As opposed to the human body controlling muscle growth from within?
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They don’t, there are some studies that show just imagining doing workouts for a given amount of time works, albeit less than actually doing the workout.
When you lift weights, you are basically using more energy than you usually do in a normal day. This process damages the muscles microscopically which then creates small spaces with the muscles. When you rest and sleep, the muscles fix themselves with more muscles tissue through the food and proteins which itself helps in growing the muscles.
lifting weights doesn’t build muscles, it tears muscles
eating right and sleeping enough builds muscles
so you keep breaking them and then building them up bigger
I see all responses and I don’t see yet the correct one.
When we lift weight muscles are damaged a little bit and they grow cause when they regenerate they “overbuilding” themselves.
So basicly they don’t grow while lifting. They grow after when they regenerate
When you do work (exercise) and damage bones or muscles it doesn’t want to constantly repair itself so it repairs itself stronger. Your body is lazy, so once you hit that point where your body isn’t constantly trying to prevent new damage (ie. Strong enough for daily life) it stops growing.
I believe it’s as simple as causing damage. Lifting weights tears the muscle, which then grows more to repair.
Your body does control it from within and you don’t need weights and you don’t need muscle tears.
You need adequate Nutrition and protein and rest, also your body needs to think it needs more muscle.
Our entire physiology adapts.
They don’t.
Studies show that you can work out a single arm and both arms will get stronger.
Muscles are expensive. They need calories and proteins and produce additional strain on the circulatory system. You can manage all this with additional food but the body assumes that food will be in short supply.
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