Cross-validation of equations for predicting isokinetic peak torque in men

Dona J. Housh; Terry J. Housh; Joseph P. Weir; Jeff R. Stout; Loree L. Weir; Glen O. Johnson

doi:10.3233/IES-1994-4404

Cross-validation of equations for predicting isokinetic peak torque in men

Dona J. Housh, Terry J. Housh, Joseph P. Weir, Jeff R. Stout, Loree L. Weir, Glen O. Johnson

Oral Biology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The purpose of this study was to quantify the errors associated with multiple regression equations that use gender, age, height, and weight for estimating peak torque (PT) for leg extension and flexion. Forty-three men (mean age ± SO 24.4 ± 4.7 years) volunteered as subjects. Peak torque values for extension and flexion of the dominant leg at 60 and 180 deg/sec were determined using a Cybex II dynamometer (Cybex, Ronkonkoma, NY). The results of the cross-validation analyses indicated that the total error (TE) values for the equations ranged from 21.4 to 24.6 ft-lbs (14.8 to 18.9% of mean) for leg extension and 20.6 to 32.8 ft-lbs (31.0 to 52.0% of the mean) for leg flexion. The magnitude of the TE values indicate that these equations should be used only in situations where a gross estimation of PT may be helpful.

Original language	English (US)
Pages (from-to)	146-149
Number of pages	4
Journal	Isokinetics and Exercise Science
Volume	4
Issue number	4
DOIs	https://doi.org/10.3233/IES-1994-4404
State	Published - 1994

Keywords

Isokinetics
Peak torque
Prediction equation

ASJC Scopus subject areas

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

Access to Document

10.3233/IES-1994-4404

Cite this

@article{50b03e2311bf4b82bed5c83604a8fa6c,

title = "Cross-validation of equations for predicting isokinetic peak torque in men",

abstract = "The purpose of this study was to quantify the errors associated with multiple regression equations that use gender, age, height, and weight for estimating peak torque (PT) for leg extension and flexion. Forty-three men (mean age ± SO 24.4 ± 4.7 years) volunteered as subjects. Peak torque values for extension and flexion of the dominant leg at 60 and 180 deg/sec were determined using a Cybex II dynamometer (Cybex, Ronkonkoma, NY). The results of the cross-validation analyses indicated that the total error (TE) values for the equations ranged from 21.4 to 24.6 ft-lbs (14.8 to 18.9% of mean) for leg extension and 20.6 to 32.8 ft-lbs (31.0 to 52.0% of the mean) for leg flexion. The magnitude of the TE values indicate that these equations should be used only in situations where a gross estimation of PT may be helpful.",

keywords = "Isokinetics, Peak torque, Prediction equation",

author = "Housh, {Dona J.} and Housh, {Terry J.} and Weir, {Joseph P.} and Stout, {Jeff R.} and Weir, {Loree L.} and Johnson, {Glen O.}",

year = "1994",

doi = "10.3233/IES-1994-4404",

language = "English (US)",

volume = "4",

pages = "146--149",

journal = "Isokinetics and Exercise Science",

issn = "0959-3020",

publisher = "SAGE Publications Ltd",

number = "4",

}

TY - JOUR

T1 - Cross-validation of equations for predicting isokinetic peak torque in men

AU - Housh, Dona J.

AU - Housh, Terry J.

AU - Weir, Joseph P.

AU - Stout, Jeff R.

AU - Weir, Loree L.

AU - Johnson, Glen O.

PY - 1994

Y1 - 1994

N2 - The purpose of this study was to quantify the errors associated with multiple regression equations that use gender, age, height, and weight for estimating peak torque (PT) for leg extension and flexion. Forty-three men (mean age ± SO 24.4 ± 4.7 years) volunteered as subjects. Peak torque values for extension and flexion of the dominant leg at 60 and 180 deg/sec were determined using a Cybex II dynamometer (Cybex, Ronkonkoma, NY). The results of the cross-validation analyses indicated that the total error (TE) values for the equations ranged from 21.4 to 24.6 ft-lbs (14.8 to 18.9% of mean) for leg extension and 20.6 to 32.8 ft-lbs (31.0 to 52.0% of the mean) for leg flexion. The magnitude of the TE values indicate that these equations should be used only in situations where a gross estimation of PT may be helpful.

AB - The purpose of this study was to quantify the errors associated with multiple regression equations that use gender, age, height, and weight for estimating peak torque (PT) for leg extension and flexion. Forty-three men (mean age ± SO 24.4 ± 4.7 years) volunteered as subjects. Peak torque values for extension and flexion of the dominant leg at 60 and 180 deg/sec were determined using a Cybex II dynamometer (Cybex, Ronkonkoma, NY). The results of the cross-validation analyses indicated that the total error (TE) values for the equations ranged from 21.4 to 24.6 ft-lbs (14.8 to 18.9% of mean) for leg extension and 20.6 to 32.8 ft-lbs (31.0 to 52.0% of the mean) for leg flexion. The magnitude of the TE values indicate that these equations should be used only in situations where a gross estimation of PT may be helpful.

KW - Isokinetics

KW - Peak torque

KW - Prediction equation

UR - http://www.scopus.com/inward/record.url?scp=84974742284&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84974742284&partnerID=8YFLogxK

U2 - 10.3233/IES-1994-4404

DO - 10.3233/IES-1994-4404

M3 - Article

AN - SCOPUS:84974742284

SN - 0959-3020

VL - 4

SP - 146

EP - 149

JO - Isokinetics and Exercise Science

JF - Isokinetics and Exercise Science

IS - 4

ER -

Cross-validation of equations for predicting isokinetic peak torque in men

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this