Adaptational responses in dynamic stability during disturbed walking in the elderly

Bierbaum, Stefanie; Peper, Andreas; Karamanidis, Kiros; Arampatzis, Adamantios

doi:10.1016/j.jbiomech.2010.04.025

Cited by 85 publications

(140 citation statements)

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“…Elderly individuals are less able to handle sudden, unexpected changes (Pijnappels et al 2005; Karamanidis and Arampatzis 2007;Bierbaum et al 2010). Reasons for the decreased ability to recover balance are the age-related reduction in muscle strength and tendon stiffness (Grabiner et al 2005; Karamanidis et al 2008), the delayed generation of propulsive ground reaction forces and joint torques (Robinovitch et al 2002;Pijnappels et al 2005;Tseng et al 2009), and the lower muscular contraction velocities (Hortobágyi et al 1995;Thelen et al 1997).…”

mentioning

confidence: 99%

“…Reasons for the decreased ability to recover balance are the age-related reduction in muscle strength and tendon stiffness (Grabiner et al 2005; Karamanidis et al 2008), the delayed generation of propulsive ground reaction forces and joint torques (Robinovitch et al 2002;Pijnappels et al 2005;Tseng et al 2009), and the lower muscular contraction velocities (Hortobágyi et al 1995;Thelen et al 1997). If the postural system is unstable, stepping strategies seem to be less successful for the elderly due to reductions in step length and speed (Wojcik et al 2001;Karamanidis et al 2008;Bierbaum et al 2010). Furthermore, decreased recovery performance is attributed to deficits in the application of the mechanisms of dynamic stability .…”

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confidence: 99%

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Exercise of mechanisms of dynamic stability improves the stability state after an unexpected gait perturbation in elderly

Bierbaum

Peper

Arampatzis

2012

AGE

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Unexpected changes during gait challenge elderly individuals to a greater degree than young adults. However, the adaptive potential of elderly seems to be retained, and therefore, the training of the mechanisms of dynamic stability as well as muscle strength training may improve the dynamic stability after unexpected perturbations. Thirty-eight subjects (65-75 years) participated in the study, divided into two experimental groups (stability training group, ST, n014 and mixed training group, MT, n014) and a control group (CG, n010). Both experimental groups performed exercises which focused on the mechanisms of dynamic stability. Additionally, the MT group executed a training to improve muscle strength. Session volume and duration were equal for both groups (14 weeks, twice a week,~1.5 h per session). Pre-and post-intervention, subjects performed a gait protocol with an induced unexpected perturbation. Post-intervention, the margin of stability was significantly increased after the unexpected perturbation in the ST group, indicating an improvement in stability state (pre, −30.3 ± 5.9 cm; post, −24.1 ± 5.2 cm). Further, both intervention groups increased their base of support after the intervention to regain balance after gait perturbation, whereas only the ST group showed a statistically significant improvement (ST pre , 90.9± 6.6 cm, ST post , 98.2±8.5 cm; MT pre , 91.4±6.2 cm; MT post , 97.9±12.7 cm). The CG showed no differences between pre-and post-measurements. The exercise of the mechanisms of dynamic stability led to a better application of these mechanisms after an unexpected perturbation during gait. We suggest that the repeated exercise of the mechanisms of dynamic stability contributes to significant improvements in postural stability. Additional strength training for healthy elderly individuals, however, shows no further effect on the ability to recover balance after unexpected perturbations during gait.

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confidence: 99%

mentioning

confidence: 99%

Exercise of mechanisms of dynamic stability improves the stability state after an unexpected gait perturbation in elderly

Bierbaum

Peper

Arampatzis

2012

AGE

Self Cite

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“…Barrett et al (2012) demonstrated the mechanism of recovering dynamic balance in the elderly by quantifying balance recovery ability through a MoS analysis under the condition of repeated perturbation by the tether-release method. Moreover, Bierbaum et al (2010) examined the ability to recover balance under an imbalanced state and reported that the MoS showed a greater decrease in the elderly group than in the young group when the MoS analysis method used in the present study was applied to a dynamic imbalance situation where the ground changed suddenly while walking.…”

Section: Kjsb Korean Journal Of Sport Biomechanicsmentioning

confidence: 90%

“…behind the ability to recover dynamic balance after artificially inducing the state of dynamic imbalance (Menant et al, 2008;Bierbaum et al, 2010;Barrett et al, 2012). In particular, previous studies quantified the dynamic balance recovery ability of the elderly using a MoS analysis.…”

Section: Kjsb Korean Journal Of Sport Biomechanicsmentioning

confidence: 99%

“…In particular, instead of analyzing the center of pressure (CoP) to investigate changes in postural maintenance, quantification of dynamic balance ability in the field of kinematics has involved analyzing the margin of stability (MoS) on the basis of extrapolated center of mass (xCoM), which is known to be more suitable for predicting the direction of movement, as the center of mass (CoM) includes information on velocity at dynamic posture, leg length, and gravitational acceleration (Hasson, Van Emmerik, & Caldwell, 2008;Hof, Gazendam, & Sinke, 2005). Such a method can quantify dynamic stability that allows for spatiotemporal analysis (Bierbaum, Peper, Karamanidis, & Arampatzis, 2010;Barrett, Cronin, Lichtwark, Mills, & Carty, 2012;Jang, Hong, & Jang, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Dynamic Balance Recovery Ability by External Perturbation in the Elderly

Park¹,

Koh²,

Park³

et al. 2017

Korean Journal of Sport Biomechanics

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Objective: The aim of the study was to investigate the age-related ability of dynamic balance recovery through perturbation response during standing.Method: Six older and 6 younger adults participated in this study. External perturbation during standing as pulling force applied at the pelvic level in the anterior direction was provided to the subject. The margin of stability was quantified as a measure of postural stability or dynamic balance recovery, and using principal component analysis (PCA), the regularity of the margin of stability (MoS) was calculated.Results: Our results showed that in the older adult group, 60.99% and 28.63% of the total variance were captured using the first and second principal components (PCs), respectively, and in the younger adult group, 81.95% and 10.71% of the total variance were captured using the first and second PCs, respectively.Conclusion: Ninety percent of the total variance captured using the first two PCs indicates that the older adults had decreased regularity of the MoS than the younger adults. Thus, the results of the present study suggest that aging is associated with non-regularity of dynamic postural stability.

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The Impact of Virtual Reality on Ranges of COP Motions During Gait

Wodarski

Jurkojć

Gzik

et al. 2019

Innovations in Biomedical Engineering

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Adaptational responses in dynamic stability during disturbed walking in the elderly

Cited by 85 publications

References 35 publications

Exercise of mechanisms of dynamic stability improves the stability state after an unexpected gait perturbation in elderly

Exercise of mechanisms of dynamic stability improves the stability state after an unexpected gait perturbation in elderly

Analysis of the Dynamic Balance Recovery Ability by External Perturbation in the Elderly

The Impact of Virtual Reality on Ranges of COP Motions During Gait

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