The effects of mountain bike suspension systems on energy expenditure, physical exertion, and time trial performance during mountain bicycling.

摘要: The purpose of this 3-Phase study was to investigate the effects suspension systems on muscular stress, energy expenditure, and time trial performance during mountain biking. Three were tested, a rigid frame bike (RIG), fork (FS), front rear (FSR). Phase I II consisted cycling at 16.1 km.hr-1 over flat, bumpy course for 63 min. III ascending (ATT), descending (DTT), cross country (XTT) trials. assessed stress by 24 h change in CK, HR, VO2, VE, responses systems. hr CK greater RIG than FS FSR (+91.9 +/- 79.5 IU vs +8.6 17.5 +9.7 21.8 IU). Mean HR (153.7 15.6 bpm 146.7 15.4 bpm, 146.3 16.2 bpm). Subjects rode significantly faster XTT (30.9 2.0 min 32.3 3.6 min, 3.2 min). RPE lower RIG, however, no differences observed ATT, or DTT. Cyclists incurred less indicated when riding FSR. Although weigh from 0.7 2.2 kg more expenditure that resulted finishing RIG. Language: en