(43) Developing Normative Data within the Load-Velocity Relationship: A Cohort Study

Purpose: The load-velocity relationship is defined as the inverse relationship between resistance and velocity of movement. It is not well understood the extent to which these two variables are related and the exact curvature of this relationship. This study aims to evaluate the extent to which load influences velocity. Methods: 10 graduate students (ages 22 – 25-year-old, co-ed cohort, 15 years +/- 2 of reported weightlifting/athletic experience) completing a movement analysis assignment, signed an informed consent form and performed an assigned load, volume and movement to complete. 5 set of 5 reps at a reported load between 50 – 75% of their one rep max. Velocity was recorded and reported using camera-based velocity tracking technology. Results: As a result, the average velocity at each load was: 45% 1RM - .88 m/s MV, 50% 1RM - .64 m/s MV, 70% 1RM - .66 m/s MV, 80% 1RM - .61 m/s MV. R2 = 0.1489. Conclusions: Based on these results, the degree to which load and velocity was indeterminable likely due to inability to enforce effort in each subject. This limitation should be considered in future studies. Practical Applications: These methods will give further insight into assigning load based on desired peak velocity in coaches using velocity-based training systems. This study also gives insight into the necessity of managing effort and fatigue when determining peak velocity. Acknowledgements: No acknowledgements