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Kitano M, Nakamoto M, Kawanishi K, Hara M, Kudo S. Analyzing muscle thickness changes in lateral abdominal muscles while exercising using virtual reality. J Phys Ther Sci 2024; 36:372-377. [PMID: 38952461 PMCID: PMC11214813 DOI: 10.1589/jpts.36.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/04/2024] [Indexed: 07/03/2024] Open
Abstract
[Purpose] Virtual reality (VR) rehabilitation has become popular in the medical field. VR-guided exercises (VR-ge) have demonstrated positive effects on gait and trunk control. Trunk muscle activation, particularly that of the transversus abdominis (TrA), is responsible for these improvements. However, the difference in muscle activation between VR and real space remains unclear. Therefore, this study aimed to clarify the differences in trunk muscle activation during exercise therapy performed in VR and real space. [Participants and Methods] A total of 22 healthy male volunteers were divided into two equal groups: VR-ge and Control exercise (C-e) groups. Both groups performed reaching exercises in a seated position. Ultrasound imaging was used to measure the thicknesses of the right external oblique, internal oblique, and TrA muscles, both at rest and during the reaching exercises performed in six different directions. [Results] No significant differences were observed in TrA muscle thickness changes between the groups before the intervention. However, after the intervention, the VR-ge group showed significantly greater TrA muscle thickness changes during reaching compared to that of the C-e group. [Conclusion] VR-ge increased TrA activation during reaching compared to exercising in real space.
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Affiliation(s)
- Masashi Kitano
- Graduate School of Health Science, Morinomiya University of
Medical Science, Japan
- mediVR, Inc., Japan
| | - Masami Nakamoto
- Inclusive Medical Science Research Institute, Morinomiya
University of Medical Sciences: 1-26-16 Nankokita, Suminoe-ku, Osaka-shi, Osaka 559-0034,
Japan
- Department of Physical Therapy, Morinomiya University of
Medical Sciences, Japan
| | - Kengo Kawanishi
- Inclusive Medical Science Research Institute, Morinomiya
University of Medical Sciences: 1-26-16 Nankokita, Suminoe-ku, Osaka-shi, Osaka 559-0034,
Japan
- Department of Physical Therapy, Morinomiya University of
Medical Sciences, Japan
| | - Masahiko Hara
- Inclusive Medical Science Research Institute, Morinomiya
University of Medical Sciences: 1-26-16 Nankokita, Suminoe-ku, Osaka-shi, Osaka 559-0034,
Japan
- mediVR, Inc., Japan
| | - Shintarou Kudo
- Graduate School of Health Science, Morinomiya University of
Medical Science, Japan
- Inclusive Medical Science Research Institute, Morinomiya
University of Medical Sciences: 1-26-16 Nankokita, Suminoe-ku, Osaka-shi, Osaka 559-0034,
Japan
- Department of Physical Therapy, Morinomiya University of
Medical Sciences, Japan
- AR-Ex Medical Research Center, Japan
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