TY - JOUR
T1 - Inspiratory muscle warm-up attenuates muscle deoxygenation during cycling exercise in women athletes
AU - Cheng, Ching Feng
AU - Tong, Tomas K.
AU - Kuo, Yu Chi
AU - Chen, Pin Hui
AU - Huang, Hsin Wei
AU - Lee, Chia Lun
N1 - Funding Information:
The authors wish to thank the participants who contributed their time and effort to undertake this study and to Polypact International Co., Ltd., who sponsored the Cortex metabolic analysis system. This work is particularly supported by “Aim for the Top University Plan” of National Taiwan Normal University and the Ministry of Education, Taiwan .
PY - 2013/5/1
Y1 - 2013/5/1
N2 - This study examines the effects of inspiratory muscle warm-up (IMW) on performance and muscle oxygenation during cycling exercise. In a randomized crossover study of 10 female soccer players, the IMW, placebo (IMWP) and control (CON) trials were conducted before two 6-min submaximal cycling exercises (100 and 150W) followed by intermittent high-intensity sprint (IHIS, 6×10s with 60s recovery). The reduction in tissue saturation index (TSI) in legs in the IMW were significantly less than those in IMWP and CON (P<0.01) during submaximal cycling exercises. The average reduction in TSI during the IHIS test with IMW was significantly less than those in the IMWP and CON (P=0.023). Nevertheless, the IHIS performance with IMW did not differ from that in other trials. In conclusion, the leg TSI during continuous submaximal cycling exercise followed by intermittent sprinting was likely improved by specific IMW (40% maximal inspiratory mouth pressure), which did not enhance IHIS performance.
AB - This study examines the effects of inspiratory muscle warm-up (IMW) on performance and muscle oxygenation during cycling exercise. In a randomized crossover study of 10 female soccer players, the IMW, placebo (IMWP) and control (CON) trials were conducted before two 6-min submaximal cycling exercises (100 and 150W) followed by intermittent high-intensity sprint (IHIS, 6×10s with 60s recovery). The reduction in tissue saturation index (TSI) in legs in the IMW were significantly less than those in IMWP and CON (P<0.01) during submaximal cycling exercises. The average reduction in TSI during the IHIS test with IMW was significantly less than those in the IMWP and CON (P=0.023). Nevertheless, the IHIS performance with IMW did not differ from that in other trials. In conclusion, the leg TSI during continuous submaximal cycling exercise followed by intermittent sprinting was likely improved by specific IMW (40% maximal inspiratory mouth pressure), which did not enhance IHIS performance.
KW - Muscle oxygenation
KW - Near-infrared spectroscopy
KW - Pulmonary oxygen uptake
KW - Warm-up
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U2 - 10.1016/j.resp.2013.02.029
DO - 10.1016/j.resp.2013.02.029
M3 - Article
C2 - 23499567
AN - SCOPUS:84876392058
SN - 1569-9048
VL - 186
SP - 296
EP - 302
JO - Respiratory Physiology and Neurobiology
JF - Respiratory Physiology and Neurobiology
IS - 3
ER -