Concurrent validity and reliability of self-selected movement velocity for resistance training monitoring in close grip pull-down and knee extension

Movement velocity (MV) has been featured as a more accurate and stable variable for resistance exercise (RE) monitoring. However, its application in RE prescription based on self-selected MV (MVss) is not possible because the benefits were evaluated only in the maximal intended MV practice context. Thus, the objective of this study was to verify the validity and reliability of MVss as a performance measure in RE. A group of 41 people (28.75±10.06 years, 77.25±9.04kg, 1.76±0.06m for men and 30.25±15.97 years, 62.96±14.31kg, 1.65±0.06 for women) volunteered to participate in this study, and their performances were evaluated in knee extension and close grip pull-down, using a rotary position transducer. In fact, the results presented evidence of concurrent validity of MVss, although its predictive validity must be questioned (R2=0.5; P