Cool-Water Immersion Reduces Postexercise Quadriceps Femoris Muscle Perfusion More Than Cold-Water Immersion
1
Issued Date
2022-07-01
Resource Type
ISSN
01959131
eISSN
15300315
Scopus ID
2-s2.0-85132453422
Pubmed ID
35220370
Journal Title
Medicine and Science in Sports and Exercise
Volume
54
Issue
7
Start Page
1085
End Page
1094
Rights Holder(s)
SCOPUS
Bibliographic Citation
Medicine and Science in Sports and Exercise Vol.54 No.7 (2022) , 1085-1094
Suggested Citation
Mawhinney C., Heinonen I., Low D.A., Han C., Jones H., Kalliokoski K.K., Kirjavainen A., Kemppainen J., Di Salvo V., Lolli L., Cable N.T.I.M., Gregson W. Cool-Water Immersion Reduces Postexercise Quadriceps Femoris Muscle Perfusion More Than Cold-Water Immersion. Medicine and Science in Sports and Exercise Vol.54 No.7 (2022) , 1085-1094. 1094. doi:10.1249/MSS.0000000000002898 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84785
Title
Cool-Water Immersion Reduces Postexercise Quadriceps Femoris Muscle Perfusion More Than Cold-Water Immersion
Other Contributor(s)
Abstract
Purpose The muscle perfusion response to postexercise cold-water immersion (CWI) is not well understood. We examined the effects of graded postexercise CWI upon global and regional quadriceps femoris muscle perfusion using positron emission tomography and [15O]H2O. Methods Using a matched-group design, 30 healthy men performed cycle ergometer exercise at 70% VO2peak to a core body temperature of 38°C, followed by either 10 min of CWI at 8°C, 22°C, or seated rest (control). Quadriceps muscle perfusion; thigh and calf cutaneous vascular conductance; intestinal, muscle, and local skin temperatures; thermal comfort; mean arterial pressure; and heart rate were assessed at preexercise, postexercise, and after CWI. Results Global quadriceps perfusion was reduced beyond the predefined minimal clinically relevant threshold (0.75 mL per 100 g·min-1) in 22°C water versus control (difference (95% confidence interval (CI)), -2.5 (-3.9 to -1.1) mL per 100 g·min-1). Clinically relevant decreases in muscle perfusion were observed in the rectus femoris (-2.0 (-3.0 to -1.0) mL per 100 g·min-1) and vastus lateralis (-3.5 (-4.9 to -2.0) mL per 100 g·min-1) in 8°C water, and in the vastus lateralis (-3.3 (-4.8 to -1.9) mL per 100 g·min-1) in 22°C water versus control. The mean effects for vastus intermedius and vastus medialis perfusion were not clinically relevant. Clinically relevant decreases in thigh and calf cutaneous vascular conductance were observed in both cooling conditions. Conclusions The present findings revealed that less noxious CWI (22°C) promoted clinically relevant postexercise decreases in global quadriceps muscle perfusion, whereas noxious cooling (8°C) elicited no effect.