Validity and reliability of center of pressure measures to quantify trunk control ability in individuals after stroke in subacute phase during unstable sitting test.

Objective: The objective of this study was to assess, for individuals with hemiparesis after a stroke in subacute phase, the validity and reliability of center of pressure (CoP) parameters measured during sitting balance on an unstable support. Materials and methods: Thirty-two individuals after stroke were included in this observational study for validity and reliability (mean age: 64.34 ± 9.30y, 23 men, mean post-stroke duration: 55.64 ± 27days). Intra-Class Correlation (ICC) and Bland Altman plot assessed intra-rater reliability and inter-rater reliability of CoP parameters during unstable sitting balance test (anteroposterior or mediolateral imbalance). Validity was established by correlating CoP parameters with the Modified Functional Reach Test, trunk strength, Balance Assessment in Sitting and Standing and Timed Up and Go tests. Results: The findings highlighted significant correlations between CoP parameters and trunk strength for anteroposterior seated destabilization. Good to excellent intra and inter-rater reliability (0.87 ≤ ICC ≤ 0.95) was observed for all CoP length parameters and CoP mean velocity in both mediolateral and anteroposterior imbalance conditions. CoP parameters for mediolateral unstable sitting condition were more reliable than for anteroposterior instability. Conclusion: Trunk control assessment during unstable sitting position on a seesaw is a reliable test for assessing trunk control ability in individuals after a stroke. CoP length and mean velocity are found to be the best parameters.

Reliability and validity of the trunk position sense and modified functional reach tests in individuals after stroke.

The psychometric qualities of the proprioception and dynamic trunk control tests have rarely been studied in individuals after stroke. OBJECTIVE: To investigate the reliability and validity of the Trunk Position Sense Test (TPS) and Modified Functional Reach Test (MFRT) in persons after stroke. METHODS: Thirty-two participants were included. The TPS and MFRT were assessed by two physiotherapists during a first session. After resting, a second session was conducted. The intraclass correlation coefficient (ICC) was calculated to assess the test-retest (ICC3,k) and inter-rater reliability (ICC2,k). Pearson correlations coefficients were calculated between TPS/MFRT performances and clinical tests (trunk strength, Timed Up and Go and Balance Assessment in Sitting and Standing Positions - BASSP). RESULTS: The TPS inter-rater reliability was good for vertical error (ICC = 0.75 [0.50-0.88]) while it was moderate for horizontal error (ICC = 0.48 [0.10-0.75]) as well as for test-retest reliability (0.39 ≤ ICC ≤ 0.59). As for the MFRT, inter-rater (0.76 ≤ ICC ≤ 0.90) and test-retest reliability (0.71 ≤ ICC ≤ 0.91) were good to excellent for anterior, paretic et non-paretic displacements. Horizontal errors for the TPS (-0.26 ≤ r ≤ -0.36) and anterior MFRT (0.38 ≤ r ≤ 0.64) values correlated moderately with trunk strength. CONCLUSION: The MFRT is a reliable test for persons after stroke with trunk control impairments. The TPS does not appear to be relevant for post-stroke individuals. This can be explained by the fact that its procedure is not easily applied for individuals after stroke - who may have significant motor and cognitive impairments.

Effect of different walking aids on walking capacity of patients with poststroke hemiparesis.

OBJECTIVE: To examine the effects of 3 different walking aids on walking capacity, temporo-spatial gait parameters, and patient satisfaction. DESIGN: Observational study. SETTING: University Hospital of Geneva. PARTICIPANTS: Hemiparetic inpatients (N=25) with impaired gait, at an early stage of rehabilitation, unfamiliar with any of the walking aids tested. INTERVENTIONS: On 3 consecutive days subjects used, in random order, 1 of 3 walking aids: 4-point cane, simple cane with ergonomic handgrip, and Nordic stick. MAIN OUTCOME MEASURES: Maximal walking distance in 6 minutes, temporo-spatial gait parameters determined with a commercial electronic gait analysis system, and patients' preference on a subjective ranking scale. RESULTS: Walking distance was greatest with the simple cane with an ergonomic handgrip, followed by the 4-point cane and the Nordic walking stick. Walking velocity was highest with the simple cane, which was also indicated as the preferred walking aid by the patients. There was no significant difference in step length symmetry. CONCLUSIONS: The simple cane with the ergonomic handgrip was not only preferred by patients, but was also the most efficient among 3 commonly used walking aids. It appears justified to take patients' subjective preference into account when prescribing a walking aid.

[Parkinson disease: description of an interdisciplinary program of functional group rehabilitation]. / Maladie de Parkinson: description d'un programme interdisciplinaire de rééducation fonctionnelle en groupe.

Neurorehabilitation for Parkinson's disease, in the form of physical and occupational therapy, has long been advocated but also seriously questioned with respect to its specific content, its mechanisms, its efficacy and its costs. Many factors may be put forward to explain the lack of consensus surrounding these interventions, including the multiplicity of different programs proposed, the scarcity of controlled studies available and the inadequacy of some assessment methods used. In this article, we describe a new neurorehabilitation program for Parkinson's disease which is characterized by some original features. In particular, the specific functional patients' needs were taken into account instead of the symptoms related to the condition, therapeutic interventions favoured a multidisciplinary approach, patients trained in groups rather than individually, the program combined different methods and was continuously evolving over time, and finally we used simple but goal-oriented measurement methods to assess efficacy. The study included 22 patients. Statistically significant positive results were obtained by the end of the program, suggesting that the program in its current form was indeed capable to generate a functional benefit of sufficient magnitude to be objectively detected by the assessment methods used. In our opinion, our data emphasizes the usefulness of specific neurorehabilitation programs in the global management of Parkinson's disease.