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Test-retest reliability and convergent validity of a computer based hand function test protocol in people with arthritis.

Srikesavan CS, Shay B, Szturm T - Open Orthop J (2015)

Bottom Line: Self-reported joint pain and stiffness levels were recorded before and after each task.Significant reduction in pain and joint stiffness (p<0.05) was observed after performing each task.This allows an innovative method of assessing performance than considering the time taken to complete a task or relying on subjective measures of self-reports on a limited range of objects and tasks covered.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Graduate Studies, University of Manitoba, Winnipeg, Canada.

ABSTRACT

Objectives: A computer based hand function assessment tool has been developed to provide a standardized method for quantifying task performance during manipulations of common objects/tools/utensils with diverse physical properties and grip/grasp requirements for handling. The study objectives were to determine test-retest reliability and convergent validity of the test protocol in people with arthritis.

Methods: Three different object manipulation tasks were evaluated twice in forty people with rheumatoid arthritis (RA) or hand osteoarthritis (HOA). Each object was instrumented with a motion sensor and moved in concert with a computer generated visual target. Self-reported joint pain and stiffness levels were recorded before and after each task. Task performance was determined by comparing the object movement with the computer target motion. This was correlated with grip strength, nine hole peg test, Disabilities of Arm, Shoulder, and Hand (DASH) questionnaire, and the Health Assessment Questionnaire (HAQ) scores.

Results: The test protocol indicated moderate to high test-retest reliability of performance measures for three manipulation tasks, intraclass correlation coefficients (ICCs) ranging between 0.5 to 0.84, p<0.05. Strength of association between task performance measures with self- reported activity/participation composite scores was low to moderate (Spearman rho <0.7). Low correlations (Spearman rho < 0.4) were observed between task performance measures and grip strength; and between three objects' performance measures. Significant reduction in pain and joint stiffness (p<0.05) was observed after performing each task.

Conclusion: The study presents initial evidence on the test retest reliability and convergent validity of a computer based hand function assessment protocol in people with rheumatoid arthritis or hand osteoarthritis. The novel tool objectively measures overall task performance during a variety of object manipulation tasks done by tracking a computer based visual target. This allows an innovative method of assessing performance than considering the time taken to complete a task or relying on subjective measures of self-reports on a limited range of objects and tasks covered. In addition, joint pain and stiffness levels before and after a manipulation task are tracked, which is lacking in other hand outcome measures. Performance measures during a broad range of object manipulation tasks relate to many activities relevant to life role participation. Therefore, task performance evaluation of common objects, utensils, or tools would be more valuable to gauge the difficulties encountered in daily life by people with arthritis. Future studies should consider a few revisions of the present protocol and evaluate a number of different objects targeting strength, fine, and gross dexterity based tasks for a broader application of the tool in arthritis populations.

No MeSH data available.


Related in: MedlinePlus

A. Pre/post pain in each task. The box and whisker plot shows pain scores for each task. The Y-axis represents the pain scores on(0-10) scale. The upper and lower parts of the boxes represent the upper and lower quartiles and the median is presented as the middle line.The upper and lower whiskers are the maximum and minimum values, * significance p<0.05. B. Pre/post stiffness in each task. The boxand whisker plot shows stiffness scores for each task. The Y-axis represents the stiffness scores on (0-10) scale. The upper and lower parts ofthe boxes represent the upper and lower quartiles and the median is presented as the middle line. The upper and lower whiskers are themaximum and minimum values, *significance p<0.05.
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Figure 3: A. Pre/post pain in each task. The box and whisker plot shows pain scores for each task. The Y-axis represents the pain scores on(0-10) scale. The upper and lower parts of the boxes represent the upper and lower quartiles and the median is presented as the middle line.The upper and lower whiskers are the maximum and minimum values, * significance p<0.05. B. Pre/post stiffness in each task. The boxand whisker plot shows stiffness scores for each task. The Y-axis represents the stiffness scores on (0-10) scale. The upper and lower parts ofthe boxes represent the upper and lower quartiles and the median is presented as the middle line. The upper and lower whiskers are themaximum and minimum values, *significance p<0.05.

Mentions: Fig. (3A, 3B) presents the box and whisker plots for group median and Interquartile range (IQR) for pain and stiffness scores reported before and after each task. There was significant reduction in pain and stiffness levels after each task in both test sessions (p<0.05).


Test-retest reliability and convergent validity of a computer based hand function test protocol in people with arthritis.

Srikesavan CS, Shay B, Szturm T - Open Orthop J (2015)

A. Pre/post pain in each task. The box and whisker plot shows pain scores for each task. The Y-axis represents the pain scores on(0-10) scale. The upper and lower parts of the boxes represent the upper and lower quartiles and the median is presented as the middle line.The upper and lower whiskers are the maximum and minimum values, * significance p<0.05. B. Pre/post stiffness in each task. The boxand whisker plot shows stiffness scores for each task. The Y-axis represents the stiffness scores on (0-10) scale. The upper and lower parts ofthe boxes represent the upper and lower quartiles and the median is presented as the middle line. The upper and lower whiskers are themaximum and minimum values, *significance p<0.05.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384228&req=5

Figure 3: A. Pre/post pain in each task. The box and whisker plot shows pain scores for each task. The Y-axis represents the pain scores on(0-10) scale. The upper and lower parts of the boxes represent the upper and lower quartiles and the median is presented as the middle line.The upper and lower whiskers are the maximum and minimum values, * significance p<0.05. B. Pre/post stiffness in each task. The boxand whisker plot shows stiffness scores for each task. The Y-axis represents the stiffness scores on (0-10) scale. The upper and lower parts ofthe boxes represent the upper and lower quartiles and the median is presented as the middle line. The upper and lower whiskers are themaximum and minimum values, *significance p<0.05.
Mentions: Fig. (3A, 3B) presents the box and whisker plots for group median and Interquartile range (IQR) for pain and stiffness scores reported before and after each task. There was significant reduction in pain and stiffness levels after each task in both test sessions (p<0.05).

Bottom Line: Self-reported joint pain and stiffness levels were recorded before and after each task.Significant reduction in pain and joint stiffness (p<0.05) was observed after performing each task.This allows an innovative method of assessing performance than considering the time taken to complete a task or relying on subjective measures of self-reports on a limited range of objects and tasks covered.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Graduate Studies, University of Manitoba, Winnipeg, Canada.

ABSTRACT

Objectives: A computer based hand function assessment tool has been developed to provide a standardized method for quantifying task performance during manipulations of common objects/tools/utensils with diverse physical properties and grip/grasp requirements for handling. The study objectives were to determine test-retest reliability and convergent validity of the test protocol in people with arthritis.

Methods: Three different object manipulation tasks were evaluated twice in forty people with rheumatoid arthritis (RA) or hand osteoarthritis (HOA). Each object was instrumented with a motion sensor and moved in concert with a computer generated visual target. Self-reported joint pain and stiffness levels were recorded before and after each task. Task performance was determined by comparing the object movement with the computer target motion. This was correlated with grip strength, nine hole peg test, Disabilities of Arm, Shoulder, and Hand (DASH) questionnaire, and the Health Assessment Questionnaire (HAQ) scores.

Results: The test protocol indicated moderate to high test-retest reliability of performance measures for three manipulation tasks, intraclass correlation coefficients (ICCs) ranging between 0.5 to 0.84, p<0.05. Strength of association between task performance measures with self- reported activity/participation composite scores was low to moderate (Spearman rho <0.7). Low correlations (Spearman rho < 0.4) were observed between task performance measures and grip strength; and between three objects' performance measures. Significant reduction in pain and joint stiffness (p<0.05) was observed after performing each task.

Conclusion: The study presents initial evidence on the test retest reliability and convergent validity of a computer based hand function assessment protocol in people with rheumatoid arthritis or hand osteoarthritis. The novel tool objectively measures overall task performance during a variety of object manipulation tasks done by tracking a computer based visual target. This allows an innovative method of assessing performance than considering the time taken to complete a task or relying on subjective measures of self-reports on a limited range of objects and tasks covered. In addition, joint pain and stiffness levels before and after a manipulation task are tracked, which is lacking in other hand outcome measures. Performance measures during a broad range of object manipulation tasks relate to many activities relevant to life role participation. Therefore, task performance evaluation of common objects, utensils, or tools would be more valuable to gauge the difficulties encountered in daily life by people with arthritis. Future studies should consider a few revisions of the present protocol and evaluate a number of different objects targeting strength, fine, and gross dexterity based tasks for a broader application of the tool in arthritis populations.

No MeSH data available.


Related in: MedlinePlus