THE VALIDITY AND RELIABILYY OF THE ISOMETRIC LEG STRENGTH DYNAMOMETER IN SITTING POSITION FOR FIELD TEST

Authors

  • warayot laha 1 Program of Sport science and Exercise science, Faculty of Science and Technology. Loei Rajabhat University, Loei Province. 42000
  • Ashira HIRUNTRAKUL 2Branch of Sport science, Faculty of Applied science and engineer, Khon Kaen University, Nong Khai Campus, Thailand 43000
  • Anucha NINPRAPAN 2Branch of Sport science, Faculty of Applied science and engineer, Khon Kaen University, Nong Khai Campus, Thailand 43000

Abstract

The objective of this study was to determine the validity and reliability of the isometric leg strength dynamometer in sitting position for field test
The face validity had approved by five experts using Rovinelli and Hambleton method, the concurrent validity was determined by compare with the standard device. The test-retest method, with in one week away was used to determine reliability coefficients. The total of 60 subjects (males=30, females=30) were participated to determine the validity and reliability of the device. They were enrolled in physical fitness test subjects, in the first semester of 2016 academic year, At Loei Rajabhat University.
The correlation coefficients of concurrent validity and reliability was analyzed by using Pearson product-moment correlation. The significance of correlation coefficients were calculated at the .05 level.The results were revealed that (1) The face validity was 1.0 (2) The concurrent validity was .809 (3)The reliability of the isometric leg strength dynamometer in sitting position for field test was.979 In conclusion, the Isometric leg strength dynamometer in sitting position for field test which is constructed by research is qualified in measuring leg strength.

(Journal of Sports Science and Technology 2016; 16(2) : 23-32 )

KEY WORDS: Validity, Reliability, Leg strength dynamometer

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Published

2016-12-23

Issue

Volum 16 , No.2 , December 2016

Section

Sports Biomechanics