joolee said:
there are two types of muscles: slow-twitch and fast-twitch.
There are 2 types of muscle fibers. I'm being anal, but it is very different. 'Types' of muscles would have to devide into a variety of forms... such as posterior, and anterior. Or Extensor, reflexor. or in particular context, primary and secondary.
joolee said:
slow twitch are those that look firm and toned,
'tone' is garbage. There is no such thing as 'tone'. There
is low bodyfat. And being leaner will show more lines and cuts.
Unless your refering to
Tonus. which is the muscle storing residule tension while not working. basically 'natural flexing'. ut i doubt that, as that is distinctly a response to fast twich work, and CNS training.
joolee said:
and fast twitch muscles would make you look big and built.
True. or... true-er. Fast-twich fibers have the largest capacity for growth. but the amount of these people have varies to the individual. average is 40-50%. 'genetic freaks' can get up to the 80-90s, while the very, very, very rare can get only 20-30%. Sucks to be them.
joolee said:
i cant explain that well so google them if you want. however doing heavy weights / push ups
A push up is only around 65-70% of your body weight. Since when is that 'heavy' ?
joolee said:
would prolly gain you fast twitch ones, so i would recommend you do aerobics or try exercising the whole body to lose the fat on your arms.
You can't 'gain' fast-twitch muscle fibers! Your basically stuck with what you were born with. You can, on the other hand, increase their size.
Exercising the whole body is a good idea to loose weight. Hell, why only exercise half anyway? whats the point? Its common sense. aerobics... well, use at your own peril. Anaerobic work is always better.
But the most important thing is... eat better. remember this maxim: "You can not outrun a donut".
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Another thing which bothered me, what is the point of bringing up muscle fibers? I see no relevance to it in the question of getting slimmer arms. She needs to loose fat, not care about her muscle cross-section.