膝關節屈伸運動



本研究旨在探討LLLT在老年女性疲勞過程中的作用。 這些發現開啟了臨床窗口，使用LLLT對老年人進行力量訓練計劃時對抗肌肉減少症。
在疲勞方案之前立即在股直肌上遞送活性LLLT（808nm波長，100mW，能量7J）或相同的安慰劑LLLT。 受試者進行疲勞方案，該方案包括在60秒內以相當於75％的1-MR（最大重複）的負荷進行的膝關節屈曲 - 伸展的自發等張收縮。 從占優勢的下肢的股直肌記錄表面肌電圖（SEMG）信號以評估外周易疲勞性。
在活躍的LLLT後，受試者表現出顯著更高的重複次數（p = 0.047）。 在這項研究中，LLLT在增加膝關節屈伸運動期間的平均重複次數方面是有效的，儘管結果沒有表現出延遲疲勞。


 the present study aimed to investigate the effects of LLLT during fatigue in
elderly women. Methods … However, these findings open clinical window to the use of LLLT on
elderly people to combat sarcopenia when associated to strength exercise program 
 Active LLLT (808 nm wavelength, 100 mW, energy 7 J) or an identical placebo LLLT was delivered on the rectus femoris muscle immediately before a fatigue protocol. Subjects performed a fatigue protocol which consisted of voluntary isotonic contractions of knee flexion–extension performed with a load corresponding to 75 % of 1-MR (Maximum Repetition) during 60 s. Surface electromyography (SEMG) signals were recorded from rectus femoris muscle of dominant lower limb to evaluate peripheral fatigability.
Toma, Renata Luri, et al. "Effect of 808 nm low-level laser therapy in exercise-induced skeletal muscle fatigue in elderly women." Lasers in medical science 28.5 (2013): 1375-1382.

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