Reliability and Validity of the Belt-Stabilized Handheld Dynamometer in Hip- and Knee-Strength Tests

Martins, Jaqueline; Silva, Janaina Rodrigues da; Silva, Marcelo Rodrigues Barbosa da; Bevilaqua-Grossi, Débora

doi:10.4085/1062-6050-52.6.04

Cited by 96 publications

(93 citation statements)

References 33 publications

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“…The hand-held dynamometer is a valid method when it is stabilized by a belt, and although these devices do not yield the same measures as isokinetic dynamometers, the values for hip muscle groups are correlated [36]. Thus, we chose to use a digital dynamometer stabilized by a brace to measure of the strength of the gluteus medius muscle.…”

Section: Discussionmentioning

confidence: 99%

Comparison of gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

Fenato

Araujo

Guimarães

2020

Preprint

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Background: The hip abductor muscles, primarily the gluteus medius, play an important role in stabilizing the pelvis during gait. Gluteus medius weakness is associated with biomechanical changes and musculoskeletal disorders. Obese individuals can have great difficulty maintaining abductor muscular function due to being overweight and possibly experiencing a decrease in muscle mass. However, it is still unclear whether the musculature of obese individuals can compensate for these changes. Therefore, the aim of this study was to compare gluteus medius strength between obese and normal-weight individuals using a digital hand-held dynamometer.Methods: Twenty-five obese (BMI > 35 kg/m2) participants were matched for sex, age, and height with normal-weight individuals. Gluteus medius strength was measured by a single examiner using a belt-stabilized hand-held digital dynamometer placed on the knee of the individuals positioned in lateral decubitus. Three measurements were recorded with rest intervals, and only the highest value measured for each limb was used for analysis. The differences between pairs were calculated, and the normality of the data was assessed using the Shapiro-Wilk test (p < 0.05). The matrices of the variables were standardized and analysed using principal component analysis (PCA).Results: For the strength variables (Newtons) on both sides, no significant differences were detected between the groups (p > 0.05). However, significant differences were detected in these variables between the groups (p < 0.05) when the measurements were normalized to body weight (Newtons/kilograms). PCA indicated that both the absolute and normalized values of strength are lower in obese than in normal-weight individuals.Conclusions: These findings indicate that obese individuals have the same or less strength (PCA) to move more mass, which may suggest a relative weakness that induces functional limitations.Trial registration: The study was approved by the UNIOESTE Human Research Ethics Committee (#1.180.202) in July 2015.

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Section: Discussionmentioning

confidence: 99%

Comparison of gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

Fenato

Araujo

Guimarães

2020

Preprint

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“…Subjects completed three trials per leg, alternating legs, and allowing at least 30 seconds of rest between trials. This method of strength testing has demonstrated high reliability (ICC = 0.91-0.94) in a previous study (Martins et al, 2017). Following these measurements, subjects' vertical jump, broad jump, and timed single-leg bridge measurements were taken.…”

Section: Methodsmentioning

confidence: 96%

Peer Review #2 of "The effects of gluteal squeezes compared to bilateral bridges on gluteal strength, power, endurance, and girth (v0.1)"

2019

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Background. Hip extension weakness is correlated with low back, hip, and knee pathology. Isometric gluteal squeezes have been shown to elicit high electromyographic gluteal activity. However, there is little research regarding the specific effects of isometric gluteal squeezes on hip strength and functional outcomes. The purpose of this study was to identify the effects of gluteal squeezes on hip extension strength, vertical jump, broad jump, single-leg bridge endurance, and gluteal girth compared to bilateral gluteal bridging. Methods. Thirty-two healthy university students (mean age 23.28 ± 2.15 years) were randomly assigned to perform either gluteal squeezes or bilateral bridges daily. Subjects were tested at baseline and after eight weeks of training. Subjects' hip extension strength, vertical jump, broad jump, and singleleg bridge endurance, and gluteal girth were tested. Results. No statistically significant differences were found between the bridge and squeeze groups after eight weeks of training. Both groups significantly improved hip extension strength bilaterally (p = 0.000-0.011). The squeeze group significantly increased gluteal girth at the level of the greater trochanter (p = 0.007), but no significant girth increase was seen in the bridge group (p = 0.742). Although increases were seen in both groups for the endurance and jump tasks, no statistically significant changes occurred for those outcomes. All outcome measurements demonstrated high reliability (ICC = 0.93-0.99). Conclusion. Gluteal squeezes were as effective as bilateral bridges for increasing hip extension strength. Gluteal squeezes also significantly increased girth at the level of the greater trochanter. These results provide clinical and aesthetic reasons to perform gluteal squeezes.

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“…It measures strength in an objective, precise, and sensitive way [35]. The hand-held dynamometer is a validating method when its stabilization is performed with a belt, and although they did not agree with those from the isokinetic dynamometer, the values are correlated for the hip-muscle groups [36].…”

Section: Introductionmentioning

confidence: 98%

Comparison of the gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

Fenato

Araujo

Guimarães

2020

Preprint

View full text Add to dashboard Cite

Background: The hip abductor muscles play an important role in stabilizing the pelvis during gait, with its main function being performed by the gluteus medius. Gluteus medius insufficiency is associated with biomechanical alterations and musculoskeletal disorders. Due to being overweight and a possible muscle mass decrease, maintaining the abductor muscular function can be a great challenge for the obese. However, it is still unclear whether the musculature of obese individuals manages to compensate for these alterations. Therefore, the aim of this study was to compare the gluteus medius strength between obese and normal weight individuals using a digital hand-held dynamometer.Methods: Twenty-five obese (BMI > 35 kg / m2) participated in the study, being matched in gender, age, and height with normal weight individuals. The gluteus medius strength was measured by a single examiner using a belt-stabilized hand-held digital dynamometer on the knee of individuals positioned in lateral decubitus. Three measurements were recorded with rest intervals, considering only the highest value measured for each limb for analysis. The difference between pairs was calculated and the data distribution pattern was assessed using the Shapiro-Wilk test (p < 0.05), and the matrices of the variables were standardized and analyzed using the principal component analysis (PCA).Results: For the strength variables (Newtons) on both sides, no statistical differences were detected between the groups (p > 0.05). However, statistical differences were detected in these variables between the groups (p < 0.05) when normalizing the measurements in relation to individuals' weights (Newtons / kilograms). The PCA indicates that both strength in absolute values and normalized by weight are reduced in obese individuals.Conclusions: These findings indicate that obese individuals have the same or lower strength (PCA) to move more mass, which may suggest a relative weakness that induces functional limitation.Trial registration: The study was approved by the UNIOESTE Human Research Ethics Committee (#1.180.202) in July 2015.

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Reliability and Validity of the Belt-Stabilized Handheld Dynamometer in Hip- and Knee-Strength Tests

Abstract: The belt-stabilized HHD measurements were reliable, and although they did not agree with those from the isokinetic dynamometer, the values were correlated for the hip- and knee-muscle groups.

Cited by 96 publications

References 33 publications

Comparison of gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

Comparison of gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

Peer Review #2 of "The effects of gluteal squeezes compared to bilateral bridges on gluteal strength, power, endurance, and girth (v0.1)"

Comparison of the gluteus medius strength between obese and eutrophic individuals: a cross-sectional study

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