Scullion's Muscle Primer

Workout - Scullion's Muscle Primer

• 10min @ 6'00''/km
• 10 lots of:
  • 100m @ 2'30''/km
  • 45s rest
• 10min @ 6'00''/km

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Intro

From Stephen Scullion (Olympic marathoner), DAY TWO: Running In Hawaii - Tips For Muscle Priming covers how to wake up the body before harder workouts. Watch the full video for context. Here’s what you need to run the session today.

Key points

• Morning productivity: start at 6 am with coffee, handle emails and lighter tasks before the run. Clears the mind so you can focus on the workout.
• Muscle priming: short, explosive 100 m repeats activate fast-twitch fibers and prime the neuromuscular system, making harder threshold efforts feel more manageable.
• Why it works: priming teaches your neuromuscular system to fire more fibers and boosts the heart rate you can sustain.
• Plan context: this sits between travel-related recovery and the next day’s threshold workout (5 x 2 km at threshold pace).

Workout example

Muscle-priming run (4 km total):

1. Warm-up: 5 to 10 min easy jog.
2. 10 x 100 m repeats. Each 100 m in around 14 to 15 seconds (about 90 to 95% effort). Recover with a light jog or walk for 30 to 45 seconds.
3. Cool-down: 5 to 10 min easy jog.

Purpose: activate fast-twitch fibers, sharpen brain-to-muscle connection, and prep the body for the next phase after travel.

Practical tips

• Keep repeats brief and fast. 14 to 15 seconds per 100 m suits most club runners.
• Stay mobile during recovery, don’t stop completely.
• This is a primer, not an all-out effort.
• Schedule the next day’s threshold run (e.g., 5 x 2 km at threshold pace) after solid sleep.
• An early start (6 to 7 am) lets you handle the day and stay alert for the run.

Closing note

Try Stephen’s 10 x 100 m protocol in your next training block. Adjust rest to your fitness and use the Pacing app for target times.

References

• DAY TWO: Running In Hawaii - Tips For Muscle Priming - YouTube (YouTube Video)