Well I work out with
weights and I'm not particularly big at 5'7" about 150 pounds. But I am very flexible and like to think I can kick and punch fast and hard. Last night my instructor was saying that its much better for you legs to do stance work then squats as its a lot harder. Because you have to hold the posture for long periods of time where as with weights you are constantly moving. Larger stronger people lack speed but I wouldn't want to be on the receiving end of one of their punches.
I think weight training can help conditioning especially with forearms making your body firmer to be able to withstand
pain![/QUOTE]
The problem with Isometric exercise (static stance holding would fit this) is that it really only develops strenth in a very narrow range of motion, usually at/near the apex of a power arc - where you will be topping out on force anyway. Modifying deep stance work from static (isometric) to Tai Chi style slow movement (even adding some weights like a medicine ball, dumb bells or a straight bar) while maintaining good deep form stances would be more beneficial to power and strength. I think combining isometric (holding the bottom or top of a push up, partner resistence exercises against kicks or punches) with the dynamic (see above) is a good combination that builds strength within 'specificity' or the exact motion you need to apply that power to as well as being economical and building trust because of some of the partner work involved. Isometric/static stance work is a GREAT way of increasing your pain threshold, concentration, determination..... without taking up a lot of space.