External and Internal Load Quantification in a semi-professional male football team
Fecha
2021Disciplina/s
Actividad Física y DeporteMateria/s
MonitorizaciónAcelerometría
SHRZ
VFC
Monitoring
HRV
Perfil de entrenamiento
Microciclo
Accelerometry
Microcycle
Training characterization
Resumen
In order to quantify the external and internal load in a Spanish First Division U-19 football team, a prospective observational study was carried out for a microcycle during the 2018/2019 season. For a 5 training sessions and 1 match, session rate of perceived exertion (sRPE) was recorded and, with accelerometry (Polar Team Pro), were analysed studying distance, sprint, running speed, decelerations and accelerations by external load, and summated heart rate zone (SHRZ) and heart rate variability (HRV) by internal load. The independence of the variables was determined and possible relationships between variables and their causality were explored. External and internal load behave independently (F=282.05; p<.001; ES=.25). Significant relationships between external and internal measures were observed: SHRZ was related con to all external variables (Distance/min, R=.845, p=.034; Sprint; r=.928, p=.008; V4/min, r=.916, p=.01; HSR/min, r=.909, p=.012; Total DF/min, r=.872, p=.023; Total AF/m... Con el objetivo de analizar el comportamiento de la car-ga externa (CE) e interna (CI) en un equipo de fútbol de la Primera División Española Sub-19, se realizó un estudio prospectivo observacional durante un microciclo del perio-do competitivo durante la temporada 2018/2019. Durante 5 sesiones de entrenamiento y 1 partido se registró la per-cepción subjetiva de esfuerzo de sesión (sRPE) y, mediante acelerometría (Polar Team Pro), se analizaron las variables de CE distancia recorrida, número de sprint, velocidad de carrera, desaceleraciones y aceleraciones, y las variables de CI sumatorio de zonas de frecuencia cardíaca (SHRZ; summated heart rate zone) y variabilidad de la frecuencia cardíaca (VFC). Se determinó la independencia de las varia-bles y exploraron posibles relaciones entre las variables y su posible coocurrencia. CE y CI se comportaron de manera independiente (F=282.05; p<.001; ES=.25). Se observaron relaciones significat...