The effect of anaerobic exercise on salivary cortisol, testosterone and immunoglobulin (A) in boys aged 15-16 years.
This study investigated the effect of repeated bouts of short-term, high-intensity cycling exercise on the salivary cortisol, testosterone and immunoglobulin (A) concentrations of 15-16 year old boys. Seventeen apparently healthy schoolchildren (aged 15.5 +/- 0.4 years) participated in this study. All participants completed 6 x 8 s sprints, interspersed with 30 s recovery intervals on a cycle ergometer. Using the passive drool method, salivary samples were taken before, and 5 min after, exercise. The group mean for peak power output was 723.1 +/- 180.3 s. There were significant changes (p < or = 0.05) in both SalT and SalC, 5 min after completing 6 x 8 s cycle sprints. No significant differences (p > 0.05) were recorded for SIg(A). The increases in SalT and SalC reported in this study confirm that repeated bouts of short-term, high-intensity exercise produces significant physiological hormonal responses in adolescent boys, but does not affect mucosal immune function.
Thomas
Non Eleri
NE
Centre for Child Research, School of Human Sciences, Swansea University, Singleton Park, Swansea SA2 8PP, UK. n.e.thomas@swansea.ac.uk
Leyshon
Anna
A
Hughes
Michael G
MG
Davies
Bruce
B
Graham
Michael
M
Baker
Julien S
JS
D000293:Adolescent; D000693:Anaerobiosis / Q000502:physiology*; D001642:Bicycling / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D006801:Humans; D006854:Hydrocortisone / Q000032:analysis / Q000378:metabolism*; D007070:Immunoglobulin A / Q000032:analysis / Q000378:metabolism*; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology; D010507:Periodicity; D012463:Saliva / Q000737:chemistry / Q000378:metabolism*; D013739:Testosterone / Q000032:analysis / Q000378:metabolism*
D007070:Immunoglobulin A; D013739:Testosterone; D006854:Hydrocortisone