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Article

Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players

1
Department of Athletics, Basketball Strength and Performance, University of Oklahoma, Norman, OK 73019, USA
2
Department of Health and Exercise Science, University of Oklahoma, Norman, OK 73019, USA
*
Author to whom correspondence should be addressed.
Sports 2020, 8(3), 33; https://doi.org/10.3390/sports8030033
Received: 3 January 2020 / Revised: 7 March 2020 / Accepted: 9 March 2020 / Published: 11 March 2020
(This article belongs to the Special Issue Physical Performance in Team Sports)
Monitoring external training load (eTL) has become popular for team sport for managing fatigue, optimizing performance, and guiding return-to-play protocols. During indoor sports, eTL can be measured via inertial measurement units (IMU) or indoor positioning systems (IPS). Though each device provides unique information, the relationships between devices has not been examined. Therefore, the purpose of this study was to assess the association of eTL between an IMU and IPS used to monitor eTL in team sport. Retrospective analyses were performed on 13 elite male National Collegiate Athletic Association (NCAA) Division I basketball players (age: 20.2 ± 1.2 years, height: 201.1 ± 7.6 cm, mass: 96.8 ± 8.8 kg) from three practices during the off-season training phase. A one-way analysis of variance was used to test differences in eTL across practices. Pearson’s correlation examined the association between the Distance traveled during practice captured by IPS compared to PlayerLoad (PL), PlayerLoad per Minute (PL/Min), 2-Dimensional PlayerLoad (PL2D), 1-Dimensional PlayerLoad Forward (PL1D-FWD), Side (PL1D-SIDE), and Up (PL1D-UP) captured from the IMU. Regression analyses were performed to predict PL from Distance traveled. The eTL characteristics during Practice 1: PL = 420.4 ± 102.9, PL/min = 5.8 ± 1.4, Distance = 1645.9 ± 377.0 m; Practice 2: PL = 472.8 ± 109.5, PL/min = 5.1 ± 1.2, Distance = 1940.0 ± 436.3 m; Practice 3: PL = 295.1 ± 57.8, PL/min = 5.3 ± 1.0, Distance = 1198.2 ± 219.2 m. Significant (p ≤ 0.05) differences were observed in PL, PL2D, PL1D-FWD, PL1D-SIDE, PL1D-UP, and Distance across practices. Significant correlations (p ≤ 0.001) existed between Distance and PL parameters (Practice 1: r = 0.799–0.891; Practice 2: r = 0.819–0.972; and Practice 3: 0.761–0.891). Predictive models using Distance traveled accounted for 73.5–89.7% of the variance in PL. Significant relationships and predictive capacities exists between systems. Nonetheless, each system also appears to capture unique information that may still be useful to performance practitioners regarding the understanding of eTL. View Full-Text
Keywords: athlete monitoring; inertial measurement unit; ultra-wide band; accelerometer; PlayerLoad; ShotTracker; team sport monitoring; off-season training athlete monitoring; inertial measurement unit; ultra-wide band; accelerometer; PlayerLoad; ShotTracker; team sport monitoring; off-season training
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MDPI and ACS Style

Heishman, A.; Peak, K.; Miller, R.; Brown, B.; Daub, B.; Freitas, E.; Bemben, M. Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players. Sports 2020, 8, 33. https://doi.org/10.3390/sports8030033

AMA Style

Heishman A, Peak K, Miller R, Brown B, Daub B, Freitas E, Bemben M. Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players. Sports. 2020; 8(3):33. https://doi.org/10.3390/sports8030033

Chicago/Turabian Style

Heishman, Aaron, Keldon Peak, Ryan Miller, Brady Brown, Bryce Daub, Eduardo Freitas, and Michael Bemben. 2020. "Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players" Sports 8, no. 3: 33. https://doi.org/10.3390/sports8030033

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