Brain activity region during kinesthetic illusion induced by visual stimulation of ankle joint

Brain activity region during kinesthetic illusion induced by visual stimulation of ankle joint

Y.G. Yi et al. / Annals of Physical and Rehabilitation Medicine 61S (2018) e309–e433 age 70 (SD18); 54% neurological conditions] were allocated to th...

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Y.G. Yi et al. / Annals of Physical and Rehabilitation Medicine 61S (2018) e309–e433

age 70 (SD18); 54% neurological conditions] were allocated to the intervention group. Intervention: tailored technology prescription according to a protocol matching exercises from eight technologies (commerciallyavailable: Nintendo Wii; Xbox Kinect; activity monitors; smartphone apps; rehabilitation-specific Humac; Fysiogaming; Stepping Tiles; exercise iPad apps) to seven mobility limitations. Outcome measures: intervention dose, technologies used, mobility limitations addressed, Physical Activity Enjoyment (PACES; 18–126) and System Usability Scales (SUS; 0–100). Results Participants received on average 11 (SD11) sessions of 43 (SD11) minutes duration. Each participant used on average 4 (SD1) technologies to address a mean of 4 (SD1) different mobility limitations. Intervention focused largely on limitations related to standing (80%) and stepping (79%), as well as on physical activity levels (90%). The Humac was the most frequent firstintroduced technology (35% of participants). Activity monitors (80%) and iPad apps (71%) were most prescribed, and commerciallyavailable exergames and smartphone apps used least. At 3 weeks, participants perceived technology use as enjoyable [mean PACES 95.4 (SD23.2)] and rated usability above average [mean SUS 72.2 (SD18.8)]. Enjoyment and usability were positively related to previous technology use (P < 0.01) and younger age (P ≤ 0.03). Usability was greater in those with neurological conditions (P < 0.05). Previous technology use remained associated with usability after adjustment for other factors (P = 0.003). Conclusion In inpatient rehabilitation, tailored prescription of technologies can address a range of mobility limitations and was well accepted. Previous technology use enhances uptake. Keywords Exercise dose; Inpatient rehabilitation; Affordable technologies Disclosure of interest The author declares that he has no competing interest. https://doi.org/10.1016/j.rehab.2018.05.818 ISPR8-1425

Brain activity region during kinesthetic illusion induced by visual stimulation of ankle joint

K. Sakai ∗ , Y. Ikeda , K. Amimoto , K. Goto , K. Morikawa , K. Kumai Tokyo metropolitan university, Graduate school of human health sciences, Arakawa-ku, Japan ∗ Corresponding author. E-mail address: [email protected] (K. Sakai) Introduction/Background Kinesthetic illusion induced by visual stimulation (KiNvis) is a novel method that produces kinesthetic perception through observation of a person’s physical exercise on a computer screen. KiNvis enhances lower limb corticomotor excitability in healthy subjects. However, it is not clear which regions of the brain are activated during KiNvis. The purpose of this study was to investigate the regions of brain activity during KiNvis in the ankle dorsiflexion movement. Material and method We examined the left lower limbs of 17 healthy subjects (mean age, 24.1 ± 5.3 years; 12 males and 5 females). We randomly applied two conditions to the left lower limbs. Condition 1 (observation condition) was to observe the image of ankle. Condition 2 (KiNvis condition) was to observe the video and induced the KiNvis. The video of ankle dorsiflexion movement on the right side filmed in first-person perspective was flipped horizontally and then shown on a computer screen. A computer was placed over the left side foot. Subjects observed the video that recorded the ankle dorsiflexion movement to induce KiNvis. The two conditions were measured using a rest-task-rest block design. Cerebral blood flow during rest and task (in the two conditions) were recorded using functional near infrared spectroscopy (fNIRS). Effective size of the two conditions were calculated and compared.

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During the KiNvis condition, A visual analogue scale (VAS) was measured to evaluate the degree of kinesthetic illusion. Results VAS was found to be 66.9 ± 12.5 mm (mean). Cerebral blood flow in the right premotor area was significantly increased during the KiNvis condition compared with that during the observation condition. Conclusion Our results demonstrate that cerebral blood flow in the premotor area increases with KiNvis of the ankle dorsiflexion movement in healthy subjects. Keywords Kinesthetic illusion induced by visual stimulation; fNIRS; Premotor area Disclosure of interest The authors declare that they have no competing interest. https://doi.org/10.1016/j.rehab.2018.05.819 ISPR8-2272

Sensory-motor training improves health-related quality of life and fall efficacy in chronic stroke survivors

T. Zastron ∗ , K. Welman Stellenbosch University, Sport Science, Stellenbosch, South Africa ∗ Corresponding author. E-mail address: [email protected] (T. Zastron) Introduction/Background Stroke survivors struggle with an array of disabilities, which can be divided into physical, social as well as emotional debilities. The primary objective was to assess the influence of an eight-week sensory-motor training program on health-related quality of life and concern for falling in chronic stroke survivors. Material and method This was a double-blind randomized control trial. Chronic stroke participants (≥ 6 months) were divided into two groups namely, sensory-motor training group (n = 12; 68 ± 13 years old) and attention-control group (n = 10; 71 ± 11 years old). Both interventions were executed three times a week for 45-60 minute sessions over an eight-week period. The sensorymotor training consisted out of task-specific balance exercises while manipulating the visual, vestibular and proprioceptive sensory systems. Health-related quality of life was measured with the Short Form Health Survey (SF-36) and concern for falling with the Fall Efficacy Scale International (FES-I). Participants were evaluated pre-intervention and post-intervention. Results A significant group × time interaction was identified for physical functioning (P = 0.005) and FES-I (P = 0.03). Additionally, the experimental group showed a significant improvement in physical (P = 0.01) and social functioning (P = 0.02) subdomains of SF-36 after training. Lastly, the sensory-motor training group perceived their physical and social functioning to be better compared to attention-matched group (P < 0.05). Conclusion The results of this study indicate that balance training under sensory manipulated conditions can improve the perception of physical and social functioning as well as concern for falling in chronic stroke survivors. Keywords Sensory-motor training; Chronic stroke; Quality of life Disclosure of interest The authors declare that they have no competing interest. https://doi.org/10.1016/j.rehab.2018.05.820