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Is explosive performance influenced by androgen concentrations in young male soccer players?
- Source :
-
British journal of sports medicine [Br J Sports Med] 2009 Mar; Vol. 43 (3), pp. 191-4. Date of Electronic Publication: 2008 Feb 28. - Publication Year :
- 2009
-
Abstract
- Objective: There is growing interest in the implementation and assessment of strength and conditioning programmes among young children. The purpose of this study was to examine the association between given anthropometric characteristics, pubertal development, salivary androgen hormones and explosive leg power in young soccer players.<br />Methods: 51 (age range 10-14 years) soccer players were investigated. The relations between age, pubertal developmental stages, testicular volume, weight, height, body fat, fat free mass, salivary DHEAS concentrations, salivary testosterone concentrations and lower limb explosive power were evaluated.<br />Results: Standing long jump length was positively correlated (p<0.05) with age (11.7 (SD 1.2) years, r = 0.66), pubertal developmental stages (mode and range: 1 (1-4), r = 0.64), testicular volume (8.8 (5.2) ml, r = 0.58), height (1.50 (0.10) m, r = 0.34), weight (43.7 (9.1) kg, r = 0.34), fat free mass (35.4 (7.2) kg, r = 0.67), salivary DHEAS concentrations (4.4 (1.2) ng/ml, r = 0.38) and negatively correlated with body fat (18.6 (7.0) kg; r = -0.49, p<0.05). There was no significant correlation between salivary testosterone concentrations (0.3 (0.1) ng/ml, r = 0.12) and standing long jump.<br />Conclusions: Results of the present investigation demonstrated that age, pubertal developmental stages, testicular volume, weight, height, fat free mass, and salivary DHEAS concentrations were associated with standing long jump performance. In addition, salivary testosterone concentrations were not related to explosive leg power. Results of the present investigation suggest that the teacher/coach should evaluate long jump performance relative to the subject's given biological characteristics, and not simply established standards based on chronological age.
- Subjects :
- Adolescent
Age Factors
Body Weights and Measures
Child
Dehydroepiandrosterone metabolism
Exercise Test
Humans
Leg physiology
Male
Saliva chemistry
Adolescent Development physiology
Athletic Performance physiology
Muscle Strength physiology
Puberty physiology
Soccer physiology
Testosterone metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1473-0480
- Volume :
- 43
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- British journal of sports medicine
- Publication Type :
- Academic Journal
- Accession number :
- 18308871
- Full Text :
- https://doi.org/10.1136/bjsm.2007.040386