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Arch Phys Med Rehabil. 2007 Oct;88(10):1332-8.

Effects of robot-aided bilateral force-induced isokinetic arm training combined with conventional rehabilitation on arm motor function in patients with chronic stroke.

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  • 1Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan.

Abstract

OBJECTIVE:

To analyze the effects of conventional rehabilitation combined with bilateral force-induced isokinetic arm movement training on paretic upper-limb motor recovery in patients with chronic stroke.

DESIGN:

Single-cohort, pre- and postretention design.

SETTING:

Rehabilitation department at a medical university.

PARTICIPANTS:

Twenty subjects who had unilateral strokes at least 6 months before enrolling in the study.

INTERVENTION:

A training program (40min/session, 3 sessions/wk for 8wk) consisting of 10 minutes of conventional rehabilitation and 30 minutes of robot-aided, bilateral force-induced, isokinetic arm movement training to improve paretic upper-limb motor function.

MAIN OUTCOME MEASURES:

The interval of pretest, post-test, and retention test was set at 8 weeks. Clinical arm motor function (Fugl-Meyer Assessment [FMA], upper-limb motor function, Frenchay Arm Test, Modified Ashworth Scale), paretic upper-limb strength (grip strength, arm push and pull strength), and reaching kinematics analysis (peak velocity, percentage of time to peak velocity, movement time, normalized jerk score) were used as outcome measures.

RESULTS:

After comparing the sets of scores, we found that the post-test and retention test in arm motor function significantly improved in terms of grip (P=.009), push (P=.001), and pull (P=.001) strengths, and FMA upper-limb scale (P<.001). Reaching kinematics significantly improved in terms of movement time (P=.015), peak velocity (P=.035), percentage of time to peak velocity (P=.004), and normalized jerk score (P=.008). Improvement in reaching ability was not sustained in the retention test.

CONCLUSIONS:

Preliminary results showed that conventional rehabilitation combined with robot-aided, bilateral force-induced, isokinetic arm training might enhance the recovery of strength and motor control ability in the paretic upper limb of patients with chronic stroke.

PMID:
17908578
[PubMed - indexed for MEDLINE]
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