Journal article
Sex differences in time to task failure during early pubertal development
Muscle & nerve, Vol.49(6), pp.887-894
06/2014
DOI: 10.1002/mus.24076
PMID: 24037802
Abstract
ABSTRACT
Introduction: We compared fatigability and activation of elbow flexor muscles in children at 3 pubertal stages during a sustained submaximal contraction. Methods: In 72 healthy children (39 boys) aged 11 ± 3 years (range, 8–14 years), differences in fatigability (time to task failure) and muscle activation were compared at 3 Tanner stages (T1–T3). Results: Time to task failure and muscle activation were similar between boys and girls at prepubertal Tanner stage 1. Time to task failure was briefer for girls than boys at Tanner stages 2 and 3 and was predicted by the coactivation indices and percent body fat in girls. Muscle torque was the only predictor for the time to task failure in boys. Conclusions: Differences in fatigability and muscle coactivation were evident during the initial pubertal stages (T2 and T3), but not before the onset of puberty (T1). Muscle Nerve 49: 887–894, 2014
Details
- Title: Subtitle
- Sex differences in time to task failure during early pubertal development
- Creators
- Thorsten Rudroff - Colorado State UniversityMatthew R Holmes - Rehabilitation Institute of ChicagoEdward L Melanson - University of Colorado DenverMegan M Kelsey - University of Colorado Denver
- Resource Type
- Journal article
- Publication Details
- Muscle & nerve, Vol.49(6), pp.887-894
- DOI
- 10.1002/mus.24076
- PMID
- 24037802
- ISSN
- 0148-639X
- eISSN
- 1097-4598
- Number of pages
- 8
- Grant note
- National Institute of Health/National Center for Research Resources #5UL1RR025780 (to Colorado Clinical & Translational Sciences Institute) and NIH #5K12HD057022‐04 to MM Kelsey
- Language
- English
- Date published
- 06/2014
- Academic Unit
- Neurology; Health and Human Physiology
- Record Identifier
- 9984002347002771
Metrics
16 Record Views