Increased intensity and reduced frequency of EMG signals from feline self-reinnervated ankle extensors during walking do not normalize excessive lengthening.
Increased intensity and reduced frequency of EMG signals from feline self-reinnervated ankle extensors during walking do not normalize excessive lengthening.
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步行时猫科动物自我神经支配的踝关节伸肌的肌电图信号强度增加和频率降低并不能使过度伸长正常化。
DOI：
10.1152/jn.00565.2015
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发表时间：
2016
影响因子：
2.5
通讯作者：
Prilutsky,BorisI
中科院分区：
文献类型：
--
作者：
Pantall,Annette;Hodson-Tole,EmmaF;Gregor,RobertJ;Prilutsky,BorisI
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Kinematics of cat level walking recover after elimination of length-dependent sensory feedback from the major ankle extensor muscles induced by self-reinnervation. Little is known, however, about changes in locomotor myoelectric activity of self-reinnervated muscles. We examined the myoelectric activity of self-reinnervated muscles and intact synergists to determine the extent to which patterns of muscle activity change as almost normal walking is restored following muscle self-reinnervation. Nerves to soleus (SO) and lateral gastrocnemius (LG) of six adult cats were surgically transected and repaired. Intramuscular myoelectric signals of SO, LG, medial gastrocnemius (MG), and plantaris (PL), muscle fascicle length of SO and MG, and hindlimb mechanics were recorded during level and slope (±27°) walking before and after (10–12 wk postsurgery) self-reinnervation of LG and SO. Mean myoelectric signal intensity and frequency were determined using wavelet analysis. Following SO and LG self-reinnervation, mean myoelectric signal intensity increased and frequency decreased in most conditions for SO and LG as well as for intact synergist MG (P< 0.05). Greater elongation of SO muscle-tendon unit during downslope and unchanged magnitudes of ankle extensor moment during the stance phase in all walking conditions suggested a functional deficiency of ankle extensors after self-reinnervation. Possible effects of morphological reorganization of motor units of ankle extensors and altered sensory and central inputs on the changes in myoelectric activity of self-reinnervated SO and LG are discussed.
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影响因子：
2.5
作者：
Lee, Sabrina S. M.;Miara, Maria de Boef;Arnold, Allison S.;Biewener, Andrew A.;Wakeling, James M.
通讯作者：
Wakeling, James M.
DOI：
10.1152/ajplegacy.1972.222.6.1435
发表时间：
1972
期刊：
The American journal of physiology
影响因子：
--
作者：
A. Luff;H. Atwood
通讯作者：
H. Atwood
运动对长期增大的运动单位稳定性的影响
影响因子：
3.4
作者：
S. L. Tam;V. Archibald;N. Tyreman;Tessa Gordon
通讯作者：
Tessa Gordon
影响因子：
3.2
作者：
P. Lago;N. Jones
通讯作者：
N. Jones
猫的小腿三头肌重新神经支配的内在特性和反射补偿：运动历史的影响。
DOI：
10.1152/jn.00719.2002
发表时间：
2003
期刊：
Journal of neurophysiology.
影响因子：
--
作者：
Huyghues-Despointes,ClotildeMJI;Cope,TimothyC;Nichols,TRichard
通讯作者：
Nichols,TRichard