Age-Related Differences in Maintenance of Balance During Forward Reach to the Floor

Hernandez, Manuel E.; Ashton‐Miller, James A.; Alexander, Neil B.

doi:10.1093/gerona/gls260

Cited by 10 publications

(3 citation statements)

References 46 publications

(60 reference statements)

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“…The ankle stiffening strategy indicates a reduction in the degree of freedom accompanied by a higher risk for future falls in the older population. In this context, studies on older people revealed higher amounts of activity from tibial muscles in the front muscle activity [16]. Previous research suggests that ankle injuries can be caused by improper positioning of feet just before and during contact with the walking surface [17,18].…”

Section: Discussionmentioning

confidence: 99%

Analysis of Ankle sEMG on Both Stable and Unstable Surfaces for Elderly and Young Women—A Pilot Study

Błaszczyszyn

Konieczny

Pakosz

2019

IJERPH

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Body aging is frequently accompanied with numerous consequences such as increased tendency to falls, which may be connected not only with the impaired ability of keeping balance, but also with some limitations of the system responsible for the maintenance of balance. The aim of this study was defining the importance of muscle activity in the ankle joint when standing on stable and unstable surfaces with eyes open and closed as well as examining indications of the influence of body aging on the activity of the selected muscles. The study was carried out on a group of 20 healthy women divided into two age groups (aged 24 ± 3.6 years and aged 64 ± 4.2 years). The activity of muscles stabilizing the ankle joint while standing on different types of surfaces was tested with an EMG (surface electromyography) on both elderly and young women during trials with open and closed eyes. The tests showed higher activation in the evaluated muscles of the anterior group (tibialis anterior (TA), peroneus longus (PL)) of elderly women. For the posterior shin muscles of both groups, a higher activation was observed in the gastrocnemius lateralis muscle (GL) of elderly women, whereas gastrocnemius medialis muscle (GM) showed highly comparable activity. The results obtained in this work confirm the importance of proprioception training and muscle strength in the rehabilitation of older people as well as in prophylactic exercise aimed toward the prevention of ankle injuries.

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Section: Discussionmentioning

confidence: 99%

Analysis of Ankle sEMG on Both Stable and Unstable Surfaces for Elderly and Young Women—A Pilot Study

Błaszczyszyn

Konieczny

Pakosz

2019

IJERPH

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“…Down-ward reaching is a functional task used for balance and postural control training and clinical assessment of the risk of falls. To perform downward reaching, it is necessary to achieve motions such as stepping, squatting, and stooping (Gera et al, 2016;Hernandez et al, 2013). All HA motions included two phases in common: reaching the target spot and performing the horticultural task.…”

Section: Nsmentioning

confidence: 99%

Kinematic and Kinetic Analysis of Horticultural Activities for Postural Control and Balance Training

Lee¹,

Park²,

Moon³

et al. 2018

horts

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The objective of this study was to analyze the kinematic and kinetic characteristics of eight horticultural activities (HAs): digging, raking, sowing seeds, transplanting plants, near-distance weeding, far-distance weeding, low-height harvesting, and high-height harvesting. Twenty-four male university students (average age, 23.4 ± 2.9 years) participated in this study. Balance and postural stability factors [e.g., center of mass (CoM), ground reaction force (GRF), and center of pressure (CoP)] and postural control strategy factors (e.g., joint angles, joint moment, and muscle activation of the trunk and lower limbs) were assessed using a three-dimensional (3D) motion analysis system, force platform, and surface electromyography. A total of eight HAs were distinguished in three motions: stepping, squatting, and stooping. In performing the eight HAs, CoM shifting occurred and balance of the subjects became unstable. These forced compensatory motor strategies to maintain balance by exertion of GRF from the two feet, movement of the CoP, and a combination of musculoskeletal system exercises of the lower limbs and trunk occurred. The kinematic and kinetic characteristics of lower limb motions were significantly different across the HAs (P = 0.05). The kinematic and kinetic characteristics of HAs were similar to those of the functional tasks during balance improvement training motions and activities of daily living. The current study provides useful reference data for developing a horticultural therapy program for balance improvement in patients who need physical rehabilitation. z

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“…These demands constitute a significant challenge to balance control, although a lower COM, characteristic of these postures, should theoretically increase stability (Hernandez et al, 2010;Winter, 1995). Indeed, community-dwelling older adults have reported significant difficulty maintaining balance in these postures (Hernandez et al, 2013(Hernandez et al, , 2010, with a higher annual fall rate in older adults who report difficulty performing stooping and crouching postures (Hernandez et al, 2010). It is therefore imperative to improve our understanding of balance control in these postures towards developing therapeutic interventions that effectively mitigate stooping and crouching difficulties in older adults.…”

Section: Introductionmentioning

confidence: 99%

Moving beyond quiet stance: Applicability of the inverted pendulum model to stooping and crouching postures

Weaver

Glinka

Laing

2014

Journal of Biomechanics

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Age-Related Differences in Maintenance of Balance During Forward Reach to the Floor

Abstract: Healthy older women performing a rapid maximum forward reach on the floor, particularly when using their forefoot for support, are at an increased risk for losing their balance.

Cited by 10 publications

References 46 publications

Analysis of Ankle sEMG on Both Stable and Unstable Surfaces for Elderly and Young Women—A Pilot Study

Analysis of Ankle sEMG on Both Stable and Unstable Surfaces for Elderly and Young Women—A Pilot Study

Kinematic and Kinetic Analysis of Horticultural Activities for Postural Control and Balance Training

Moving beyond quiet stance: Applicability of the inverted pendulum model to stooping and crouching postures

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