Objective: 2-month female SD rats carried through high intensity training in treadmill for 10 weeks. After training,rats displayed that their estrous cycle were inhibited to simulate phenomena of athlete secondary amenorrhea. We observed the change of bone's structure in exercise-induced estrous cycle inhibited female rats.
Experiment 1 The foundation of animal model in rats with estrous cycle inhibitedWe used 2-month female rats as our research objective. Rats were devided into three groups: control(n=20), middle intensity training group(n=20), high intensity training group(n=40)(treadmill, 6days/week, lOweeks).
The microscopes'result show the cortex area was larger , the amount of ob and bone cell were more in middle intensity training group than that in control.