Abstract des Autors

Training quantification is required to evaluate an endurance athlete’s responses to training loads, ensuring adequate stress/recovery balance, and determine the relationship between training and performance. Quantifying both external and internal workload is important, because whilst the external workload provides necessary context, it does not measure the biological stress imposed by the exercise sessions. Generally used quantification methods include retrospective questionnaires, diaries, direct observation and physiological monitoring, often based on the measurement of oxygen uptake, heart rate, and blood lactate concentration. Other methods in use in endurance sports include speed measurement and the measurement of power output, made possible by recent technological advances such as power meters in cycling and triathlon. Among subjective methods of quantification, rating of perceived exertion stands out because of its wide use. When used appropriately, various quantification methods allow researchers and practitioners to evaluate stress/recovery balance and adjust individual training programmes. Ultimately, it should benefit training adaptation and improve competitive performance. This chapter summarises the most relevant external and internal workload quantification methods in endurance sports, and provides practical examples of their implementation to adjust the training programmes of elite athletes in accordance to their individualized stress/recovery balance.