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Reliability and Validity of Two Isometric Squat Tests by ANTHONY J. BLAZEVICH; NICHOLAS GILL; ROBERT U. NEWTON is a Medicine article available to read on EtoBox.

What is Reliability and Validity of Two Isometric Squat Tests about?

The purpose of the present study was first to examine the reliability of isometric squat (IS) and isometric forward hack squat (IFHS) tests to determine if repeated measures on the same subjects yielded reliable results. The second purpose was to examine the relation between isometric and dynamic measures of strength to assess validity. Fourteen male subjects performed maximal IS and IFHS tests on 2 occasions and 1 repetition maximum (1-RM) free-weight squat and forward hack squat (FHS) tests on 1 occasion. The 2 tests were found to be highly reliable (intraclass correlation coefficient [ICC] IS ϭ 0.97 and ICC IFHS ϭ 1.00). There was a strong relation between average IS and 1-RM squat performance, and between IFHS and 1-RM FHS performance (r squat ϭ 0.77, r FHS ϭ 0.76; p Ͻ 0.01), but a weak relation between squat and FHS test performances (r Ͻ 0.55). There was also no difference between observed 1-RM values and those predicted by our regression equations. Errors in predicting 1-RM performance were in the order of 8.5% (standard error of the estimate [SEE] ϭ 13.8 kg) and 7.3% (SEE ϭ 19.4 kg) for IS and IFHS respectively. Correlations between isometric and 1-RM tests were not of suff

Who reads Reliability and Validity of Two Isometric Squat Tests?

Author

ANTHONY J. BLAZEVICH; NICHOLAS GILL; ROBERT U. NEWTON

Publisher

Ovid Technologies (Wolters Kluwer Health)

Published

2002

Language

EN

Field

Medicine (Health Sciences)