Low-intensity eccentric contractions attenuate muscle damage induced by subsequent maximal eccentric exercise of the knee extensors in the elderly

Chung-Ching Chen, Wei Chin Tseng, Guan Ling Huang, Hsin Lian Chen, Kou Wei Tseng, Kazunori Nosaka

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

This study investigated whether low-intensity eccentric contractions of the knee extensors would attenuate the magnitude of muscle damage induced by maximal eccentric exercise of the same muscle performed 7 days later using elderly individuals. Healthy older men (66.4 ± 4.6 years) were assigned to control or experimental (Exp) group (n = 13 per group). The control group performed six sets of ten maximal eccentric contractions (MaxECC) of the knee extensors of non-dominant leg. The Exp group performed six sets of ten low-intensity eccentric contractions of the knee extensors on a leg extension machine by lowering a weight of 10 % maximal voluntary isometric knee extension strength (10 %ECC) 7 days prior to MaxECC. Changes in maximal voluntary isokinetic concentric torque (MVC-CON), angle at peak torque, range of motion (ROM), upper thigh circumference, muscle soreness, plasma creatine kinase activity and myoglobin (Mb) concentration and B-mode ultrasound echo-intensity before and for 5 days after MaxECC were compared between groups by a mixed factor ANOVA. No significant changes in any variables were observed following 10 %ECC. Following MaxECC, all variables changed significantly, and changes in all variables except for angle at peak torque were significantly different between groups. MVC-CON and ROM decreased smaller and recovered faster (P < 0.05) for Exp than control group, and changes in other variables were smaller (P < 0.05) for Exp group compared with control group. These results suggest that preconditioning knee extensor muscles with low-intensity eccentric contractions was effective for attenuating muscle damage induced by subsequent MaxECC of the knee extensors for elderly individuals.

Original languageEnglish
Pages (from-to)1005-1015
Number of pages11
JournalEuropean Journal of Applied Physiology
Volume113
Issue number4
DOIs
Publication statusPublished - 2013 Apr 1

Fingerprint

Muscle Contraction
Knee
Exercise
Torque
Muscles
Articular Range of Motion
Control Groups
Leg
Myoglobin
Myalgia
Creatine Kinase
Thigh
Analysis of Variance
Weights and Measures

Keywords

  • Creatine kinase
  • Delayed onset muscle soreness
  • Muscle strength
  • Preconditioning
  • Protective effect

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Orthopedics and Sports Medicine
  • Physiology (medical)

Cite this

Low-intensity eccentric contractions attenuate muscle damage induced by subsequent maximal eccentric exercise of the knee extensors in the elderly. / Chen, Chung-Ching; Tseng, Wei Chin; Huang, Guan Ling; Chen, Hsin Lian; Tseng, Kou Wei; Nosaka, Kazunori.

In: European Journal of Applied Physiology, Vol. 113, No. 4, 01.04.2013, p. 1005-1015.

Research output: Contribution to journalArticle

Chen, Chung-Ching ; Tseng, Wei Chin ; Huang, Guan Ling ; Chen, Hsin Lian ; Tseng, Kou Wei ; Nosaka, Kazunori. / Low-intensity eccentric contractions attenuate muscle damage induced by subsequent maximal eccentric exercise of the knee extensors in the elderly. In: European Journal of Applied Physiology. 2013 ; Vol. 113, No. 4. pp. 1005-1015.
@article{cdb978b0c6c54bfe92a9d48426608478,
title = "Low-intensity eccentric contractions attenuate muscle damage induced by subsequent maximal eccentric exercise of the knee extensors in the elderly",
abstract = "This study investigated whether low-intensity eccentric contractions of the knee extensors would attenuate the magnitude of muscle damage induced by maximal eccentric exercise of the same muscle performed 7 days later using elderly individuals. Healthy older men (66.4 ± 4.6 years) were assigned to control or experimental (Exp) group (n = 13 per group). The control group performed six sets of ten maximal eccentric contractions (MaxECC) of the knee extensors of non-dominant leg. The Exp group performed six sets of ten low-intensity eccentric contractions of the knee extensors on a leg extension machine by lowering a weight of 10 {\%} maximal voluntary isometric knee extension strength (10 {\%}ECC) 7 days prior to MaxECC. Changes in maximal voluntary isokinetic concentric torque (MVC-CON), angle at peak torque, range of motion (ROM), upper thigh circumference, muscle soreness, plasma creatine kinase activity and myoglobin (Mb) concentration and B-mode ultrasound echo-intensity before and for 5 days after MaxECC were compared between groups by a mixed factor ANOVA. No significant changes in any variables were observed following 10 {\%}ECC. Following MaxECC, all variables changed significantly, and changes in all variables except for angle at peak torque were significantly different between groups. MVC-CON and ROM decreased smaller and recovered faster (P < 0.05) for Exp than control group, and changes in other variables were smaller (P < 0.05) for Exp group compared with control group. These results suggest that preconditioning knee extensor muscles with low-intensity eccentric contractions was effective for attenuating muscle damage induced by subsequent MaxECC of the knee extensors for elderly individuals.",
keywords = "Creatine kinase, Delayed onset muscle soreness, Muscle strength, Preconditioning, Protective effect",
author = "Chung-Ching Chen and Tseng, {Wei Chin} and Huang, {Guan Ling} and Chen, {Hsin Lian} and Tseng, {Kou Wei} and Kazunori Nosaka",
year = "2013",
month = "4",
day = "1",
doi = "10.1007/s00421-012-2517-3",
language = "English",
volume = "113",
pages = "1005--1015",
journal = "European Journal of Applied Physiology",
issn = "1439-6319",
publisher = "Springer Verlag",
number = "4",

}

TY - JOUR

T1 - Low-intensity eccentric contractions attenuate muscle damage induced by subsequent maximal eccentric exercise of the knee extensors in the elderly

AU - Chen, Chung-Ching

AU - Tseng, Wei Chin

AU - Huang, Guan Ling

AU - Chen, Hsin Lian

AU - Tseng, Kou Wei

AU - Nosaka, Kazunori

PY - 2013/4/1

Y1 - 2013/4/1

N2 - This study investigated whether low-intensity eccentric contractions of the knee extensors would attenuate the magnitude of muscle damage induced by maximal eccentric exercise of the same muscle performed 7 days later using elderly individuals. Healthy older men (66.4 ± 4.6 years) were assigned to control or experimental (Exp) group (n = 13 per group). The control group performed six sets of ten maximal eccentric contractions (MaxECC) of the knee extensors of non-dominant leg. The Exp group performed six sets of ten low-intensity eccentric contractions of the knee extensors on a leg extension machine by lowering a weight of 10 % maximal voluntary isometric knee extension strength (10 %ECC) 7 days prior to MaxECC. Changes in maximal voluntary isokinetic concentric torque (MVC-CON), angle at peak torque, range of motion (ROM), upper thigh circumference, muscle soreness, plasma creatine kinase activity and myoglobin (Mb) concentration and B-mode ultrasound echo-intensity before and for 5 days after MaxECC were compared between groups by a mixed factor ANOVA. No significant changes in any variables were observed following 10 %ECC. Following MaxECC, all variables changed significantly, and changes in all variables except for angle at peak torque were significantly different between groups. MVC-CON and ROM decreased smaller and recovered faster (P < 0.05) for Exp than control group, and changes in other variables were smaller (P < 0.05) for Exp group compared with control group. These results suggest that preconditioning knee extensor muscles with low-intensity eccentric contractions was effective for attenuating muscle damage induced by subsequent MaxECC of the knee extensors for elderly individuals.

AB - This study investigated whether low-intensity eccentric contractions of the knee extensors would attenuate the magnitude of muscle damage induced by maximal eccentric exercise of the same muscle performed 7 days later using elderly individuals. Healthy older men (66.4 ± 4.6 years) were assigned to control or experimental (Exp) group (n = 13 per group). The control group performed six sets of ten maximal eccentric contractions (MaxECC) of the knee extensors of non-dominant leg. The Exp group performed six sets of ten low-intensity eccentric contractions of the knee extensors on a leg extension machine by lowering a weight of 10 % maximal voluntary isometric knee extension strength (10 %ECC) 7 days prior to MaxECC. Changes in maximal voluntary isokinetic concentric torque (MVC-CON), angle at peak torque, range of motion (ROM), upper thigh circumference, muscle soreness, plasma creatine kinase activity and myoglobin (Mb) concentration and B-mode ultrasound echo-intensity before and for 5 days after MaxECC were compared between groups by a mixed factor ANOVA. No significant changes in any variables were observed following 10 %ECC. Following MaxECC, all variables changed significantly, and changes in all variables except for angle at peak torque were significantly different between groups. MVC-CON and ROM decreased smaller and recovered faster (P < 0.05) for Exp than control group, and changes in other variables were smaller (P < 0.05) for Exp group compared with control group. These results suggest that preconditioning knee extensor muscles with low-intensity eccentric contractions was effective for attenuating muscle damage induced by subsequent MaxECC of the knee extensors for elderly individuals.

KW - Creatine kinase

KW - Delayed onset muscle soreness

KW - Muscle strength

KW - Preconditioning

KW - Protective effect

UR - http://www.scopus.com/inward/record.url?scp=84876272984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876272984&partnerID=8YFLogxK

U2 - 10.1007/s00421-012-2517-3

DO - 10.1007/s00421-012-2517-3

M3 - Article

VL - 113

SP - 1005

EP - 1015

JO - European Journal of Applied Physiology

JF - European Journal of Applied Physiology

SN - 1439-6319

IS - 4

ER -