Achilles and Calf Activation Drills Run Session

Session Overview

This 45-minute activation drills session targets the Achilles tendon and calf complex — the most injury-prone area for triathletes building run volume. By combining eccentric loading drills, movement prep exercises, and an easy running effort, you’ll strengthen connective tissue, improve ankle stiffness, and reduce your injury risk. Ideal for athletes returning from a rest block, increasing weekly mileage, or managing early Achilles soreness.

What You’ll Need

• A step, kerb or slightly raised surface for heel drop drills
• Running shoes
• A flat outdoor surface (pavement, park, track)

Warm-Up (10 minutes)

Walk briskly for 3 minutes, then move through 3 minutes of dynamic mobility: leg swings (front-to-back, side-to-side, 10 each leg), ankle circles (10 each direction per foot), and hip openers (5 each side). Finish with 4 minutes of very easy jogging at conversational pace.

Main Set

Perform the activation circuit, then run the easy running block.

• Eccentric heel drops: Stand on a step with the ball of your foot on the edge. Rise up on both feet, then lower slowly on one foot for 3 seconds. 3×15 each leg. This is the gold-standard Achilles tendon loading exercise.
• Single-leg calf raises: Off the floor, slow and controlled. 3×20 each leg. Feel the full range of motion through the ankle.
• Toe walking: 2×20m on the tips of your toes. Builds intrinsic foot and lower calf strength.
• Heel walking: 2×20m on your heels, toes lifted. Works the tibialis anterior and improves dorsiflexion.
• Easy running block: 20 minutes at easy Zone 2 pace. The goal is blood flow and rhythm, not fitness — this is active recovery following the strength drills.

Cool-Down (5 minutes)

Walk for 2 minutes, then hold a standing calf stretch (straight leg and bent knee) for 45 seconds each side. Follow with a seated towel stretch if available. Never stretch into pain — gentle tension only.

Coaching Notes

• If you have existing Achilles pain (more than mild stiffness), consult a physio before starting this session. Eccentric loading can aggravate an acute injury.
• This session is most effective done twice a week, consistently. Sporadic sessions won’t build the tendon adaptations you need.
• Common mistake: rushing the eccentric phase. The 3-second lowering is where the adaptation happens — don’t rush it.
• Scale up: add a weighted vest or hold dumbbells once bodyweight becomes easy.
• RPE for the running block: 3 out of 10. This is a recovery jog, not a training run.