ArticleClinical biomechanics (Bristol, Avon)2007
Elderly show decreased adjustments of motor synergies in preparation to action.
Article in Clinical biomechanics (Bristol, Avon), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Age-related changes to motor synergies in multi-joint and multi-finger manipulative skills: a meta-analysis.European journal of applied physiology · 2019Pooled it
- Two strategies of anticipatory mechanism during change in frequency of cyclic multi-finger force production in isometric conditions.Experimental brain research · 2026Article
- Effect of Cognitive Load on Anticipatory Postural Adjustment Latency and its Relationship with Pain-Related Dysfunction in Non-specific Chronic Low Back Pain: A Cross-Sectional Study.Pain and therapy · 2023Article
- Number of Trials Necessary to Apply Analysis Within the Framework of the Uncontrolled Manifold Hypothesis at Different Levels of Hierarchical Synergy Control.Journal of human kinetics · 2021Article
- The effects of aging on the distribution and strength of correlated neural inputs to postural muscles during unperturbed bipedal stance.Experimental brain research · 2020Article
- Effect of dance on multi-muscle synergies in older adults: a cross-sectional study.BMC geriatrics · 2019Article
- Effects of spastic cerebral palsy on multi-finger coordination during isometric force production tasks.Experimental brain research · 2019Article
- Preparation to a quick whole-body action: control with referent body orientation and multi-muscle synergies.Experimental brain research · 2019Article
- Expectation of movement generates contrasting changes in multifinger synergies in young and older adults.Experimental brain research · 2018Article
- Systemic effects of deep brain stimulation on synergic control in Parkinson's disease.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2018Article
- Anticipatory postural adjustments and anticipatory synergy adjustments: preparing to a postural perturbation with predictable and unpredictable direction.Experimental brain research · 2017Article
- Synergy as a new and sensitive marker of basal ganglia dysfunction: A study of asymptomatic welders.Neurotoxicology · 2016Article
- Effects of unilateral stroke on multi-finger synergies and their feed-forward adjustments.Neuroscience · 2016Article
- Neural control of movement stability: Lessons from studies of neurological patients.Neuroscience · 2015Review
- Muscle synergies in preparation to a step made with and without obstacle.European journal of applied physiology · 2014Article
- Dopaminergic modulation of motor coordinaton in Parkinson's disease.Parkinsonism & related disorders · 2014Article
- Gait disturbances as specific predictive markers of the first fall onset in elderly people: a two-year prospective observational study.Frontiers in aging neuroscience · 2014Article
- Effects of olivo-ponto-cerebellar atrophy (OPCA) on finger interaction and coordination.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2013Article
- Anticipatory synergy adjustments: preparing a quick action in an unknown direction.Experimental brain research · 2013Article
- Changes in multifinger interaction and coordination in Parkinson's disease.Journal of neurophysiology · 2012Article
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Authors and funding
4 authors.
Funding
Abstract
backgroundAging is associated with decreased manual dexterity. Recent findings have identified changes in multi-finger synergies in elderly individuals. The purpose of current work was to study age-related changes in adjustments of multi-finger synergies in preparation to a quick targeted force pulse production task.
methodsRight-handed elderly and young subjects produced quick force pulses by pressing on individual force sensors with the four fingers of the right hand. Prior to the force pulse, the subjects produced a constant low level of the total force. An index of multi-finger synergies was computed across trials for each time sample for each subject and each condition.
findingsDuring steady-state force production, subjects showed co-variation of commands to fingers that stabilized the total force. An index of this co-variation started to decrease prior to the initiation of the force pulse (anticipatory synergy adjustment). Anticipatory synergy adjustments in young subjects started earlier and were larger than in elderly subjects. In particular, young and elderly subjects showed significant anticipatory synergy adjustments starting about 150ms and about 50ms prior to the force pulse initiation, respectively. There were no significant differences between the two groups in other indices of performance such as reaction time, time to peak force, and magnitude of the peak force.
interpretationWe conclude that healthy aging is associated with decreased feed-forward adjustments of multi-finger synergies in preparation to action. This may contribute to the age-related decline in the hand function. Based on similarities in age-related changes in anticipatory postural adjustments and anticipatory synergy adjustments we suggest a hypothesis that the two phenomena may share common mechanisms.
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