Rehab Centers: Variability in Cadence During Forced Cycling Predicts Motor Improvement in Individuals With Parkinson’s Disease.

Variability in Cadence During Forced Cycling Predicts Motor Improvement in Individuals With Parkinson’s Disease.

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IEEE Trans Neural Syst Rehabil Eng. 2012 Oct 24;
Ridgel A, Abdar H, Alberts J, Discenzo F, Loparo K

Variability in severity and progression of Parkinsons disease symptoms makes it challenging to design therapy interventions that provide maximal benefit. Previous studies showed that forced cycling, at greater pedaling rates, results in greater improvements in motor function than voluntary cycling. The precise mechanism for differences in function following exercise is unknown. We examined the complexity of biomechanical and physiological features of forced and voluntary cycling and correlated these features to improvements in motor function as measured by the Unified Parkinsons Disease Rating Scale (UPDRS). Heart rate, cadence and power were analyzed using entropy signal processing techniques. Pattern variability in heart rate and power were greater in the voluntary group when compared to forced group. In contrast, variability in cadence was higher during forced cycling. UPDRS Motor III scores predicted from the pattern variability data were highly correlated to measured scores in the forced group. This study shows how time series analysis methods of biomechanical and physiological parameters of exercise can be used to predict improvements in motor function. This knowledge will be important in the development of optimal exercise-based rehabilitation programs for Parkinsons disease.
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[Obstetric brachial palsy, a historical review].

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Rev Neurol. 2012 Nov 16; 55(10): 619-25
Collado-Vazquez S, Jimenez-Antona C, Carrillo JM

INTRODUCTION. Lesions of the peripheral nerves have been known since ancient times, but there are few references to the treatments that were used in the past. AIM. To analyse obstetric brachial palsy and its treatments throughout history. DEVELOPMENT. There are a number of different references to the peripheral nerves and their lesions, although little is known about the treatments that were applied in the past. William Smellie first reported obstetric brachial palsy in 1764 and the term was coined by Duchenne de Boulogne in 1872. In 1877, Erb analysed four cases of obstetric brachial palsy and conducted studies on the excitation of the brachial plexus with electric currents. In 1885, Klumpke described palsy of the lower roots of the brachial plexus. In the late 19th century pathophysiology studies were carried out and at the beginning of the 20th century the first surgical interventions were performed. Today, microsurgery techniques, protocols on how to proceed, and rehabilitation treatment of this lesion are all available and offer good outcomes. CONCLUSIONS. Since the first clinical description of obstetric brachial palsy by Smellie and the reports of the different types of brachial palsy by Duchenne, Erb and Klumpke, many pathophysiological studies have been conducted. Notable developments have been made in conservative and surgical treatments, with very favourable recoveries being observed in children with obstetric brachial palsy.
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The Influence of Perceived Health on Labour Participation Among Long Term Unemployed.

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J Occup Rehabil. 2012 Nov 11;
Lötters F, Carlier B, Bakker B, Borgers N, Schuring M, Burdorf A

Backgrounds Few studies have addressed the specific contribution of health in relation to socio-demographic and motivational aspects to re-entering paid employment. The purpose of this study among beneficiaries of unemployment benefits is to evaluate the detrimental effects of poor health and a lack of motivation on the likelihood of getting a job and to develop a decision support model that predicts remaining unemployment after 12 months. Methods A longitudinal cohort study was conducted among people on unemployment benefit (UB) or social insurance benefit (SIB). The time-window of the study was 18 months. Written questionnaires were filled out 3 months post-benefit assessment, 6, 12 and 18 months. Multivariate logistic regression analysis was used to identify the barriers of re-entering paid employment. Subsequently, a predictive model was constructed to estimate the probability for every combination of determinants for a person to remain unemployed in the next 12 months. Results Older age (?55 years), a poor perceived health, and a lack of willingness to accept a job were the most prominent predictive factors for remaining unemployed after 12 months in both UB and SIB groups. Lower education in the UB group and being married or living together and poor self-reliance in the SIB group were additional risk factors for long-term unemployment. Conclusion Vocational rehabilitation of people on long-term social benefit should address perceived health, socio-demographic, and motivational aspects as key factors that determine prolonged unemployment. A predictive flow chart can be used to detect most vulnerable persons at risk for remaining long-term unemployment.
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Selected abstracts from recent publications in cardiopulmonary disease prevention and rehabilitation.

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J Cardiopulm Rehabil Prev. 2012 Nov; 32(6): 420-2
Roitman JL, Kalra S

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