Bilateral deficit in plantar flexion : relation to knee joint position, muscle activation, and reflex excitability

Six male subjects made maximal isometric plantar flexions unilaterally (UL) and bilaterally (BL), with the knee joint angle positioned at 90 degrees and 0 degrees (full extension) and the ankle joint kept at 90 degrees. Plantar flexion torque and electromyogram (EMG) of the lateral gastrocnemius (LG...

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Bibliographic Details
Published in:European journal of applied physiology 1998-02, Vol.77 (3), p.212-216
Main Authors: KAWAKAMI, Y, SALE, D. G, MACDOUGALL, J. D, MOROZ, J. S
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Biomechanical Phenomena
Electromyography
Fundamental and applied biological sciences. Psychology
Humans
Knee Joint
Male
Muscle Contraction
Muscle, Skeletal - physiology
Posture
Reflex - physiology
Space life sciences
Striated muscle. Tendons
Torque
Vertebrates: osteoarticular system, musculoskeletal system
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Summary:Six male subjects made maximal isometric plantar flexions unilaterally (UL) and bilaterally (BL), with the knee joint angle positioned at 90 degrees and 0 degrees (full extension) and the ankle joint kept at 90 degrees. Plantar flexion torque and electromyogram (EMG) of the lateral gastrocnemius (LG) and the soleus (Sol) muscles were recorded. There was a deficit in torque in BL compared to UL (P
ISSN:0301-5548
1439-6319
1432-1025
1439-6327
DOI:10.1007/s004210050324