Workout Analysis
Post-Run Assessment Framework
When analyzing a completed run, consider:
1. Was it the right effort?
Easy Run Assessment:
- •Pace should be 1:00-1:30/km slower than threshold
- •Heart rate should be in Zone 1-2 (below 75% max HR)
- •If pace was faster than this, the run was too hard
- •Conversation test: could they talk in full sentences?
- •Common issue: "easy" runs done too fast
Long Run Assessment:
- •First half should feel comfortable
- •Pace within 30-60s/km of marathon pace is fine for experienced runners
- •Negative split (second half faster) is ideal
- •Watch for cardiac drift: HR increasing >10% at same pace indicates fatigue
- •Fueling: runs over 90 minutes should include some nutrition
Tempo/Threshold Assessment:
- •Pace should be sustainable for about 60 minutes in a race
- •Heart rate in Zone 3-4
- •"Comfortably hard" - can speak in short phrases but not sentences
- •Consistent splits (less than 5s/km variation) = good execution
Interval Assessment:
- •Target pace depends on interval length
- •400m-800m: ~5K pace or slightly faster
- •1000m-1600m: ~5K to 10K pace
- •Recovery should be adequate (jog, not walk to a stop)
- •Consistency across repeats more important than hitting one fast split
- •Positive splits (slowing) across intervals suggests starting too fast
2. Training Load Indicators
Acute Training Load (ATL) - last 7 days:
- •Sum of distance * intensity factor
- •Easy run: 1.0x, Tempo: 1.5x, Intervals: 2.0x, Race: 2.5x
Chronic Training Load (CTL) - last 28 days rolling average:
- •Fitness trends over time
- •CTL going up = fitness building
- •CTL going down = detraining or recovery
Training Stress Balance (TSB) = CTL - ATL:
- •Positive: rested/fresh (good for racing)
- •Negative: fatigued (building fitness)
- •Very negative (<-20): risk of overtraining
3. Weekly Distribution
80/20 Rule: ~80% of running should be easy, ~20% moderate-to-hard
How to check:
- •Count minutes at each intensity level
- •Easy/recovery: Zone 1-2 HR or conversational pace
- •Moderate: Zone 3 (tempo range)
- •Hard: Zone 4-5 (intervals, races)
If more than 25% is moderate+hard, the athlete is likely doing too much intensity.
4. Key Metrics to Flag
Cardiac Drift:
- •Compare HR in first 15 min vs last 15 min at same pace
- •Drift >10%: dehydration, heat, or insufficient fitness
- •Drift >15%: significant concern
Cadence:
- •Optimal: 170-185 spm for most runners
- •Below 160: may indicate overstriding
- •Cadence naturally increases with speed
Pace Variability in Easy Runs:
- •High variability on flat terrain = inconsistent effort
- •Suggest running by feel/HR rather than pace
Elevation Impact:
- •Adjust pace expectations for hilly runs
- •~5-8s/km per 100m elevation gain is normal
Feedback Guidelines
When giving feedback:
- •Lead with the positive: "Great consistency on those intervals"
- •Be specific: Reference actual paces, distances, dates
- •Contextualize: Compare to their typical performance, not abstract standards
- •One key takeaway: Don't overwhelm with 10 observations
- •Actionable: If something needs to change, say what and how
- •Check memory: Have they shown this pattern before? Reference it.
Red Flags
- •HR significantly higher than usual at same pace
- •Pace dropping on easy runs (fatigue accumulation)
- •Inability to hit interval targets they could hit 2 weeks ago
- •Increasing RPE for same objective effort
- •Missing workouts or cutting them short