Articles
International Journal of Rehabilitation Research (03425282)48(1)pp. 18-24
We investigated the potential to improve motor learning and performance in people with multiple sclerosis (PwMS) with OPTIMAL theory conditions. OPTIMAL theory predicts that three main factors [i.e. autonomy support (AS), enhanced expectancies (EE), and external focus (EF)] facilitate performance and learning. We examined whether the implementation of all three combined in a consecutive manner during practice would be beneficial for the motor learning and performance in a clinical population facing physical, cognitive, and emotional challenges. Thirty PwMS with mild-to-moderate disability (Expanded Disability Status Scale = 2.0-5.0) were randomly assigned to one of two groups (optimized and control) and practiced a novel motor-cognitive task involving rapid square-stepping to memorized patterns. Following a pretest (no group difference), optimized group participants practiced under each of three factors across practice phase (EE: feedback after good trials; AS: choice of mat color; and EF: external focus to the mat). Control group participants practiced under neutral conditions. The optimized group had significantly shorter movement times than the control group in the practice phase [174.7 (27.4) s vs. 236.8 (35.8) s, P < 0.0001], on the 24-h retention test [69.3 (9.3) s vs. 159.7 (15.5) s, P < 0.0001], and the 24-h transfer test [146.1 (14.9) s vs. 223.1 (38.9) s, P < 0.0001]. Thus, optimized practice combining AS, EF, and EE enhanced motor skill learning. Key factors in the OPTIMAL theory can be used to improve patients' motor learning. Further studies are warranted to extend these proof-of-concept observations for potential clinical applications. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Iranian Journal of Ageing (1735806X)19(3)pp. 438-451
Objectives Most falls in the elderly occur due to physical and cognitive risk factors. This study aims to compare the effect of two types of mind-body exercises, yoga and square-stepping exercise (SSE), on memory, balance, and fear of falling in older women. Methods & Materials A quasi-experimental study was conducted on 20 elderly women with an age range of 60 to 70 years. Participants were selected through purposive sampling and were randomly assigned to yoga and Square-Stepping groups. Both groups did exercise for 12 weeks and participated in a pre-test and post-test. The Wechsler memory test, stork test, berg balance test, and international falls efficacy scale were used to measure memory quotient, static balance, dynamic balance, and fear of falling, respectively. Analysis of variance with repeated measures was conducted to analyze the data Results The mean scores of memory quotient in the two groups after exercises were significantly higher than before exercises (F(1, 18)=32.692, P<0.001, η2=0.645). The mean static balance time in the yoga group was significantly higher than in the SSE group (F(1, 18)=60.755, P<0.001, η2=0.771). Furthermore, the mean dynamic balance score in the SSE group was significantly higher than in the yoga group (F(1, 18)=7.714, P=0.012, η2=0.300). In addition, the mean square of fear of falling in the SSE group was significantly lower than in the yoga group (F(1, 18)=11.777, P=0.003, η2=0.396). Conclusion It seems that square stepping exercises can also be used as a simple exercise program to improve physical and cognitive functions in older women. © 2024 The Author(s);
