Understanding Perceived Effort (Inspired by SWAP)

Pace lies. Effort tells the truth.

One of the questions I get most from athletes is, "What exactly does a 'Z2/Easy' run feel like?" or "How fast should my 10k effort intervals be?"

If you run exactly 5:30/km on a flat road in 15°C weather, it feels entirely different than running 5:30/km up a hill, into a headwind, in 30°C heat, after a terrible night of sleep. This is why we train by Perceived Effort, not just the numbers on your Garmin.

Credit where it's due: My coaching philosophy is heavily inspired by David and Megan Roche of Some Work, All Play (SWAP). They recently published a brilliant "Dictionary of Effort" on their Patreon. While I highly recommend joining their community for the deep dive, I’ve shared the core concepts here so you know exactly what these terms mean when you look at your training plan.

Very Easy / Recovery

This is a purposeful recovery day. The goal is to stack up some volume with extremely low stress.

• The Feeling: A shuffle. Intentionally slow. You should feel like you could do this all day.
• The Talk Test: You could sing a song or hold a complex conversation without pausing for breath.
• The Goal: To promote blood flow and feel better at the end of the run than you did at the start. Don't force a pace; just let the body move.

Easy / Moderate (Zone 2)

This is the bread and butter of your training. You will spend 80% of your time here. The tricky part is that it is not a specific pace, it gives you leeway to use good days where you might push slightly harder on uphills, and pull back on tired days.

• The Feeling: A solid aerobic stimulus, but without turning it into a hard effort. You are moving efficiently.
• The Talk Test: You can speak in full paragraphs, though you might need a slightly deeper breath between them.
• The Goal: To build your aerobic engine without digging a hole for tomorrow's workout. When in doubt, slow down.

Steady / Moderate

This usually comes after a warm-up or during specific long runs. You are no longer shuffling; you are actively running, but it is not a race.

Tempo / Threshold (1-Hour Effort)

This is the crossover point where we start working on the top end of your aerobic system. It feels relatively controlled at first, with fatigue accumulating across the interval.

• The Feeling: Comfortably uncomfortable. Towards the final intervals of a workout, it will likely feel challenging within 1 minute of starting.
• The Talk Test: Short sentences only. "Yes, I'm good." "Pace is fine." You do not want to chat.
• The Goal: Pushing your lactate threshold up. It’s hard work, but you shouldn't be gasping or bending over hands-on-knees at the end.

Hard (VO2 Max / 3k-5k Effort)

This is traditional speedwork. When you see "3k/5k effort" or intervals lasting 1 to 5 minutes on your plan, you are working near your maximum aerobic capacity.

• The Feeling: Intense. It might feel manageable for the first 30 seconds, but the fatigue and breathing rate climb rapidly. By the final rep, you are heavily relying on mental grit to finish.
• The Talk Test: Single words only. Grunts are acceptable.
• The Goal: Raising your maximum aerobic capacity (VO2 Max) and getting comfortable being very uncomfortable.

Applying this to your plan

The next time you open your training plan and see a target, look at the effort cue first. If it's a humid day and your heart rate spikes, drop the pace and stick to the feeling.

At Run With Run Club, we build athletes who know how to listen to their bodies. When you nail the effort, the paces naturally take care of themselves.