Reliability and validity of the OMNI-vibration exercise scale of perceived exertion

This study examined reliability and concurrent validity of the newly developed omni-vibration exercise scale (omnivibro) to measure ratings of perceived exertion (rpe) during vibration exercise in twenty recreationally active students (12 males and 8 females). the criterion variables were muscle activity of the vastus medialis (vm),vastus lateralis (vl),biceps femoris (bf),and medial gastrocnemius (mg) muscles,as well as accelerations (12.5,20.2,30.9,36.3,60.1,and 88.4 m·s -2). rpe was registered during the final of each 30 s condition. each participant attended two laboratory testing sessions. positive linear regression coefficients (p < 0.001) were found between rpe (omni-vibro) and acceleration (r = 0.976) and muscle activity of lower-body muscles (r = 0.942). between session (test-retest),reliability of rpe (omni-vibro) was good (icc: 0.790. 95% ci: 0.699-0.854). conclusions: findings provided concurrent validation of the omni-vibro to measure rpe for the active muscle and overall body in recreationally active students performing lower-body vibration exercise. © journal of sports science and medicine (2012).