| Records |
| Author |
Banina, M.C.; Molad, R.; Solomon, J.S.; Berman, S.; Soroker, N.; Frenkel-Toledo, S.; Liebermann, D.G.; Levin, M.F. |
| Title |
Exercise intensity of the upper limb can be enhanced using a virtual rehabilitation system |
Type |
Journal Article |
| Year |
2020 |
Publication  |
Disability and Rehabilitation. Assistive Technology |
Abbreviated Journal |
Disabil Rehabil Assist Technol |
| Volume |
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Issue |
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Pages |
1-7 |
| Keywords |
Stroke; difficulty; exercise therapy; intensity; personalized exercise; upper limb; virtual reality |
| Abstract |
Purpose: Motor recovery of the upper limb (UL) is related to exercise intensity, defined as movement repetitions divided by minutes in active therapy, and task difficulty. However, the degree to which UL training in virtual reality (VR) applications deliver intense and challenging exercise and whether these factors are considered in different centres for people with different sensorimotor impairment levels is not evidenced. We determined if (1) a VR programme can deliver high UL exercise intensity in people with sub-acute stroke across different environments and (2) exercise intensity and difficulty differed among patients with different levels of UL sensorimotor impairment.Methods: Participants with sub-acute stroke (<6 months) with Fugl-Meyer scores ranging from 14 to 57, completed 10 approximately 50-min UL training sessions using three unilateral and one bilateral VR activity over 2 weeks in centres located in three countries. Training time, number of movement repetitions, and success rates were extracted from game activity logs. Exercise intensity was calculated for each participant, related to UL impairment, and compared between centres.Results: Exercise intensity was high and was progressed similarly in all centres. Participants had most difficulty with bilateral and lateral reaching activities. Exercise intensity was not, while success rate of only one unilateral activity was related to UL severity.Conclusion: The level of intensity attained with this VR exercise programme was higher than that reported in current stroke therapy practice. Although progression through different activity levels was similar between centres, clearer guidelines for exercise progression should be provided by the VR application.Implications for rehabilitationVR rehabilitation systems can be used to deliver intensive exercise programmes.VR rehabilitation systems need to be designed with measurable progressions through difficulty levels. |
| Address |
Center for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Laval, Canada |
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English |
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| ISSN |
1748-3107 |
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| Notes |
PMID:32421460 |
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no |
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106 |
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| Author |
Mimouni-Bloch, A.; Shaklai, S.; Levin, M.; Ingber, M.; Karolitsky, T.; Grunbaum, S.; Friedman, J. |
| Title |
Developmental and acquired brain injury have opposite effects on finger coordination in children |
Type |
Journal Article |
| Year |
2023 |
Publication |
Frontiers in Human Neuroscience |
Abbreviated Journal |
Front. Hum. Neurosci. |
| Volume |
17 |
Issue |
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Pages |
1083304 |
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1662-5161 |
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119 |
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| Author |
Geller, N.; Moringen, A.; Friedman, J. |
| Title |
Learning juggling by gradually increasing difficulty vs. learning the complete skill results in different learning patterns |
Type |
Journal Article |
| Year |
2023 |
Publication |
Frontiers in Psychology |
Abbreviated Journal |
Front Psychol |
| Volume |
14 |
Issue |
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Pages |
1284053 |
| Keywords |
coordination; difficulty; juggling; learning strategies; motor learning |
| Abstract |
Motor learning is central to sports, medicine, and other health professions as it entails learning through practice. To achieve proficiency in a complex motor task, many hours of practice are required. Therefore, finding ways to speed up the learning process is important. This study examines the impact of different training approaches on learning three-ball cascade juggling. Participants were assigned to one of two groups: practicing by gradually increasing difficulty and elements of the juggling movement (“learning in parts”) or training on the complete skill from the start (“all-at-once”). Results revealed that although the all-at-once group in the early stages of learning showed greater improvement in performance, the “learning in parts” group managed to catch up, even over a relatively short period of time. The lack of difference in performance between the groups at the end of the training session suggests that the choice of training regime (between all-at-once and learning in parts), at least in the short term, can be selected based on other factors such as the learner's preference, practical considerations, and cognitive style. |
| Address |
Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel |
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English |
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1664-1078 |
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| Notes |
PMID:38022928; PMCID:PMC10679398 |
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no |
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120 |
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| Author |
Bezalel, G.; Nachoum Arad, G.; Plotnik, M.; Friedman, J. |
| Title |
Voluntary step execution in patients with knee osteoarthritis: Symptomatic vs. non-symptomatic legs |
Type |
Journal Article |
| Year |
2021 |
Publication |
Gait & Posture |
Abbreviated Journal |
Gait Posture |
| Volume |
83 |
Issue |
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Pages |
60-66 |
| Keywords |
Accidental falls; Gait; Knee; Osteoarthritis; Voluntary step |
| Abstract |
BACKGROUND: Individuals with osteoarthritis fall at a greater rate than the general population, likely as a result of weakness, pain, movement limitations, and a decline in balance. Due to the high prevalence of osteoarthritis in the population, understanding the mechanisms leading to greater fall risk is an important issue to better understand. RESEARCH QUESTION: What is the influence of unilateral knee osteoarthritis on the characteristics of performing a voluntary step (i.e., similar to that performed to avoid a fall after a perturbation), compared to healthy age-matched controls? METHODS: Case-control study performed in a Health maintenance organization physical therapy clinic. The research group consisted of a referred sample of 21 patients with unilateral knee osteoarthritis. The control group consisted of 22 age-matched healthy individuals. All participants were over 65 years of age. Participants were excluded if they had a surgical procedure to back or lower limb within one year before testing, oncological or neurological disease or a deficit in tactile sense. Movements were performed with and without dual tasking. MEASUREMENTS: Duration of the initiation phase (cue to step initiation), preparatory phase (step initiation to foot off) and swing phase (foot off to foot contact). RESULTS: In the preparatory phase and swing phase, the osteoarthritis group moved more slowly than the control group, and these differences were larger for forward compared to backward movements. Dual-tasking slowed responses in the pre-movement initiation stage across groups. SIGNIFICANCE: The differences in basic parameters, and the slower movements in the osteoarthritis group, are consistent with known features of osteoarthritis, being a disease commonly regarded as primarily “mechanical”, and are likely to increase fall risk. These response deficits suggest we should take advantage of advanced rehabilitation techniques, including cognitive loading, to help prevent falls in older adults with osteoarthritis. |
| Address |
Dept. Physical Therapy, Stanley Steyer School of Health Professions, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. Electronic address: jason@tau.ac.il |
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0966-6362 |
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| Notes |
PMID:33080457 |
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no |
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107 |
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| Author |
Cantergi, D.; Awasthi, B.; Friedman, J. |
| Title |
Moving objects by imagination? Amount of finger movement and pendulum length determine success in the Chevreul pendulum illusion |
Type |
Journal Article |
| Year |
2021 |
Publication |
Human Movement Science |
Abbreviated Journal |
Human Movement Science |
| Volume |
80 |
Issue |
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Pages |
102879 |
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0167-9457 |
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no |
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111 |
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