Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Differences in multiple segment tremor dynamics between young and elderly persons.

Steven Morrison1, Peter Mills, Rod Barrett

  • 1School of Physiotherapy and Exercise Science, Griffith University, Queensland 9276, Australia. s.morrison@griffith.edu.au

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
|September 9, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Blood-derived gene expression profiles associated with dietary microalgae oil intake and methane emission variation in lambs.

BMC genomics·2026
Same author

Apple pomace and hempseed cake can reduce methane intensity (CH₄/DMI) and alter the rumen microbiome in dairy cows: a shotgun metagenomic approach.

Journal of animal science and biotechnology·2026
Same author

RNA-Seq Analysis of Ruminal Methane Emissions in Beef-on-Dairy Cattle: Evidence for Immune, Nervous, and Endocrine Pathway Involvement.

Animals : an open access journal from MDPI·2026
Same author

Health Literacy-Focused Communication Training for Primary Healthcare Providers Working With Older Adults: A Co-Designed Prototype.

Health expectations : an international journal of public participation in health care and health policy·2026
Same author

Gait variability is more strongly associated with walking speed than with age.

Gait & posture·2025
Same author

Occurrence and risk assessment of organochlorine pesticides in River Rwizi sediment in Western Uganda.

Discover Environment·2025
Same journal

Correction to: Association of heatwave exposure and multimorbidity with depression trajectories among older adults: evidence from the China Health and Retirement Longitudinal Study.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same journal

The association of frailty with age and lifespan in mice differs by strain and sex.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same journal

Association between Hearing Loss, Physical Activity, and Sedentary Behavior: A Nationally Representative Cross-Sectional Study in Chile.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same journal

Challenge-based ex vivo immune profiling reveals stimulus-dependent peripheral immune reprogramming in Alzheimer's disease.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same journal

Introduction to the special issue on the impact of climate change and air quality on human aging.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same journal

State Racism Index and physical function: The REasons for Geographic and Racial Differences in Stroke (REGARDS) study.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
See all related articles

Older adults experience increased physiological tremor, especially when standing. Body posture significantly impacts tremor, highlighting its importance in clinical assessments of aging motor control.

Area of Science:

  • Neuroscience
  • Gerontology
  • Biomechanics

Background:

  • Physiological tremor is a variable motor output affected by neuromuscular function and task demands.
  • Increased tremor can impair fine motor skills, particularly in older adults with reduced postural control.
  • Understanding factors that amplify tremor is crucial for aging populations.

Purpose of the Study:

  • To investigate the influence of whole-body posture (seated vs. standing) on multi-segment tremor.
  • To examine forearm electromyogram (EMG) activity in relation to posture and age.
  • To compare tremor and EMG patterns between younger and older individuals.

Main Methods:

  • Bilateral pointing task performed by 14 older and 12 younger participants.
  • Tremor data collected via accelerometers on forearm, hand, and finger segments.

Related Experiment Videos

  • Surface EMG recorded from the extensor digitorum muscle.

    • Main Results:

    • Older adults showed greater hand and finger tremor amplitude and EMG activity than younger adults.
    • Tremor in older individuals was most pronounced in the standing posture.
    • Age-related tremor increases were concentrated in the 8-12 Hz frequency band.

    Conclusions:

    • Multi-segment tremor analysis offers valuable insights into age-related motor control differences.
    • Body posture is a significant factor influencing tremor, especially in older adults.
    • Postural position should be considered a potential confounder in tremor assessments across different groups.