2010-01-30 10:01:28 +0000 #1
2010-01-30 10:08:57 +0000 #2
big ah! ! I had poor long jump, the teacher let me squat weight-bearing for three months, the results of a length longer sub-test scores. 200 meters are basically relying on the leg muscles ah! ! In short exercises squat and 200-meter pairs of Leapfrog are all of great help.
2010-01-30 10:38:04 +0000 #3
be helpful, can strengthen thigh muscles, increase leg strength
