RR-PO-1804

Monday 10:00, Palau de Congressos, Exhibition Hall  [Display No. 527]

INFLUENCE OF DIFFERENT PEDALING SPEEDS IN CYCLE ERGOMETER TRAINING ON LEG-EXTENDING MUSCLE STRENGTH AND WALKING PERFORMANCE IN PATIENTS WITH POSTAPOPLECTIC HEMIPLEGIA. Komine Y,Zetsu T,Takasugi S,Yamada S,Majima M；Department of Rehabilitation.Saitama Medical School Hospital.Saitama Japan. PURPOSE: We conducted cycle ergometer training in patients with postapoplectic hemiplegia (hemiplegic patients) at a pedaling speed of 40 or 60 r/min,and evaluated the influence of different pedaling speeds on leg-extending muscle strength(muscle strength) and walking performance in hemiplegic patients.SUBJECTS: The subjects were 8 hemiplegic patients who could walk 500 m or more with or without a cane or an orthosis 8 months or more after the onset of stroke.These patients were divided into 2 groups; 4 hemiplegic patients who underwent cycle ergometer training at a pedaling speed of 40 r/min (3 males and 1 female, mean age: 59.0 years, sites of hemiplegia: 1 case of right hemiplegia and 3 cases of left hemiplegia, Brunnstrome stage: 2 cases of stage IV and 2 cases of stage V) and 4 hemiplegic patients who underwent cycle ergometer training at a pedaling speed of 60 r/min (2 males and 2 females, mean age: 65.0 years, sites of hemiplegia: 1 case of right hemiplegia and 3 cases of left hemiplegia, Brunnstrome stage: 1 case of stage IV and 3 cases of stage V).METHODS:(1) Measurement of muscle strength in the paralyzed and normal legs:StrengthErgo240 was used. (Mitsubishi Electric Engineering Co., Ltd.)Three sets of 3 revolutions of the wheel at a pedaling speed of 40 or 60 r/min were conducted to measure muscle strength.The result of 1 set showing  maximal value was used for the analysis.  (2) Measurement of walking performance: 1) the time (sec) and number of steps (steps) required to walk 10 m; 2) time (sec) required to walk 7.5 m by 8-shaped walking; 3) timed up and go test(sec); and 4) 6 minutes walking distance (m)  were measured at the maximal effort of patients. (1)(2) were measured 2 times before and after cycle ergometer training. (3) Training:Using the StrengthErgo Isokinetic mode, 1 course of training was performed for 15 minutes at a pedaling speed of 40 or 60 r/min. Cycle ergometer training was performed 5 times a week, and the total of 15 courses of training were performed. The subjective load of exercise was established at a slightly hard level of RPE 13.ANALYSES:All measured values were evaluated using two-way ANOVA.  RESULTS : There were no significant differences in muscle strength and walking performance between 2 groups before  training  and also after training.  However, all measured values regarding muscle strength and walking performance significantly improved after training in both groups (p<0.05). CONCLUSIONS:These findings suggest that cycle ergometer training may improve  muscle strength and walking performance in hemiplegic patients regardless of pedaling speeds of the cycle ergometer.