ArticlePloS one2013
Modulation of force below 1 Hz: age-associated differences and the effect of magnified visual feedback.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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Who cites it
23 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Relationship Between Force Steadiness and Functionality in Older Adults: A Systematic Review With Meta-Analysis.Scandinavian journal of medicine & science in sports · 2025Pooled it
- Influence of visual feedback and cognitive challenge on the age-related changes in force steadiness.Experimental brain research · 2024Article
- Rethinking force steadiness: a new perspective.Journal of applied physiology (Bethesda, Md. : 1985) · 2024Article
- Visual Information Processing in Older Adults: Force Control and Motor Unit Pool Modulation.Journal of motor behavior · 2024Article
- Effects of tendon vibration and age on force reproduction task performed with wrist flexors.Experimental brain research · 2022Article
- Unilateral hand force control impairments in older women.EXCLI journal · 2022Article
- Age-associated increase in postural variability relate to greater low-frequency center of pressure oscillations.Gait & posture · 2021Article
- Temporal but not spatial dysmetria relates to disease severity in FA.Journal of neurophysiology · 2020Article
- Effects of online-bandwidth visual feedback on unilateral force control capabilities.PloS one · 2020Article
- Visual information processing in older adults: reaction time and motor unit pool modulation.Journal of neurophysiology · 2018Article
- Speed but not amplitude of visual feedback exacerbates force variability in older adults.Experimental brain research · 2018Article
- Decrease in force steadiness with aging is associated with increased power of the common but not independent input to motor neurons.Journal of neurophysiology · 2018Article
- Voluntary reduction of force variability via modulation of low-frequency oscillations.Experimental brain research · 2017Article
- Age-specific neural strategies to maintain motor performance after an acute social stress bout.Experimental brain research · 2017Article
- Low-Frequency Oscillations and Control of the Motor Output.Frontiers in physiology · 2017Review
- Alterations in Neural Control of Constant Isometric Contraction with the Size of Error Feedback.PloS one · 2017Article
- Age and sex differences in steadiness of elbow flexor muscles with imposed cognitive demand.European journal of applied physiology · 2015Article
- High-gain visual feedback exacerbates ankle movement variability in children.Experimental brain research · 2015Article
- Visuomotor Correction is a Robust Contributor to Force Variability During Index Finger Abduction by Older Adults.Frontiers in aging neuroscience · 2015Article
- Age-related differences in the availability of visual feedback during bimanual pinch.European journal of applied physiology · 2014Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Oscillations in force output change in specific frequency bins and have important implications for understanding aging and pathological motor control. Although previous studies have demonstrated that oscillations from 0-1 Hz can be influenced by aging and visuomotor processing, these studies have averaged power within this bandwidth and not examined power in specific frequencies below 1 Hz. The purpose was to determine whether a differential modulation of force below 1 Hz contributes to changes in force control related to manipulation of visual feedback and aging. Ten young adults (25±4 yrs, 5 men) and ten older adults (71±5 yrs, 4 men) were instructed to accurately match a target force at 2% of their maximal isometric force for 35 s with abduction of the index finger. Visual feedback was manipulated by changing the visual angle (0.05°, 0.5°, 1.5°) or removing it after 15 s. Modulation of force below 1 Hz was quantified by examining the absolute and normalized power in seven frequency bins. Removal of visual feedback increased normalized power from 0-0.33 Hz and decreased normalized power from 0.66-1.0 Hz. In contrast, magnification of visual feedback (visual angles of 0.5° and 1.5°) decreased normalized power from 0-0.16 Hz and increased normalized power from 0.66-1.0 Hz. Older adults demonstrated a greater increase in the variability of force with magnification of visual feedback compared with young adults (P = 0.05). Furthermore, older adults exhibited differential force modulation of frequencies below 1 Hz compared with young adults (P<0.05). Specifically, older adults exhibited greater normalized power from 0-0.16 Hz and lesser normalized power from 0.66-0.83 Hz. The changes in force modulation predicted the changes in the variability of force with magnification of visual feedback (R(2) = 0.80). Our findings indicate that force oscillations below 1 Hz are associated with force control and are modified by aging and visual feedback.
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