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Research of upper limb rehabilitation training robot

Upper limb rehabilitation training robot

44

Subject information (Stroke patients: Thirty-nine) Average age (year): 58.7 (36-75), Sex (male/female): 28/11, Affected side (right/left): 21/18, Average time from onset to intervention (days): 60.3 (22-130), Diagnosis (cerebral hemorrhage/cerebral infarction): 27/12 Average FIM motor item: 68.5, Average FIM cognitive item: 29.2 Subject information (Healthy subjects: Five) Average age (year): 30.6 (24-43), Sex (male/female): 4/1

Cumulative number of cases 2019: 5, 2020: 12, 2021: 18, 2022: 26, 2023: 42, 2024: 44 (healthy people: Five, stroke patients: Thirty-nine) *Beginning in April 2024, the upper limb robot began experiencing sporadic malfunctions (the robot would stop working). A contractor carried out maintenance in July, but the problem was not resolved, and recruitment of participants was discontinued. This study has been terminated due to the possibility of serious risks. *The cumulative number of cases reported in the previous periodic was 39 (Number of completed cases: 38, Number of discontinued cases: 1), but the correct number was 42 (Number of completed cases: 41, Number of discontinued cases: 1).

One subject in the control group experienced a recurrent stroke during the study period, but this was not causally related to the study design.

Gain results were shown in the order of upper limb robot group A (2sets/day), upper limb robot group B (1set/day), and the control group. Second outcomes show only items that could be assessed in all patients. Main outcome (Fugl-Meyer Assessment upper limbs total score): 9.0/5.8/5.5 Second outcomes: Shoulder joint flexion range of motion: 16.4/19.6/14.6, Elbow joint extension range of motion: 10.5/3.8/6.2, Functional Skills Measure After Paralysis: 6.9/7.6/6.7, Motor Activity Log (AOU): 0.7/1.0/0.8, (QOM): 0.6/1.2/0.8, Action Research Arm Test: 7.3/5.9/5.9, Data held within the robot: Smoothness: 0.076/0.074/0.034 (p<0.05*), Reach Error: -3.1/-3.3/-1.9, Mean Path Error: -0.772/0.007/-0.466 (p<0.05**), Independence: 0.191/0.185/0.074 * There was a significant difference between the upper limb robot group B and the control group. ** There was a significant difference between the upper limb robot group A and the control group.

In the secondary evaluation, the upper limb robot group B showed significant improvement compared to the control group in "Smoothness", and the "mean path error" showed a significant improvement in the upper limb robot group A compared to the control group. These results suggest that increasing the amount of training using the InMotion ARM Robot was effective in improving the smoothness and accuracy of reaching movements.

Feb. 20, 2026

No

none

https://jrct.mhlw.go.jp/latest-detail/jRCTs042180178

Otaka Yohei

Fujita Health University NanakuriMemorial Hospital

424-1, Oodori, Tsu, Mie

yootaka@fujita-hu.ac.jp

Miyasaka Hiroyuki

Fujita Health University NanakuriMemorial Hospital

424-1, Oodori, Tsu, Mie

+81-59-252-1555

hmiyasak@fujita-hu.ac.jp

Complete

Aug. 01, 2015

Interventional

randomized controlled trial

single blind

historical control

parallel assignment

treatment purpose

1. First stroke in the cerebral hemisphere patients
2. Written informed consent
3. Without shoulder and elbow joint fractures or pain
4. Ability to maintain sitting position

1. Severe aphasia
2. Disorder of consciousness

Both

stroke patients

rehabilitation

Stroke Impairment Assessment Set, Fugl-Meyer Assessment

Active range of motion of the shoulder and elbow joint, Modified Ashworth Scale, 3-dimensional motion analysis, Simple Test for Evaluating Hand Function, Functional Skills Measure After Paralysis, Wolf Motor Function Test, Motor Activity Log, Functional Independence Measure, Action Research Arm Test, Electrophysiologic test, Data in robot equipment

+81-562-93-2865

Feb. 14, 2019

none