ArticleEuropean journal of applied physiology2015
Age and sex differences in steadiness of elbow flexor muscles with imposed cognitive demand.
Article in European journal of applied physiology, 2015. 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.
- Effects of Combining Occupationally Relevant Physical and Cognitive Tasks. A Systematic Review.Annals of work exposures and health · 2023Pooled it
- Trial
- Neuromuscular and behavioural evidence of motor control adaptations following 8 weeks of virtual reality exergaming.European journal of applied physiology · 2026Article
- Dual-Tasking Exacerbates Force and Neural Control Unsteadiness in Older Adults With Sarcopenia.Journal of cachexia, sarcopenia and muscle · 2026Article
- Age-related alterations in trunk extensor force control during isometric and isokinetic contractions.Scientific reports · 2026Article
- Age-related differences in eye movements and the association with Archimedes spiral tracing performance in young and older adults.Experimental brain research · 2025Article
- Explaining the influence of practice on the grooved pegboard times of older adults: role of force steadiness.Experimental brain research · 2024Article
- Influence of visual feedback and cognitive challenge on the age-related changes in force steadiness.Experimental brain research · 2024Article
- Visual feedback and declines in attention are associated with altered visual strategy during a force-steadiness task in older adults.Journal of neurophysiology · 2023Article
- Cognitive challenge as a probe to expose sex- and age-related differences during static contractions.Frontiers in physiology · 2023Review
- Aging and skeletal muscle force control: Current perspectives and future directions.Scandinavian journal of medicine & science in sports · 2022Review
- Sex and limb comparisons of neuromuscular function in the morning versus the evening.Physiological reports · 2022Article
- Tremor, finger and hand dexterity and force steadiness, do not change after mental fatigue in healthy humans.PloS one · 2022Article
- Fatigue, Stress, and Performance during Alternating Physical and Cognitive Tasks-Effects of the Temporal Pattern of Alternations.Annals of work exposures and health · 2021Article
- Characteristics of rectus femoris activation and rectus femoris-hamstrings coactivation during force-matching isometric knee extension in subacute stroke.Experimental brain research · 2021Article
- Resting Tendon Cross-Sectional Area Underestimates Biceps Brachii Tendon Stress: Importance of Measuring During a Contraction.Frontiers in physiology · 2021Article
- A Methodological Framework to Capture Neuromuscular Fatigue Mechanisms Under Stress.Frontiers in neuroergonomics · 2021Review
- Force control during submaximal isometric contractions is associated with walking performance in persons with multiple sclerosis.Journal of neurophysiology · 2020Article
- Force Control and Motor Unit Firing Behavior Following Mental Fatigue in Young Female and Male Adults.Frontiers in integrative neuroscience · 2020Article
- Oscillations in neural drive and age-related reductions in force steadiness with a cognitive challenge.Journal of applied physiology (Bethesda, Md. : 1985) · 2019Article
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Authors and funding
6 authors.
Funding
Abstract
purposeThese studies determined (1) age- and sex-related differences in steadiness of isometric contractions when high cognitive demand was imposed across a range of forces with the elbow flexor muscles (study 1) and; (2) sex differences in steadiness among older adults when low cognitive demand was imposed (study 2).
methods36 young adults (18-25 years; 18 women) and 30 older adults (60-82 years; 17 women) performed isometric contractions at 5, 30 and 40 % of maximum voluntary contraction (MVC). Study 1 involved a high-cognitive demand session (serial subtractions by 13 during the contraction) and a control session (no mental math). Study 2 (older adults only) involved a low-cognitive demand session (subtracting by 1s).
resultsOlder individuals exhibited greater increases in force fluctuations (coefficient of variation of force, CV) with high cognitive demand than young adults, with the largest age difference at 5 % MVC (P = 0.01). Older adults had greater agonist EMG activity with high-cognitive demand and women had greater coactivation than men (P < 0.05). In study 2, CV of force increased with low cognitive demand for the older women but not for the older men (P = 0.03).
conclusionOlder adults had reduced steadiness and increased muscle activation when high cognitive demand was imposed while low cognitive demand induced increased force fluctuations in older women but not older men. These findings have implications for daily and work-related tasks that involve cognitive demand performed simultaneously during submaximal isometric contractions in an aging workforce.
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