PMID- 30327684 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220321 IS - 1756-2856 (Print) IS - 1756-2864 (Electronic) IS - 1756-2856 (Linking) VI - 11 DP - 2018 TI - Effect of the combination of motor imagery and electrical stimulation on upper extremity motor function in patients with chronic stroke: preliminary results. PG - 1756286418804785 LID - 10.1177/1756286418804785 [doi] LID - 1756286418804785 AB - BACKGROUND: The combination of motor imagery (MI) and afferent input with electrical stimulation (ES) enhances the excitability of the corticospinal tract compared with motor imagery alone or electrical stimulation alone. However, its therapeutic effect is unknown in patients with hemiparetic stroke. We performed a preliminary examination of the therapeutic effects of MI + ES on upper extremity (UE) motor function in patients with chronic stroke. METHODS: A total of 10 patients with chronic stroke demonstrating severe hemiparesis participated. The imagined task was extension of the affected finger. Peripheral nerve electrical stimulation was applied to the radial nerve at the spiral groove. MI + ES intervention was conducted for 10 days. UE motor function as assessed with the Fugl-Meyer assessment UE motor score (FMA-UE), the amount of the affected UE use in daily life as assessed with a Motor Activity Log (MAL-AOU), and the degree of hypertonia in flexor muscles as assessed with the Modified Ashworth Scale (MAS) were evaluated before and after intervention. To assess the change in spinal neural circuits, reciprocal inhibition between forearm extensor and flexor muscles with the H reflex conditioning-test paradigm at interstimulus intervals (ISIs) of 0, 20, and 100 ms were measured before and after intervention. RESULTS: UE motor function, the amount of the affected UE use, and muscle hypertonia in flexor muscles were significantly improved after MI + ES intervention (FMA-UE: p < 0.01, MAL-AOU: p < 0.01, MAS: p = 0.02). Neurophysiologically, the intervention induced restoration of reciprocal inhibition from the forearm extensor to the flexor muscles (ISI at 0 ms: p = 0.03, ISI at 20 ms: p = 0.03, ISI at 100 ms: p = 0.01). CONCLUSION: MI + ES intervention was effective for improving UE motor function in patients with severe paralysis. FAU - Okuyama, Kohei AU - Okuyama K AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. FAU - Ogura, Miho AU - Ogura M AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. FAU - Kawakami, Michiyuki AU - Kawakami M AD - Department of Rehabilitation Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan. FAU - Tsujimoto, Kengo AU - Tsujimoto K AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. FAU - Okada, Kohsuke AU - Okada K AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. FAU - Miwa, Kazuma AU - Miwa K AD - Department of Rehabilitation Medicine, Keio University Hospital, Tokyo, Japan. FAU - Takahashi, Yoko AU - Takahashi Y AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. FAU - Abe, Kaoru AU - Abe K AD - Department of Rehabilitation Medicine, Keio University Hospital, Tokyo, Japan. FAU - Tanabe, Shigeo AU - Tanabe S AD - Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake-shi, Aichi, Japan. FAU - Yamaguchi, Tomofumi AU - Yamaguchi T AD - Department of Physical Therapy, Yamagata Prefectural University of Health Sciences, Yamagata-shi, Yamagata, Japan. FAU - Liu, Meigen AU - Liu M AD - Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan. LA - eng PT - Journal Article DEP - 20181009 PL - England TA - Ther Adv Neurol Disord JT - Therapeutic advances in neurological disorders JID - 101480242 PMC - PMC6178123 OTO - NOTNLM OT - cerebrovascular disease OT - electrical stimulation OT - hemiparesis OT - motor imagery OT - rehabilitation COIS- Conflict of interest statement: The authors declare that there is no conflict of interest. EDAT- 2018/10/18 06:00 MHDA- 2018/10/18 06:01 PMCR- 2018/10/09 CRDT- 2018/10/18 06:00 PHST- 2018/02/14 00:00 [received] PHST- 2018/08/01 00:00 [accepted] PHST- 2018/10/18 06:00 [entrez] PHST- 2018/10/18 06:00 [pubmed] PHST- 2018/10/18 06:01 [medline] PHST- 2018/10/09 00:00 [pmc-release] AID - 10.1177_1756286418804785 [pii] AID - 10.1177/1756286418804785 [doi] PST - epublish SO - Ther Adv Neurol Disord. 2018 Oct 9;11:1756286418804785. doi: 10.1177/1756286418804785. eCollection 2018.