Hot at Any Age
Studies in Finland and Japan report that sitting in a sauna for 15 minutes or placing a heating pad on the area that was to be weight-trained, resulted in an 8% gain in strength over a three-month span. Subjects who didn’t apply heat only gained 2%, just the gain from training itself.
This extra gain is now thought to come from ‘heat shock’ proteins. A few scientists believe that it’ll be demonstrated that regular saunas can substantially aid in strength and muscle gain.