Fra tid til annen dukker det opp spørsmål om bruk av feks sauna i forhold til styrketrening. Her er et abstract av en rykende fersk artikkel:
Am J Physiol Regul Integr Comp Physiol (March 10, 2005). doi:10.1152/ajpregu.00497.2004 Submitted on July 26, 2004
Accepted on March 8, 2005
Heat treatment reduces oxidative stress and protects muscle mass during immobilization
Joshua T Selsby1 and Stephen L Dodd1*
1 Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
This study examined the role of heating on oxidative stress and muscle mass in immobilized limbs. Rats were divided into three groups (n=9/group): a control group (Con), an immobilized group (Im), and an immobilized and heated group (ImH). Rats were immobilized in the plantarflexed position for eight days. The core temperature of the ImH was elevated to 41-41.5°C on alternating days and maintained for 30 min before cooling. On day 8, both HSP 25 and 72 were markedly elevated in ImH when compared to Im, while Im was not different from control. Most notably, the ImH group had significantly larger solei when compared to the Im group, which was less than Con. The addition of heating to immobilization significantly reduced oxidative damage. In an effort to further identify the cause of this protective effect, antioxidant enzyme activities were assessed. These data indicate that heating provides protection against oxidative stress and preserves muscle mass during disuse atrophy.
Kommentar: vi skal være varsomme med å legge for mye i denne studien. Tidligere forsøk synes å indikere at varmebehandling kan gi utslag i serum veksthormon i mennesker. Det over var et forsøk på rotter, men det reiser det interessante spørsmålet om feks sauna i tillegg til andre gunstige effekter faktisk reduserer oksidativt stress. Litt tid i badstua ser i alle fall ikke ut til å skade, feks etter en treningsøkt.
