| Objective: Physical activity is a very important factor in promoting human body health.Developing physical activity habits during adolescence has a positive role in bone growthand promoting the peak bone mass in young girl. Increasing the peak bone mass in youngage not only can promote the bone health, but also to reduce the bone losing after middleage, and prevent the occurrence of postmenopausal osteoporosis. To observe the effects ofbadminton exercise on female college students’ bone mineral density (BMD) and relatedmarkers of bone metabolism markers, some influence factors were analyzed.Methods: Thirty-five female college students, with mean age, height, and weight, wererandomly divided into two groups: badminton training group (N=20) and control group(N=15). The students began to take part in acute physical exercise lasting60minutes. Aftera day of rest, the students began to take part in badminton exercise and training principletake3times per week (60~120min/times) in addition to participate in sports coursesarranged by the school (1times/week,60min/times). Respectively before the experimentsand after the11weeks of badminton exercise intervention, elbow vein blood samples werecollected from subjects during24~48hours in the fasting state. The BMD of lumbar spine,left hip and right hip were detected by dual energy X-ray absorptiometry (DEXA). Theserum level of total alkaline phosphatase (AKP), tartrate resistant acid phosphatase(TRACP), calcium (Ca), phosphorus (P), cholesterol kit (CHO) and triglycerides kit (TG)were detected by721-spectrophotometer. The serum level of parathyroid hormone (PTH),17-estradiol (E2), and1,25-(OH)2-D3were measured by radioimmunoassay. The serumlevel of bone alkaline phosphatase (ALP-B), osteoprotegerin (OPG) and insulin-likegrowth factorsⅠ(IGF-1) were detected by enzyme-linked immuno-sorbent assay (ELISA).Result:(1)：After acute exercise, the serum TRACP, Ca and P levels were significantlyhigher than that before exercise. While no significant difference was found in serum AKPlevels.(2)：After badminton exercise by11weeks, mean serum TRACP levels wassignificantly lower in sports girls than in controls. While no significant difference wasfound in other metabolism markers. The serum PTH, CHO and TG were significantlylower in sports girls when compared with before. Higher P levels in sports girls. The serumTRACP and P levels were significant higher in controls when compared with before. Whileno significant difference was found in other metabolism markers.Conclusion:(1)：Acute exercise can significantly stimulate bone transformation of thehealth female college students and make the bone absorption levels higher than boneformation levels. The present study suggested that acute exercise has negative influence inbone health.(2)：11weeks badminton exercise can significantly to lower the levels of serum TRACP,PTH, CHO and TG, but have no effect on BMD. The present study showed that11weeksbadminton exercise can improve the bone metabolism markers on female college studentsin a certain extent, which can inhibits bone absorption, maintain bone formation. |
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