Performance of female young adults in perception of efforts of varied nature and magnitudes

Shrawan Kumar, Maureen Simmonds, David Lechelt

Research output: Contribution to journalConference articlepeer-review


The normal young adult females performed maximal and graded exertions of the stoop lift, hand grip, and finger pinch. The levels of graded exertion required were 80%, 60%, 40% and 20% of maximal voluntary contraction (MVC). The sequence of all conditions were fully randomized. Each of the randomized conditions was tried three times in succession. The entire experiment was carried out on four different days at the same time of the day on Monday, Wednesday, Friday of one week and Friday of the next week. The data obtained were subjected to descriptive and statistical analysis with t-test, analysis of variance, and correlation and regression. There were significant differences in the efforts produced in three different activities (p < 0.01). The levels of exertion from 20% to 80% were significantly different from each other (p < 0.01). However, there were no significant differences between the three trials of any given condition and the exertions produced on four different days.

Original languageEnglish (US)
Pages (from-to)793-797
Number of pages5
JournalProceedings of the Human Factors and Ergonomics Society
StatePublished - Dec 1 1993
EventProceedings of the 37th Annual Meeting of the Human Factors and Ergonomics Society - Seattle, WA, USA
Duration: Oct 11 1993Oct 15 1993

ASJC Scopus subject areas

  • Human Factors and Ergonomics


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