Figure 3. Concurrent validity of (A) maximum force, (B) maximum velocity, (C) force–velocity slope, and (D) maximum power parameters.

The force–velocity relationship parameters obtained from the 6-loads free (empty dots and short dashed line) and 4-loads free (filled dots and long dashed line) methods were compared against the standard 4-loads Smith method. The identity line (straight line) is depicted. p, p-value obtained from paired samples t-tests; r, Pearson’s correlation coefficient.