指尖血乳酸测量作为肌肉疲劳恢复指标的验证。

Satomi Okano, Haruka Miura, Mizuki Sakamoto, Hitomi Nishizawa
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引用次数: 0

摘要

[目的]评价单侧上肢运动后血乳酸水平测量点的有效性。[参与者与方法]对40名健康青年男性(平均年龄20.9±2.5岁)进行双手指尖血乳酸水平测定。测量分别在单侧上肢运动之前、之后和90秒间隔进行,包括掌屈和非优势手背屈。通过最大自主收缩试验确定运动负荷。【结果】各测量时间点手指间平均血乳酸水平无显著差异。运动肢体的血乳酸峰值出现时间比非运动肢体早约90 s。【结论】本研究发现,单侧上肢运动时,用指尖测量运动肢体与非运动肢体的血乳酸水平无显著差异。因此,任何一个指尖都可能是合适的测量部位。然而,由于非运动肢体的乳酸峰值水平延迟了90 s左右,因此应考虑非运动肢体肌肉疲劳峰值评估的时间。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Verification of fingertip blood lactate measurement as an index of muscle fatigue recovery.

Verification of fingertip blood lactate measurement as an index of muscle fatigue recovery.

Verification of fingertip blood lactate measurement as an index of muscle fatigue recovery.

Verification of fingertip blood lactate measurement as an index of muscle fatigue recovery.

[Purpose] To evaluate the validity of measurement sites for assessing blood lactic acid levels following unilateral upper-limb exercises. [Participants and Methods] Blood lactic acid levels were measured at the fingertips of both hands in 40 healthy young men (mean age 20.9 ± 2.5 years). Measurements were taken before, immediately after, and at 90-s intervals following unilateral upper-limb exercises involving palmar flexion and dorsiflexion of the non-dominant hand. Exercise load was determined through maximum voluntary contraction testing. [Results] No significant differences were found in the average blood lactic acid levels between the fingers at any measurement time point. The peak blood lactic acid level occurred approximately 90 s earlier in the motor limb than in the non-motor limb. [Conclusion] This study found no significant difference in blood lactic acid levels between the motor and non-motor limbs when using fingertip measurements during unilateral upper-limb exercises. Therefore, either fingertip may be a suitable measurement site. However, because the peak lactic acid level in the non-motor limb was delayed by around 90 s, the timing of peak muscle fatigue evaluation in the non-motor limb should be considered.

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