ArticleJournal of applied physiology (Bethesda, Md. : 1985)2010
Age-related changes in the control of finger force vectors.
Article in Journal of applied physiology (Bethesda, Md. : 1985), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.
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Who cites it
39 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
- Distinct behavior of the little finger during the vertical translation of an unsteady thumb platform while grasping.Scientific reports · 2021Trial
- Improving finger coordination in young and elderly persons.Experimental brain research · 2013Trial
- Control of fingertip forces in young and older adults pressing against fixed low- and high-friction surfaces.PloS one · 2012Trial
- Age-related changes in upper limb coordination in a complex reaching task.Experimental brain research · 2021Article
- Perturbation-induced fast drifts in finger enslaving.Experimental brain research · 2021Article
- On the origin of finger enslaving: control with referent coordinates and effects of visual feedback.Journal of neurophysiology · 2020Article
- Effect of dance on multi-muscle synergies in older adults: a cross-sectional study.BMC geriatrics · 2019Article
- Case Studies in Neuroscience: The central and somatosensory contributions to finger interdependence and coordination: lessons from a study of a "deafferented person".Journal of neurophysiology · 2019Article
- Single finger movements in the aging hand: changes in finger independence, muscle activation patterns and tendon displacement in older adults.Experimental brain research · 2019Article
- Recommendation for the minimum number of steps to analyze when performing the uncontrolled manifold analysis on walking data.Journal of biomechanics · 2019Article
- Flexibility in joint coordination remains unaffected by force and balance demands in young and old adults during simple sit-to-stand tasks.European journal of applied physiology · 2019Article
- Instability Resistance Training Decreases Motor Noise During Challenging Walking Tasks in Older Adults: A 10-Week Double-Blinded RCT.Frontiers in aging neuroscience · 2019Article
- Expectation of movement generates contrasting changes in multifinger synergies in young and older adults.Experimental brain research · 2018Article
- Effect of Kinetic Degrees of Freedom on Multi-Finger Synergies and Task Performance during Force Production and Release Tasks.Scientific reports · 2018Article
- Increased enslaving in elderly is associated with changes in neural control of the extrinsic finger muscles.Experimental brain research · 2018Article
- Article
- Effects of muscle fatigue on directional coordination of fingertip forces during precision grip.PloS one · 2018Article
- Development of finger force coordination in children.Experimental brain research · 2017Article
- Old adults preserve motor flexibility during rapid reaching.European journal of applied physiology · 2017Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
We explored changes in finger interaction in the process of healthy aging as a window into neural control strategies of natural movements. In particular, we quantified the amount of force produced by noninstructed fingers in different directions, the amount of force produced by the instructed finger orthogonally to the task direction, and the strength of multifinger synergies stabilizing the total force magnitude and direction during accurate force production. Healthy elderly participants performed accurate isometric force production tasks in five directions by individual fingers and by all four fingers acting together. Their data were compared with a dataset obtained in a similar earlier study of young subjects. Finger force vectors were measured using six-component force/torque sensors. Multifinger synergies were quantified using the framework of the uncontrolled manifold hypothesis. The elderly participants produced lower force magnitudes by noninstructed fingers and higher force magnitudes by instructed fingers in nontask directions. They showed strong synergies stabilizing the magnitude and direction of the total force vector. However, the synergy indexes were significantly lower than those observed in the earlier study of young subjects. The results are consistent with an earlier hypothesis of preferential weakening of intrinsic hand muscles with age. We interpret the findings as a shift in motor control from synergic to element-based, which may be causally linked to the documented progressive neuronal death at different levels of the neural axis.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.