Concurrent validity of a fixated hand-held dynamometer for measuring isometric knee extension strength in adults with congenital heart disease

Nordin, Fredrik; Nyberg, André; Sandberg, Camilla

doi:10.1080/21679169.2019.1573920

Cited by 3 publications

(2 citation statements)

References 41 publications

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“…They are easy to use, cost-effective, and provide reliable and valid measures of strength. [60][61][62][63][64][65] They limit the margin of user error compared to HHD. Although these methods are well suited to both clinical and research environments, using minimal space and requiring minimal set-up time, they are unable to assess dynamic movement.…”

Section: Strengthmentioning

confidence: 99%

Skeletal muscle and childhood cancer: Where are we now and where we go from here

2021

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Skeletal muscle (muscle) is essential for physical health and for metabolic integrity, with sarcopenia (progressive muscle mass loss and weakness), a precursor of aging and chronic disease. Loss of lean mass and muscle quality (force generation per unit of muscle) in the general population are associated with fatigue, weakness, and slowed walking speed, eventually interfering with the ability to maintain physical independence, and impacting participation in social roles and quality of life. Muscle mass and strength impairments are also documented during childhood cancer treatment, which often persist into adult survivorship, and contribute to an aging phenotype in this vulnerable population.Although several treatment exposures appear to confer increased risk for loss of mass and strength that persists after therapy, the pathophysiology responsible for poor muscle quantity and quality is not well understood in the childhood cancer survivor population. This is partly due to limited access to both pediatric and adult survivor muscle tissue samples, and to difficulties surrounding noninvasive investigative approaches for muscle assessment. Because muscle accounts for just under half of the body's mass and is essential for movement, metabolism, and metabolic health, understanding mechanisms of injury responsible for both initial and persistent dysfunction is important and will provide a foundation for intervention. The purpose of this review is to provide an overview of the available evidence describing associations between childhood cancer, its treatment, and muscle outcomes, identifying gaps in current knowledge. K E Y W O R D Schildhood cancer, muscle fitness, muscle health, muscle mass, muscle outcomes, muscle quality, skeletal muscle INTRODUCTIONIncreased survival rates for childhood cancer are a direct reflection of major therapeutic and diagnostic advancesThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Strengthmentioning

confidence: 99%

Skeletal muscle and childhood cancer: Where are we now and where we go from here

2021

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“…Further, the use of dynamometry to assess isometric knee extension muscle strength is considered as reliable and valid; therefore, the results are considered appropriate. [23][24][25] A limitation is that the quality aspects of testing isometric muscle strength in plantar flexion with isokinetic dynamometry has not been evaluated previously for children with CHD. However, the test procedure was standardised and was properly performed by all participants according to our observation.…”

Section: Limitationsmentioning

confidence: 99%

Impaired knee extension muscle strength in adolescents but not in children with Fontan circulation

et al. 2020

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Abstract Introduction: Impaired isometric muscle strength was previously reported in adults with Fontan circulation. However, it is unclear if this impairment is present in children and adolescents with Fontan circulation. We investigated isometric muscle strength of the lower limb in patients (6–18 years) with Fontan circulation in comparison with healthy controls. Method: In this cross-sectional study, 43 patients (6–18 years) with Fontan circulation and 43 age- and sex-matched controls were included. Isometric knee extension and plantar flexion muscle strength were assessed using dynamometry (Newton, N). Lean mass of the legs was assessed with dual-energy X-ray absorptiometry. Analyses were performed on group level (n = 43), and for subgroups that included children aged 6–12 years (n = 18) and adolescents aged 13–18 years (n = 25). Results: On group level, the patients with Fontan circulation had impaired isometric knee extension strength in comparison with the controls (p = 0.03). In subgroup analyses, impaired isometric knee extension strength was present in the adolescents (p = 0.009) but not in the children groups. For plantar flexion, there was no difference between patients and controls. There was no difference in lean mass between patients and controls (9.6 ± 4.3 kg vs. 10.8 ± 5.6 kg, p = 0.31). However, the lean mass was highly correlated to isometric knee extension strength (patients r = 0.89, controls r = 0.96, p < 0.001) and isometric plantar flexion strength (patients r = 0.7, controls r = 0.81, p < 0.001). Conclusion: The finding of impaired isometric knee extension muscle strength in adolescents (13–18 years) with Fontan circulation and no corresponding impairment in the children group (6–12 years) could imply that isometric muscle strength gets more impaired with age.

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Establishing the reliability of instrumented trunk impairment assessment methods to enable evidence-based classification in Para swimming

Smith

Connick

Beckman

et al. 2021

Journal of Sports Sciences

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Concurrent validity of a fixated hand-held dynamometer for measuring isometric knee extension strength in adults with congenital heart disease

Cited by 3 publications

References 41 publications

Skeletal muscle and childhood cancer: Where are we now and where we go from here

Skeletal muscle and childhood cancer: Where are we now and where we go from here

Impaired knee extension muscle strength in adolescents but not in children with Fontan circulation

Establishing the reliability of instrumented trunk impairment assessment methods to enable evidence-based classification in Para swimming

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