Contribution of hip abductor–adductor muscles on static and dynamic balance of community-dwelling older adults

Porto, Jaqueline Mello; Júnior, Renato Campos Freire; Bocarde, Larissa; Fernandes, Júlia Adorno; Marques, Nise Ribeiro; Rodrigues, Natália Camargo; Abreu, Daniela Cristina Carvalho de

doi:10.1007/s40520-018-1025-7

Cited by 39 publications

(23 citation statements)

References 38 publications

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“…The clinician also notes severe weakness in the ipsilateral hip abductor muscles during the OLB trial if the pelvis significantly drops on the contralateral side (positive Trendelenburg sign), or the trunk is visibly shifted toward the ipsilateral hip to reduce the hip abduction moment demand (negative Trendelenburg sign) [5]. In some studies a weak but significant correlation between UST and maximum hip abduction strength has been noted [6] and this relationship strengthens with age and peripheral neuropathy (PN) [7]. These results suggest a threshold may exist for the hip abduction strength in order for a patient to perform well in the OLB test.…”

Section: Introductionmentioning

confidence: 99%

On the importance of the hip abductors during a clinical one legged balance test: A theoretical study

Shahshahani

Ashton‐Miller

2020

PLoS ONE

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Background The ability to balance on one foot for a certain time is a widely used clinical test to assess the effects of age and diseases like peripheral neuropathy on balance. While state-space methods have been used to explore the mechanical demands and achievable accelerations for balancing on two feet in the sagittal plane, less is known about the requirements for sustaining one legged balance (OLB) in the frontal plane. Research question While most studies have focused on ankle function in OLB, can age and/or disease-related decreases in maximum hip abduction strength also affect OLB ability? Methods A two-link frontal plane state space model was used to define and explore the ‘feasible balance region’ which helps reveal the requirements for maintaining and restoring OLB, given the adverse effects of age and peripheral neuropathy on maximum hip and ankle strengths. Results Maintaining quasistatic OLB required 50%-106% of the maximum hip abduction strength in young and older adults, and older patients with peripheral neuropathy. Effectiveness of a ‘hip strategy’ in recovering OLB was heavily dependent on the maximum hip abduction strength, and for healthy older women was as important as ankle strength. Natural reductions of strength due to healthy aging did not show a meaningful reduction in meeting the strength requirement of clinical OLB. However deficits in hip strength typical of patients with peripheral neuropathy did adversely affect both quasistatic OLB and recoverable OLB states. Significance The importance of hip muscle strength has been underappreciated in the clinical OLB test. This is partly because the passive tissues of the hip joint can mask moderate deficits in hip abduction strength until it is needed for recovering OLB. Adding a follow up OLB test with a slightly raised pelvis would be a simple way to check for adequate hip abductor muscle strength.

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Section: Introductionmentioning

confidence: 99%

On the importance of the hip abductors during a clinical one legged balance test: A theoretical study

Shahshahani

Ashton‐Miller

2020

PLoS ONE

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“…For example, compared to other muscles of the lower limbs, the gluteal musculature may be particularly susceptible to age-related alterations in muscle composition and performance (22, 24). Considering that hip abductor-adductor (AB-AD) muscles play a fundamental role in controlling body center of mass (CoM) motion in the medio-lateral (M-L) direction during standing, stepping, and walking (4, 39, 46, 50, 51), reduced AB-AD power generation may limit M-L balance and mobility functions that often require rapid, forceful, and controlled movements, such as protective steps in response to an unexpected balance perturbation.…”

Section: Introductionmentioning

confidence: 99%

Low-dose hip abductor-adductor power training improves neuromechanical weight-transfer control during lateral balance recovery in older adults

Inácio¹,

Creath

Rogers

2018

Clinical Biomechanics

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Background Age-related neuromuscular changes in the hip abductor-adductor muscles lead to reduced performance, especially in the rate of force development and power production. These alterations may impair weight transfer control and lateral balance recovery through protective stepping. This study compared the effects of eight weeks of low-dose hip abductor-adductor power and strength training on the performance of isometric maximal voluntary contractions, and lateral balance recovery at different initial weight-bearing conditions in older individuals. Methods Eighteen healthy older adults (71.3 (0.9)yrs) underwent eight weeks of low-dose hip abductor-adductor exercise training involving either power training (n=10) or lower velocity strength training (n=8). Outcomes were assessed for hip abductor-adductor isometric maximal voluntary contractions and lateral waist-pull balance perturbations with three initial stepping limb-load conditions (50%, 65%, or 80% body mass). Findings Power training increased isometric maximal voluntary contractions abductor-adductor peak torque (14%–18%, p<0.05), rate of torque development (31%–39%, p<0.05) and rate of neuromuscular activation (37%–81%, p<0.05). During lateral balance recovery, power training increased the incidence of stabilizing single lateral steps at 80% body mass pre-load (by 43%, p<0.05), reduced step lift-off time by 27ms at 50% body mass (p<0.05) and decreased downward momentum of the body center of mass at 80% body mass (32%, p<0.05). Power training also increased in task hip abductor net joint torque (49%–61%, p<0.05), power (21%–54%, p<0.05), and abductor-adductor rate of neuromuscular activation (17%–62%, p<0.05). Interpretation Low-dose hip abductor-adductor power training was more effective than strength training at eliciting improvements in maximal neuromuscular performance and enhanced mediolateral balance recovery.

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“…O PT dos abdutores de quadril apresentou a segunda menor média entre os músculos avaliados neste trabalho. Apesar de não haver ainda um valor de referência para idosos, determinado pela literatura, observamos em outros estudos que a média do PT destes músculos foi inferior a outros grupos musculares na população idosa (PORTO et al 2019;MORCELLI et al, 2014). Uma vez que parece haver um declínio da força dos músculos abdutores de quadril nos idosos, inserir exercícios que ativem e fortaleçam essa musculatura pode ser eficaz não somente para a melhora da funcionalidade e equilíbrio (PORTO et al, 2019) como também pode ser um fator protetor contra a perda de massa óssea no colo femoral.…”

Section: Discussionunclassified

A associação da força muscular do quadril e joelho na densidade mineral óssea do colo do fêmur em mulheres idosas

Capato¹

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Contribution of hip abductor–adductor muscles on static and dynamic balance of community-dwelling older adults

Abstract: The findings of the present study are relevant, because if deficits in balance and functionality in older adults can be linked to a decline in maximum muscle strength of hip abductors, this parameter can be treated to maintain independence in older adults for as long as possible.

Cited by 39 publications

References 38 publications

On the importance of the hip abductors during a clinical one legged balance test: A theoretical study

On the importance of the hip abductors during a clinical one legged balance test: A theoretical study

Low-dose hip abductor-adductor power training improves neuromechanical weight-transfer control during lateral balance recovery in older adults

A associação da força muscular do quadril e joelho na densidade mineral óssea do colo do fêmur em mulheres idosas

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