Most people go to the gym and use stair-climbing machines or pedal backward
in "spinning" (indoor group cycling) classes. These are both fabulous
exercises, but people get the idea that they are toning their hamstrings
and buttocks. Computer analysis done by Weill Medical College at Cornell
University showed that the quadriceps actually do a lot of the work when
you use stair-climbing machines or take "spinning" classes.
If you really want to tone your buttocks and hamstrings, you should also
try doing lunges, or even try doing some squats on a squat machine. You
should also try the leg-curl machine to tone your hamstrings. Stair-climbing
machines offer great aerobic exercise, but remember that they mostly tone
your "quads," as bodybuilders often call them.
