caa a22 4500 467941815 CHVBK 20180406153015.0 cr unu---uuuuu 170328e20060801xx s 000 0 eng 10.1007/s00421-006-0233-6 doi (NATIONALLICENCE)springer-10.1007/s00421-006-0233-6 Effect of specific inspiratory muscle warm-up on intense intermittent run to exhaustion [Elektronische Daten] [Tom Tong, Frank Fu] The effects of inspiratory muscle (IM) warm-up on the maximum dynamic IM function and the maximum repetitions of 20-m shuttle run (Ex) in the Yo-Yo intermittent recovery test were examined. Ten men were recruited to perform identical IM function test and exercise test in three different trials randomly. The control trial was without IM warm-up while the placebo and experimental trials were with IM warm-up by performing two sets of 30 breaths with inspiratory pressure-threshold load equivalent to 15% (IMWP) and 40% (IMW) maximum inspiratory mouth pressure, respectively. In IMW, maximum dynamic IM functions including the maximal inspiratory pressure at zero flow (P 0) and maximal rate of P 0 development (MRPD) were increased compared with control values (P<0.05). The Ex was also augmented [mean (SD)] [19.5% (12.6)] while the slope of the linear relationship of the increase in rating of perceived breathlessness for every 4th exercise interval (RPB/4i) was reduced (P<0.05). In IMWP, although increase in Ex and reduction in RPB/4i were occurred concomitantly in some subjects, the differences in Ex, RPB/4i and dynamic IM functions between control and IMWP trials were not statistically significant. For the changes (Δ) in parameters in IMW and IMWP (n=20), negative correlations were found between Δ RPB/4i and Δ Ex (r=−0.92), ΔP 0 and Δ RPB/4i (r=−0.48), and Δ MRPD and Δ RPB/4i (r=−0.54). Such findings suggested that the specific IM warm-up in IMW may entail reduction in breathlessness sensation, partly attributable to the enhancement of dynamic IM functions, in subsequent exhaustive intermittent run and, in turn, improve the exercise tolerance. Springer-Verlag, 2006 Dynamic muscle function nationallicence Inspiratory mouth pressure nationallicence Inspiratory flow nationallicence Breathlessness nationallicence Exercise performance nationallicence Tong Tom Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, NAB210, L2, David C. Lam Building Shaw Campus, Hong Kong Baptist University, Renfrew Road, Kowloon Tong, Hong Kong, China aut Fu Frank Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, NAB210, L2, David C. Lam Building Shaw Campus, Hong Kong Baptist University, Renfrew Road, Kowloon Tong, Hong Kong, China aut European Journal of Applied Physiology Springer-Verlag 97/6(2006-08-01), 673-680 1439-6319 97:6<673 2006 97 421 https://doi.org/10.1007/s00421-006-0233-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-006-0233-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tong Tom Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, NAB210, L2, David C. Lam Building Shaw Campus, Hong Kong Baptist University, Renfrew Road, Kowloon Tong, Hong Kong, China aut NATIONALLICENCE 700 1- Fu Frank Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, NAB210, L2, David C. Lam Building Shaw Campus, Hong Kong Baptist University, Renfrew Road, Kowloon Tong, Hong Kong, China aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 97/6(2006-08-01), 673-680 1439-6319 97:6<673 2006 97 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer