OBJECTIVE: To assess the feasibility of a new stroke rehabilitation therapy for the hemiparetic hand. DESIGN: Case series. Pre- and postintervention assessment with 1- and 3-month follow-ups. SETTING: Clinical research laboratory of a large public hospital. PARTICIPANTS: Three subjects with chronic (>6mo postcerebrovascular accident) upper-extremity hemiplegia. INTERVENTION: Subjects used an electric stimulator to cause the paretic hand extensor muscles to contract and thereby open the hand. Subjects controlled the intensity of the stimulation, and thus the degree of hand opening, by volitionally opening the unimpaired contralateral hand, which was detected by an instrumented glove. For 6 weeks, subjects used the stimulator to perform active repetitive hand-opening exercises 2 hours daily at home and functional tasks 1.5 hours twice a week in the laboratory. MAIN OUTCOME MEASURES: Maximum voluntary finger extension, maximum voluntary isometric finger-extension moment, finger-movement control, and box and block test (BBT) score at pre- and posttreatment and at 1 month and 3 months posttreatment. RESULTS: Maximum voluntary finger extension increased from baseline to end of treatment and from the end of treatment to 1-month follow-up in 2 subjects. Maximum voluntary isometric finger-extension moment, finger-movement control, and BBT score increased from baseline to the end of treatment and from the end of treatment to 1-month follow-up in all 3 subjects. The improvements generally declined at 3 months. CONCLUSIONS: The results suggest a positive effect on motor impairment, meriting further investigation of the intervention.
OBJECTIVE: To assess the feasibility of a new stroke rehabilitation therapy for the hemiparetic hand. DESIGN: Case series. Pre- and postintervention assessment with 1- and 3-month follow-ups. SETTING: Clinical research laboratory of a large public hospital. PARTICIPANTS: Three subjects with chronic (>6mo postcerebrovascular accident) upper-extremity hemiplegia. INTERVENTION: Subjects used an electric stimulator to cause the paretic hand extensor muscles to contract and thereby open the hand. Subjects controlled the intensity of the stimulation, and thus the degree of hand opening, by volitionally opening the unimpaired contralateral hand, which was detected by an instrumented glove. For 6 weeks, subjects used the stimulator to perform active repetitive hand-opening exercises 2 hours daily at home and functional tasks 1.5 hours twice a week in the laboratory. MAIN OUTCOME MEASURES: Maximum voluntary finger extension, maximum voluntary isometric finger-extension moment, finger-movement control, and box and block test (BBT) score at pre- and posttreatment and at 1 month and 3 months posttreatment. RESULTS: Maximum voluntary finger extension increased from baseline to end of treatment and from the end of treatment to 1-month follow-up in 2 subjects. Maximum voluntary isometric finger-extension moment, finger-movement control, and BBT score increased from baseline to the end of treatment and from the end of treatment to 1-month follow-up in all 3 subjects. The improvements generally declined at 3 months. CONCLUSIONS: The results suggest a positive effect on motor impairment, meriting further investigation of the intervention.
Authors: Jayme S Knutson; Mary Y Harley; Terri Z Hisel; Nathaniel S Makowski; John Chae Journal: Am J Phys Med Rehabil Date: 2014-06 Impact factor: 2.159
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Authors: Jayme S Knutson; Kristine Hansen; Jennifer Nagy; Stephanie N Bailey; Douglas D Gunzler; Lynne R Sheffler; John Chae Journal: Am J Phys Med Rehabil Date: 2013-08 Impact factor: 2.159
Authors: Michael J Fu; Anna Curby; Ryan Suder; Benjamin Katholi; Jayme S Knutson Journal: IEEE Trans Neural Syst Rehabil Eng Date: 2020-05-11 Impact factor: 3.802
Authors: Jayme S Knutson; Mary Y Harley; Terri Z Hisel; Nathaniel S Makowski; Michael J Fu; John Chae Journal: Conf Proc IEEE Eng Med Biol Soc Date: 2012
Authors: David A Cunningham; Kelsey A Potter-Baker; Jayme S Knutson; Vishwanath Sankarasubramanian; Andre G Machado; Ela B Plow Journal: Phys Med Rehabil Clin N Am Date: 2015-09-09 Impact factor: 1.784