Abstract
264 The purpose of this investigation was to determine if visual passive distraction altered the ability to regulate exercise intensity when using ratings of perceived exertion (RPE) during a 30 min treadmill run. Ten trained females performed a graded exercise test on a treadmill to determine maximal aerobic power and RPE (Target RPE), oxygen uptake (VO2), heart rate (HR), and running velocity (RV) at the 2.5 mmol·L−1 blood lactate concentration ([La−]). Subjects then used the Target RPE to regulate exercise intensity during a control condition (Cont), and two treatment runs with passive visual distractions. During the treatment sessions, the subjects ran on the treadmill while viewing a high action (High) or a low action (Low) video with no audio. Subjects were allowed to adjust the treadmill speed throughout the run in order to maintain the Target RPE. However, subjects were not allowed to view the speed setting. There were no significant differences in [La−] among the conditions for the CONT, LOW, HIGH, or GXT (p<0.05). No significant differences in VO2 or RV were found within or among the 30 min treatment runs the GXT. HR at 5 min of exercise during CONT (158.1±2.74), LOW (157.8±2.58), and HIGH (158.6±2.31) was significantly lower than the GXT (169.4±2.82). Based on the data collected, visual passive distraction did not alter these female's ability to regulate intensity using RPE during a 30 min treadmill run.
Published Version
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