Determining optimal load for a constant-load cycle ergometer test relative to isotonic leg strength

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dc.contributor.authorWagner, Holly A.en
dc.contributor.departmentExercise Physiologyen
dc.date.accessioned2014-03-14T21:27:46Zen
dc.date.adate2009-01-24en
dc.date.available2014-03-14T21:27:46Zen
dc.date.issued1992en
dc.date.rdate2009-01-24en
dc.date.sdate2009-01-24en
dc.description.abstractThis study investigated the determination of an optimal resistive force for use during a short-term, high-intensity cycling power test. Twenty-four college females [age (yrs) x̄=22.0 ± 0.50; weight (kg) x̄=60.3 ± 1.46] gave consent and participated in a 1 repetition maximum (RM) test of the leg extensors and 5 maximal 15 s cycling tests using a modified Monark cycle ergometer. The 1 RM test was performed using a Nautilus leg extensor machine. Even increments between six to ten % 1RM test were utilized to determine the resistive force applied to the flywheel. The 5 tests were divided into a 2 testing sessions occurring at least 48 h apart. Each subject warmed-up at 50 - 60 rpms for 2 - 5 minutes without resistance prior to testing. Each test consisted of a maximal cycling bout of 15 s with 20 minutes rest between tests. The variables measured included peak power (PP), time to peak power (TTPP), power fatigue rate (PFR), power fatigue index (PFI), and average power (AP). These values were collected by a microcomputer interfaced with the cycle ergometer. In general, PP decreased at a resistance greater than 9 % 1RM. The average reported PP values were 363±15, 413±19, 465±19, 520±21, and 460±41 for loads 6 to 10 % 1RM respectively. Similar results were reported for AP. The differences in PP for loads between 8 and 10 % 1RM were statistically different. Results show that PP varies based on loads of % 1RM and the optimal range is between 8 and 10% 1RM.en
dc.description.degreeMaster of Scienceen
dc.format.extentvi, 104 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-01242009-063426en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01242009-063426/en
dc.identifier.urihttp://hdl.handle.net/10919/40762en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1992.W346.pdfen
dc.relation.isformatofOCLC# 26613484en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1992.W346en
dc.subject.lcshCyclingen
dc.subject.lcshDynamometeren
dc.subject.lcshIsometric exerciseen
dc.subject.lcshLegen
dc.subject.lcshMuscle strengthen
dc.titleDetermining optimal load for a constant-load cycle ergometer test relative to isotonic leg strengthen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineExercise Physiologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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