Effects of different resistances and saddle positions on cycling efficiency
| Autor: | Po-Ling Chang, 張柏苓 |
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| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 Purpose: To investigate the effect of cycling efficiency with different saddle position when resistance increased at 90 rpm. This thesis presented numerous saddle height definitions, and the difference of methodology among previous studies in literature review. Methods: Eleven college participants (height 174.5 ± 6.1 cm, weight 70.8 ± 6.2 kg, age 25.3 ± 1.3 years) joined this experiment voluntarily, riding on a bicycle simulator, which could adjust the saddle position and cycling work rate. In the experiment design with 2 work rates × 9 saddle positions, lower limb kinematic, pedal kinetic, lower limb electromyography, comfort scale data were recorded to assess the efficiency. A two-way repeated measures ANOVA was used for statistics. Results: When resistance increased, lower and more forward saddle position would lead to the decrease of lower limb joint ROM, unchanged pedal impulse, decrease of lower limb muscle activation, and the middle saddle height showed the most comfortable by comfort scale. Conclusion: This thesis found that riding with 90 rpm and lower saddle position would perform more efficiently when resistance increased. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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