Internal and External Load Control in Team Sports through a Multivariable Model.

Data related to 141 sessions of 10 semi-professional basketball players were analyzed during the competitive period of the 2018- 2019 season using a multivariable model to determine possible associations between internal and external load variables and fatigue. Age, height, weight, sessional rate of...

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Bibliographic Details
Published in:Journal of Sports Science & Medicine Vol. 20; no. 4; pp. 751 - 759
Main Authors: Piedra, Aitor, Caparrós, Toni, Vicens-Bordas, Jordi, Peña, Javier
Format: equations & formulas research tables/charts Journal Article
Published: Hakan Gur, Journal of Sports Science & Medicine Dec2021
Online Access:View this record in EBSCOhost
Description
Summary:Data related to 141 sessions of 10 semi-professional basketball players were analyzed during the competitive period of the 2018- 2019 season using a multivariable model to determine possible associations between internal and external load variables and fatigue. Age, height, weight, sessional rate of perceived exertion (sRPE), summated-heart-rate-zones, heart rate variability, total accelerations and decelerations were the covariates, and post-session countermovement jump loss (10% or higher) the response variable. Based on the results observed, a rise in sRPE and accelerations and decelerations could be associated with increased lower-body neuromuscular fatigue. Observing neuromuscular fatigue was 1,008 times higher with each additional sRPE arbitrary unit (AU). Each additional high-intensity effort also increased the probability of significant levels of neuromuscular fatigue by 1,005 times. Fatigue arising from demanding sporting activities is acknowledged as a relevant inciting event leading to injuries. Thus, the methodology used in this study can be used then to monitor neuromuscular fatigue onset, also enhancing proper individual adaptations to training.