Differences between young and older women in maximal force, force fluctuations, and surface EMG during isometric knee extension and elbow flexion

Muscle & Nerve
Ilenia BazzucchiGiuseppe De Vito

Abstract

The loss of muscle strength with aging appears to be greater in the lower than upper limbs, but strength and its neural control have never been compared in the same population of individuals in both upper and lower limbs. The aim of this study was to investigate differences between eight young (20-31 years) and eight older (68-76 years) healthy women in maximal voluntary contraction (MVC), force fluctuations, median frequency (MDF) of the surface electromyogram (sEMG), and muscle fiber conduction velocity (MFCV) during sustained isometric elbow flexion (EF) and knee extension (KE), performed at moderate to high force intensity. Older women showed larger fluctuations of force with endurance and changes in sEMG pointing to less fatigue, especially at high level of force, with no differences between upper and lower extremities. This may have significant implications in the design of rehabilitation programs directed to this population.

References

Mar 1, 1979·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·L LarssonJ Karlsson
Mar 1, 1976·Journal of Neurophysiology·R J Elble, J E Randall
Oct 1, 1991·Journal of Applied Physiology·M V NariciP Cerretelli
Aug 1, 1991·Journal of Applied Physiology·W R FronteraW J Evans
Nov 1, 1990·Journal of Applied Physiology·R MerlettiC J De Luca
Mar 1, 1990·Journal of Applied Physiology·M SolomonowH Shoji
Jan 1, 1987·European Journal of Applied Physiology and Occupational Physiology·M J ZwartsH T Haenen
Jan 1, 1987·European Journal of Applied Physiology and Occupational Physiology·T Moritani, M Muro
Jun 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·J H Lawrence, C J De Luca
May 1, 1982·Acta Physiologica Scandinavica·G GrimbyB Saltin
May 1, 1995·Medical & Biological Engineering & Computing·R Merletti, L R Lo Conte
May 1, 1994·Age and Ageing·C A GreigS M Mahmud
Dec 1, 1995·Journal of Applied Physiology·G KamenC Patten
Jan 1, 1996·European Journal of Applied Physiology and Occupational Physiology·M BernardiR Baratta
May 1, 1997·Journal of Biomechanics·R M Enoka
Jan 7, 1998·Journal of Applied Physiology·R S LindleB F Hurley
Dec 24, 1997·Journal of the American Geriatrics Society·T RantanenE Heikkinen
Feb 6, 1998·Journal of Applied Physiology·S J De Serres, R M Enoka
Jan 14, 1999·Journal of Applied Physiology·N A LynchB F Hurley
Mar 31, 1999·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·M BernardiM Solomonow
Nov 24, 1999·Journal of Neurophysiology·Z ErimC J de Luca
Jan 7, 2000·Medical Engineering & Physics·D Farina, A Rainoldi
Apr 6, 2000·Journal of Applied Physiology·W R FronteraR Roubenoff
Apr 6, 2000·European Journal of Applied Physiology·G Kamen, A Roy
Apr 12, 2000·Journal of Neurophysiology·A E GravesR M Enoka
Jul 25, 2000·Journal of Applied Physiology·R A BurnettR M Enoka
Sep 2, 2000·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·L DupontC Pérot
Oct 12, 2000·Journal of Neurophysiology·A B SlifkinK M Newell
Jan 11, 2001·Muscle & Nerve·M BilodeauJ B Weeks
May 23, 2001·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·R Merletti, L R. Lo Conte
Dec 12, 2001·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·A RainoldiN Hogan
Dec 26, 2001·Muscle & Nerve·Roberto MerlettiMaria Pia Schieroni
Feb 14, 2002·Journal of Applied Physiology·Brian L Tracy, Roger M Enoka
May 17, 2002·Journal of Applied Physiology·G ScaglioniM V Narici
Jul 2, 2002·Journal of Neurophysiology·Anna M TaylorRoger M Enoka
Jul 23, 2002·Journal of Applied Physiology·Jennifer M Jakobi, Charles L Rice
Nov 20, 2002·Medicine and Science in Sports and Exercise·Evangelos A Christou, Les G Carlton
Dec 19, 2002·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Roger M EnokaBrian L Tracy
Feb 7, 2003·Journal of Applied Physiology·David E Vaillancourt, Karl M Newell
Feb 15, 2003·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·P SbriccoliF Felici
Apr 19, 2003·Journal of Neurophysiology·Anna M TaylorRoger M Enoka
Aug 9, 2003·Journal of Neurophysiology·John G SemmlerRoger M Enoka

❮ Previous
Next ❯

Citations

Aug 10, 2006·Experimental Brain Research·Brian L TracyJustus D Ortega
Oct 27, 2005·European Journal of Applied Physiology·Andrew P Lavender, Kazunori Nosaka
Feb 21, 2007·European Journal of Applied Physiology·Andrew P Lavender, Kazunori Nosaka
Oct 16, 2009·European Journal of Applied Physiology·Susan DewhurstGiuseppe De Vito
Aug 26, 2010·European Journal of Applied Physiology·Ruth E BrownJennifer M Jakobi
Feb 22, 2011·European Journal of Applied Physiology·Vitor S PainelliAntonio H Lancha
Aug 3, 2012·Journal of Sports Sciences·Charles R DuffyAndrea Macaluso
May 3, 2007·Medicine and Science in Sports and Exercise·Brian L TracySeth J Welsh
Dec 19, 2008·Medicine and Science in Sports and Exercise·Minoru ShinoharaMotoki Kouzaki
Jul 31, 2012·Medicine and Science in Sports and Exercise·Massimo SacchettiGiuseppe Pugliese
Jun 9, 2012·Respiratory Physiology & Neurobiology·David McSharryWalter T McNicholas
Apr 13, 2011·Archives of Gerontology and Geriatrics·Dinesh Samuel, Philip Rowe
Mar 6, 2010·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·M LentiM Sacchetti
Jun 26, 2007·Neuromuscular Disorders : NMD·N C VoermansB G van Engelen
Apr 24, 2007·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Ilenia BazzucchiFrancesco Felici
Feb 23, 2007·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Susan DewhurstDario Farina
Aug 22, 2012·Muscle & Nerve·Federica MenottiAndrea Macaluso
Mar 19, 2015·Journal of Strength and Conditioning Research·Neil D ClarkeDarren L Richardson
Jul 22, 2015·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·I BazzucchiM Sacchetti
Nov 2, 2012·Aging Clinical and Experimental Research·Dinesh SamuelMaria Stokes
Sep 7, 2014·European Journal of Applied Physiology·Federico QuinziPaola Sbriccoli
Nov 12, 2016·Ageing Research Reviews·Nathalie M C W Oomen, Jaap H van Dieën
Jul 16, 2008·Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics·Yukiko OyaEtsuo Horikawa
Apr 16, 2020·Journal of Physiological Anthropology·Ashirbad PradhanUsha Kuruganti
Nov 2, 2005·Journal of Applied Biomechanics·Marianne HaguenauerKarine M Monteil
Oct 20, 2010·Journal of Aging and Physical Activity·Lilian F WallersteinCarlos Ugrinowitsch
Nov 22, 2017·Scandinavian Journal of Medicine & Science in Sports·R R SmartJ M Jakobi
Sep 3, 2011·Journal of Applied Physiology·John W Chow, Dobrivoje S Stokic
Aug 28, 2020·International Journal of Sports Medicine·Paulo Eduardo Assis PereiraMarco Machado
Nov 3, 2020·International Journal of Sports Medicine·Rui WuGiuseppe De Vito

❮ 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.

Related Papers

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
E Todd SchroederFred R Sattler
European Journal of Applied Physiology
Ilenia BazzucchiFrancesco Felici
© 2021 Meta ULC. All rights reserved