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Evaluation of the physiological responses to a 20-minute workout on the Cross-X machine

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Author(s)
Shatzer, Jenna
Advisor(s)
Cadwell, Kristi; Foster, Carl; Porcari, John
Degree
MS
Date
Jun 10, 2009
Subject(s)
Exercise tests; Exercise -- Physiological aspects; Exercise -- Equipment and supplies
Abstract
The Cross-X is an exercise modality being marketed as an effective tool for toning the legs and buttocks, as well as providing a cardiovascular workout. The purpose of this study was to examine the physiological responses of a 20-minute workout on the Cross-X machine. Subjects (N=16) performed a maximal treadmill exercise test and two separate sessions on the Cross-X. The first session was a 10-minute practice session to familiarize the subjects to the machine. The second session was a 20-minute workout along with the provided DVD that was separated into the Beginner portion and Intermediate portion. HR and %HRmax were significantly different (p<.05) between the Beginner and the Intermediate portions of the workout (106 bpm, 58% of HRmax and 113 bpm, 62% of HRmax, respectively). Also, ratings of perceived exertion were significantly different between the two portions of the workout (9.6 and 10.3, respectively). The results show that although the Cross-X workout did not meet all ACSM recommendations for a cardiovascular workout, it can still provide a sufficient cardiovascular workout for lower fit individuals.
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http://digital.library.wisc.edu/1793/46604 
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