Table 1

Measures of external and internal load

External loadInternal load
  • Frequency (/day/week/year)

  • Time (minutes, seconds)

  • Accelerometer loads

  • Distance covered

  • High speed distance covered

  • Jumps completed

  • Power output, speed, acceleration

  • Time-motion analysis

  • Neuromuscular function

  • Weight lifted

  • Throws/pitches/bowls performed

  • Session-rating of perceived exertion (RPE*minutes)

  • HR:RPE ratio

  • TRIMP (HR-based training impulse)

  • Blood lactate

  • Lactate:RPE ratio

  • Recovery/stress/wellbeing

    questionnaires (eg, Recovery Stress Questionnaire for Athletes—REST-Q; Daily Analysis of Life Demands for Athletes—DALDA, Profile of Mood States—POMS)

  • Various examples for quantifying both external and internal workload.29 ,32 ,79