Free Weights VS Machines
Free weights increase anabolic hormones more than machines? Anabolic means “building up” and catabolic means “breaking down.” Anabolism and catabolism are the two sides of metabolism. Building up and breaking down components to maintain the function of the body and the balance of energy stores.
An ongoing controversy in strength training is the relative benefit of free weights versus machines. Gyms typically emphasize machines because they are more profitable and considered safer than free weights. Free weights and machines are not the same. Even when they work the same muscle groups. For example, squats and leg presses appear similar. While squats, a closed kinetic-chain exercise. While leg presses are open chain.
Closed kinetic chain means that the lower or upper body stays in contact with the ground during the movement. Free weights require more spinal stabilization, which increases the load of the exercises. Free weights also trigger a greater neural-hormonal response.
Elevated anabolic hormones appear to promote muscle hypertrophy and strength. Research found testosterone and growth hormone levels were greater following the squat than the leg press. Even though the perception of effort during the exercise was equal. At least for the large muscle, lower body exercises, free weights increased anabolic hormones more than machines.
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