Perceived Submaximal Leg Extension Forces of Young Adult Males

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The purpose was to examine actual force (AF) productions of males for accuracy during leg extensions when given a random desired force (DF) ranging from 10-90% of maximal force (MF). Thirty males ranging from 18 to 30 years of age (M = 21.99 + 3.04), who had no previous experience with the test equipment, went through 9 randomly ordered submaximal efforts followed by a maximal effort. Correlations between AF and DF were high (r > .79) and test-retest was consistent between AF (r = .87) and MF (r = .90). Participants consistently undershot DF on both test and retest from ... continued below

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Ludke, Andrew William August 2001.

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  • Ludke, Andrew William

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The purpose was to examine actual force (AF) productions of males for accuracy during leg extensions when given a random desired force (DF) ranging from 10-90% of maximal force (MF). Thirty males ranging from 18 to 30 years of age (M = 21.99 + 3.04), who had no previous experience with the test equipment, went through 9 randomly ordered submaximal efforts followed by a maximal effort. Correlations between AF and DF were high (r > .79) and test-retest was consistent between AF (r = .87) and MF (r = .90). Participants consistently undershot DF on both test and retest from 20-90% and overshot DF only at 10%. Power functions revealed exponents of less than 1, indicating that AF grows slower then DF for both test .70 (.95 CI = .63 - .77) and retest .66 (.95 CI = .60 - .73). The results replicate a prior study by Jackson, Martin, Koziris, Ludtke, and Dishman (2001) that used incremental rather than random increases in DF.

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  • August 2001

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  • Sept. 25, 2007, 10:20 p.m.

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  • Jan. 16, 2014, 4:01 p.m.

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Ludke, Andrew William. Perceived Submaximal Leg Extension Forces of Young Adult Males, thesis, August 2001; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc2840/: accessed July 19, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; .