The paper reviews studies conducted on physical activities and exercise in elderly persons with neurological impairment due to stroke, Guillain-Barre syndrome, Parkinson's disease, multiple sclerosis or post-polio syndrome. The paper concludes: (i) it is not possible at present to draw conclusions regarding persons with Guillain-Barre syndrome and Parkinson's disease; (ii) individuals with multiple sclerosis and post-polio syndrome benefit from physical activity, but all studies have so far been conducted on those under 65 years of age, and its effect on elderly persons with these diseases is not known; (iii) exercise and customary activities (walking and swimming) should be encouraged and promoted in elderly persons after stroke.
In this study 32 women were investigated in order to elucidate how shoulder rotational muscular strength and upper-extremity impairments are associated with activity limitation in moderate rheumatoid arthritis. A regression analysis was carried out to determine whether these variables could indicate the outcomes of a shoulder-arm disability questionnaire (SDQ) comprising three parts, plus parts of the Health Assessment Questionnaire, the Functional Status Questionnaire and the Sickness Impact Profile. Shoulder-arm and wrist movements were moderate-to-good (r = 0.53, p < 0.01 and r = 0.58, p < 0.01, respectively) in relation to isometric internal rotational strength. The relationship between isokinetic concentric and eccentric internal rotational strength was moderate-to-good (r = 0.59, p < 0.01). Isokinetic eccentric internal rotation strength, shoulder-arm movement, joint tenderness and pain variables together indicated 25-61% (adjusted R-2) Of the variation in SDQ, Eccentric strength had the highest adjusted R-2 (41%) in relation to SDQ 1, covering mainly personal hygiene. Shoulder rotational strength did not indicate the more general instruments, Thus, hand and elbow impairments also are probably important in explaining activity limitations.
The aim of this study was to describe the relief of symptoms and improvement in other aspects of health-related quality of life 5 years after coronary artery by-pass grafting in relation to age. Patients in western Sweden were approached with an inquiry prior to surgery and 5 years after the operation. Health-related quality of life was estimated with 3 different instruments: Physical Activity Score (PAS), Nottingham Health Profile (NHP), Psychological General Well-Being Index (PGWB). Prior to surgery patients were approached either in the ward or by post and 5 years after surgery they were approached by post. A total of 1719 patients were available for the survey, of whom 876 (51%) responded to the survey both prior to and after 5 years. Among the 876 respondents 287 were <60 years, 331 were 60-67 years and 258 were >67 years. In terms of physical activity, chest pain and dyspnoea, a similar improvement was observed regardless of age. In terms of health-related quality of life questionnaires, there was an inverse association between age and improvement when using PAS and a similar trend was observed with NHP and PGWB. In conclusion, 5 years after coronary artery bypass grafting relief of symptoms and improvement in physical activity was not associated with age, whereas improvement in other aspects of health-related quality of life tended to be less marked in elderly people. Overall age seemed to have a small impact on the improved well-being 5 years after coronary surgery. However, due to the limited response rate the results may not be applicable to a non-selected coronary artery bypass grafting population.
The Rivermead Mobility Index is used to measure mobility in patients with head injury or stroke. The purpose of the study was to examine construct validity, predictive validity, and the responsiveness of the Rivermead Mobility Index in stroke patients. Thirty-eight stroke inpatients participated in the study. The Rivermead Mobility Index, the Barthel Index, and the Berg Balance Scale were administered at admission to the rehabilitation ward and at discharge. The results showed that the Rivermead Mobility Index fulfilled the Guttman scaling criteria (coefficients of reproducibility > 0.9, coefficients of scalability > 0.7). The Rivermead Mobility Index scores were highly correlated with the Barthel Index scores (Spearman rs > 0.6) and the Berg Balance Scale scores (Spearman rs > = 0.8, all ps < 0.001). The Rivermead Mobility Index score at admission was closely correlated with the Barthel Index score at discharge (Spearman r = 0.77, p < 0.001). About 76% (29) of the subjects improved by more than 3 Rivermead Mobility Index points (median = 5) during their stay. The relationship between the change in score of the Rivermead Mobility Index and the Barthel Index was fair (Spearman r = 0.6, p < 0.001). These results indicate that the Rivermead Mobility Index is valid and sensitive to change over time. It is therefore a useful scale for the assessment of mobility in stroke patients.
To obtain reference data for future studies of patients with low back pain, back muscle fatigue was studied by surface electromyography at L1 and L5 lumbar levels in 55 healthy subjects exerting 80% of maximal voluntary contraction of the back extensors in a sitting position. Reference data were the initial value and rate of decrease (slope) of the median frequency during the contraction. The aim was also to study the effects of contraction time, gender differences, electrode locations and correlations with torque, age and subjective ratings. Initial median frequency was 52 Hz +/- 7.5, with no difference between electrode locations; steeper slopes were found at L5 level (-0.44%/s +/- 0.25) than at L1 (-0.36%/s +/- 0.26). No right-left differences and no gender differences were found for these parameters. A correlation was observed between slope and initial median frequency, higher for men (r approximately -0.7) than for women (r approximately -0.5). Intersubject coefficient of variation for the slope was smallest for the longest (45 seconds) recording time (60-70%), but still much higher than for the initial median frequency (14%). The torque and the subjective ratings of fatigue showed no correlation with the electromyography variables. We conclude that the same reference values can be used for men and women. Owing to the large intersubject range of the slope, the clinical use of this variable may, however, be impeded.
A 6-month follow-up of a single-blind, randomized, controlled trial in Southwest Stockholm was performed in order to evaluate the effect of early supported discharge and continued rehabilitation at home after stroke. Eighty-three stroke patients with moderate neurological impairments, continent, independent in feeding, and mental function within normal limits one week after onset were included in the study. The patients were allocated 1:1 to early supported discharge and continued rehabilitation at home by a specialized team, versus routine rehabilitation. Patient outcomes measured were motor capacity, dysphasia, activities of daily living, social activities, perceived dysfunction, mortality and reported falls. Data on length of stay in hospital; initial and recurrent during 6 months were compared. The 6-month follow-up of 78 patients showed no statistically significant differences in patient outcome. The results of multivariate logistic regression analysis suggest a positive effect of home rehabilitation on activities of daily living. At 3-6 months the frequency of significant improvements was higher in the intervention group. Death or dependency in activities of daily living was 24% in the intervention group compared with 44% in the control group. The mean initial hospitalization was 29 days in routine rehabilitation group versus 14 days in the home rehabilitation group. We conclude that for moderately disabled stroke patients with mental function within normal limits, early supported discharge and continued rehabilitation at home had no less a beneficial effect on patient outcome than routine rehabilitation, reduced initial hospitalization significantly and had no adverse effects on mortality and number of falls.
The aim of the present study was to determine whether any significant alterations of evoked potentials could be detected after treatment of patients with multiple sclerosis with a cooling suit. All patients had previously experienced a positive effect of this treatment. Six patients were investigated with visual, sensory and motor evoked potentials and six further patients with only motor evoked potentials. All patients had relevant clinical lesions. The mean values for the group of patients were similar before and after cooling, but a few individuals showed a substantial improvement of motor evoked potentials after cooling, with increased amplitude and/or shortened central motor conduction time. There was also a weak, but significant, correlation between temperature decrements and the reduction of central motor conduction time. However, since the central motor conduction times of most patients were only slightly affected, this effect could explain only a small part of the beneficial effect of cooling. Effects on cognition and executive ability or improvement of spasticity may be of greater importance.
The purpose was to assess the validity of a novel Activity Monitor to quantify physical activity in congestive heart failure. The Activity Monitor is based on long-term ambulatory monitoring of signals from body-fixed accelerometers. Information can be obtained on which mobility-related activity is performed, when, how intense, and for how long. Ten patients performed several functional activities. Continuous registrations of accelerometer signals were made and the output was compared with visual analysis of simultaneously made video recordings (reference method). Overall results showed an agreement between both methods of 90%. Percentages of sensitivity and predictive value were higher than 80% for most activities. Overall number of transitions was determined well (Activity Monitor, 153; video, 149; p = 0.33). It was concluded that the Activity Monitor is a valid instrument to quantify several aspects of everyday physical activity in congestive heart failure.
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The aim of this study was to evaluate the feasibility of dietary counselling and the predictability of success in reducing fat intake to less than 20% of total energy in patients with symptomatic coronary heart disease. Forty-seven patients with coronary heart disease attended a 2-week in-house cardiac rehabilitation course with the main emphasis on individual dietary counselling by a nutritionist. Patients were followed up at 3 and 6 months. The dietary data were collected by means of 3-7 days food diaries. Mean fat intake decreased from 33.6 +/- 6.2% to 24.7 +/- 5.5% of total energy intake at 3 months and to 27.0 +/- 6.9% (p < 0.001) at 6 months. Only 13% of the patients were able to reduce their dietary fat intake as recommended. Thus, reduction of > or = 20% was considered a good response, while reduction of < 20% was classified as poor. Forty-seven percent (n = 22) of the patients were good and 53% (n = 25) poor responders. It was not possible to predict the success rate from the baseline data. After a 2-week intensive counselling period at the rehabilitation centre, half of the coronary patients were able to comply with a low-fat diet at home for 6 months. Long-term compliance requires further investigation.
This study was conducted to investigate the change in the kinematics and physiological cost of walking that occurs during training with functional electrical stimulation (FES)-assisted walking in persons with incomplete injuries. The main effect of FES-assisted walking was to change hip excursion and ankle dorsiflexion during swing and at foot contact, whereas training with FES-assisted walking changed the spatio-temporal parameters of walking (walking speed, cycle length and frequency as well as time in stance). The use of FES-assisted walking does not change the walking speed achieved during a 5-minute trial nor the physiological cost of walking but when combined with walking training, eight of the nine participants improved either their physiological cost index or their walking speed. It is concluded that FES-assisted walking changes the joint angular kinematic pattern of walking, but training is necessary to integrate these changes into functional gains.
