Biomechanics Laboratory, Division of Orthopedic Research, Department of Orthopedic Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States.
J Biomech. 2011 Apr 29;44(7):1414-6. doi: 10.1016/j.jbiomech.2011.01.011. Epub 2011 Feb 1.
The purpose of this study was to investigate the effects of temperature, velocity and load on the gliding resistance (GR) of flexor digitorum profundus (FDP) tendons in a human cadaver model. A total of 40 FDP tendons from the index through small digits of ten human cadavers were tested to assess the effect of temperature (4, 23 or 36 °C), velocity (2, 4, 6, 8, 10 or 12 mm/s) and load (250, 500, 750, 1000, 1250 and 1500 g) on GR. The mean GR at 4 °C was significantly higher than the mean GR at 36 °C (p<0.0066). There was no significant difference in the mean GR of the tested velocities. The mean GR was proportional to load, with each successive load having significantly higher GR than the loads before it (all p<0.001). There was no significant difference in the mean GR by digit. In this in vitro model, we have demonstrated that tendon gliding resistance is proportional to load, independent of velocity and somewhat affected by temperature. We conclude that it is important to specify these conditions when reporting gliding resistance, especially load and temperature.
本研究旨在探讨温度、速度和负荷对人体尸体模型中屈指深肌腱（FDP）滑行阻力（GR）的影响。共测试了来自十个人体尸体的索引到小指的 40 根 FDP 肌腱，以评估温度（4、23 或 36°C）、速度（2、4、6、8、10 或 12mm/s）和负荷（250、500、750、1000、1250 和 1500g）对 GR 的影响。4°C 时的平均 GR 明显高于 36°C 时的平均 GR（p<0.0066）。测试速度的平均 GR 之间没有显著差异。GR 与负荷成正比，每个连续的负荷都比之前的负荷具有更高的 GR（均 p<0.001）。不同数字的平均 GR 之间没有显著差异。在这个体外模型中，我们已经证明肌腱滑行阻力与负荷成正比，与速度无关，并且受温度的影响较小。我们得出结论，在报告滑行阻力时，特别是在报告负荷和温度时，指定这些条件非常重要。
