Posts tagged Weight Training
How Long Does It Take To Lose Muscle After A Layoff?

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Your training program also impacts how quickly you detrain and lose muscle. Endurance athletes may experience muscle atrophy slower in part because their muscles are leaner and predominantly slow-twitched muscle fibers compared to power athletes, who predominantly have fast-twitch muscle fibers. For example, the book “Sports-Specific Rehabilitation” reports that endurance athletes such as rowers took up to 12 weeks to lose muscle mass and slow-twitched muscle fibers. On the other hand, power lifters, competitive weightlifters and football players can lose muscle strength as early as two weeks with inactivity.

Muscle loss with an increase of fat in the muscle, also known as sarcopenia, is a common aging process. Because this occurs, the elderly may experience quicker muscle loss or more muscle loss during inactivity compared to younger individuals. A 2009 University of Queensland study found that elderly men and women experienced an increase in sarcopenia after 24 weeks of inactivity. Unlike age, gender has not been shown to influence the rate of muscle loss with detraining.

Are steroids safe?

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Anabolic steroid abuse has been associated with a wide range of adverse side effects ranging from some that are physically unattractive, such as acne and breast development in men, to others that are life threatening, such as heart attacks and liver cancer. Most are reversible if the abuser stops taking the drugs, but some are permanent, such as voice deepening in females.

Most data on the long-term effects of anabolic steroids in humans come from case reports rather than formal epidemiological studies. From the case reports, the incidence of lifethreatening effects appears to be low, but serious adverse effects may be underrecognized or underreported, especially since they may occur many years later. Data from animal studies seem to support this possibility. One study found that exposing male mice for one-fifth of their lifespan to steroid doses comparable to those taken by human athletes caused a high frequency of early deaths.