How to safely and effectively build muscle, whether for looks or for strength. Also, how muscles work physiologically.

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18
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3answers
3k views

Are “fast-twitch” and “slow-twitch” muscles actual scientific terms? If so, are they useful for the strength trainer?

When I first started to strength train in high school, one of the first things I remember reading in the weight room was this giant chart that highlighted areas of so-called fast-twitch and ...
8
votes
3answers
399 views

Is growth of a muscle limited to the size of the opposing muscle?

I've read and heard from several bodybuilders (Arnold, big Youtube guys) that the pectorals will only grow in proportion to the upper lats. Both must be trained equally to see growth. What is the ...
2
votes
3answers
973 views

How often to take measurements?

How often should someone trying to gain muscle mass take measurements? The only answer I could find was for weight loss, which from experience shouldn't be more than once a month. Can that ...
7
votes
1answer
398 views

Why do you have to exercise to build muscle?

Many chemical processes that used to be time-consuming or tiresome can be worked around, e.g migraine, vitamin deficit, bad eye-sight. Endurance training and muscle anabolism are just chemical ...
6
votes
2answers
316 views

Muscular Atrophy in Senior Citizens

To what extent can a good exercise programme help to recover lost muscle in people over 70 who, while very fit and active, have not exercised regularly in earlier years?