Influence of Wearing Compression Tights During Prolonged Exercise on Muscle Fatigue, Muscle Damage and Inflammatory Responses
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.37 Vol.37】
ABSTRACT
The purpose of the present study was to determine the influence of wearing compression garments (compression tights) with different pressure intensity on muscle function, metabolite and endocrine responses, muscle damage and inflammatory responses to 120 min run at moderate intensity. Eight healthy young men conducted four trials on different days, consisting of [1] trial with wearing compression garments of heavy pressure intensity (approximately 40 hPa, High), [2] trial with wearing compression garments of moderate pressure intensity (approximately 20 hPa, Middle), [3] trial with normal sport garments (pressure intensity was set below 10 hPa, CON). Each trial was performed with randomized orders, and four weeks of rest period were provided between the trials.
Exercise consisted of 120 min of running on treadmill at 60% of maximal oxygen uptake (VO₂max). Time-courses of changes in power output for lower limb muscles (maximal jump height), heart rate, ratings of perceived exertion (RPE), metabolic and endocrine responses, muscle damage and inflammatory responses were evaluated.
Maximal jump height was decreased after 120 min of running in the High and CON trials, whereas the Middle trial showed no significant reduction of maximal jump height. Moreover, the maximal jump height immediately after the 120 min of running was significantly higher in the Middle than in the High (P < 0.05). Average heart rate during 120 min of running was lowest in the Middle trial, with a significant difference from the value of CON trial (P < 0.05). Although no significant difference among three trials was observed in RPE for leg muscles over 120 min of running, the RPE for respiration was significantly lower in the Middle trial than in the CON trial (P < 0.05). A 120 min of running increased serum cortisol, myoblogin and creatine kinase concentrations, with no significant difference among three trials at any time points. In contrast, exerciseinduced elevation of plasma IL-6 concentration was significantly lower in the Middle trial than in the CON trial (P < 0.05). However, there was no significant difference in plasma IL-6 response between the High trial and CON trial. These results indicate that wearing compression garments with moderate pressure intensity (approximately 20 hPa) attenuated exercise-induced fatigue of lower limb muscles and elevation of heart rate, and inflammatory responses to prolonged (120 min) running at moderate intensity.
DESCENTE SPORTS SCIENCE Vol.37/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
The purpose of the present study was to determine the influence of wearing compression garments (compression tights) with different pressure intensity on muscle function, metabolite and endocrine responses, muscle damage and inflammatory responses to 120 min run at moderate intensity. Eight healthy young men conducted four trials on different days, consisting of [1] trial with wearing compression garments of heavy pressure intensity (approximately 40 hPa, High), [2] trial with wearing compression garments of moderate pressure intensity (approximately 20 hPa, Middle), [3] trial with normal sport garments (pressure intensity was set below 10 hPa, CON). Each trial was performed with randomized orders, and four weeks of rest period were provided between the trials.
Exercise consisted of 120 min of running on treadmill at 60% of maximal oxygen uptake (VO₂max). Time-courses of changes in power output for lower limb muscles (maximal jump height), heart rate, ratings of perceived exertion (RPE), metabolic and endocrine responses, muscle damage and inflammatory responses were evaluated.
Maximal jump height was decreased after 120 min of running in the High and CON trials, whereas the Middle trial showed no significant reduction of maximal jump height. Moreover, the maximal jump height immediately after the 120 min of running was significantly higher in the Middle than in the High (P < 0.05). Average heart rate during 120 min of running was lowest in the Middle trial, with a significant difference from the value of CON trial (P < 0.05). Although no significant difference among three trials was observed in RPE for leg muscles over 120 min of running, the RPE for respiration was significantly lower in the Middle trial than in the CON trial (P < 0.05). A 120 min of running increased serum cortisol, myoblogin and creatine kinase concentrations, with no significant difference among three trials at any time points. In contrast, exerciseinduced elevation of plasma IL-6 concentration was significantly lower in the Middle trial than in the CON trial (P < 0.05). However, there was no significant difference in plasma IL-6 response between the High trial and CON trial. These results indicate that wearing compression garments with moderate pressure intensity (approximately 20 hPa) attenuated exercise-induced fatigue of lower limb muscles and elevation of heart rate, and inflammatory responses to prolonged (120 min) running at moderate intensity.
DESCENTE SPORTS SCIENCE Vol.37/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Kazushige Goto*1, Sahiro Mizuno*2, Takuma Morishima*3 |
|---|---|
| University or institution | *1 Faculty of Sport and Health Science, Ritsumeikan University, *2 Graduate School of Sport and Health Science, Ritsumeikan University, *3 Research Fellow of the Japan Society for the Promotion of Science |
Keywords
Wearing pressure, Fatigue, Muscle damage, Muscular power, Inflammatory action