Plyometric Training for Triathletes

Plyometric training involves rapid stretch-shortening cycles — jumping, hopping, and bounding movements that train your muscles to store and release elastic energy quickly.

Why it matters for triathletes: Every running stride involves a stretch-shortening cycle. Your Achilles tendon and calf muscles stretch on landing, then recoil to propel you forward. More efficient recoil = less energy wasted = faster running at the same effort.

The evidence: • Plyometric training improves running economy by 2–5% (Saunders et al., 2006) • Reduces ground contact time by 3–7%, improving cadence • Improves late-race running performance when combined with strength training

Who benefits most: Runners and triathletes who've built a strength foundation (8+ weeks of regular strength training). Plyometrics without adequate strength increase injury risk.

This guide is part of our strength & conditioning cluster.

Discipline	Strength Focus	Stability Focus	Plyo Focus	Mobility Focus
Swimming	Upper body & core	Shoulder stability	Low impact	Shoulder & thoracic
Running	Lower body & hips	Single-leg balance	High impact	Hip & ankle
Cycling	Glutes & quads	Core stability	Medium impact	Hip flexors

Running economy is how much oxygen you consume at a given pace — essentially, your fuel efficiency as a runner.

How plyometrics improve it:

1. Enhanced tendon stiffness — Stiffer tendons (counterintuitively) store and release more elastic energy per stride. Think of a stiff spring vs a floppy one.
2. Faster muscle activation — Your muscles learn to switch on and off more quickly, reducing wasted movement.
3. Reduced ground contact time — Less time on the ground = more time in the air = faster running.
4. Better neuromuscular coordination — Your brain and muscles communicate more efficiently.

Practical impact: A 3% improvement in running economy at marathon pace means ~4 minutes faster over 42.2 km. In a triathlon, where you're running on fatigued legs, this advantage is amplified.

Track your pace improvements with our pace calculator and finish time predictor.

CRITICAL: Progress gradually. Plyometric injuries come from doing too much too soon. Follow this 12-week progression:

Phase 1: Low Impact (Weeks 1–4) • Ankle hops (small, rapid hops in place) — 3 × 15 • Skipping — 3 × 30 metres • A-skips — 3 × 20 metres • Lateral shuffles — 3 × 20 metres • Total: 40–60 contacts per session

Phase 2: Medium Impact (Weeks 5–8) • Split squat jumps — 3 × 6 each leg • Bounding — 3 × 20 metres • Box step-ups with drive — 3 × 8 each • Single-leg hops — 3 × 8 each • Total: 60–80 contacts per session

Phase 3: High Impact (Weeks 9–12) • Box jumps — 3 × 5 • Depth jumps (advanced) — 3 × 4 • Single-leg bounding — 3 × 6 each • Hurdle hops — 3 × 6 • Total: 60–100 contacts per session

Prerequisites: Complete at least 8 weeks of strength training before starting Phase 2, and 12 weeks before Phase 3.

When to do plyometrics: • After a thorough warm-up but BEFORE endurance work • On easy training days (not before or after key sessions) • Never on fatigued legs — quality is everything

When NOT to do plyometrics: • Within 48 hours of a key interval or tempo session • During heavy training blocks with 12+ hours per week • During taper or race week • If you have any lower limb pain or injury

Sample weekly placement: • Monday: Easy swim + plyometrics (15 min) • Wednesday: Easy bike + short plyometric warm-up (10 min) • Key sessions (intervals, long runs, brick workouts) have no plyometric component

For full scheduling, see the triathlon workout split. For brick workout guidance, see our brick workouts guide.

Beginner Session (15 min, low impact)

Exercise	Sets × Reps	Rest
Ankle hops	3 × 15	30s
A-skips	3 × 20m	Walk back
Lateral shuffle	3 × 20m	Walk back
Skipping	3 × 30m	Walk back
Squat jump (low)	2 × 6	60s

Intermediate Session (20 min, moderate impact)

Exercise	Sets × Reps	Rest
Split squat jump	3 × 6 each	60s
Bounding	3 × 20m	Walk back
Single-leg hop	3 × 8 each	45s
Lateral bound	3 × 6 each	45s
Box jump (low box)	3 × 5	60s

Advanced Session (20 min, high impact)

Exercise	Sets × Reps	Rest
Depth jump	3 × 4	90s
Single-leg bounding	3 × 6 each	60s
Hurdle hops	3 × 6	60s
Box jump (high)	3 × 5	90s
Sprint start	3 × 10m	Walk back

A plyometric box is the key equipment investment for these sessions.

1. Too much volume: Plyometric quality degrades rapidly with fatigue. If you can't land softly and with control, stop the set.

2. Skipping the strength base: Plyometrics amplify existing strength. Without a foundation (at least 1.5× bodyweight squat equivalent), injury risk increases significantly.

3. Poor landing mechanics: Always land softly with bent knees and controlled hips. If your knees collapse inward, work on hip stability first.

4. Doing plyo when fatigued: Plyometrics should always be performed fresh. Fatigued plyometrics teach your body bad movement patterns.

5. Ignoring recovery: Plyometric training creates significant muscular stress. Allow 48–72 hours between plyometric sessions and don't schedule hard running the next day.

6. No progression plan: Follow the phase progression above. Don't jump straight to depth jumps.

Plyometric training sits between strength and speed — it's the bridge that converts gym gains into on-course performance.

• Running strength provides the force foundation that plyometrics amplify • Stability training ensures safe landing mechanics • Mobility training maintains the range of motion needed for full extension • Cycling strength benefits from power-focused plyometrics • Swim strength has less direct plyometric crossover but benefits from general athleticism

See the complete workout split for full integration.

Strength & Conditioning Cluster: • Strength Training for Swimming • Strength Training for Running • Strength Training for Cycling • Stability Training for Triathletes • Plyometric Training for Triathletes • Mobility Training for Triathletes • The Perfect Triathlon Workout Split