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Anonymous
>>232161
The stronger the muscle is, the more tighter it gets. If your back is to strong your back will be tighter in a resting state.
If your back is too tight, your gut front gets too extended, thus it hurts. Once you forcefully tighten your front muscles you create a balance between the two muscles.
Thats the reason why its stupid to train muscle a but to ignore atagonist muscle b.
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