Effects of visual-motor illusions with different visual stimuli on the sit-to-stand of people with hemiplegia following stroke: A randomized crossover controlled trial

Junpei Tanabe; Kazu Amimoto; Katsuya Sakai; Motoyoshi Morishita; Shinpei Osaki; Nao Yoshihiro; Tokuei Kataoka

doi:10.1016/j.humov.2022.103021

Effects of visual-motor illusions with different visual stimuli on the sit-to-stand of people with hemiplegia following stroke: A randomized crossover controlled trial

Hum Mov Sci. 2023 Feb:87:103021. doi: 10.1016/j.humov.2022.103021. Epub 2022 Nov 11.

Authors

Junpei Tanabe¹, Kazu Amimoto², Katsuya Sakai³, Motoyoshi Morishita⁴, Shinpei Osaki⁵, Nao Yoshihiro⁶, Tokuei Kataoka⁷

Affiliations

¹ Department of Physical Therapy, Hiroshima Cosmopolitan University, 3-2-1, Otsukahigashi, Asaminami-ku, Hiroshima 731-3166, Japan; Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashi-Ogu, Arakawa-ku, Tokyo 116-8551, Japan. Electronic address: mjsstfive@gmail.com.
² Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashi-Ogu, Arakawa-ku, Tokyo 116-8551, Japan.
³ Department of Physical Therapy, Faculty of Healthcare Sciences, Chiba Prefectural University of Health Sciences, 1-645, Nitona-cho, Chuo-ku, Chiba 260-0801, Japan.
⁴ Department of Physical Therapy, Kibi International University, 8, Iga-machi, Takahashi-shi, Okayama 716-8508, Japan.
⁵ Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashi-Ogu, Arakawa-ku, Tokyo 116-8551, Japan; Department of Rehabilitation, Kansai Electric Power Hospital, 2-1-7, Fukushima, Fukushima-ku, Osaka-shi, Osaka 553-0003, Japan.
⁶ Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashi-Ogu, Arakawa-ku, Tokyo 116-8551, Japan; Department of Occupational Therapy, Faculty of Health Sciences, Kansai University of Health Sciences, 2-11-1, Wakaba, Kumatori-machi, Sennan-gun, Osaka 590-0482, Japan.
⁷ Department of Rehabilitation, Kurashiki Rehabilitation Hospital, 21, Sasaoki, Kurashiki-shi, Okayama 710-0834, Japan.

PMID: 36375318
DOI: 10.1016/j.humov.2022.103021

Abstract

Background: The objective of this study was to determine the effects of different visual stimuli during visual-motor illusion on sit-to-stand in people with hemiplegia following stroke.

Methods: This was a randomized crossover controlled trial. Twenty people with hemiplegia following stroke were randomly divided into groups. The video images used for visual-motor illusion were ankle dorsiflexion without resistance (standard visual-motor illusion [standard illusion]) and maximum effort dorsiflexion with resistance (power visual-motor illusion [power illusion]). People with hemiplegia following stroke underwent both illusion interventions with a 1-week washout period in between; group A started with the standard illusion intervention and group B started with the power illusion intervention. Outcomes included the sit-to-stand duration, maximum weight-bearing value, trunk movement during sit-to-stand, ankle joint movement during sit-to-stand, and active ankle dorsiflexion movement on the paralyzed side.

Results: The angular velocity of the trunk and ankle joints increased significantly during sit-to-stand, and sit-to-stand duration decreased significantly in response only to power illusion. In addition, the change in angular velocity of active ankle dorsiflexion was significantly greater in response to power illusion than was the change in response to standard illusion.

Conclusion: Power illusion induces a greater improvement in paralyzed ankle dorsiflexion function than standard illusion, resulting in shorter sit-to-stand duration.

Keywords: Maximum effort; Motor imagery; Sense of agency; Sit-to-stand; Visual-motor illusion.

Publication types

Randomized Controlled Trial

MeSH terms

Hemiplegia
Humans
Illusions*
Movement / physiology
Posture / physiology
Stroke*