Department of Physical Therapy, Speech and Occupational Therapy, School of Medicine, University of Sao Paulo, R. Cipotnea, 51, CEP 05360-160 SP, Brazil.
Muscle Nerve. 2011 Aug;44(2):258-68. doi: 10.1002/mus.22051.
Changes in gait cadence caused by challenging situations in daily life might induce higher demand for strength and propulsion in diabetic neuropathic (DN) subjects.
Forty-six subjects (healthy and DN) walked at two cadences (self-selected and 25% higher). Kinematic and electromyographic data were obtained from lower limbs and compared across the gait cycle.
DN subjects showed a delayed peak in plantarflexor activity along the whole cycle (irrespective of cadence) compared with healthy subjects. However, during the imposed cadence, DN individuals showed reduced ankle range of motion along the entire cycle compared with the self-selected condition and healthy individuals walking at both cadences (P = 0.002).
These findings suggest that when diabetic individuals face a new challenging situation that induces a higher demand for muscle strength and propulsion, the necessary range of motion and neuromuscular control around distal joints are insufficient.
日常生活中挑战性情况引起的步态步频变化可能会导致糖尿病神经病变（DN）患者对力量和推进力的需求增加。
46 名受试者（健康和 DN）以两种步频（自定和高 25%）行走。下肢获得运动学和肌电图数据，并在整个步态周期内进行比较。
与健康受试者相比，DN 受试者整个周期的足底屈肌活动峰值延迟（与步频无关）。然而，在规定的步频下，与自定步频相比，DN 个体在整个周期中踝关节活动范围减小，且健康个体在两种步频下行走时也减小（P = 0.002）。
这些发现表明，当糖尿病患者面临需要更高肌肉力量和推进力的新挑战情况时，远端关节周围的必要活动范围和神经肌肉控制不足。
