Grace J Kim1, Jim Hinojosa2, Ashwini K Rao3, Mitchell Batavia4, Michael W O'Dell5. 1. Department of Rehabilitation Medicine, Weill Cornell Medical Center, NewYork Presbyterian Hospital, New York, NY. Electronic address: gjk207@nyu.edu. 2. Department of Occupational Therapy, Steinhardt School Culture, Education, and Human Development, New York University, New York, NY. 3. Department of Physical Therapy, Rehabilitation & Regenerative Medicine, G.H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, NY. 4. Department of Physical Therapy, Steinhardt School Culture, Education, and Human Development, New York University, New York, NY. 5. Clinical Rehabilitation Medicine, Weill Cornell Medicine, New York, NY.
Abstract
OBJECTIVE: To compare the long-term effects of external focus (EF) and internal focus (IF) of attention after 4 weeks of arm training. DESIGN: Randomized, repeated-measures, mixed analysis of variance. SETTING: Outpatient clinic. PARTICIPANTS: Individuals with stroke and moderate-to-severe arm impairment living in the community (N=33; withdrawals: n=3). INTERVENTIONS: Four-week arm training protocol on a robotic device (12 sessions). MAIN OUTCOME MEASURES: Joint independence, Fugl-Meyer Assessment, and Wolf Motor Function Test measured at baseline, discharge, and 4-week follow-up. RESULTS: There were no between-group effects for attentional focus. Participants in both groups improved significantly on all outcome measures from baseline to discharge and maintained those changes at 4-week follow-up regardless of group assignment (joint independence EF condition: F1.6,45.4=17.74; P<.0005; partial η2=.39; joint independence IF condition: F2,56=18.66; P<.0005; partial η2=.40; Fugl-Meyer Assessment: F2,56=27.83; P<.0005; partial η2=.50; Wolf Motor Function Test: F2,56=14.05; P<.0005; partial η2=.35). CONCLUSIONS: There were no differences in retention of motor skills between EF and IF participants 4 weeks after arm training, suggesting that individuals with moderate-to-severe arm impairment may not experience the advantages of an EF found in healthy individuals. Attentional focus is most likely not an active ingredient for retention of trained motor skills for individuals with moderate-to-severe arm impairment, whereas dosage and intensity of practice appear to be pivotal. Future studies should investigate the long-term effects of attentional focus for individuals with mild arm impairment.
RCT Entities:
OBJECTIVE: To compare the long-term effects of external focus (EF) and internal focus (IF) of attention after 4 weeks of arm training. DESIGN: Randomized, repeated-measures, mixed analysis of variance. SETTING:Outpatient clinic. PARTICIPANTS: Individuals with stroke and moderate-to-severe arm impairment living in the community (N=33; withdrawals: n=3). INTERVENTIONS: Four-week arm training protocol on a robotic device (12 sessions). MAIN OUTCOME MEASURES: Joint independence, Fugl-Meyer Assessment, and Wolf Motor Function Test measured at baseline, discharge, and 4-week follow-up. RESULTS: There were no between-group effects for attentional focus. Participants in both groups improved significantly on all outcome measures from baseline to discharge and maintained those changes at 4-week follow-up regardless of group assignment (joint independence EF condition: F1.6,45.4=17.74; P<.0005; partial η2=.39; joint independence IF condition: F2,56=18.66; P<.0005; partial η2=.40; Fugl-Meyer Assessment: F2,56=27.83; P<.0005; partial η2=.50; Wolf Motor Function Test: F2,56=14.05; P<.0005; partial η2=.35). CONCLUSIONS: There were no differences in retention of motor skills between EF and IF participants 4 weeks after arm training, suggesting that individuals with moderate-to-severe arm impairment may not experience the advantages of an EF found in healthy individuals. Attentional focus is most likely not an active ingredient for retention of trained motor skills for individuals with moderate-to-severe arm impairment, whereas dosage and intensity of practice appear to be pivotal. Future studies should investigate the long-term effects of attentional focus for individuals with mild arm impairment.
Authors: Szu-Ping Lee; Alexander Bonczyk; Maria Katrina Dimapilis; Sarah Partridge; Samantha Ruiz; Lung-Chang Chien; Andrew Sawers Journal: PLoS One Date: 2022-07-07 Impact factor: 3.752