Academic journal article Research Quarterly for Exercise and Sport

Pedal Reaction Forces during Exercise on the Elliptical Trainer

Academic journal article Research Quarterly for Exercise and Sport

Pedal Reaction Forces during Exercise on the Elliptical Trainer

Article excerpt

The elliptical trainer was developed as a cardiovascular machine that could provide an exercise similar to running but with reduced impact forces. There is little or no information in the literature on the actual forces generated at the pedal during exercise on an elliptical trainer. The purpose of the present study was to measure pedal reaction forces on the elliptical trainer under three workload conditions. Twenty-six college-aged, apparently healthy participants (age = 22.19 [+ or -] or -] .85 years; weight = 74.04 [+ or -] 19.33 kg; height = 169.85 [+ or -] 9.75 cm) with no previous knee injury and with previous experience on an elliptical trainer volunteered for this study. Kinetic data including vertical and anteroposterior forces were collected using a custom built orthogonal force transducer located under the right foot pedal on the elliptical trainer. Alter a practice and warm-up session on the elliptical, each participant strode for 2 m in at three incline levels: 13[degrees], 25[degrees], and 40[degrees]. During this time, transducer data were collected for 10 s (600 Hz) while participants matched a cadence of 120 steps per minute. The peak anterior shear force at 13[degrees], 25[degrees], and 40[degrees] were 148.08 [+ or -] 2.72 N (.206 body weight [BW]), 155.25 [+ or -] 13.91 N (.215 BW), and 180.69 [+ or -] 16.26 N (.259 BW), respectively, and even though there was a tendency toward an increase in the higher ramp positions, these differences were not significant. …

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