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Biomedical subjects

E Dutil

Publications and source records attributed to E Dutil.

At least 19 recordsLinked to original sources

Involvement of occupational therapy departments in research: a provincial survey.

It is increasingly recognized that research is necessary to advance the practice of occupational therapy. The objective of this study was to determine whether occupational therapy departments in Quebec were commonly involved in research, and whether participation varied with the size of department and type of work setting. Secondly, enablers and barriers to participation in research were identified. A random sample of occupational therapy departments, stratified by size, were surveyed by mail. Participation rate was 74.8% (107/143). Participation in research was noted in half of the departments surveyed (51/107), most frequently as collaborator. Involvement in research was associated (p < .001) with a greater number of therapists in the department. Furthermore, occupational therapy departments in rehabilitation centres and in university hospitals were more likely to participate in research (79% and 90% respectively), whereas participation was lower for long-term care facilities (29%) and community health clinics (38%). When asked to rank factors that may facilitate participation in research, the highest rankings were given to: time allotted to research, research as a priority for administration, adequate financial support, and presence of an occupational therapy researcher and a research centre on site. This survey demonstrates that a number of factors can promote or prevent the realization of research activities within the clinical setting. Strategies are proposed to enhance the integration of research into clinical practice.

Humans↗

Structure of the human anti-apoptotic protein survivin reveals a dimeric arrangement.

Survivin is a 16.5 kDa protein that is expressed during the G2/M phase of the cell cycle and is hypothesized to inhibit a default apoptotic cascade initiated in mitosis. This inhibitory function is coupled to survivin's localization to the mitotic spindle. To begin to address the structural basis of survivin's function, we report the X-ray crystal structure of a recombinant form of full length survivin to 2.58 A resolution. Survivin consists of two defined domains including an N-terminal Zn2+-binding BIR domain linked to a 65 A amphipathic C-terminal alpha-helix. The crystal structure reveals an extensive dimerization interface along a hydrophobic surface on the BIR domain of each survivin monomer. A basic patch acting as a sulfate/phosphate-binding module, an acidic cluster projecting off the BIR domain, and a solvent-accessible hydrophobic surface residing on the C-terminal amphipathic helix, are suggestive of functional protein-protein interaction surfaces.

Amino Acid Sequence↗

Hand sensibility of healthy older people.

OBJECTIVE: To develop normative data for four hand sensibility modalities in older subjects. DESIGN: Cross-sectional. SETTING AND PARTICIPANTS: Three hundred and sixty community-dwelling subjects of both sexes, aged 60 to 94, randomly selected from the electoral list of the city of Sherbrooke, Quebec, Canada. MEASUREMENTS: Touch/pressure threshold (Semmes-Weinstein monofilaments), static and moving two-point discrimination (Mackinnon-Dellon Disk-Criminator), tactile recognition (Modified Pick-up test), and thumb kinesthesia. RESULTS: A reduction with age was found in the performance of the study subjects, with the exception of the kinesthesia test. The values obtained in this study are clearly lower than the norms proposed for adults, underlining the importance of using reference values developed for the target clientele. CONCLUSION: The norms will help clinicians to differentiate better between normal and pathological changes in sensibility with age.

Aged↗

Upper extremity performance test for the elderly (TEMPA): normative data and correlates with sensorimotor parameters. Test d'Evaluation des Membres Supérieurs de Personnes Agées.

OBJECTIVES: Objectives of this study were to develop normative data for the Test d'Evaluation des Membres Supérieurs de Personnes Agées (TEMPA) and determine its relation to upper extremity sensorimotor parameters such as fine and gross dexterity, coordination, strength, endurance, range of motion, and several types of sensibility. DESIGN: Cross-sectional study. SETTING: Community-dwelling subjects. PARTICIPANTS: Three hundred sixty healthy subjects randomly recruited by age and sex strata (60 to 69, 70 to 79, and 80 or older). MAIN OUTCOME MEASURES: Length of execution of the tasks in the TEMPA. RESULTS: Normative data are reported by gender and age group. The time taken to execute the tasks increased significantly with age. The women were faster on the tasks requiring a higher degree of fine dexterity, whereas the task requiring a lesser degree of fine dexterity and sensibility and more grip strength was accomplished faster by the men. Subjects who were more active and described themselves as being in excellent or good health performed better. CONCLUSION: The norms will help clinicians differentiate better between normal and pathological aging in upper extremity performance.

Aged↗

Upper-extremity motor co-ordination of healthy elderly people.

Motor co-ordination is an important prerequisite to adequate upper-extremity performance. With the ageing of the population, more and more elderly people are at risk of acquiring upper-extremity motor inco-ordination following sensorimotor deficit. The main objective of the study was to develop normative data on upper-extremity motor co-ordination for elderly people. Three hundred and sixty subjects aged 60 and over were randomly selected and evaluated with the Finger-Nose Test. The results revealed a linear decline in the performance of this test with age. Younger, more active and subjectively healthier subjects presented better motor co-ordination. Some differences were found between sexes and sides. The normative data will help clinicians to identify pathological reduction in motor co-ordination in an elderly population.

Aged↗

The Purdue Pegboard Test: normative data for people aged 60 and over.

Manual dexterity is frequently evaluated in rehabilitation services to estimate hand function. Several tests have been developed for this purpose, including the Purdue Pegboard, which measures fine manual dexterity. The goals of the study were to verify the test-retest reliability with subjects aged 60 and over without upper limb impairment, and to develop normative data based on a random sample of healthy older community-living individuals. The results show that the test-retest reliability is good (intra-class correlation coefficients from 0.66 to 0.90, depending on the subtest). Norms are presented to help clinicians involved in rehabilitation services to better differentiate real dexterity deficits from those that may be attributed to normal ageing.

Aged↗

Comparison of the Jamar dynamometer and the Martin vigorimeter for grip strength measurements in a healthy elderly population.

Grip strength is considered to be a good indicator of upper limb strength. The Jamar dynamometer and the Martin vigorimeter are two instruments frequently used to assess grip strength in clinical and research settings. The purpose of this study was to compare these instruments for assessing grip strength in 360 people aged 60 to 94 years, randomly selected from the electoral list. Anthropometric data were also collected. Data analyses were done using the maximum value on 3 trials with each instrument. Although the Martin vigorimeter is a pressure measure implying a dynamic movement as opposed to the static strength measure of the Jamar dynamometer, results indicate a very high correlation between the two measures. Grip strength measured by the Jamar dynamometer is even more dependent on hand anthropometry than measurements with the Martin vigorimeter.

Aged↗

Validation of the Box and Block Test as a measure of dexterity of elderly people: reliability, validity, and norms studies.

Manual dexterity is a skill frequently evaluated in rehabilitation to estimate hand function. Several tests have been developed for this purpose, including the Box and Block Test (BBT) that measures gross manual dexterity. The goal of the present study was to verify the test-retest reliability and construct validity of the BBT with subjects aged 60 and over with upper limb impairment. The second objective of this research was to develop normative data based on a random sample of healthy elderly community-living individuals. The results show that the test-retest reliability is high (intraclass correlations coefficients of 0.89 to 0.97) and the validity of the test is shown by significant correlations between the BBT, an upper limb performance measurement and a functional independence measurement. The norms will help rehabilitation clinicians to differentiate better between real difficulties and those that may be attributed to normal aging.

Activities of Daily Living↗

Clinical significance of the V-shaped space in the subluxed shoulder of hemiplegics.

Recently, it has been proposed that shoulder subluxation in hemiplegia is accompanied by 1) the appearance of a V-shaped articular configuration occurring between the humeral head and glenoid fossa and 2) the presence of chronic pain. The main purpose of this study was to investigate the validity of these statements. We evaluated 40 hemiplegic subjects over 3 months. Radiographs of the affected and nonaffected shoulders were taken at both a frontal plane (0 degree) and a 45 degree incidence. From these patients, subluxed (n = 19) and nonsubluxed (n = 21) groups were formed. Pain was evaluated using the Present Pain Intensity index of the McGill Pain Questionnaire. On these x-ray films, measurements were taken of the V-shaped space, abduction of the arm, and rotation of the scapula. The statistical analysis (analysis of variance for repeated measures) contrasted the results obtained from the nonaffected side with those from the affected side over the 3 months studied. At the 45 degree angle, which better exposes the articular configuration of the shoulder, the difference in the V angle between the affected and nonaffected shoulders was significant for the subluxed group (p less than 0.01), indicating that such a V-shaped space can be identified. The measures taken also indicate that a downward subluxation of the humeral head occurs relative to the scapula without any systematic abduction of the humerus or downward rotation of the scapula. None of the results obtained from the frontal plane x-ray films was significant. Finally, no significant relation was found between subluxation and shoulder pain.

Adult↗

Motor function and activities of daily living assessments: a study of three tests for persons with hemiplegia.

The relationship between upper extremity motor function and independence in basic activities of daily living in subjects with hemiplegia was explored. The Barthel Index (Mahoney & Barthel, 1965) and the Fugl-Meyer Test (Fugl-Meyer, Jääskö, Leyman, Olsson, & Steglind, 1975) were selected as the standard instruments for the evaluation of activities of daily living and upper extremity motor function, respectively, because their validity and reliability have been demonstrated many times. The Functional Test for the Hemiplegic/Paretic Upper Extremity (Wilson, Baker, & Craddock, 1984a, 1984b) was also used for the evaluation of upper extremity motor function. The results obtained in 18 subjects with hemiplegia indicate that the scores on the Barthel Index are poorly correlated with both the Fugl-Meyer Test and the Functional Test for the Hemiplegic/Paretic Upper Extremity scores. It is suggested that variables other than motor function, such as the learning of compensatory techniques and perceptual-cognitive status, are responsible for this discrepancy because they can influence activities of daily living performance in persons with hemiplegia. The high correlation between the scores on the Fugl-Meyer Test and the Functional Test for the Hemiplegic/Paretic Upper Extremity indicates that either test may be used for the assessment of upper extremity motor function.

Activities of Daily Living↗

Yawning: a possible confounding variable in EMG biofeedback studies.

An elderly hemiplegic patient participating in an EMG biofeedback training program was observed to produce a synergistic flexion movement of the plegic (determined by functional evaluations) upper limb while yawning. In the course of the training sessions the electrical activity of the anterior deltoid (the target muscle) was recorded during yawning. These peak EMG values were greatly facilitated in comparison with the session mean peak values obtained during an attempted maximum voluntary isometric contraction (shoulder flexion) of the same limb (e.g., Trial 1: 85.00 vs. 4.33 microV). The possibility of yawning as a confounding variable in EMG biofeedback studies is presented and discussed.

Aged↗

An evaluation of the hemiplegic subject based on the Bobath approach. Part I: The model.

An evaluation, based on the Bobath approach to treatment has been developed. A model, substantiating this evaluation is presented. In this model, the three stages of motor recovery presented by Bobath have been extended to six, to better follow the progression of the patient. Six parameters have also been identified. These are the elements to be quantified so that the progress of the patient through the stages of motor recovery can be followed. Four of these parameters are borrowed from the Bobath approach, that is: postural reaction, muscle tone, reflex activity and active movement. Two have been added: sensorium and pain. An accompanying paper presents the evaluation protocol along with the operational definition of each of these parameters.

Disability Evaluation↗

An evaluation of the hemiplegic subject based on the Bobath approach. Part III. A validation study.

Sixty-two hemiplegic subjects were treated with the Bobath approach for a period of three months. During this time they were evaluated on three occasions. The testing battery consisted of a Bobath evaluation, the Brunnstrom scale, the Fugl-Meyer test, the Upper Extremity Functional Test (UEFT) and the Present Pain Intensity (PPI) of the McGill pain questionnaire. A Friedman analysis of variance showed that, except for pain, all the protocols used disclosed significant progress (p less than 0.001) over time in terms of motor recovery. Except for pain, the results of the Bobath evaluation were significantly correlated (Spearman's Rho, p less than 0.001) with the results of the other testing procedures. It is concluded that the new Bobath evaluation proposed in a previous paper is as sensitive in depicting progress in motor recovery over time as are the other testing procedures used. Furthermore, this new evaluation seems to be measuring similar properties to the other tests. However, pain (PPI) appears not to be an important dependent variable.

Adult↗

An evaluation of the hemiplegic subject based on the Bobath approach. Part II: The evaluation protocol.

A protocol of evaluation of the hemiplegic patient based on the Bobath approach to treatment is presented. Six parameters are evaluated: sensorium, muscle tone, reflex activity, active movement, postural reactions and pain. The first and last of these are included because of their possible effects on the motor recovery process of the hemiplegic patient. The other four are directly borrowed from the Bobath modality of treatment. For each of these parameters, the procedures are given for its evaluation along with its respective rating scales. These scales are of an ordinal nature ranging from 0 to 3. It is suggested that this new evaluation protocol is fully compatible with the therapeutic modality developed by Bobath and as well is adequate to quantify patient progress in the principle aspects treated by this well used rehabilitation approach.

Disability Evaluation↗

Hand function in the elderly: relation to osteoarthritis.

Hand function and osteoarthritis (OA) were assessed in 32 subjects, over 60-years-old. The Smith Hand Function Test bore a relation to age, coordination and hand strength but not to the degree of OA. Hand strength also was not related to OA. Subjective hand disability, measured with the Stanford Health Assessment Questionnaire, correlated with radiographic OA and joint tenderness as well as with sex and hand strength. OA does not contribute significantly to the objective decline in hand function in the elderly but may contribute to a subjective sense of functional limitation.

Aged↗

Shoulder subluxation in hemiplegia: a radiologic correlational study.

A tridimensional (3-D) x-ray method of evaluation of the shoulder was contrasted with six clinical and radiologic techniques used to evaluate shoulder subluxation, in 50 hemiplegic subjects. The 3-D evaluation is obtained through a mathematical computation associating two x-rays of the same shoulder, one taken at 0 degree (anteroposterior) and the other at a 45 degrees oblique view. A vector is thus obtained quantifying the separation from the apex of the humeral head to the inferior border of the glenoid fossa. The Y component (cephalocaudal) of this vector is used to represent the inferior displacement of the humeral head. The six other techniques of evaluation were: a) palpation, or the number of finger breadths inserted between the acromial process and the head of the humerus; b) anthropometry, or the distance between the acromial process and the lateral epicondyle of the humerus; c) templates, or the use of four schemas representing different degrees of separation of the humeral head from the glenoid fossa; d) a measure of the relation of the center of the humeral head to the center of the glenoid fossa; e) the vertical distance between the center of the humeral head and the center of the glenoid fossa; and f) the vertical distance between the apex of the humeral head and the inferior border of the glenoid fossa. Correlation coefficients contrasting the 3-D x-ray technique and the six other measures ranged from .738 to .995. The high level of precision and reliability of the 3-D measure indirectly validated the other measurement techniques.

Female↗

Rotation of the scapula and shoulder subluxation in hemiplegia.

Inferior subluxation of the shoulder in hemiplegia was measured using a tridimensional (3-D) x-ray technique. This technique gave the true vertical distance separating the apex of the humeral head and the inferior margin of the glenoid cavity. Both shoulders of each subject were evaluated and the difference used as a measure of subluxation. This measure was then compared to the orientation of the scapula relative to the vertical, to the abduction, and to the relative abduction of the arm. Relative abduction is defined as the angle between the humerus and the glenoid fossa. It has been suggested that these factors are associated with inferior subluxation in hemiplegia. Results of this study of 50 volunteer stroke patients indicated that the affected and nonaffected shoulders were different (subluxed) in terms of the vertical position of the humerus vis-à-vis the scapula. The orientation of the glenoid cavities was also different, the subluxed one facing less downward. The angle of abduction of the arm of the affected side was significantly greater than on the nonaffected side, but the relative abduction of the arm was on the same order of magnitude for both sides. There was no significant relationship between the orientation of the scapula and the severity of the subluxation. The abduction of the humerus was weakly (r = .24) related to the subluxation, which partly explained the weak association found between the relative abduction of the arm and the subluxation. It was concluded that the position of the scapula and the relative abduction of the arm cannot be considered important factors in the occurrence of inferior subluxation in hemiplegia.

Female↗