Effect of time of day on the vertical spinal creep response

Applied Ergonomics
Rungthip PuntumetakulI Fulton

Abstract

Vertical spinal creep (VSC) is height loss during sustained postures over a set period of time. While total stature has been demonstrated to decrease throughout the day, whether a diurnal effect applies to the VSC response has not been reported. The aim of this study was to investigate whether time of day had an effect on the magnitude of the VSC response in young subjects asymptomatic for musculoskeletal pathologies. The VSC response was recorded over 25 min while subjects remained seated on the stadiometer, at three times (morning, midday and afternoon) on the same day, in 48 asymptomatic volunteers aged 20-39 years. While no significant differences were calculated for the magnitude of the VSC responses on the three occasions of testing, differences in magnitude of VSC response may have been confounded by preloading activities. Where magnitude of the VSC response is the primary outcome measure, measurement protocols should control preloading activities and continue to conduct measurements at the same time of day, until further studies conclusively refute the existence of a diurnal effect.

References

Jun 1, 1992·Journal of Spinal Disorders·M MagnussonT Hansson
Nov 1, 1988·Ergonomics·M G BoocockJ D Troup
Sep 1, 1986·British Journal of Sports Medicine·P LeattJ G Troup
Mar 1, 1984·Spine·J A Eklund, E N Corlett
Jan 1, 1984·Chronobiology International·T ReillyJ D Troup
Aug 1, 1994·Ergonomics·A K BurtonM G Boocock
Nov 15, 1996·Spine·M L MagnussonM H Pope
Jun 1, 1996·Clinical Biomechanics·M Magnusson, MH Pope
Apr 9, 2002·Ergonomics·R KanlayanaphotpornI Fulton
Apr 12, 2003·Archives of Physical Medicine and Rehabilitation·Cintia L RodackiKaren Birch
May 15, 2003·Ergonomics·R KanlayanaphotpornI Fulton
Mar 11, 2005·Archives of Physical Medicine and Rehabilitation·Neil Edward FowlerAndré Luiz Rodacki
Sep 21, 2005·Applied Ergonomics·Thomas Reilly, Kirsten A Freeman
Aug 1, 1990·Clinical Biomechanics·M MagnussonT Hansson

❮ Previous
Next ❯

Citations

Jan 17, 2012·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Xinhai ShanYugang Wei
Oct 29, 2020·Human Factors·Pongsatorn SaiklangGillian Yeowell

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.