Background/aim: Grip strength is useful in clinical practice for the assessment of disease and/or rehabilitation progression. Brief maximal gripping is seldom required in everyday occupations, with repeated or sustained gripping at sub-maximal power more commonly involved. It has been proposed that assessment of both maximal hand-grip force and endurance is utilised. While the suitability of maximal contraction measures has been clearly established, the reliability and validity of other hand-grip indices have not been investigated. This study examined the reliability of various hand-grip indices and their validity in relation to distance walked during the six-minute walk test, a standardised exercise capacity test.
Methods: Subjects undertook static sub-maximal (50%) and maximal force contraction hand-grip testing from which various indices were derived, and six-minute walk testing from which distance walked was determined. Testing was repeated on three separate occasions for determination of test-retest reliability.
Results: Pre- and post-fatigue maximal contraction measurements demonstrated excellent test-retest reliability and validity. Conversely, other hand-grip indices were shown to be unreliable and exhibited no relationship with distance walked and hence concurrent validity could not be established.
Conclusions: Based on the results of this study, it is recommended that pre- and post-fatigue maximal contraction may be utilised for the assessment of client ability and progression due to their established validity and test-retest reliability. However, previously proposed measures of fatigue such as endurance (duration of sustained contraction), Strength Decrement Index and work performed (function of endurance and force of contraction) are unreliable and invalid and may have limited use in clinical practice.
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http://dx.doi.org/10.1111/j.1440-1630.2010.00888.x | DOI Listing |
J Affect Disord
January 2025
Lusófona University, HEI-Lab: Digital Human-Environment Interaction Labs, Portugal. Electronic address:
Assessing Fear of Birth Scale's (FOBS) psychometric properties in the perinatal period using multicountry data is a step toward effectively screen clinically significant fear of childbirth (FOC) in maternal healthcare settings. FOBS psychometric properties were analyzed in women in the perinatal period using data from Australia, Germany, Lithuania, Poland, and Portugal. FOBS' reliability, criterion (known group and convergent), concurrent, predictive, and clinical validity were analyzed.
View Article and Find Full Text PDFJ Glob Antimicrob Resist
January 2025
Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands. Electronic address:
Piperacillin/tazobactam antimicrobial susceptibility testing (AST) against Enterobacterales can be challenging. The aim of this study was to assess the reproducibility of various automated (Vitek®2) and non-automated AST methods (broth microdilution (BMD), minimum inhibitory concentration (MIC) test strip, and disk diffusion) for piperacillin/tazobactam in 'challenging' E. coli isolates.
View Article and Find Full Text PDFTop Stroke Rehabil
January 2025
Department of Medical-Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: The successful transition of stroke patients from hospital to home relies on the preparedness of caregivers. Assessing this preparedness is crucial, but existing tools need adaptation and validation for Iranian caregivers.
Objectives: This study aimed to translate, culturally adapt, and validate the Persian version of the "Preparedness Assessment for the Transition Home After Stroke" (PATH-s) for use among Iranian caregivers of stroke survivors.
Br J Soc Psychol
January 2025
School of Psychology, The University of Adelaide, Adelaide, Australia.
This article reports the development and validation of the Episodic Empowerment Scale (EES): A manipulation check designed to measure a momentary psychological state. In Study 1, participants (n = 125) completed a selection of candidate items after being exposed to a low- or high-power manipulation. Exploratory factor analysis was used to reduce the number of items to a brief five-item measure.
View Article and Find Full Text PDFPhysiother Theory Pract
January 2025
Department of Orthopaedics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Introduction: Standing balance is essential for physical functioning. Therefore, improving balance control is a key priority in the management of knee osteoarthritis (OA), underscoring the importance of accurately assessing standing balance.
Purpose: To assess reliability, construct validity and responsiveness of common clinical balance tests, including Step Test, Single-Leg Stance Test, and Functional Reach Test, in patients with knee OA.
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