Summary of "L'ERREUR qui te coûte 6 mois de blessure (et que 90% des coureurs font encore)"

How to avoid the injury that can cost you months of running

Between 24–65% of runners get injured each year (most are overuse/inflammatory injuries).
Most common problems:
- Patellofemoral pain
- Tibial periostitis (shin splints)
- Achilles tendinopathy
- Plantar fasciitis
- Stress fractures
Primary cause: mismanaged training load and intensity. Secondary contributors: poor sleep, stress, low energy/carbohydrate intake, dehydration, poor mobility/strength, inappropriate shoes, or sudden terrain changes.

Determine your training paces first
- Do a half-Cooper test or a lab stress test to get VMA (maximal aerobic speed) and max HR, then set pace/HR zones on your watch.
Use the acute:chronic workload ratio (ACWR)
- ACWR = acute load (last 7 days) / chronic load (last 28 days).
- Aim for ~0.8–1.3; risk spikes above ~1.5.
Increase weekly volume slowly
- About 5–10% per week; avoid sudden doubling of volume — abrupt jumps greatly increase injury risk.
Intensity distribution
- Use an 80/20 principle: ~80% easy (base endurance) and ~20% higher intensity.
- If you run only 2–3×/week, shift to ~65–70% easy and 30–35% intensity.
Vary sessions to avoid monotony
- Mix easy runs, VO2/intervals, threshold/SV1, and a longer run.
- Example 3×/week:
  - Wed: 45 min easy (base)
  - Fri: VO2 session (e.g., 8×2′ with 2′ jog)
  - Sun: 1h15 long run with 2×15′ at SV1 (threshold)
Monitor internal load (RPE)
- If RPE rises while HR/pace are similar, you’re accumulating fatigue — adapt the plan (e.g., easy instead of intervals).
Be flexible
- Don’t follow the plan blindly — adapt based on sleep, stress, illness, and how you feel.

Minimum effective dose: two 30-minute strength/mobility sessions per week.
“Core five” basic exercises (do these twice weekly):
- Squat
- Lunges
- Plank
- Glute bridge / hip thrust
- Calf raises
Advanced / running-specific drills (add progressively):
- Single-leg squat
- Single-leg calf raises
- Jumping lunges (plyometrics)
- Lateral / dynamic core work
- Dead bugs
- Foot-strengthening exercises
- Short-contact plyometrics for power and reduced ground contact time
Focus areas by injury risk:
- Patellofemoral pain: strengthen glutes and correct dynamic valgus
- Shin pain (periostitis): strengthen calves and manage hard-surface exposure
- Achilles: avoid excessive hills or sprint volume; build calf strength slowly
- Stress fractures: check energy balance and micronutrients; don’t ignore body signals

Schedule strength sessions so they don’t impair the week’s priority session:
- If the long run is the priority, avoid heavy strength right before or immediately after it.
- If the interval session is the priority, avoid heavy strength immediately beforehand.
- Place strength before a moderate session when the goal is building muscular resistance.
Example rule: align strength sessions with the week’s training priorities rather than placing them arbitrarily.

Sleep, stress management, and nutrition are integral:
- Prioritize quality sleep and manage life/work stress — adapt training if stressed.
- Fuel workouts: place carbohydrates around sessions (before/during/after) to protect tissues, especially if in a calorie deficit.
- Hydration: carry a bottle or set reminders to drink regularly.
If fatigued, replace a planned hard session with an easy run — better to miss or downgrade a session than push into a cycle of poor recovery and injury.
For many common inflammatory injuries, complete cessation of running can decondition tissues; guided reduction or modification is often preferable to full stop (seek professional advice).

Shoe choice matters, but changing shoes is not a guaranteed fix. Get a gait analysis to choose the right shoe and confirm if stride is a factor.
Use your watch’s intensity zones (color bands) to ensure session variety and appropriate pacing.
Track and adapt weekly/monthly loads rather than following a static plan from day 0 to race day.

Post-injury recovery checklist / protocol (available from the presenter; request via Instagram by messaging “injury”).
Coaching/support with gait analysis and tailored strength programs offered by Second Souffle.

Waris (video presenter, founder of Second Souffle)
Second Souffle (coaching/support organization; physiotherapists and team members referenced)
Example runner: Abdel Jalil
Team member mentioned: Pierre

If desired, a one-week sample plan (detailed paces and exact strength sets) or a step-by-step 30-minute strength session can be provided.