RE: The beneficial effects of Yoga

Ian Ramsey — Wed, 20 Feb 2019 15:53:15 GMT

Thanks - that is a good paper!. Whilst we are on the subject this is another great paper looking at the effect of removing protection from rock climbers (who are the only group crazy enough to do this sort of study!!)

Ian

J Sports Sci. 2017 May;35(10):989-994. doi: 10.1080/02640414.2016.1206667. Epub 2016 Jul 11.

The effect of potential fall distance on hormonal response in rock climbing.

Baláš J1, Giles D2, Chrastinová L3, Kárníková K1, Kodejška J1, Hlaváčková A3, Vomáčko L1, Draper N2.

Author information

Abstract

The aim of this study was to examine the effect of alterations in potential lead fall distance on the hormonal responses of rock climbers. Nine advanced female climbers completed two routes while clipping all (PRO-all) or half (PRO-½) of the fixed points of protection. Venous blood samples were analysed for total catecholamines, noradrenaline (norepinephrine), adrenaline (epinephrine), dopamine, lactate, cortisol and serotonin. Differences between the two conditions pre, immediately post and 15 min post climbing were assessed using a 2 × 3 repeated measures ANOVA. All hormones and blood lactate concentrations increased significantly (P < 0.05) immediately post climb, except for cortisol. Peak cortisol concentrations did not occur until 15 min post ascent. Further, significant interactions between climbing and clipping conditions were found for total catecholamines (890% of basal concentration in PRO-½ vs. 568% in PRO-all), noradrenaline (794% vs. 532%) and dopamine (500% vs. 210%). There were no significant interactions for adrenaline (1920% vs. 1045%), serotonin (150% vs. 127%) or lactate (329% vs. 279%). The study showed a greater catecholamine response with an increase in potential lead fall distance. The most pronounced increases seen in catecholamine concentration were reported for dopamine and noradrenaline.

RE: The beneficial effects of Yoga

Jenny Lithner — Wed, 20 Feb 2019 12:11:03 GMT

Maybe a clue to your answer: https://www.ncbi.nlm.nih.gov/pubmed/28963884