The Threshold Hammer Session

Workout - The Threshold Hammer Session

• 10min @ 6'00''/km
• 5 lots of:
  • 800m @ 4'30''/km
  • 200m @ 4'00''/km
• 3min @ 5'30''/km
• 2 lots of:
  • 800m @ 4'00''/km
  • 2min rest
• 800m @ 3'45''/km
• 2min rest
• 800m @ 4'00''/km
• 2min rest

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Here’s what you need to know from Advanced Running Workouts (Experienced Runners Only) by StrengthRunning. The video is solid—we’ll walk you through the essentials so you can try a session this week. Watch the full video for the complete breakdown.

Key Points

• These advanced sessions are designed for runners already doing ~30 mi (≈50 km) weekly, emphasizing workout quality rather than sheer volume.
• Three main pillars make up the approach: (1) Lactate‑Clearance Threshold runs that fold short 5K‑pace surges into a tempo effort, (2) Hammer Repetitions where you push a single interval to ~95 % effort despite pre-existing fatigue, and (3) Long‑Run Lengthening (15–20 mi / 24–32 km) to build aerobic power and improve glycogen handling.
• Apply these tips in practice: keep surges to 30‑45 seconds, aim for roughly 5 seconds faster than your threshold pace, and allow lactate to clear while sustaining the same intensity zone.

Workout Example

1. Lactate‑Clearance Threshold Run – Sample structure: 5 mi (≈8 km) total distance. Maintain your regular tempo/threshold pace throughout. Every mile, finish the last 30‑45 seconds at your 5K race pace (approximately 10‑15 sec faster than threshold), then drop back to threshold pace. For metric units: run 1,400 m at threshold, followed by 200 m at 5K pace, and repeat.
2. Hammer Repetition – Start with 5 × 800 m at 5K pace, then turn the 4th interval (or the one before last) into a “hammer.” Push that 800 m to ~95 % of your maximum 5K effort—for instance, if your 5K pace is 7 min/mi, target ~3:30 for 800 m (rather than 3:45). This teaches you to sustain hard running when your legs are already tired.
3. Advanced Long Run – Plan a weekend run of 15–20 mi (≈24–32 km). Keep the effort easy (≈65‑75 % of max HR) while building continuous distance to strengthen type‑I fiber endurance and glycogen utilization. This becomes the foundation for adding race-specific speed work later.

Closing Note: Take one of these workouts for a spin this week, and feel free to modify paces based on your fitness level—the Pacing app can help dial things in. You’ll push your limits, develop mental resilience, and create a path to faster times. Stay diligent, train smart, and watch your performance improve.

References

• Advanced Running Workouts (Experienced Runners Only) | Strength Running - YouTube (YouTube Video)