Acute:Chronic Workload Ratio

The Point

• ACWR is shown as one number, like 0.8, 1.0, or 1.2.
• It compares this week’s training work to what you have done over the past month.
• A number around 1.0 usually means this week is close to your recent normal.
• We do not need this number to go up every week. Lower weeks can help you recover.

The Reason

ACWR stands for Acute:Chronic Workload Ratio.

That sounds more complex than it is.

Acute means short-term. For us, that usually means this week (7 days).

Chronic means longer-term. For us, that usually means the past month (28 days).

Workload means how much training work you did. In lifting, workload is often counted as:

sets × reps × weight

For example, if you squat 100 lb for 3 sets of 10 reps, that is:

3 × 10 × 100 = 3,000 lb of workload

ACWR compares this week’s workload to your recent average.

For example, if your average week over the past month was 10,000 lb of workload, and this week was also 10,000 lb, your ACWR would be 1.0.

That means this week was about the same as your recent normal.

If this week was 12,000 lb, your ACWR would be 1.2.

That means this week was higher than your recent normal.

If this week was 8,000 lb, your ACWR would be 0.8.

That means this week was lower than your recent normal.

The number is not good or bad by itself. It just gives us context.

A higher number may mean you are pushing more than usual. That can be useful, but it can also be harder to recover from.

A lower number may mean you are doing less than usual. That can happen during a focus on tempo or power, a deload, a busy week, a recovery week, or a week where life gets in the way.

The goal is not to make ACWR climb all the time. The goal is to slowly raise what your body can handle over the long term.

What To Do

Use ACWR as a guide, not a grade.

If your ACWR is around 1.0, your training is close to what your body has recently been used to.

If your ACWR is above 1.0, you are doing more than your recent normal. Pay attention to recovery, soreness, sleep, energy, and how your reps feel.

If your ACWR is below 1.0, you are doing less than your recent normal. That is not always a problem. It may be part of the plan.

Do not chase a higher number every week.

A good plan has waves. Some weeks build. Some weeks hold. Some weeks pull back.

What we want over time is a higher baseline. That means your normal week becomes stronger, more stable, or more productive than it used to be.

Common Misreads

• “A higher number is always better.” No. More work only helps if you can recover from it.
• “A lower number means I am falling behind.” Not always. Lower weeks can help you recover.
• “A number around 1.0 means nothing is improving.” Not true. It may mean your training is steady and controlled.
• “ACWR tells the whole story.” No. It does not show sleep, stress, soreness, technique, or how hard the sets felt.
• “Every week should be harder than the last.” No. Long-term progress needs both harder weeks and easier weeks.
• “Workload is only about weight.” Not quite. In lifting, weight matters a lot, but sets and reps matter too. For conditioning, workload may come from time, distance, pace, or heart rate.

Exceptions

Your coach may adjust this if you are coming back from time off, dealing with pain, feeling very sore, starting a deload, changing your plan, adding conditioning, training less often, or trying to rebuild your routine.

Related Guides

• How Training Blocks Are Organized - how workload fits into the bigger training structure.
• Training Stimulates, Recovery Locks It In - why recent workload changes recovery demands.
• Total Stress and Recovery - why sleep, life stress, and other factors still matter when workload looks normal.