Effect of aerobic and strength training on serum PTH, calcium, albumin and alkaline phosphatase in postmenopausal women

The purpose of this study was to consider the effect of eight weeks aerobic and strength training on serum PTH, calcium, albumin and alkaline phosphatase in postmenopausal women.35 post menopause women, (55-70 years), of Jahandidegan center of Tehran were selected and randomly divided to three groups as aerobic (n=12), strength (n=13) and control (n=10) groups. Aerobic training program include jogging and aerobic movements, with 60- 70% MHR intensity(8 weeks, 3 times per week, 40minute per session), And Strength training program with emphasize on main muscle groups (8 weeks, 3 times per week, 1 hour per session),with30-40%1RM,8-10rep,1set to 60- 80%1RM,8-10rep,1set . One way analysis of variance (ANOVA) used to compare differences between groups. The results showed that PTH and alkaline phosphatase significantly increase after aerobic and strength training in comparison with control group (P≤0.05). But the significant difference was not observed between these two groups. No significant difference was observed in serum calcium between two trained and control groups (p≥0.05). However a significant decrease was observed in strength group (P≤0.05). Furthermore, the significant change was not observed in albomin after training program. Increase in PTH and alkaline phosphatase concentrations in normal range seem to promote anabolism procedure of bone formation. The result of this study shows that both two type of training have same effects on bone markers and hormonal factors.