First remember that toning and spot-reducing are myths! High reps with low weight may burn some calories, but do nothing for muscle shape or size. Weight has to be enough to force the muscle to respond: any exercise you do for more than 12 reps is fairly useless(except for abs)Try to pyramid by STARTING with 12 reps, add weight,do 10, add more ,do 8...as for females building big muscles, it takes tons of work, nutrition and steroids(unless you were born with high testosterone levels)
__________________
John
|