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Heat treatment boosts anabolic effect of strength training
We're not quite sure how strength athletes can apply the principle that Japanese sports scientists have written about in the Journal of Physiological Sciences. The equipment the scientists used to enhance post-strength training anabolic processes in muscles is not yet available. At least, not yet where ordinary mortals do their shopping. Or might infrared lamps be an alternative?
Heat treatment, or heat stress, has a mild anabolic effect. Strength training also has an anabolic effect. So do the two reinforce each other? The Japanese researchers set up an experiment to answer the question, using 8 young men with an average age of 22. The men were physically active but did not do weight training.
For the experiment the men trained their leg muscles using a leg-extension machine, doing four sets of six reps. The men rested for 2 minutes between sets. The researchers took small amounts of muscle cell out of the subjects' leg muscles before, immediately after and 60 minutes after the mini-workout, and measured the activity of anabolic signal molecules in the cells.
The heat treatment had no effect on AMPK, S6K1, eEF2, ERK1/2 or p38.
The researchers speculate that the heat treatment activates the key anabolic regulator molecule Akt, which starts a cascade of reactions in the muscle cell.
"Although we expect that resistance exercise with heat stress will be a useful tool for maintaining and improving muscle mass, future studies should focus on the regulation of mTOR signaling molecules and the rate of protein synthesis in human skeletal muscle", the Japanese conclude.
We're not quite sure how strength athletes can apply the principle that Japanese sports scientists have written about in the Journal of Physiological Sciences. The equipment the scientists used to enhance post-strength training anabolic processes in muscles is not yet available. At least, not yet where ordinary mortals do their shopping. Or might infrared lamps be an alternative?
Heat treatment, or heat stress, has a mild anabolic effect. Strength training also has an anabolic effect. So do the two reinforce each other? The Japanese researchers set up an experiment to answer the question, using 8 young men with an average age of 22. The men were physically active but did not do weight training.
For the experiment the men trained their leg muscles using a leg-extension machine, doing four sets of six reps. The men rested for 2 minutes between sets. The researchers took small amounts of muscle cell out of the subjects' leg muscles before, immediately after and 60 minutes after the mini-workout, and measured the activity of anabolic signal molecules in the cells.
The heat treatment had no effect on AMPK, S6K1, eEF2, ERK1/2 or p38.
The researchers speculate that the heat treatment activates the key anabolic regulator molecule Akt, which starts a cascade of reactions in the muscle cell.
"Although we expect that resistance exercise with heat stress will be a useful tool for maintaining and improving muscle mass, future studies should focus on the regulation of mTOR signaling molecules and the rate of protein synthesis in human skeletal muscle", the Japanese conclude.
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