碩士 / 國立臺灣師範大學 / 運動競技學系 / 106 / Purpose: To investigate the effect of upper limb and lower limb ischemic preconditioning (IPC) on 2000-m indoor rowing performance. Methods: Fourteen senior high school male rowers were recruited (age, 17 ± 1 years；body height，174 ± 6 cm；body weight，66 ± 5 kg；best 2000-m indoor rowing record, 439 ± 15 s). In a randomized and counterbalanced design, participants received 3 treatments, the upper limbs IPC (UIPC, 220 mmHg cuff over proximal arms), the lower limbs IPC (LIPC, 220 mmHg cuff over proximal thighs), and SHAM treatment (40 mmHg cuff over proximal thighs). After three cycles of 5-min ischemia and 5-min reperfusion, participants rested for 50 minutes, followed by 2000-m rowing ergometer time trial. Results: There was no significant difference among the 3 treatments on 2000-m rowing time (UIPC vs. LIPC vs. SHAM, 445 ± 14 vs. 447 ± 16 vs. 448 ± 11 s, F = 1.002, p > .05). The average power output of each 500-m was also not significantly different among treatments. The serum lactate concentration, maximal heart rate and rating of perceived exertion after rowing were not affected by different treatments. LIPC significantly increased the blood flow of vastus lateralis muscle during the first 20 min of resting phase (LIPC vs. SHAM, p < .05), as measured by near-infrared spectroscopy. However, the tissue saturation index and blood flow during rowing were not significantly different among treatments. Conclusion: LIPC could increase muscular blood flow at rest, however, neither upper nor lower limbs IPC has ergogenic effect on 2000-m rowing performance.
| Identifer | oai:union.ndltd.org:TW/106NTNU5809001 |
| Date | January 2018 |
| Creators | Hsu, Wen-Yen, 許文彥 |
| Contributors | Cheng, Ching-Feng, 鄭景峰 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 56 |
Page generated in 0.0092 seconds