|
| 场地自行车4 000 m追逐赛不同起动方式摄氧动力模型的分析 |
| Oxygen uptake Kinetics model of the different starts in 4000m track cycling performance |
| |
| DOI： |
| 中文关键词:场地自行车 4 000 m追逐赛 输出功率 摄氧动力 体力分配 |
| 英文关键词:track cycling 4000m race power output oxygen uptake kinetics pacing strategy |
| 基金项目:上海市体育局攻关课题（12JT012） |
|
| Hits: 3069 |
| Download times: 4415 |
| 中文摘要: |
| 目的：研究4 000 m场地自行车运动VO2反应，及前15 s高功率起动对运动成绩的影响。方法：11名男子自行车运动员在功率车上进行递增负荷试验和两种不同起动强度的4 000 m运动。首先进行前60 s平均功率（128±2）%MAP即（501.7±41.9）w强度对照模式运动；5 h后进行模拟模式运动，强度在第8~10 s达到最高值235%MAP（928.3±77.6）w，后逐步下降，15 s时至平均功率（421.9±40.1）w，维持15~60 s。60 s之后两组均进行自由速度模式，强度控制在380~420 w之间。结果：整个测试过程模拟组较对照组平均功率高19 w左右，有统计学差异。模拟组15~60 sVO2高于对照组，模拟组15s~60sVO2高于对照组，而AOD却低于对照组，对整个运动表现有促进作用。结论：4 000 m场地自行车运动前15 s高输出功率可伴随着更快的VO2 反应而不是单一归于节省时间理论，并可促进中等距离自行车计时运动员的摄氧动员能力。 |
| 英文摘要: |
| To study the VO2 reaction in 4000m track cycling and the effect of high-power start in the first 15s on athlete’s performance. Method: 11 male cyclists performed 4000m cycling on the ergometers for load-increasing trials with two different start intensity. In the first 60s, intensity control mode with the average power of 128±2%MAP(501.7±41.9) w was performed and the exercise changed to simulation mode 5 hours later. The intensity reached the peak value of 235%MAP(928.3±77.6) w at 8s-10s and then decreased gradually to the average power of 421.9±40.1w at 15s and stayed for 15s-60s. After 60s, both the groups took the mode of free cycling speed and the intensity was 380w-420w. Result: In the whole trial process, the average power of the simulation group was 19w higher than that of the control group, with statistical differences. VO2 of the simulation group was higher than that of the control group. Conclusion: High power output at the first 15s of 4000m track cycling may accompany faster VO2 response and not just saving time. It can enhance the oxygen uptake ability of the medium-distance cyclists. |
| View Full Text View/Add Comment Download PDF reader |
| Close |
