Odpowiedzi na post #5 274

Do you even know what tension is? When a muscle contracts the resistive force is tension, it's as simple as that. No shit "tension" causes muscle...

BRB gonna start jelqing my arms so I get huge biceps

Jesus I hope you're not a personal trainer or a physiotherapist, because you underestimate beginner lifters as if they have the IQ of a fucking...