: No ]Bioelectrical impedence - percent body fat
- Muscle strength [ Time Frame: 1 day ] [ Designated as safety issue: No ]myometer- knee extension strength
Biospecimen Retention: None Retained
|Study Start Date:||March 2011|
|Study Completion Date:||March 2012|
|Primary Completion Date:||March 2011 (Final data collection date for primary outcome measure)|
Junior high school student
All subjects participated in measurements of body composition, muscle strength and motor fitness
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.