Research article - (2020)19, 204 - 212
Monitoring External Training Loads and Neuromuscular Performance for Division I Basketball Players over the Preseason
Aaron D. Heishman1,2,, Bryce D. Daub2, Ryan M. Miller1, Eduardo D. S. Freitas1, Michael G. Bemben1
1Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma, USA
2Department of Athletics, Basketball Strength and Performance, University of Oklahoma, Norman, Oklahoma, USA

Aaron D. Heishman
✉ Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma, USA
Email: aaronheishman@ou.edu
Received: 02-10-2019 -- Accepted: 16-12-2019
Published (online): 24-02-2020
ABSTRACT

Limited research has paralleled concomitant changes in external training load (eTL) and countermovement jump (CMJ) performance. Therefore, this investigation characterized eTL and CMJ performance changes across preseason training in Division 1 male collegiate basketball athletes, while examining the influence of position (Guard vs. Forward/Center) and scholarship status (Scholarship = S vs. Walk-on = WO). During 22 practices, eTL was monitored in 14 male athletes, with weekly CMJs performed to quantify neuromuscular performance (Jump Height [JH], Flight Time:Contraction Time [FT:CT], Reactive Strength Index Modified [RSIMod ]). PlayerLoad per minute was significantly higher during W1 and W2 (5.4 ± 1.3au and 5.3 ± 1.2au, respectively; p < 0.05) compared to subsequent weeks, but no additional differences in eTL parameters across time were observed. Scholarship athletes displayed greater PlayerLoad (S = 777.1 ± 35.6, WO = 530.1 ± 56.20; Inertial Movement Analysis (IMA) IMA_High (S = 70.9 ± 15.2, WO = 41.3 ± 15.2); IMA_Medium (S = 159.9 ± 30.7, WO = 92.7 ± 30.6); and IMA_Low (S = 700.6 ± 105.1, WO = 405 ± 105.0;) (p < 0.05), with no observed differences in eTL by position. Moderate decreases in FT:CT and RSIMod paralleled increased eTL. Significant increases in practice intensity (W1 and W2) did not impact CMJ performance, suggesting athletes could cope with the prescribed training loads. However, moderate perturbations in FT:CT and RSIMod paralleled the weeks with intensified training. Cumulatively, scholarship status appears to influence eTL while player position does not.
Key words: Athlete monitoring, athlete performance, countermovement jump, fatigue, team sport

Key Points
  • Characterization of external training loads in NCAA Division I basketball players.
  • No significant differences were observed between the guard and forward/center positions.
  • PlayerLoad (PLID-UP) contributed less to total PlayerLoad accumulation during basketball play, while PLID-FWD and PLID-SIDE each demonstrated a 2-7% greater contribution to total PL compared to the previously reported running data on linear running.
  • Significant differences in external training loads between key players and role players during the preseason training period.
  • There appeared to be a moderate effect of decrease in FT:CT and RSI with increase in PlayerLoad/min, however jump height remains unchanged.








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Monitoring External Training Loads and Neuromuscular Performance for Division I Basketball Players over the Preseason
Aaron D. Heishman, Bryce D. Daub, Ryan M. Miller, Eduardo D. S. Freitas, Michael G. Bemben
2020(19), 204 - 212.
DOI: https://doi.org/