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 Concept Videos

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
Alterations in Muscle Tone ll01:12

Alterations in Muscle Tone ll

Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...

You might also read

Related Articles

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

Sort by
Same author

Intravascular Ultrasound-Guided Percutaneous Coronary Intervention for Severely Calcified Lesions Requiring Rotational Atherectomy.

Korean circulation journal·2026
Same author

Impact of Chronic Kidney Disease on Contrast-Induced Nephropathy, Bleeding, and Clinical Outcomes After Rotational Atherectomy: A Multicenter Retrospective Study.

Medicina (Kaunas, Lithuania)·2026
Same author

Physician Disagreement With Guidelines as a Critical Barrier to Achieving LDL-C Targets in Very High-Risk Patients: An Implementation Science Study.

Journal of Korean medical science·2026
Same author

Exploratory EEG-TMS Study Reveals Altered Behavioral Function in Individuals Following Anterior Cruciate Ligament Reconstruction.

Brain sciences·2026
Same author

Urban-rural differences in the longitudinal reciprocal relationship between assets and health among Chinese older adults.

Social science & medicine (1982)·2026
Same author

Complete revascularization timing in ST-segment elevation myocardial infarction and multivessel disease with heart failure: the OPTION-STEMI trial.

European heart journal·2026

Related Experiment Video

Updated: Jul 28, 2026

Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults
08:56

Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults

Published on: November 7, 2014

13.9K

Postural change, gait, and physical function in older adults.

Eryn N Murphy1, Yong Woo An2, Sang-Rok Lee3

  • 1Colorado College, Colorado Springs, CO, USA.

Gait & Posture
|June 21, 2024
PubMed
Summary

Standing after lying down significantly slows gait speed and increases fall risk in older adults. This posture change impacts balance and physical function, highlighting a need for new screening methods.

Keywords:
AgingFalls RiskGaitPhysical FunctionPosture Change

More Related Videos

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

10.2K
Evaluating the Function of the Foot Core System in the Elderly
08:25

Evaluating the Function of the Foot Core System in the Elderly

Published on: March 11, 2022

2.7K

Related Experiment Videos

Last Updated: Jul 28, 2026

Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults
08:56

Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults

Published on: November 7, 2014

13.9K
Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

10.2K
Evaluating the Function of the Foot Core System in the Elderly
08:25

Evaluating the Function of the Foot Core System in the Elderly

Published on: March 11, 2022

2.7K

Area of Science:

  • Gerontology
  • Biomechanics
  • Clinical Physiology

Background:

  • Orthostatic hypotension, a hemodynamic response to posture change, is clinically relevant for physical function.
  • Gait and physical function impairments are linked to fall risk in older adults.
  • The impact of posture change on gait and physical function requires further investigation.

Purpose of the Study:

  • To investigate the effects of posture change on spatiotemporal gait parameters.
  • To assess the influence of posture change on Timed Up-and-Go (TUG) performance.

Main Methods:

  • Forty-two older adults (mean age 73.21 years) participated.
  • Gait velocity, cadence, stride length, and active propulsion were measured using a Tekscan gait system.
  • TUG performance was compared after seated rest versus supine rest using dependent t-tests.

Main Results:

  • Timed Up-and-Go (TUG) performance was significantly slower after supine rest (11.47s) compared to seated rest (10.01s).
  • Gait velocity and cadence were significantly reduced after supine rest.
  • Percent of time in active propulsion was significantly lower after supine rest.

Conclusions:

  • Posture change from supine to standing is associated with gait parameters indicative of increased fall risk in older adults.
  • Supine rest significantly impairs TUG performance compared to seated rest.
  • Future research should explore the utility of supine rest for falls risk screening.