scholarly journals Validity and Test-Retest Reliability of a Novel Push Low-Cost Hand-Held Dynamometer for Knee Strength Assessment During Different Force Ranges

2021 ◽  
Author(s):  
Maria de Cássia Macedo ◽  
Matheus Almeida Souza ◽  
Kariny Realino Ferreira ◽  
Laura Oliveira Campos ◽  
Igora Sérgio Oliveira Souza ◽  
...  
Keyword(s):  
Isometric Force ◽  
Low Cost ◽  
Knee Extension ◽  
Isometric Strength ◽  
Retest Reliability ◽  
Strength Assessment ◽  
Knee Strength ◽  
Effective Form ◽  
Test Retest Reliability ◽  
User Friendly

The objective was to assess the instrumental validity and the test-retest reliability of a low-cost hand-held push dynamometer adapted from a load-cell based hanging scale (tHHD) to collect compressive forces in different ranges of compressive forces. Three independent raters applied 50 pre-established compressions each on the tHHD centered on a force platform in 3 distinct ranges: ~70 N, ~160 N, ~250 N. Knee isometric strength was also assessed on 19 subjects in two sessions (48h apart) using the tHHD anchored by an inelastic adjustable strap. Knee extension and flexion were assessed with the participant seated on a chair with the feet resting on the floor, knees, and hips flexed at 90°. The isometric force peaks were recorded and compared. The ICC and the Cronbach’s α showed excellent consistency and agreement for both instrumental validity and test-retest reliability, as the correlation and determination coefficients. The SEM and the MDC analysis returned adequate low values with a coefficient of variation less than 5%. The Bland-Altman results showed consistency and high levels of agreement. The tHHD is a valid method to assess the knee isometric strength, showing portability, cost-effectiveness, and user-friendly interface to provide an effective form to assess the knee isometric strength.

scholarly journals Validity and Test-Retest Reliability of a Novel Push Low-Cost Hand-Held Dynamometer for Knee Strength Assessment during Different Force Ranges

Diagnostics ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 186
Author(s):  
Maria de Cássia Macedo ◽  
Matheus Almeida Souza ◽  
Kariny Realino Ferreira ◽  
Laura Oliveira Campos ◽  
Igor Sérgio Oliveira Souza ◽  
...  
Keyword(s):  
Isometric Force ◽  
Low Cost ◽  
Knee Extension ◽  
Isometric Strength ◽  
Retest Reliability ◽  
Strength Assessment ◽  
Knee Strength ◽  
Effective Form ◽  
Test Retest Reliability ◽  
User Friendly

The objective was to assess the instrumental validity and the test–retest reliability of a low-cost hand-held push dynamometer adapted from a load-cell based hanging scale (tHHD) to collect compressive forces in different ranges of compressive forces. Three independent raters applied 50 pre-established compressions each on the tHHD centered on a force platform in three distinct ranges: ~70 N, ~160 N, ~250 N. Knee isometric strength was also assessed on 19 subjects in two sessions (48 h apart) using the tHHD anchored by an inelastic adjustable strap. Knee extension and flexion were assessed with the participant seated on a chair with the feet resting on the floor, knees, and hips flexed at 90°. The isometric force peaks were recorded and compared. The ICC and the Cronbach’s α showed excellent consistency and agreement for both instrumental validity and test–retest reliability (range: 0.89–0.99), as the correlation and determination coefficients (range: 0.80–0.99). The SEM and the MDC analysis returned adequate low values with a coefficient of variation less than 5%. The Bland–Altman results showed consistency and high levels of agreement. The tHHD is a valid method to assess the knee isometric strength, showing portability, cost-effectiveness, and user-friendly interface to provide an effective form to assess the knee isometric strength.

Influence of Handgrip Stabilization During Isokinetic Knee Strength Assessment in Older Women

2020 ◽  
Vol 127 (4) ◽  
pp. 671-683
Author(s):  
João P. Nunes ◽  
Paolo M. Cunha ◽  
Jerry L. Mayhew ◽  
Alex S. Ribeiro ◽  
Paulo S. Junior ◽  
...  
Keyword(s):  
Older Women ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Knee Extension ◽  
Convenience Sample ◽  
Strength Assessment ◽  
Intraclass Correlation Coefficients ◽  
Knee Strength ◽  
Hands On ◽  
Angular Velocities

The present study aimed to evaluate the influence of holding the chair handles during the assessment of older women’s knee flexion and extension isokinetic and isometric strength. Of 57 older women (≥60 years) selected from a convenience sample for this research, 23 were randomly chosen to perform the tests twice for reliability analyses. Each participant performed maximal isokinetic knee extension and flexion at 60°/s and 180°/s angular velocities and isometric tests under two conditions: (a) holding the lateral handle of the chair (HOLD) and (b) supporting the hands on the shoulders with the arms crossed (i.e., not holding the handle [NHOLD]). Participants performed significantly better in the HOLD compared with the NHOLD condition. Slightly lower intraclass correlation coefficients (ICC = 0.870–0.956) were noted for the HOLD than for the NHOLD condition (ICC = 0.900–0.981) so that the HOLD performance on Days 1 and 2 was different on some measures. Owing to the higher reliability coefficients in the NHOLD condition, results suggest that, when assessing knee strength in older women, the evaluee should place their hands over their shoulders with arms crossed in front of the chest (NHOLD) to maximize assessment reliability (reproducibility of performance).

Test-Retest Reliability Of Knee Extension And Flexion Torque Steadiness

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S260
Author(s):  
John P. McCarthy ◽  
Mandie L. Granger ◽  
Blaire Dagostin ◽  
Dara S. Lowery ◽  
Tina J. Dube ◽  
...  
Keyword(s):  
Knee Extension ◽  
Retest Reliability ◽  
Test Retest Reliability

scholarly journals The reliability and validity of novel clinical strength measures of the upper body in older adults

Hand Therapy ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 130-138
Author(s):  
Hayley S Legg ◽  
Jeff Spindor ◽  
Reanne Dziendzielowski ◽  
Sarah Sharkey ◽  
Joel L Lanovaz ◽  
...  
Keyword(s):  
Older Adults ◽  
Upper Limb ◽  
Assessment Tools ◽  
Upper Body ◽  
Minimal Detectable Change ◽  
The Novel ◽  
Precision Error ◽  
Retest Reliability ◽  
Strength Assessment ◽  
Test Retest Reliability

Introduction Research investigating psychometric properties of multi-joint upper body strength assessment tools for older adults is limited. This study aimed to assess the test–retest reliability and concurrent validity of novel clinical strength measures assessing functional concentric and eccentric pushing activities compared to other more traditional upper limb strength measures. Methods Seventeen participants (6 males and 11 females; 71 ± 10 years) were tested two days apart, performing three maximal repetitions of the novel measurements: vertical push-off test and dynamometer-controlled concentric and eccentric single-arm press. Three maximal repetitions of hand-grip dynamometry and isometric hand-held dynamometry for shoulder flexion, shoulder abduction and elbow extension were also collected. Results For all measures, strong test–retest reliability was shown (all ICC > 0.90, p < 0.001), root-mean-squared coefficient of variation percentage: 5–13.6%; standard error of mean: 0.17–1.15 Kg; and minimal detectable change (90%): 2.1–9.9. There were good to high significant correlations between the novel and traditional strength measures (all r > 0.8, p < 0.001). Discussion The push-off test and dynamometer-controlled concentric and eccentric single-arm press are reliable and valid strength measures feasible for testing multi-joint functional upper limb strength assessment in older adults. Higher precision error compared to traditional uni-planar measures warrants caution when completing comparative clinical assessments over time.

scholarly journals Validation and Reliability of a Novel Test of Upper Body Isometric Strength

2015 ◽  
Vol 47 (1) ◽  
pp. 189-195 ◽  
Author(s):  
David Bellar ◽  
Lena Marcus ◽  
Lawrence W. Judge
Keyword(s):  
Bench Press ◽  
Isometric Force ◽  
Body Height ◽  
Isometric Strength ◽  
Upper Body ◽  
Outcome Variable ◽  
Good Reliability ◽  
Strength Assessment ◽  
College Age ◽  
Body Strength

AbstractThe purpose of the present investigation was to examine the association of a novel test of upper body isometric strength against a 1RM bench press measurement. Forty college age adults (n = 20 female, n = 20 male; age 22.8 ± 2.8 years; body height 171.6 ± 10.8 cm; body mass 73.5 ± 16.3 kg; body fat 23.1 ± 5.4%) volunteered for the present investigation. The participants reported to the lab on three occasions. The first visit included anthropometric measurements and familiarization with both the upper body isometric test and bench press exercise. The final visits were conducted in a randomized order, with one being a 1RM assessment on the bench press and the other consisting of three trials of the upper body isometric assessment. For the isometric test, participants were positioned in a “push-up” style position while tethered (stainless steel chain) to a load cell (high frequency) anchored to the ground. The peak isometric force was consistent across all three trials (ICC = 0.98) suggesting good reliability. Multiple regression analysis was completed with the predictors: peak isometric force, gender, against the outcome variable 1RM bench press. The analysis resulted in a significant model (r2 = 0.861, p≤0.001) with all predictor variables attaining significance in the model (p<0.05). Isometric peak strength had the greatest effect on the model (Beta = 5.19, p≤0.001). Results from this study suggest that the described isometric upper body strength assessment is likely a valid and reliable tool to determine strength. Further research is warranted to gather a larger pool of data in regard to this assessment.

Test-Retest Reliability of Isokinetic Knee Extension and Flexion

2007 ◽  
Vol 88 (5) ◽  
pp. 626-631 ◽  
Author(s):  
Gisela Sole ◽  
Jonas Hamrén ◽  
Stephan Milosavljevic ◽  
Helen Nicholson ◽  
S. John Sullivan
Keyword(s):  
Knee Extension ◽  
Retest Reliability ◽  
Test Retest Reliability
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