title: A simple method for assessment of muscle force, velocity, and power producing capacities from functional movement tasks.
abstract: A range of force (F) and velocity (V) data obtained from functional movement tasks (e.g., running, jumping, throwing, lifting, cycling) performed under variety of external loads have typically revealed strong and approximately linear F-V relationships. The regression model parameters reveal the maximum F (F-intercept), V (V-intercept), and power (P) producing capacities of the tested muscles. The aim of the present study was to evaluate the level of agreement between the routinely used "multiple-load model" and a simple "two-load model" based on direct assessment of the F-V relationship from only 2 external loads applied. Twelve participants were tested on the maximum performance vertical jumps, cycling, bench press throws, and bench pull performed against a variety of different loads. All 4 tested tasks revealed both exceptionally strong relationships between the parameters of the 2 models (median R = 0.98) and a lack of meaningful differences between their magnitudes (fixed bias below 3.4%). Therefore, addition of another load to the standard tests of various functional tasks typically conducted under a single set of mechanical conditions could allow for the assessment of the muscle mechanical properties such as the muscle F, V, and P producing capacities.
authors.affiliation: a Faculty of Sport and Physical Education, The Research Centre , University of Belgrade , Belgrade , Serbia.
authors.forename: Milena Z
authors.initials: MZ
authors.lastname: Zivkovic
authors.affiliation: a Faculty of Sport and Physical Education, The Research Centre , University of Belgrade , Belgrade , Serbia.
authors.forename: Sasa
authors.initials: S
authors.lastname: Djuric
authors.affiliation: a Faculty of Sport and Physical Education, The Research Centre , University of Belgrade , Belgrade , Serbia.|b Department of Kinesiology , College of Sports and Health , Belgrade , Serbia.
authors.forename: Ivan
authors.initials: I
authors.lastname: Cuk
authors.affiliation: a Faculty of Sport and Physical Education, The Research Centre , University of Belgrade , Belgrade , Serbia.
authors.forename: Dejan
authors.initials: D
authors.lastname: Suzovic
authors.affiliation: c Department of Kinesiology and Applied Physiology , University of Delaware , Newark , DE , USA.|d Biomechanics and Movement Science Graduate Program , University of Delaware , Newark , DE , USA.
authors.forename: Slobodan
authors.initials: S
authors.lastname: Jaric
mesh_terms: D001696:Biomechanical Phenomena; D005080:Exercise Test / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D015233:Models, Statistical; D009068:Movement / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D013647:Task Performance and Analysis
keywords: Regression; load; mechanics; output; parameter