Summary of a study on how hormone concentration during simulated competition is correlated with future Olympic weightlifting performance.
70 junior athletes (46 males; total 231±42.6, 24 females; total 138±28.6) aged 18 years with 4.4 years of experience (Poland).
Experimental during simulated competition, then observation for two years.
- cortisol and testosteron levels before and after a simulated competition
- Olympic weightlifting results from real competitions for the next 2 years
- males improved on average 3.10±0.39 kg per each kg of body mass.
- females improved on average 2.19±0.53 kg per each kg of body mass.
- during the first year, the athletes improved on average 2.89±0.58 kg per each kg of body mass (11.4±7.7% of improvement), and 2.60±0.53 during the second year (10.8±11.6% of improvement).
- individual changes in the first and second year were positively correlated (r=0.71, p<0.001).
- no difference between sexes in cortisol nor testosterone change from before to after the simulated competition
- the individual cortisol response (change from before to after the simulated competition) varied from -58% to 200%.
- the individual testosterone response (change from before to after the simulated competition) varied from -21% to 71%.
- 1% increase in cortisol during the simulated competition predicted 0.04% drop in performance from the group average in the first year, and 0.07% drop in the second year of competing in Olympic weightlifting.
Take home message
Crewther BT, Cook C, Orysiak J, Zmijewski P, Obmiński Z. Individual variation in the cortisol response to a simulated Olympic weightlifting competition is related to changes in future competitive performance. Biology of sport. 2019 Jun;36(2):133.