title: Concurrent validity of tests to measure the coordinated exertion of force by computerized target pursuit.
abstract: The purpose of this study was to examine concurrent validity of a new test for coordinated exertion of force. Coordinated exertion of force was measured using computerized target pursuit from the following viewpoints: the relations between the new test, a pursuit-rotor test, and a pegboard test. College students (24 men and 24 women) were required to change their grip exertion to match changing demand values (displayed in either a bar chart or a wave form) appearing on the display of a personal computer. The sum of the differences between the demanded values and grip-exertion values for 25 sec. was a parameter to evaluate the new test. The reliabilities of the new test, the pursuit-rotor, and the pegboard test were acceptable (ICC = .70 to .99). Scores on the new test showed low correlations with the pursuit-rotor and the pegboard test. The relation between the two different displays in the new test was significant but low (r = .49, p < .05). It was inferred that the new test measures a somewhat different ability than that measured by the pursuit-rotor and pegboard test and that the abilities tested by the types of displayed demand values are somewhat different.
authors.affiliation: Akita Prefectural University, 241-7 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita City, Akita 010-0195, Japan. nagasawa@akita-pu.ac.jp
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Nagasawa
authors.forename: Shinichi
authors.initials: S
authors.lastname: Demura
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Kitabayashi
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D001330:Electronic Data Processing; D005260:Female; D018737:Hand Strength / Q000502:physiology*; D006801:Humans; D008297:Male; D005082:Physical Exertion / Q000502:physiology*; D015203:Reproducibility of Results