Open AccessInternal and External Load Control in Team Sports through a Multivariable Model
Author(s) -
Aitor Piedra,
Toni Caparrós,
Jordi Vicens-Bordas,
Javier Peña
Publication year - 2021
Publication title -
journal of sports science and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 65
ISSN - 1303-2968
DOI - 10.52082/jssm.2021.751
Subject(s) - rating of perceived exertion , perceived exertion , basketball , heart rate , physical medicine and rehabilitation , medicine , session (web analytics) , physical therapy , team sport , computer science , blood pressure , archaeology , world wide web , athletes , history
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.