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Improvements in force variability and structure from vision- to memory-guided submaximal isometric knee extension in subacute stroke.
Chow JW, Stokic DS. Chow JW, et al. Among authors: stokic ds. J Appl Physiol (1985). 2018 Mar 1;124(3):592-603. doi: 10.1152/japplphysiol.00717.2017. Epub 2017 Nov 2. J Appl Physiol (1985). 2018. PMID: 29097632 Free article.
Subjects performed a unilateral isometric knee extension at 10, 30, and 50% of peak torque [maximum voluntary contraction (MVC)] for 10 s (3 trials each). Visual feedback was removed at the 5-s mark in the first two trials (feedback withdrawal), and 30 s afte …
Subjects performed a unilateral isometric knee extension at 10, 30, and 50% of peak torque [maximum voluntary contraction (MVC)] for 10 s
Impaired force steadiness is associated with changes in force frequency composition in subacute stroke.
Chow JW, Stokic DS. Chow JW, et al. Among authors: stokic ds. Neuroscience. 2013 Jul 9;242:69-77. doi: 10.1016/j.neuroscience.2013.03.040. Epub 2013 Mar 30. Neuroscience. 2013. PMID: 23548515
We tested the hypothesis that impaired force steadiness early after stroke is associated with changes in frequency composition of the force signal during constant-force task. ...Fugl-Meyer lower extremity motor and sensory scores were not related to th …
We tested the hypothesis that impaired force steadiness early after stroke is associated with changes in frequency composition …
Variability, frequency composition, and complexity of submaximal isometric knee extension force from subacute to chronic stroke.
Chow JW, Stokic DS. Chow JW, et al. Among authors: stokic ds. Neuroscience. 2014 Jul 25;273:189-98. doi: 10.1016/j.neuroscience.2014.05.018. Epub 2014 May 16. Neuroscience. 2014. PMID: 24840274
The overall results suggest the improvement in force variability from subacute to chronic stroke but without normalization in the frequency composition and complexity of the force signal. Thus, disordered structure of the force signal remains a marker …
The overall results suggest the improvement in force variability from subacute to chronic stroke but without normalization in …
Variability, frequency composition, and temporal regularity of submaximal isometric elbow flexion force in subacute stroke.
Chow JW, Stokic DS. Chow JW, et al. Among authors: stokic ds. Exp Brain Res. 2016 Nov;234(11):3145-3155. doi: 10.1007/s00221-016-4712-7. Epub 2016 Jul 1. Exp Brain Res. 2016. PMID: 27370944
We compared variability, frequency composition, and temporal regularity of submaximal isometric elbow flexion force at 10, 20, 35, and 50 % of peak torque between 34 stroke subjects (5-48 days post-onset, both arms) and 24 age-matched controls (dominant arm), and re …
We compared variability, frequency composition, and temporal regularity of submaximal isometric elbow flexion force at 10, 20, 35, an …
Force control of quadriceps muscle is bilaterally impaired in subacute stroke.
Chow JW, Stokic DS. Chow JW, et al. Among authors: stokic ds. J Appl Physiol (1985). 2011 Nov;111(5):1290-5. doi: 10.1152/japplphysiol.00462.2011. Epub 2011 Sep 1. J Appl Physiol (1985). 2011. PMID: 21885803 Free article.
We tested the hypothesis that force variability and error during maintenance of submaximal isometric knee extension are greater in subacute stroke patients than in controls and are related to motor impairments. ...After peak knee extension torque [maximum voluntary …
We tested the hypothesis that force variability and error during maintenance of submaximal isometric knee extension are greater in su …