QUADRICEPS LOW-FREQUENCY FATIGUE AND MUSCLE PAIN ARE CONTRACTION-TYPE-DEPENDENT

Masaki IGUCHI; Richard K SHIELDS

doi:10.1002/mus.21679

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QUADRICEPS LOW-FREQUENCY FATIGUE AND MUSCLE PAIN ARE CONTRACTION-TYPE-DEPENDENT

Journal article

Peer reviewed

QUADRICEPS LOW-FREQUENCY FATIGUE AND MUSCLE PAIN ARE CONTRACTION-TYPE-DEPENDENT

Masaki IGUCHI and Richard K SHIELDS

Muscle & nerve, Vol.42(2), pp.230-238

2010

DOI: 10.1002/mus.21679

PMCID: PMC2989463

PMID: 20544933

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Abstract

Eccentric contractions are thought to induce greater low-frequency fatigue (LFF) and delayed-onset muscle soreness (DOMS) than concentric contractions. In this study we induced a similar amount of eccentric quadriceps muscle fatigue during either a concentric or eccentric fatigue task to compare LFF and DOMS. Subjects (n = 22) performed concentric or eccentric fatigue tasks using 75% of the pre-fatigue maximal voluntary contraction (MVC) torque, and both tasks ended when the MVC eccentric torque decreased by 25% pre-fatigue. When subjects reached the failure criterion during the eccentric and concentric tasks, the concentric MVC was 78 +/- 9.8% and 64 +/- 8.4% of initial, respectively. LFF was greater after the concentric than the eccentric protocols (22 +/- 12.4% and 15 +/- 7.6% increase, respectively; P < 0.01). DOMS was over 100% greater for the eccentric protocol. These results indicate that DOMS is not dependent on the events that contribute to LFF.

Fundamental and applied biological sciences. Psychology

Biological and medical sciences

Vertebrates: osteoarticular system, musculoskeletal system

Striated muscle. Tendons

Details

Title: Subtitle: QUADRICEPS LOW-FREQUENCY FATIGUE AND MUSCLE PAIN ARE CONTRACTION-TYPE-DEPENDENT
Creators: Masaki IGUCHI - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, 1-252 Medical Education Building, Iowa City, Iowa 52242-1190, United States
Richard K SHIELDS - Graduate Program in Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, 1-252 Medical Education Building, Iowa City, Iowa 52242-1190, United States
Resource Type: Journal article
Publication Details: Muscle & nerve, Vol.42(2), pp.230-238
DOI: 10.1002/mus.21679
PMID: 20544933
PMCID: PMC2989463
NLM abbreviation: Muscle Nerve
ISSN: 0148-639X
eISSN: 1097-4598
Publisher: Wiley; Hoboken, NJ
Language: English
Date published: 2010
Academic Unit: Orthopedics and Rehabilitation; Physical Therapy and Rehabilitation Science
Record Identifier: 9984047748302771

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