RT Journal Article
T1 Can the Supido Radar Be Used for Measuring Ball Speed During Soccer Kicking? A Reliability and Concurrent Validity Study of a New Low-Cost Device
A1 Díez Fernández, David M.
A1 Rodríguez Rosell, David
A1 Gazzo, Federicco
A1 Giráldez, Julián
A1 Villaseca-Vicuña, Rodrigo
A1 González-Jurado, J. A.
K1 Radar
K1 Agreement
K1 Concordance
K1 Physical performance
K1 Reproducibility
K1 Kicking ball speed
AB The aim was to analyze the reliability and validity of a low-cost instrument, based on a radar system, to quantify the kicking ball speed in soccer. A group of 153 male soccer players (under-13, n = 53; under-15, n = 54; under-18, n = 46) participated in this study. Each player performed three kicks on the goal in a standardized condition while the ball speed was measured with three different devices: one Radar Stalker ATS II® (reference criterion) and two Supido Radar® (Supido-front of the goal and Supido-back of the goal). The standard error of measurement (SEM) expressed as a coefficient of variation (CV) and the intraclass correlation coefficient (ICC) were employed for assessing the reliability of each instrument. Stalker and Supido-back showed very high absolute (CV = 4.0–5.4%) and relative (ICC = 0.945–0.958) reliability, whereas Supido-front resulted in moderate to low reliability scores (CV = 7.4–15%, ICC = 0.134–0.693). In addition, Lin’s concordance correlation coefficient (CCC) values revealed an ‘almost perfect’ agreement between Stalker and Supido-back for the average (r = 0.99) and maximal (r = 0.98) ball speed, regardless of the ball speed range analyzed. However, Supido-front resulted in a poor degree of concordance (CCC = 0.688) and a high magnitude of error (17.0–37.5 km·h−1) with the reference Stalker radar gun. The Supido Radar® placed behind the goal could be considered a reliable and valid device for measuring ball speed in soccer.
PB MDPI
YR 2022
FD 2022
LK https://hdl.handle.net/10433/25061
UL https://hdl.handle.net/10433/25061
LA en
NO Sensors 2022, 22(18), 7046
NO Departamento: Deporte e Informática
DS RIO
RD May 12, 2026