INTRAMUSCULAR PRESSURE, TORQUE AND SWELLING FOR THE EXERCISE-INDUCED SORE VASTUS LATERALIS MUSCLE
INTRAMUSCULAR PRESSURE, TORQUE AND SWELLING FOR THE EXERCISE-INDUCED SORE VASTUS LATERALIS MUSCLE
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DOI：
10.1111/j.1748-1716.1994.tb09806.x
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发表时间：
1994-11-01
期刊：
影响因子：
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通讯作者：
FRIDEN, J
中科院分区：
文献类型：
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作者：
CRENSHAW, AG;THORNELL, LE;FRIDEN, J
本研究探讨了与股外侧肌迟发性肌肉酸痛(DOMS)相关的肌内液体压(IMP)、扭矩和肿胀的变化。对8名男性受试者，在静息状态下，通过导尿法测量未伸展(0度，完全伸展)和伸展(屈膝90度)肌肉的IMP，然后在重复偏心活动前和(后)2d测定最大收缩时的IMP和膝关节伸展扭矩。股外侧肌的DOMS与静息时IMP的显著升高相关，如术前(0度：5.4 mm Hg，90度：80 mm Hg)和术后(0度：8.4 mm Hg，90度：13.2 mm Hg)比较(P=0.02)。当肌肉拉伸时，疼痛症状加重，并伴随着90度对0度的显著升高(P=0.01)。在最大收缩期间，峰值扭矩比前下降了15%，峰值IMP下降了26%；然而，在这个动作中，DOMS症状最严重。股外侧肌痛的活组织检查显示，与对侧对照相比，所有纤维类型的纤维面积都显著增大(P<；0.01)；然而，细胞外体积百分比的比较没有发现差异。这项研究表明，股外侧肌的DOMS与广泛的细胞内肿胀和IMP升高有关。与以前的研究一致，纤维肿胀可能是重复的偏心活动的常见亚型；IMP测量在静息和其他肌肉的各种动作时检测这种肿胀的能力可能取决于隔室顺应性。
This study investigated changes in intramuscular fluid pressure (IMP), torque and swelling related to delayed onset muscle soreness (DOMS) of the vastus lateralis muscle. IMP was measured via catheterization in the unstretched (0 degrees, full extension) and stretched (90 degrees of knee flexion) muscle at rest; then IMP and knee extension torque were determined during maximal contractions pre and 2d after (post) repetitive eccentric activity in one leg for eight male subjects. DOMS of the vastus lateralis muscle was associated with a significant elevation in IMP at rest as indicated by pre (0 degrees:5.4 mmHg, 90 degrees:80 mmHg) and post (0 degrees: 8.4 mmHg, 90 degrees:13.2 mmHg) comparisons (P = 0.02). Soreness symptoms were aggravated when the muscle was stretched and this was accompanied by a significantly higher post IMP at 90 degrees vs. 0 degrees (P = 0.01). During maximal contractions, peak torque declined by 15% relative to pre and peak IMP declined by 26%; DOMS symptoms, however, were most severe during this manoeuvre. Biopsies from the sore vastus lateralis muscle revealed significantly larger fibre areas for all fibre types as compared with contralateral controls (P < 0.01); however, no differences were detected for extracellular volume percent comparisons. This study shows that DOMS of the vastus lateralis muscle is associated with extensive intracellular swelling and with elevated IMP. In line with previous studies, fibre swelling may be a common subsequence to repetitive eccentric activity; the ability of IMP measurements to detect this swelling at rest and during various manoeuvres for other muscles may depend on compartmental compliance.