Comparison of two incremental protocols for evaluation of hip extension

Campos, Christian T.; Chirosa, Luís Javier; Mayorga, Daniel Jeréz; Ríos, Ignacio Chirosa; Martínez‐Salazar, Cristian; Beraldo, Pedro Cesar

doi:10.1590/1980-5918.030.001.ao14

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…Any modification to this starting point could alter the reliability of the STS. In parallel and to maintain the reliability of the STS, it is important to consider the grip point, as it has been shown that distal and multi-joint grips have a lower ICC compared to proximal grips (ICC = 0.33) using a FEMD [ 50 ]. In the present study, the grip point was at the xiphoid process level; at this point, with the help of Velcro, it was anchored to the FEMD tension cable ( Figure 1 ); this allowed fluid and natural execution of the movement, maintaining stable repeatability in all the repetitions.…”

Section: Discussionmentioning

confidence: 99%

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

Jerez‐Mayorga

Ojeda

Chirosa

et al. 2021

IJERPH

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Background: The purpose of this study was to determine the reliability for the strength and movement velocity of the concentric phase from the five Sit-to-Stand (5STS), using three incremental loads measured by a functional electromechanical dynamometer (FEMD) in healthy young adults. Methods: The average and peak strength and velocity values of sixteen healthy adults (mean ± standard deviation (SD): age = 22.81 ± 2.13 years) were recorded at 5, 10 and 15 kg. To evaluate the reliability of FEMD, the intraclass correlation coefficient (ICC), standard error of measurement (SEM) and coefficient of variation (CV) were obtained. Results: Reliability was high for the 10 kg (CV range: 3.70–4.18%, ICC range: 0.95–0.98) and 15 kg conditions (CV range: 1.64–3.02%, ICC: 0.99) at average and peak strength, and reliability was high for the 5 kg (CV range: 1.71–2.84%, ICC range: 0.96–0.99), 10 kg (CV range: 0.74–1.84%, ICC range: 0.99–1.00) and 15 kg conditions (CV range: 0.79–3.11%, ICC range: 0.99–1.00) at average and peak velocity. Conclusions: The findings of this study demonstrate that FEMD is a reliable instrument to measure the average and peak strength and velocity values during the five STS in healthy young adults.

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Section: Discussionmentioning

confidence: 99%

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

Jerez‐Mayorga

Ojeda

Chirosa

et al. 2021

IJERPH

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“…Participants were allowed to rest for 10 min between each assessed position, and the order in which positions were evaluated was random. The strength exerted for each maximum isometric contraction was measured using the Haefni Health v.1.0 electromechanical dynamometer (iVolution R&D, Granada, Spain), which has been validated for this use [ 40 , 41 ]. During task execution, subjects were motivated to exert maximum force by the evaluator saying: “let’s go, let’s go, come on, come on.”…”

Section: Methodsmentioning

confidence: 99%

“…To this end, a new dynamometric device was recently designed for the assessment of functional tasks. This instrument allows evaluating movements in different planes and at different angles through a pulley system, which permits specific, natural movements [ 40 , 41 ]. This so-termed functional electromechanical dynamometer can be used for static and dynamic assessments, including isokinetic evaluations in different muscle groups [ 41 ].…”

Section: Introductionmentioning

confidence: 99%

Validity and reliability of evaluating hip abductor strength using different normalization methods in a functional electromechanical device

et al. 2018

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The hip abductor muscles are vitally important for pelvis stability, and common strength deficits can negatively affect functionality. The muscle strength can be measured using different dynamometers and be evaluated in three positions (side-lying, standing, and supine). Obtained strength data can be expressed in different ways, with data normalization providing more objective and comparable results. The aim of this study was to establish the validity and reliability of three protocols in evaluating the isometric strength of the hip abductor muscles. A new functional electromechanical dynamometer assessed strength in three positions, with findings subjected to three data normalization methods. In two identical sessions, the hip abductor strengths of 29 subjects were recorded in the side-lying, standing, and supine positions. Peak force was recorded in absolute terms and normalized against body mass, fat-free mass, and an allometric technique. The peak force recorded in the side-lying position was 30% and 27% higher than in the standing and supine positions, respectively, independent of data normalization methodology. High inter-protocol correlations were found (r: 0.72 to 0.98, p ≤ 0.001). The supine position with allometric data normalization had the highest test-retest reliability (0.94 intraclass correlation coefficient and 5.64% coefficient of variation). In contrast, the side-lying position with body mass data normalization had a 0.66 intraclass correlation coefficient and 9.8% coefficient of variation. In conclusion, the functional electromechanical dynamometer is a valid device for measuring isometric strength in the hip abductor muscles. The three assessed positions are reliable, although the supine position with allometric data normalization provided the best results.

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Comparison of two incremental protocols for evaluation of hip extension

Abstract: Introduction: The hip muscles play an important role in controlling the transverse and frontal plane of

Cited by 2 publications

References 29 publications

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

Test–Retest Reliability of Functional Electromechanical Dynamometer on Five Sit-to-Stand Measures in Healthy Young Adults

Validity and reliability of evaluating hip abductor strength using different normalization methods in a functional electromechanical device

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