Athlete Load Monitoring: A Practical Guide for S&C Coaches
Learn how to monitor training load, manage the acute:chronic workload ratio, and keep your athletes performing while reducing injury risk.
Athlete Load Monitoring: A Practical Guide for S&C Coaches
Monitoring training load is one of the most powerful, and most misunderstood, tools available to a strength & conditioning coach. Done well, it tells you when an athlete is ready to push and when they need to recover. Done poorly, it becomes noise.
Why load monitoring matters
Every training stimulus creates a dose-response. Too little load and your athletes don't adapt; too much, too soon, and injury risk climbs. The goal of load monitoring is to keep athletes in the sweet spot where they adapt and improve without breaking down.
Internal vs external load
External load is the work performed, kilograms lifted, metres sprinted, jump counts. Internal load is the response, heart rate, RPE, wellness scores. The most effective programs track both, because two athletes can have very different internal responses to the same external demand.
The acute:chronic workload ratio
The acute:chronic workload ratio (ACWR) compares your rolling 7-day load (acute) to your 28-day average (chronic). A ratio between 0.8 and 1.3 is generally considered the safe zone. Spikes above 1.5 are associated with a sharp increase in injury risk.
What to track
- Session RPE × duration for a simple, validated internal load measure
- Total tonnage or volume for resistance training
- GPS metrics (high-speed running distance, sprint count) for field sports
- Daily wellness questionnaires to contextualise the numbers
Turning data into decisions
Numbers on their own don't prevent injuries. Review trends weekly, share simple traffic-light reports with athletes, and adjust programming when the data flags risk. The best systems are the ones a coach will actually use consistently.
Prospect Training Systems brings load monitoring, wellness data and programming into one platform, so you can see the full picture without juggling spreadsheets.
Frequently Asked Questions
What is athlete load monitoring?
Athlete load monitoring is the process of tracking the physical demands placed on an athlete across training and competition, using metrics like session RPE, training volume and the acute:chronic workload ratio to manage fatigue and reduce injury risk.
What is the acute:chronic workload ratio (ACWR)?
The ACWR compares an athlete’s recent training load (usually the past 7 days) against their chronic baseline (typically 28 days). A ratio between roughly 0.8 and 1.3 is generally considered the safest range for performance and injury prevention.
How do I collect RPE from athletes?
Collect session RPE by asking athletes to rate the difficulty of a session on a 1–10 scale around 30 minutes after it ends, then multiply that value by the session duration in minutes to calculate training load in arbitrary units.