Eccentric muscle performance of elbow and knee muscle groups in untrained men and women

Judy W. Griffin, Robert E. Tooms, Roger Vander Zwaag, Tulio Bertorini, Mary L. O’Toole

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Maximal voluntary eccentric (ECC) and concentric (CON) capacity of knee and elbow muscle groups was investigated in healthy untrained men (N = 40) and women (N = 50), 21-67 yr of age. Purposes of the study were to describe torque-velocity and ECC-CON relationships, and to compare these relationships among muscle groups and between genders. Average torque was measured at angular velocities of 30° and 120°.s-1 from knee flexor (KF), knee extensor (KE), and elbow flexor (EF) muscle groups unilaterally, using an isokinetic protocol including gravity compensation. Data were analyzed using ANOVA procedures, and a significance level of 0.01 was used for all hypothesis testing. Torque-velocity relationships were similar for each muscle group and gender; i.e., ECC average torque did not change as a function of velocity and CONC torque decreased as angular velocity increased. Women generated greater ECC relative to CONC torque than men in upper and lower extremity muscle groups. Muscle groups differed in ECC relative to CONC capacity in both men and women, with ECC/CONC ratios being greater for KE and EF than KF. In all muscle groups, the magnitude of ECC-CONC differences increased as angular velocity increased. Genders differed in relative strength balance between muscle groups, with men exhibiting greater KF/KE and EF/KF torque ratios than women for both ECC and CONC actions. Results of this study contribute to the body of knowledge concerning ECC muscle performance in untrained adult men and women. Findings concerning gender and muscle group differences in muscle performance should provide useful information for interpreting results of isokinetic testing of untrained adults, as well as for guiding training and rehabilitation programs.

Original languageEnglish (US)
Pages (from-to)936-944
Number of pages9
JournalMedicine and Science in Sports and Exercise
Volume25
Issue number8
StatePublished - Jan 1 1993

Fingerprint

Elbow
Knee
Torque
Muscles
Gravitation
Lower Extremity
Analysis of Variance
Rehabilitation
Education

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Eccentric muscle performance of elbow and knee muscle groups in untrained men and women. / Griffin, Judy W.; Tooms, Robert E.; Zwaag, Roger Vander; Bertorini, Tulio; O’Toole, Mary L.

In: Medicine and Science in Sports and Exercise, Vol. 25, No. 8, 01.01.1993, p. 936-944.

Research output: Contribution to journalArticle

Griffin, Judy W. ; Tooms, Robert E. ; Zwaag, Roger Vander ; Bertorini, Tulio ; O’Toole, Mary L. / Eccentric muscle performance of elbow and knee muscle groups in untrained men and women. In: Medicine and Science in Sports and Exercise. 1993 ; Vol. 25, No. 8. pp. 936-944.
@article{839e1534866d474590c88ac1f523f43f,
title = "Eccentric muscle performance of elbow and knee muscle groups in untrained men and women",
abstract = "Maximal voluntary eccentric (ECC) and concentric (CON) capacity of knee and elbow muscle groups was investigated in healthy untrained men (N = 40) and women (N = 50), 21-67 yr of age. Purposes of the study were to describe torque-velocity and ECC-CON relationships, and to compare these relationships among muscle groups and between genders. Average torque was measured at angular velocities of 30° and 120°.s-1 from knee flexor (KF), knee extensor (KE), and elbow flexor (EF) muscle groups unilaterally, using an isokinetic protocol including gravity compensation. Data were analyzed using ANOVA procedures, and a significance level of 0.01 was used for all hypothesis testing. Torque-velocity relationships were similar for each muscle group and gender; i.e., ECC average torque did not change as a function of velocity and CONC torque decreased as angular velocity increased. Women generated greater ECC relative to CONC torque than men in upper and lower extremity muscle groups. Muscle groups differed in ECC relative to CONC capacity in both men and women, with ECC/CONC ratios being greater for KE and EF than KF. In all muscle groups, the magnitude of ECC-CONC differences increased as angular velocity increased. Genders differed in relative strength balance between muscle groups, with men exhibiting greater KF/KE and EF/KF torque ratios than women for both ECC and CONC actions. Results of this study contribute to the body of knowledge concerning ECC muscle performance in untrained adult men and women. Findings concerning gender and muscle group differences in muscle performance should provide useful information for interpreting results of isokinetic testing of untrained adults, as well as for guiding training and rehabilitation programs.",
author = "Griffin, {Judy W.} and Tooms, {Robert E.} and Zwaag, {Roger Vander} and Tulio Bertorini and O’Toole, {Mary L.}",
year = "1993",
month = "1",
day = "1",
language = "English (US)",
volume = "25",
pages = "936--944",
journal = "Medicine and Science in Sports and Exercise",
issn = "0195-9131",
publisher = "Lippincott Williams and Wilkins",
number = "8",

}

TY - JOUR

T1 - Eccentric muscle performance of elbow and knee muscle groups in untrained men and women

AU - Griffin, Judy W.

AU - Tooms, Robert E.

AU - Zwaag, Roger Vander

AU - Bertorini, Tulio

AU - O’Toole, Mary L.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - Maximal voluntary eccentric (ECC) and concentric (CON) capacity of knee and elbow muscle groups was investigated in healthy untrained men (N = 40) and women (N = 50), 21-67 yr of age. Purposes of the study were to describe torque-velocity and ECC-CON relationships, and to compare these relationships among muscle groups and between genders. Average torque was measured at angular velocities of 30° and 120°.s-1 from knee flexor (KF), knee extensor (KE), and elbow flexor (EF) muscle groups unilaterally, using an isokinetic protocol including gravity compensation. Data were analyzed using ANOVA procedures, and a significance level of 0.01 was used for all hypothesis testing. Torque-velocity relationships were similar for each muscle group and gender; i.e., ECC average torque did not change as a function of velocity and CONC torque decreased as angular velocity increased. Women generated greater ECC relative to CONC torque than men in upper and lower extremity muscle groups. Muscle groups differed in ECC relative to CONC capacity in both men and women, with ECC/CONC ratios being greater for KE and EF than KF. In all muscle groups, the magnitude of ECC-CONC differences increased as angular velocity increased. Genders differed in relative strength balance between muscle groups, with men exhibiting greater KF/KE and EF/KF torque ratios than women for both ECC and CONC actions. Results of this study contribute to the body of knowledge concerning ECC muscle performance in untrained adult men and women. Findings concerning gender and muscle group differences in muscle performance should provide useful information for interpreting results of isokinetic testing of untrained adults, as well as for guiding training and rehabilitation programs.

AB - Maximal voluntary eccentric (ECC) and concentric (CON) capacity of knee and elbow muscle groups was investigated in healthy untrained men (N = 40) and women (N = 50), 21-67 yr of age. Purposes of the study were to describe torque-velocity and ECC-CON relationships, and to compare these relationships among muscle groups and between genders. Average torque was measured at angular velocities of 30° and 120°.s-1 from knee flexor (KF), knee extensor (KE), and elbow flexor (EF) muscle groups unilaterally, using an isokinetic protocol including gravity compensation. Data were analyzed using ANOVA procedures, and a significance level of 0.01 was used for all hypothesis testing. Torque-velocity relationships were similar for each muscle group and gender; i.e., ECC average torque did not change as a function of velocity and CONC torque decreased as angular velocity increased. Women generated greater ECC relative to CONC torque than men in upper and lower extremity muscle groups. Muscle groups differed in ECC relative to CONC capacity in both men and women, with ECC/CONC ratios being greater for KE and EF than KF. In all muscle groups, the magnitude of ECC-CONC differences increased as angular velocity increased. Genders differed in relative strength balance between muscle groups, with men exhibiting greater KF/KE and EF/KF torque ratios than women for both ECC and CONC actions. Results of this study contribute to the body of knowledge concerning ECC muscle performance in untrained adult men and women. Findings concerning gender and muscle group differences in muscle performance should provide useful information for interpreting results of isokinetic testing of untrained adults, as well as for guiding training and rehabilitation programs.

UR - http://www.scopus.com/inward/record.url?scp=0027197867&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027197867&partnerID=8YFLogxK

M3 - Article

VL - 25

SP - 936

EP - 944

JO - Medicine and Science in Sports and Exercise

JF - Medicine and Science in Sports and Exercise

SN - 0195-9131

IS - 8

ER -