Affiliation:
1. Canadian Sport Institute Pacific, Victoria, British Columbia, Canada;
2. Exercise Science, Physical and Health Education, University of Victoria, Victoria, British Columbia, Canada;
3. Physical Performance Department, Canada Soccer, Ottawa, Ontario, Canada; and
4. School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada
Abstract
Abstract
Cormier, P, Tsai, M-C, Meylan, C, Agar-Newman, D, Epp-Stobbe, A, Kalthoff, Z, and Klimstra, M. Concurrent validity and reliability of different technologies for sprint-derived horizontal force-velocity-power profiling. J Strength Cond Res 37(6): 1298–1305, 2023—This study evaluated the validity and reliability of common systems to assess sprint-derived horizontal force-velocity-power (FVP
H
) profile metrics. Two double constellation athlete monitoring systems (STATSports Apex, Catapult Vector S7) and one timing gate system were compared with a radar gun for the computation of FVP
H
metrics. Intersystem validity was assessed using intraclass correlation coefficients (ICC), Pearson's correlation coefficients (R
2
), and Bland-Altman plots with absolute and percent agreement. Intrasystem reliability was assessed with agreement bias and ICC. STATSports demonstrated moderate agreement for F
0, P
max, τ, and D
rf (8.62, 6.46, -9.81, and 9.96%, respectively) and good agreement for V
0 and MSS (−2.18 and −1.62%). Catapult displayed good agreement across all metrics (F
0, V
0, P
max, MSS, τ, and D
rf: −0.96, −0.89, −1.85, −0.84, 0.38, and −0.27%, respectively). Timing gates demonstrated good agreement with V
0 and MSS (−2.62 and −1.71%) and poor agreement with F
0, P
max, τ, and D
rf (19.17, 16.64, −20.49, and 20.18%, respectively). Intrasystem reliability demonstrated good agreement (<2% bias) with very large to near-perfect ICC (0.84–0.99) for Catapult and STATSports systems. Overall, GPS/GNSS 10 Hz technology is reliable across devices and can provide moderate-to-good accuracy of FVP
H
metrics in single maximal effort sprints. However, Catapult provided better agreement for more FVP
H
metrics than STATSports, which may be related to differences in proprietary algorithms. Also, modeling timing gate data using current FVP
H
profiling techniques results in poor bias that requires greater investigation. GPS/GNSS data can be used for FVP
H
profiling, which could inform performance and rehabilitation processes.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine,General Medicine