The inter-device reliability of global navigation satellite systems during team sport movement across multiple days.
J Sci Med Sport
; 25(4): 340-344, 2022 Apr.
Article
em En
| MEDLINE
| ID: mdl-34893434
ABSTRACT
OBJECTIVES:
(1) Determine the inter-device and inter-manufacturer reliability; and (2) investigate the variation in reliability over time for common global navigation satellite systems.DESIGN:
Repeated measures.METHODS:
A total of twenty 10-Hz devices manufactured by StatSports (nâ¯=â¯10, Apex Pro; StatSports, Newry, Ireland) and Catapult Sports (nâ¯=â¯10, Vector S7; Catapult Sports, Melbourne, Australia) were towed on a sprint sled during 8â¯×â¯40-minute team sport movement protocol over a 4-week period. The coefficient of variations for distance, velocity and acceleration/deceleration metrics were calculated to show dispersion of the data relative to the mean or median for each manufacturer and interpreted as good, ≤5%; moderate, <10%; and poor, coefficient of variation ≥10%. The coefficient of variation range described the variation in reliability and was interpreted as small, ≤5%; moderate, <10% and large, ≥10%. Inter-manufacturer agreement was represented as a Cohen d (±95% confidence interval) standardised effect size.RESULTS:
Inter-device reliability for distance, peak velocity and average acceleration was good (coefficient of variationâ¯=â¯0.1 to 3.9%) for both manufacturers, with small variation across sessions. For most threshold-based acceleration and deceleration counts, StatSports devices showed good to moderate reliability, with moderate variation across sessions; Catapult showed good to poor reliability, with large variation across sessions. Inter-manufacturer agreement demonstrated moderate to very large effect sizes reported for most metrics.CONCLUSIONS:
Reliability was suitable and consistent for measures of distance, velocity, and average acceleration. StatSports devices generally possessed suitable reliability and consistency for threshold-based accelerations and decelerations, though Catapult devices did not. Most metrics should not be compared between manufacturers.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Corrida
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Desempenho Atlético
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article