A laboratory and clinical study of pneumatic 'grip strength' devices

The efficacy of splinting for lateral epicondylitis: a systematic review

To determine the efficacy of using splinting as a treatment for lateral epicondylitis (LE), a systematic review of the literature was conducted on Medline, Cumulative Index to Nursing and Allied Health Literature (CINAHL), EMBASE, PEDro, and Cochrane databases using pertinent key words and phrases. Hand searches of article references were also used to ensure that as many relevant articles as possible were identified. Searches were limited to articles published in English. Articles that did not involve splinting (or terminology derivative thereof) as treatment intervention for LE were excluded. From 98 potential articles, 58 were considered strong inclusion candidates. These articles were copied and further triaged according to predefined criteria, resulting in 22 articles that were numbered randomly and blinded. Three reviewers appraised these articles, eliminating 11 of the articles because they did not meet essential criteria of randomization, control group, and/or inferential statistical analysis. Using MacDermid quality scores, the 11 remaining articles were rated by three reviewers. Consensus between the three reviewers was achieved for all quality scores for all 11 articles included in the review. Adjusted quality scores ranged from 44.5 to 16.5 with a mean of 26.3 points. For accurate comparison and consistency of terminology, splints described in the included articles were first classified according to the ASHT Splint Classification, expanded and refined version, and next according to their inherent material properties. Six splints in five classification categories were identified. Discussion of the results from the 11 included studies was organized according to splint category and further separated into strength, pain, and load applied sections. This review identified one Sackett level 1b study and ten Sackett level 2b studies that offer early positive, but not conclusive, support for the effectiveness of splinting lateral epicondylitis. None of the reviewed studies received a perfect quality score, and the wide range of quality scores attests to the fact that considerable improvement of future studies is essential.

Identification of low-effort patients through dynamometry

In recent years researchers have devised a number of methods to detect patients who purposely exert low effort during grip evaluations. This study further defines the five-rung grip test introduced by Stokes and subsequently challenged by Niebuhr and Marion. New data are presented on the rapid exchange grip test. Data were collected on four groups of subjects (sincere normals, normals asked to feign weak grip, patients thought to be sincere, and patients suspected of low effort) using both tests. In calculating the standard deviation of the plotted line of the five-rung grip test, group membership (sincere or low effort) can be predicted. No statistical difference between peak scores on five-rung and rapid exchange grip tests in sincere subjects was found. A statistical difference between peak scores in the low-effort groups was shown. A model has been developed that can be used to categorize patients into low effort or sincere groups.

Exercise tests as outcome measures

Outcome assessments of physical fitness attributes such as endurance, strength, and flexibility are not measured routinely in clinical trials or clinical practice in either adults or children with rheumatic diseases. Although physical fitness is not a measure of disease severity, it can be a critical indicator of capacity to function. Adequate fitness is necessary for the performance of positive health behaviors that enhance health status and wellness in spite of chronic disease. The purpose of this paper is to explore the conceptual, methodologic, and analytic issues related to the use of exercise tests as outcome measurements of physical functioning in persons with rheumatic disease.