Is it necessary to feel pain?!
Question:
Is it necessary to feel pain?
on the following day of having worked out to know that the muscle will grow?
or does it also grow without feeling pain on the following day?
Answers:
Yes it is necessary to feel paid 12 -24 hours after a workout to increase muscle mass. You have to damage the muscle fibres in order for them to heal, and during the healing process you increase muscle mass.