Kerkhof, F. (Faes) (2011) Fatigue during Hand Cycling in Men and Women : The role of central & peripheral fatigue in hand cycling: practical training implications. thesis, Human Movement Sciences.
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Abstract
Introduction: Wheelchair-dependency is often accompanied by low physiological capacity that may lead to secondary health problems and a decrease in quality of life. Exercise is beneficial. However, little is known about exercise and fatigue in hand cycling, especially in women. More is known about fatigue in cycling, so multiple measures of fatigue were compared between the two. The aims of this research are to gain insight into the onset and development of fatigue during hand cycling and to examine if women fatigue differently than men. Method: 10 male and 1 0 female able-bodied participants conducted an incremental maximal exercise test (lET) on both a hand cycle and a regular cycle. 1 0 Males also completed a repeated intermitted exercise test (RIOT). During all test multiple measures of fatigue were determined. PO/EMG relationship and respiratory/metabolic parameters (V02, HR, VE, PO and RPE) were used to express fatigue. Pre and post the lET voluntary activation of 1st dorsal interosseus muscle (FDl), was determined as well. Results: Cardia-ventilatory values are lower in hand cycling than cycling during an incremental maximal exercise test. All cardia-ventilatory parameters were significantly lower during RIOT than during lET at the same PO levels for both cycling and hand cycling. The PO/EMG relationship showed that all muscle groups differ significantly from the hand cycling extensor group. Pre lET VA score was higher than post in hand cycling. Post lET VA score was higher than pre VA score in cycling. Females displayed lower values Vo2peak, V02peak/kg, VEpeak and RPE. No main or interaction effect of gender was found in the PO/EMG relationship. No effect of gender was found in VA. Discussion: The lower cardia-ventilatory parameters in hand cycling and the faster build-up of fatigue during an lET show that peripheral fatigue plays a major role in hand cycling. Not all muscle groups fatigue at the same rate. VA also point towards a major role for peripheral fatigue in hand cycling, because the lack of a lower VA after the cycling lET implies that central fatigue seems to only influence the exercised muscles. The absence of difference between men and women in the EMG/PO relationship and VA, combined with the large absolute difference in exercise capacity indicate that the PO/EMG relationship is a relative measure of fatigue. Conclusion: This study showed that there are major differences between cycling and hand cycling on a fatiguing level. Especially the role of peripheral fatigue in hand cycling is evident. Rehabilitation and exercise professionals should acknowledge these differences and adept their exercise protocols accordingly JY lower ACSM guideline intensities for hand cycling training. Researchers, on their turn, should investigate he relation between peripheral and fatigue during hand cycling to obtain an integrative approach in the lowering of fatigue, increasing of physical capacity and thus improving quality of life for wheelchairdependent people.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Supervisor: and Hettinga, Dr. F.J. |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 11:00 |
| Last Modified: | 25 Jun 2020 11:00 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2061 |
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