Resumen de Effect of Different Types of Loads on the Force-Velocity Relationship Obtained During the Bench Press Throw Exercise
Marko Cosic, Olivera M. Knezevic, Aleksandar Nedeljkovic, Sasa Djuric, Milena Z. Zivkovic, Amador García Ramos
This study aimed (a) to evaluate the degree of linearity of the force-velocity (F-V) relationship across different types of loads, (b) to compare the magnitude of the F-V relationship parameters (maximum values of force [F0], velocity [V0], and power [Pmax]) between the different types of loads, and (c) to explore the concurrent validity of F0 with traditional measures of maximal strength. The F-V relationships of 15 physically active men (age: 20.9 +/- 2.0 years, bench press 1 repetition maximum relative to body mass: 1.20 +/- 0.10 kg[middle dot]kg-1) were determined during the bench press throw exercise using predominantly gravitational (W), inertial (I), and combined (W + I) loads. The bench press maximal isometric force (Fiso) and the 1RM were also assessed. The individual F-V relationships were highly linear regardless of the type of load considered (median r [range] = 0.98 [0.94, 1.00]). The W + I load provided the largest value of F0 (972 +/- 45 N; 6.0 and 14.6% higher than W and I, respectively), the I load the largest value of V0 (2.99 +/- 0.34 m[middle dot]s-1; 40.4 and 20.1% higher than W and W + I, respectively), and the W load the lowest value of Pmax (501 +/- 46 W; -22.7 and -17.1% lower than I and W + I, respectively). The F0 obtained from the W load presented the highest association with Fiso and 1RM values (r > 0.90). The W + I load and the I load should be recommended to work closer to the F0 and V0 capacities, respectively. However, the W load should be recommended to assess maximal strength capacity through the value of F0.
