Rate of torque development and the risk of falls among community dwelling older adults in Japan

Kamo, Tomohiko; Asahi, Ryoma; Azami, Masato; Ogihara, Hirofumi; Ikeda, Tomoko; Suzuki, Keisuke; Nishida, Yukio

doi:10.1016/j.gaitpost.2019.05.019

Cited by 25 publications

(12 citation statements)

References 50 publications

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“…Higher maximal strength has been associated with better reactive balance performance during non-stepping responses in response to perturbations of standing (Mackey and Robinovitch, 2006 ) and lower fall risk (Melzer et al, 2004 ; Lin and Woollacott, 2005 ; Pijnappels et al, 2008 ; LaRoche et al, 2010 ; Cattagni et al, 2014 ; Gadelha et al, 2018 ). Some studies found similar associations between the rate of force development and balance performance (Pijnappels et al, 2008 ), whereas others did not (LaRoche et al, 2010 ; Kamo et al, 2019 ). Yet RT has not consistently led to improved reactive balance and it is unclear whether RT induced improvements in muscle strength lead to more efficient application of the COP strategy in healthy older adults.…”

Section: Introductionmentioning

confidence: 95%

Adaptations in Reactive Balance Strategies in Healthy Older Adults After a 3-Week Perturbation Training Program and After a 12-Week Resistance Training Program

Wouwe

Afschrift

Dalle

et al. 2021

Front. Sports Act. Living

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Both resistance training (RT) and perturbation-based training (PBT) have been proposed and applied as interventions to improve reactive balance performance in older adults. PBT is a promising approach but the adaptations in underlying balance-correcting mechanisms through which PBT improves reactive balance performance are not well-understood. Besides it is unclear whether PBT induces adaptations that generalize to movement tasks that were not part of the training and whether those potential improvements would be larger than improvements induced by RT. We performed two training interventions with two groups of healthy older adults: a traditional 12-week RT program and a 3-week PBT program consisting of support-surface perturbations of standing balance. Reactive balance performance during standing and walking as well as a set of neuro-muscular properties to quantify muscle strength, sensory and motor acuity, were assessed pre- and post-intervention. We found that both PBT and RT induced training specific improvements, i.e., standing PBT improved reactive balance during perturbed standing and RT increased strength, but neither intervention affected reactive balance performance during perturbed treadmill walking. Analysis of the reliance on different balance-correcting strategies indicated that specific improvements in the PBT group during reactive standing balance were due to adaptations in the stepping threshold. Our findings indicate that the strong specificity of PBT can present a challenge to transfer improvements to fall prevention and should be considered in the design of an intervention. Next, we found that lack of improvement in muscle strength did not limit improving reactive balance in healthy older adults. For improving our understanding of generalizability of specific PBT in future research, we suggest performing an analysis of the reliance on the different balance-correcting strategies during both the training and assessment tasks.

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Section: Introductionmentioning

confidence: 95%

Adaptations in Reactive Balance Strategies in Healthy Older Adults After a 3-Week Perturbation Training Program and After a 12-Week Resistance Training Program

Wouwe

Afschrift

Dalle

et al. 2021

Front. Sports Act. Living

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show abstract

“…The literature is currently mixed regarding the role of muscle strength in balance and falls [9–13,17,39–42]. Despite this, small to moderate associations between lower limb muscle strength and balance recovery performance following laboratory-based perturbations [28–38] led us to our hypothesis of a small to moderate relationship between Type II muscle fibre properties and balance recovery performance from a sudden walking perturbation.…”

Section: Discussionmentioning

confidence: 99%

“…Specifically, the leg extensor muscle-tendon groups critical for gait [2][3][4] show reduced muscle strength and altered tendon mechanical properties in older, compared to younger adults [5][6][7][8]. Lower limb muscle strength [9][10][11][12], power [11,13,14] and quality [15,16] have been associated with daily life falls incidence in older adults, although findings are not unequivocal [12,13,[17][18][19]. The majority of falls in community-dwelling older adults occur following large balance disturbances (like trips and slips) during walking [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Type II muscle fibre properties are not associated with balance recovery following large perturbations during walking in young and older adults

McCrum

Grevendonk

Schaart

et al. 2021

Preprint

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Falls among older adults are often attributed to declining muscle strength with ageing. Associations between muscle strength and balance control have been reported, but the evidence for, and key mechanisms of resistance exercise in fall prevention are unclear. No studies have directly examined the relationship between muscle fibre characteristics and reactive balance control. Here, we address whether or not Type II muscle fibre characteristics associate with reactive balance during walking in young and older adults with varying muscle fibre type composition. We analyse muscle biopsy-derived fibre characteristics and stability during a treadmill-based walking perturbation (trip-like) task of healthy young adults, healthy, normally active older adults, trained older adults and physically impaired older adults. We find no significant associations between Type II muscle fibre properties and reactive balance during walking, indicating that practitioners and researchers should consider more than just the muscle tissue properties when assessing and intervening on fall risk.

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“…Thus, based on a synthesis of the present results with literature evidence, we may assume that muscle strength itself seems to be more important among subjects with some problems of mobility, who are institutionalized or who are recurrent fallers (Moreland et al, 2004; Scott et al, 2014; Wolfson et al, 1995), with such older adults being more eligible for preventive strategies based on intrinsic risk factors for falls (Graafmans et al, 1996). Indeed, some studies have suggested that physiological performance seems to be similar among nonfaller older adults and fallers with a single fall (Bento et al, 2010; Kamo et al, 2019; Scott et al, 2014). This is important within the context of public health to select appropriate interventions that would prevent the occurrence of the first fall among nonfaller older adults.…”

Section: Discussionmentioning

confidence: 99%

Relationship Between Lower Limb Muscle Strength and Future Falls Among Community-Dwelling Older Adults With No History of Falls: A Prospective 1-Year Study

et al. 2020

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Objective: To investigate whether lower limb muscle strength could be a risk factor for the first fall among nonfaller community-dwelling older adults. Method: Hip, knee, and ankle peak torque (PT) was measured with an isokinetic dynamometer in 101 older adults with no history of falls in the previous year. Next, the authors followed up the participants on a monthly basis by telephone contact to determine the occurrence of fall episodes over a period of 1 year. Multivariate logistic regression adjusted for confounding variables was applied to assess the relationship between falls and lower limb PT. Results: there was no association between lower limb PT and future falls ( p > .05). Conclusion: Based on these results, it is important to identify other factors that predispose older adults with no history of falls to falling for the first time, so that early and effective preventive strategies may be elaborated.

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Rate of torque development and the risk of falls among community dwelling older adults in Japan

Cited by 25 publications

References 50 publications

Adaptations in Reactive Balance Strategies in Healthy Older Adults After a 3-Week Perturbation Training Program and After a 12-Week Resistance Training Program

Adaptations in Reactive Balance Strategies in Healthy Older Adults After a 3-Week Perturbation Training Program and After a 12-Week Resistance Training Program

Type II muscle fibre properties are not associated with balance recovery following large perturbations during walking in young and older adults

Relationship Between Lower Limb Muscle Strength and Future Falls Among Community-Dwelling Older Adults With No History of Falls: A Prospective 1-Year Study

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