Kalin P J, Hirsch B E
U.S.A.F. Eglin Regional Hospital, Eglin Air Force Base, Florida 32542.
J Anat. 1987 Jun;152:83-91.
The dorsal and plantar interosseous muscles of the foot arise, not only from the metatarsal bones, but also from ligamentous tissue proximal to the tarsometatarsal joints. The interossei also take origin from the fascia of adjacent muscles, and the first dorsal interosseous muscle usually arises in part from a slip of the peroneus longus tendon. A means may thus exist to ensure that the interossei contract in a coordinated manner. Their positions and time of contraction during the gait cycle imply a possible role as stabilisers of the forefoot, rendering the tarsometatarsal joints rigid when weight is carried on the ball of the foot.
足部的背侧和足底骨间肌不仅起自跖骨,还起自跗跖关节近端的韧带组织。骨间肌也起自相邻肌肉的筋膜,并且第一背侧骨间肌通常部分起自腓骨长肌腱的一个腱束。因此可能存在一种机制来确保骨间肌以协调的方式收缩。它们在步态周期中的位置和收缩时间意味着其可能作为前足稳定器发挥作用,当足部负重于跖球部时使跗跖关节变得僵硬。