Langberg H, Bülow J, Kjaer M
Department of Rheumatology H, Bispebjerg Hospital, Copenhagen, Denmark.
Acta Physiol Scand. 1998 Jun;163(2):149-53. doi: 10.1046/j.1365-201X.1998.00361.x.
This study evaluated blood flow in the peritendinous space of the human Achilles tendon during rest and 40-min dynamical contraction of m. triceps surae. In 10 healthy volunteers 133Xe was injected in to the peritendinous space just ventrally to the Achilles tendon 2 and 5 cm proximal to the calcaneal insertion of the tendon, respectively. Blood flow 5 cm proximal to the Achilles tendon insertion was found to increase 4-fold from rest to exercise whereas the exercise induced increase in blood flow was less pronounced, only 2.5-fold, when measured 2 cm proximal to the Achilles tendon insertion. Lymph drainage from the area was found to be negligible both during rest and exercise. We conclude that dynamical calf muscle contractions result in increased peritendinous blood flow at the Achilles tendon in humans.
本研究评估了在静息状态以及小腿三头肌进行40分钟动态收缩时，人类跟腱周围间隙的血流情况。在10名健康志愿者中，分别于跟腱跟骨附着点近端2厘米和5厘米处，在跟腱腹侧的腱周间隙注入133Xe。结果发现，跟腱附着点近端5厘米处的血流从静息状态到运动时增加了4倍；而在跟腱附着点近端2厘米处测量时，运动引起的血流增加则不太明显，仅为2.5倍。研究还发现，该区域在静息和运动期间的淋巴引流均可忽略不计。我们得出结论，动态小腿肌肉收缩会导致人类跟腱周围血流增加。
