Average muscle gain with steroids

The efficiency of human muscle has been measured (in the context of rowing and cycling ) at 18% to 26%. The efficiency is defined as the ratio of mechanical work output to the total metabolic cost, as can be calculated from oxygen consumption. This low efficiency is the result of about 40% efficiency of generating ATP from food energy , losses in converting energy from ATP into mechanical work inside the muscle, and mechanical losses inside the body. The latter two losses are dependent on the type of exercise and the type of muscle fibers being used (fast-twitch or slow-twitch). For an overall efficiency of 20 percent, one watt of mechanical power is equivalent to kcal per hour. For example, one manufacturer of rowing equipment calibrates its rowing ergometer to count burned calories as equal to four times the actual mechanical work, plus 300 kcal per hour, [16] this amounts to about 20 percent efficiency at 250 watts of mechanical output. The mechanical energy output of a cyclic contraction can depend upon many factors, including activation timing, muscle strain trajectory, and rates of force rise & decay. These can be synthesized experimentally using work loop analysis .

Supersets (performing one exercise followed immediate by another exercise without rest), drop sets (performing a set to muscular failure with a given load and then immediately reducing the load and continuing to train until subsequent failure) and heavy negatives (performing eccentric actions—the lowering of a weight—at a weight greater than concentric 1-repetition maximum) can be excellent additions to a mass-building routine. They help to induce greater metabolic stress and structural perturbations that can take your muscle growth to new heights. These strategies are particularly effective for advanced lifters who need to “shock” their body to spur greater growth.

Average muscle gain with steroids

average muscle gain with steroids

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