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

Inácio, Mário; Creath, Rob; Rogers, Mark W.

doi:10.1016/j.clinbiomech.2018.10.018

Cited by 19 publications

(10 citation statements)

References 59 publications

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“…All participants provided written informed consent, and the study was approved by the Institutional Review Board of the University of Maryland, Baltimore. As previously described ( Inacio et al, 2018 ), inclusion criteria included healthy, ambulatory older adults with a BMI of less than 35 kg/m 2 . Exclusion criteria included: cognitive impairment (Folstein Mini-Mental Score Exam < 24), sedative use, depression, or a clinically significant functional impairment related to a musculoskeletal, neurological, cardiopulmonary, or metabolic disorder.…”

Section: Methodsmentioning

confidence: 99%

Intramuscular Fat Influences Neuromuscular Activation of the Gluteus Medius in Older Adults

et al. 2020

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The amount of tissue between the muscle and surface electromyography (sEMG) electrode influences the sEMG signals. Increased intramuscular adipose tissue (IMAT) of the hip abductor muscles negatively impacts balance in older individuals, but it is unknown if this is related to the ability to activate the muscles. The aim of this preliminary study was to investigate the influence of gluteus medius (GM) IMAT on sEMG amplitude during maximal voluntary isometric contractions (MVIC) of the hip abductors in older adults. We recruited 12 healthy community-dwelling older adults that underwent a spiral computerized tomography scan. High density lean (HDL), IMAT, and subcutaneous adipose tissue (SUBFAT) cross-sectional area of the GM were assessed. sEMG signal from the GM was recorded while participants performed an MVIC of the hip abductors. There was a negative correlation between GM activation and IMAT (r = −0.58, P = 0.046), and also SUBFAT (r = −0.78, P = 0.002) and a positive correlation with HDL (r = 0.73, P = 0.006). When controlling for SUBFAT, the partial correlations demonstrated a consistent negative correlation between GM activation and IMAT (r = −0.60, P = 0.050) but no relationship with HDL. The current results are important for helping to interpret the results from sEMG by accounting for IMAT. In conclusion, the neuromuscular activation of the GM may be reduced by the quantity of IMAT.

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Section: Methodsmentioning

confidence: 99%

Intramuscular Fat Influences Neuromuscular Activation of the Gluteus Medius in Older Adults

et al. 2020

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“…This information is important because the performance of the hip abductor muscles is essential for sports and daily life situations as both an agonist and stabilizer. Nonetheless, the present results may also have practical applications to other populations since because power training is effective for eliciting improved functional performance in older adults (23,40) and neurologic populations, such as individuals with Parkinson's disease (41) and stroke (1). However, caution should be taken when translating these findings to other populations.…”

Section: Discussionmentioning

confidence: 98%

Hip Abductor Power and Velocity: Reliability and Association With Physical Function

Lanza

Kang

Karl

et al. 2021

Journal of Strength and Conditioning Research

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Muscle power, defined as the ability of the muscle to produce torque quickly, has received little attention and may be critical for understanding physical function and performance. Hip abductors' capacity to produce power through both torque and velocity is important for different human activities; hence, a reliable assessment of hip abduction is critical. The first aim of the study was to assess the intersession reliability of hip abductor muscles maximal torque and submaximal power and power during standing hip abduction in young adults using pneumatic resistance. A secondary aim was to investigate whether there was a relationship between hip abductor maximal torque and submaximal power and velocity with clinical assessments of strength and power in young adults. The subjects (n 5 24; 26.0 6 3.7 years) visited the laboratory 2 times. In the first visit, the subjects performed on a pneumatic resistance machine 1-repetition maximum (1RM) and submaximal tests (40, 60, and 70% of 1RM) of the hip abductors and clinical tests of lower-extremity strength and power (The 30-second chair stand test [30CST]; and stair climb power test). During the second visit, all tests were repeated except the clinical tests. One-repetition maximum torque and submaximal power and velocity (at all levels) had excellent reliability (intraclass correlation coefficient $ 0.943) with absolute reliability of 13.5% up to 28.3%. The agreement between days from Bland-Altman plots for power and velocity was near 0 for all levels. Hip abduction velocity had a significant positive correlation with 30CST at 60% (r 5 0.416; p 5 0.048) and 70% of 1RM (r 5 0.442; p 5 0.035). In conclusion, we showed an excellent intersession reliability of the hip abductor muscles 1RM torque and submaximal power and velocity using pneumatic resistance. Furthermore, we demonstrated that hip abduction velocity might be important for the performance of the 30CST.

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“…By utilizing the comparability between muscle power and reactive balance, such as forceful and controlled movements with high velocity, all power training groups in the current analysis demonstrated improvements in measures of reactive balance. There are a handful of studies investigating the correlations between muscle power and reactive balance performances (Muehlbauer et al, 2015 ); however, the effectiveness of power training on reactive balance has been explored only in a few, recent trials (Pamukoff et al, 2014 ; Inacio et al, 2018 ; Cherup et al, 2019 ). The results of this study may have implications for future directions in assessing the relationship between muscle power and reactive balance.…”

Section: Discussionmentioning

confidence: 99%

Which Exercise Interventions Can Most Effectively Improve Reactive Balance in Older Adults? A Systematic Review and Network Meta-Analysis

Kim

Vakula

Bolton

et al. 2022

Front. Aging Neurosci.

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BackgroundReactive balance is the last line of defense to prevent a fall when the body loses stability, and beneficial effects of various exercise-based interventions on reactive balance in older adults have been reported. However, their pooled evidence on the relative effects has yet to be described.ObjectiveTo review and evaluate the comparative effectiveness of various exercise-based interventions on reactive balance in older adults.MethodsNine electronic databases and reference lists were searched from inception to August 2021. Eligibility criteria according to PICOS criteria were as follows: (1) population: older adults with the mean age of 65 years or above; (2) intervention and comparison: at least two distinct exercise interventions or one exercise intervention with a no-exercise controlled intervention (NE) compared in each trial; (3) outcome: at least one measure of reactive balance; (4) study: randomized controlled trial. The main network meta-analysis was performed on data from the entire older adult population, involving all clinical conditions as well as healthy older adults. Subgroup analyses stratified by characteristics of participants (healthy only) and reactive balance outcomes (simulated slip or trip while walking, simulated forward falls, being pushed or pulled, and movable platform) were also conducted.ResultsThirty-nine RCTs (n = 1388) investigating 17 different types of exercise interventions were included in the network meta-analysis. Reactive balance training as a single intervention presented the highest probability (surface under the cumulative ranking (SUCRA) score) of being the best intervention for improving reactive balance and the greatest relative effects vs. NE in the entire sample involving all clinical conditions [SUCRA = 0.9; mean difference (95% Credible Interval): 2.7 (1.0 to 4.3)]. The results were not affected by characteristics of participants (i.e., healthy older adults only) or reactive balance outcomes.Summary/ConclusionThe findings from the NMA suggest that a task-specific reactive balance exercise could be the optimal intervention for improving reactive balance in older adults, and power training can be considered as a secondary training exercise.

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

Cited by 19 publications

References 59 publications

Intramuscular Fat Influences Neuromuscular Activation of the Gluteus Medius in Older Adults

Intramuscular Fat Influences Neuromuscular Activation of the Gluteus Medius in Older Adults

Hip Abductor Power and Velocity: Reliability and Association With Physical Function

Which Exercise Interventions Can Most Effectively Improve Reactive Balance in Older Adults? A Systematic Review and Network Meta-Analysis

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