If you notice , Most women have decent calves .... In fact fat people have awesome calves ...unfortuneatly they suck everywhere else .... But this is mostly due from walking on your toes as opposed to walking on your heals .... and the shock that goes with that is lower back trouble ... that is why running is considered not as good for you as is fast walking ... the constant pounding of the pavement is bad on the joints and back .... focusing on the toes also simmulates a shock asorber. cushioning the shock to the heals ....

good luck