Can J Appl Physiol. 1995 Dec;20(4):429-39.

Concentric and eccentric knee extension strength in older and younger men and women.

Porter MM, Myint A, Kramer JF, Vandervoort AA.

Source

Faculty of Kinesiology, University of Western Ontario, London.

Abstract

Decrements in isometric and concentric (Conc) muscular strength with increased age are well documented. However, little information is available on the effects of aging on eccentric (Ecc) strength, even though Ecc or lengthening muscle actions are used in most physical activities. This study examined Conc and Ecc peak torques (PT) during knee extension at 90 degrees/sec in healthy older (62 to 89 yrs) and younger (20 to 29 yrs) men and women. Conc PT decreased more with age than did Ecc (p < 0.01), for both men and women. PT values for the older men and women as a percentage of those of the younger ones were 58.3 and 46.6% for Conc, and 75.1 and 61.7% for Ecc, respectively. These age differences need to be considered during isokinetic evaluations of Conc versus Ecc strength. Other muscle groups should be investigated, and mechanisms remain to be determined.

PMID:: 8563675; [PubMed - indexed for MEDLINE]

Publication Types, MeSH Terms

Publication Types

MeSH Terms

LinkOut - more resources

Other Literature Sources

COS Scholar Universe

Medical

Seniors' Health - MedlinePlus Health Information

Supplemental Content

Save items

Related citations in PubMed

Age and gender comparisons of muscle strength in 654 women and men aged 20-93 yr. [J Appl Physiol. 1997]
Age and gender comparisons of muscle strength in 654 women and men aged 20-93 yr.
Lindle RS, Metter EJ, Lynch NA, Fleg JL, Fozard JL, Tobin J, Roy TA, Hurley BF. J Appl Physiol. 1997 Nov; 83(5):1581-7.
Eccentric muscle performance of elbow and knee muscle groups in untrained men and women. [Med Sci Sports Exerc. 1993]
Eccentric muscle performance of elbow and knee muscle groups in untrained men and women.
Griffin JW, Tooms RE, vander Zwaag R, Bertorini TE, O'Toole ML. Med Sci Sports Exerc. 1993 Aug; 25(8):936-44.
Muscle activation and force production during bilateral and unilateral concentric and isometric contractions of the knee extensors in men and women at different ages. [Electromyogr Clin Neurophysiol...]
Muscle activation and force production during bilateral and unilateral concentric and isometric contractions of the knee extensors in men and women at different ages.
Häkkinen K, Kraemer WJ, Newton RU. Electromyogr Clin Neurophysiol. 1997 Apr-May; 37(3):131-42.
Review Age, gender, and muscular strength. [J Gerontol A Biol Sci Med Sci....]
Review Age, gender, and muscular strength.
Hurley BF. J Gerontol A Biol Sci Med Sci. 1995 Nov; 50 Spec No:41-4.
Review Preservation of eccentric strength in older adults: Evidence, mechanisms and implications for training and rehabilitation. [Exp Gerontol. 2010]
Review Preservation of eccentric strength in older adults: Evidence, mechanisms and implications for training and rehabilitation.
Roig M, Macintyre DL, Eng JJ, Narici MV, Maganaris CN, Reid WD. Exp Gerontol. 2010 Jun; 45(6):400-9. Epub 2010 Mar 18.

See reviews... See all...

Cited by 2 PubMed Central articles

Contractile and elastic ankle joint muscular properties in young and older adults. [PLoS One. 2011]
Contractile and elastic ankle joint muscular properties in young and older adults.
Hasson CJ, Miller RH, Caldwell GE. PLoS One. 2011 Jan 11; 6(1):e15953. Epub 2011 Jan 11.
Review Preservation of eccentric strength in older adults: Evidence, mechanisms and implications for training and rehabilitation. [Exp Gerontol. 2010]
Review Preservation of eccentric strength in older adults: Evidence, mechanisms and implications for training and rehabilitation.
Roig M, Macintyre DL, Eng JJ, Narici MV, Maganaris CN, Reid WD. Exp Gerontol. 2010 Jun; 45(6):400-9. Epub 2010 Mar 18.

Related information

Related Citations
Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
Cited in PMC
Full-text articles in the PubMed Central Database that cite the current articles.

Recent activity

Clear Turn Off Turn On

Concentric and eccentric knee extension strength in older and younger men and wo...
Concentric and eccentric knee extension strength in older and younger men and women.
Can J Appl Physiol. 1995 Dec ;20(4):429-39.

PubMed
How to measure and predict the molar absorption coefficient of a protein.
How to measure and predict the molar absorption coefficient of a protein.
Protein Sci. 1995 Nov ;4(11):2411-23.

PubMed
Publishing research supported by the tobacco industry.
Publishing research supported by the tobacco industry.
BMJ. 1996 Jan 20 ;312(7024):133-4.

PubMed
Cost effective Internet access and video conferencing for a community cancer net...
Cost effective Internet access and video conferencing for a community cancer network.
Proc Annu Symp Comput Appl Med Care. 1995 :781-4.

PubMed
Analysis of medical decision making: a cognitive perspective on medical informat...
Analysis of medical decision making: a cognitive perspective on medical informatics.
Proc Annu Symp Comput Appl Med Care. 1995 :193-7.

PubMed

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

PubMed

Result Filters

Display Settings:

Send to: