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Dane publikacji

Heterogeneity in the testosterone responses of junior weightlifters across a simulated competition: is it regulating stress levels and physical performance?

Rozdział
2017 angielski
Liczba arkuszy: 0,1
Link do publicznie dostępnego pełnego tekstu
Cechy publikacji
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  • Rozdział w książce, Abstrakt
  • Zrecenzowana naukowo
  • Konferencyjna
Dyscypliny naukowe
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Nauki o kulturze fizycznej
Dane konferencji
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  1. 10th Baltic Sport Science Conference
  2. 2017-04-26 - 2017-04-28
  3. Ryga, Litwa
Abstrakty ( angielski )
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Aim:The reactivity of the anabolic hormone testosterone often varies across exercise, training and competition, which may have some functional relevance. To address this possibility, we compared the stress and performance outputs of junior weightlifters across a simulated competition, once classified as testosterone responders and non-responders. Subjects: 62 junior athletes (40 males, 22 females). Methods:The subjects were monitored across a simulated Olympic weightlifting (OWL) competition. Pre-and post-event measures of blood testosterone, cortisol and state anxiety were taken. OWL performance was recorded and compared to each athlete’s personal best. Two groups of equal size were defined for analysis; high testosterone (mean 27.5±16.8%) and low testosterone (mean -5.9±6.0%) responders. Results:We found no differences (p>0.05) in the cortisol, state anxiety or performance profiles (i.e. pre-competition, post-competition, % changes) of the high and low testosterone groups. On an individual level, the percent changes in cortisol (r = 0.52) and anxiety (r = -0.40) correlated with the performance changes demonstrated by the high testosterone responders (p<0.05), but not by the low responders. Conclusions:A mixed cohort of junior athletes presented heterogeneous testosterone responses (from 71% to -21%) across a simulated OWL competition. Being a high testosterone responder did not alleviate stress or enhance performance versus a low responder, but the former group did show a stronger coupling between these variables. Therefore, in the absence of any overt differences, these testosterone-reactive phenotypes might be discriminated via more complex physiological and performance interactions that could be relevant over time or in different situations.
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