運動後按摩對生理的效益值得商榷


  Aug. 19, 2004 -根據運動醫學暨科學期刊(Medicine & Science in Sports & Exercise)刊載研究結果顯示,運動後按摩可增加皮膚而非大腿骨動脈的血流,讓血液從恢復中的肌肉中快速流動。
  
  來自英國Alsager 曼徹斯特大都會大學人類運動生物物理學研究及臨床中心的Tessa Hinds指出,按摩常是運動員於運動後恢復能力的一種方式,他們深信按摩能恢復疲勞及有助於肌肉復原,而不同種類的按摩也被視為可以加強肌肉血液的流動。
  
  為了確定按摩效果和肌肉恢復過程的相關性,研究人員量測13位健康,年齡21.0 ± 1.4歲之男性動態運動後及按摩/休息後的大腿動脈血流(FABF)、皮膚血流(SKBF)、皮膚和肌肉溫度(SKT, MT),及血中乳酸鹽濃度(BLa)。
  
  在重覆三次兩分鐘的向心股四頭肌運動,受測者給予兩次6分鐘之撫壓按摩[處理組],及允許休息[控制組];受測者自行選擇按摩或休息方式,但兩種方式必須至少間隔4天,量測時間為基礎線、運動剛完畢、按摩/休息之中段及結束。
  
  對股四頭肌的按摩,及平均FABF而言,處理組和控制組比較並不顯著(760 ± 256 mL/minute vs. 733 ± 161 mL/minute; P > .05);在MT、血中乳酸鹽濃度、心率及血壓方面也同樣不顯著。
  
  至於,股四頭肌的按摩,對平均SKBF是顯著的(150 ± 49 [au] vs. 6 ± 4 au; P < .05),平均SKBF也是顯助顯著的(32.2 ± 0.9 o C vs. 31.1 ± 1.3 o C; P < .05)。
  
  研究人員指出,這項試驗結果可做以下的推斷,即受按摩的動脈血流(FABF)沒有增加,而皮膚血流(SKBF)增加可能是從深層組織流來的血液所造成;然而,在本試驗受測者之肌肉溫度(MT),及血中乳酸鹽濃度(BLa)的資料僅能對少許肌肉的血流轉向的新陳代謝及溫度調解的衝擊提出建議。
  
  研究人員進一步指出,儘管確定按摩的生理學影響可能值得商榷,不過仍有更多證據能夠顯示,運動員認為按摩能夠恢復疲勞有正面的影響。
  
  研究人員指出,按摩在心理層面的效果,需更進一步研究及發展目前的研究為改變處理時間,適合不同期間及運動種類,及將所有可能列入考慮因素。

Post-Exercise Massage Has Ques

By Yael Waknine
Medscape Medical News

Aug. 19, 2004 — Post-exercise massage increases blood flow to skin but not to the femoral artery, potentially diverting blood flow away from recovering muscles, according to the results of a trial published in Medicine & Science in Sports & Exercise.

"During athletic events the ability to recover from the effects of exercise is vital and postevent massage is often applied to athletes in the belief that it will overcome fatigue and aid in muscle recovery, and it has been postulated that various types of massage may enhance muscle blood flow," writes Tessa Hinds, B.App.Sci (physiotherapy), MSc, from the Centre for Clinical and Biophysical Research Into Human Movement at Manchester Metropolitan University in Alsager, U.K.

To determine the effect of massage on factors associated with the recovery process, investigators measured femoral artery blood flow (FABF), skin blood flow (SKBF), skin and muscle temperatures (SKT, MT), and blood lactate concentrations (BLa) after dynamic exercise and massage/rest in 13 healthy male subjects aged 21.0 ± 1.4 years.

After three 2-minute periods of concentric quadriceps exercise, subjects were given two 6-minute sessions of deep effleurage and pétrissage massage or allowed to rest (control). Each subject acted as their own control in sessions at least four days apart. Measurements were taken at baseline, immediately after exercise, and at the midpoint and end of massage/rest periods.

Massage to the quadriceps did not result in significant increases in mean FABF compared with control subjects at the end of testing (760 ± 256 mL/minute vs. 733 ± 161 mL/minute; P > .05). Massage also did not result in significant changes in MT, blood lactate concentrations, heart rate, or blood pressure compared with control subjects (P > .05).

Massage to the quadriceps did result in significant increases in mean SKBF (150 ± 49 arbitrary units [au] vs. 6 ± 4 au; P < .05) and mean SKT (32.2 ± 0.9 º C vs. 31.1 ± 1.3 º C; P < .05) compared with control subjects at the end of testing.

"It can be speculated that without an increase in FABF into the massaged leg, an increase in SKBF may be diverting blood flow away from deeper tissues such as muscle," the authors write. "However, MT and BLa data in this cohort would suggest a limited metabolic and/or thermoregulatory impact of any muscle blood flow diversion."

The authors suggest that although the positive physiological effects of massage may be questionable, there may be more evidence that massage has positive effects on athletes' perception of recovery from exercise.

"Further research into the effect of massage on psychological states, as well as developing from the current research with alterations in treatment time and adaptations to either the duration or type of exercise, are all possible considerations for future studies," the authors conclude.

This study was funded in part by a grant from the U.K. Football Association.

Med Sci Sport Exerc. 2004;36:1308-1313

Reviewed by Gary D. Vogin, MD

    
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