Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction.

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Abstract Text:

Chien-Ting Huang,Chien-Chun Huang,Ming-Shing Young,Ing-Shiou Hwang,Chien-Ting Huang,Chien-Chun Huang,Ming-Shing Young,Ing-Shiou Hwang,Chien-Ting Huang,Chien-Chun Huang,Ming-Shing Young,Ing-Shiou Hwang,

In reference to electromyographic measurement, the study was conducted to reassess differences in the behavior of fatigue-related neuromuscular function between young and elderly humans with limb acceleration (LA). Fourteen young and fourteen elderly subjects performed sustained index abduction at 75% of their maximal voluntary contractions (MVC) until task failure. Measures of neuromuscular function, including temporal/spectral features of muscle activity of the first dorsal interosseous (FDI) and LA of the index and hand, were monitored. The results showed a manifest fatigue-induced increase in LA of the index in the elderly group, but not in the young group. In contrast, only the young group developed a significant increase in amplitude of the electromyography (EMG) until task failure. Spectral analyses of LA in the index reflected marked age-dependent reorganization following muscle fatigue, with a greater reduction of relative spectral amplitude of LA in the range of 20-40 Hz, but a lesser reduction in coherence between EMG and LA in the elderly group. In line with fatigue-associated restructuring of LA, the mechanical coupling of the metacarpophalangeal joint was more severely undermined in the elderly group than in the young group. The present study manifested an age-related difference in the relative contributions of neural versus mechanical factors to muscle fatigue. Subsequent to a high-level sustained submaximal isometric contraction, a predominant mechanical failure of the musculotendon complex in the elderly was featured with LA, whereas EMG measurement characterized prevailing impairment of neuromuscular propagation in the young.

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Publishing Authors By Initials

CT Huang,CC Huang,MS Young,IS Hwang,CT Huang,CC Huang,MS Young,IS Hwang,CT Huang,CC Huang,MS Young,IS Hwang,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: European journal of applied physiology

VOLUME: 100

Page Numbers: 675-83

Journal Abbreviation: Eur. J. Appl. Physiol.

ISSN: 1439-6319

DAY: 18

MONTH: 04

YEAR: 2007

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 100954790

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction.

AFFILIATION: Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan.

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Eur J Appl Physiol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction Related Publications

• A simple way to compute protein dynamics without a mechanical model.
• Age effect on fatigue-induced limb acceleration as a consequence of high-level sustained submaximal contraction.
• Auranofin, as an anti-rheumatic gold compound, suppresses LPS-induced homodimerization of TLR4.
• Biodegradation of benzo[a]pyrene with immobilized laccase: genotoxicity of the products in HaCat and A3 cells.
• Characteristics of Chlamydia trachomatis infection in hospitalized infants with lower respiratory tract infection.
• Clinical implications and risk factors of extended-spectrum beta-lactamase-producing Klebsiella pneumoniae infection in children: a case-control retrospective study in a medical center in southern Taiwan.
• Comparative study of immobilized Trametes versicolor laccase on nanoparticles and kaolinite.
• Complete mitochondrial genome of a Chinese scorpion Mesobuthus martensii (Chelicerata, Scorpiones, Buthidae).
• Complete mitochondrial genome of a troglobite millipede Antrokoreana gracilipes (Diplopoda, Juliformia, Julida), and juliformian phylogeny.
• Controlled delivery of a hydrophilic drug from a biodegradable microsphere system by supercritical anti-solvent precipitation technique.
• Differential modulation of Nods signaling pathways by fatty acids in human colonic epithelial HCT116 cells.
• Effects of thiol compounds on in vitro maturation of canine oocytes collected from different reproductive stages.
• Ethmoid sinus mucocele presenting as transient monoocular altitudinal hemianopia.
• G551D and G1349D, two CF-associated mutations in the signature sequences of CFTR, exhibit distinct gating defects.
• Human TopBP1 participates in cyclin E/CDK2 activation and preinitiation complex assembly during G1/S transition.
• Intramuscular hemangioma of the lower lip.
• Location of the zygomaticofacial foramen related to malar reduction.
• Mutations that decrease DNA binding of the processivity factor of the herpes simplex virus DNA polymerase reduce viral yield, alter the kinetics of viral DNA replication, and decrease the fidelity of DNA replication.
• Occurrence of tetrodotoxin and paralytic shellfish poisons in a gastropod implicated in food poisoning in southern Taiwan.
• Phototransformation of 2,4,6-trinitrotoluene: sensitized by riboflavin under different irradiation spectral range.
• Revisited ITS2 phylogeny of Anopheles (Anopheles) Hyrcanus group mosquitoes: reexamination of unidentified and misidentified ITS2 sequences.
• The two ATP binding sites of cystic fibrosis transmembrane conductance regulator (CFTR) play distinct roles in gating kinetics and energetics.
• Use of whey permeate for cultivating Ganoderma lucidum mycelia.
• [4-t-Butylphenyl]-N-(4-imidazol-1-yl phenyl)sulfonamide (ISCK03) inhibits SCF/c-kit signaling in 501mel human melanoma cells and abolishes melanin production in mice and brownish guinea pigs.
• [Concept analysis of insight]
• [Effects of an exercise program on body composition, cardiopulmonary function, and physical fitness for obese children]
• [Prevalence and risk factors of gallbladder polyp in adults living in Daegu and Gyeongbuk provinces]
• [Prevention of hepatocellular carcinoma]
• [Serum hepatitis B virus DHA level and hepatocellulor carcinoma]
• [The effects of the inhalation method using essential oils on blood pressure and stress responses of clients with essential hypertension]