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Apps deliver workouts. CIS delivers results.

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PPEA-12™ • Power Profile Diagnostic

Know Your Limiter. Train With Precision.

We use your historical power data (your power-duration curve) to identify your energy system limiter—then turn it into clear next steps for training, pacing, and event/race execution.

Book Power Lite Diagnostic

Power Profile

See what your curve says—strengths, gaps, and what’s missing to level up.

Limiter Selection

limiters identified from your historical best efforts—no guessing, no random sessions.

Prescription

Actionable direction—what to train next, and how to execute it clean.

The System™ 6×6 • Energy Systems

Your limiters live in these six performance systems

The diagnostic pinpoints which system is limiting performance right now—then aligns your training to fix it.

Pmax (Peak Power) Acceleration

• Shows up: sprint jump, snap, closing gaps.
• Limiter sign: you get gapped on accelerations even when endurance feels solid.
• Fix direction: short maximal efforts with full recovery and clean execution.

VO2 Max Ceiling

• Shows up: 2–5 min surges, attacks, hard climbs.
• Limiter sign: steady is fine, surges crack you.
• Fix direction: structured VO2 intervals + pacing discipline.

TTE (Time to Exhaustion) Hold

• Shows up: holding strong steady power.
• Limiter sign: power fades early at race-pace.
• Fix direction: longer controlled intervals + structure.

FRC (Anaerobic Capacity) Matches

• Shows up: repeated accelerations (your matchbook).
• Limiter sign: you run out of matches late.
• Fix direction: repeatability work + restraint between efforts.

mFTP (60-Minute Power) Threshold

• Shows up: sustainable pressure and steady speed.
• Limiter sign: you can surge but can’t hold.
• Fix direction: threshold progressions + cadence control.

Stamina Durability

• Shows up: durability as fatigue builds.
• Limiter sign: power/cadence fall apart after 60–120 minutes.
• Fix direction: endurance structure + fatigue-resistant execution.

Outcome: cleaner execution + more repeatable output because your plan targets what the data proves is missing.

What Athletes Say About CIS Workout Structure

John Showers (VA)

Before CIS, Zwift workouts felt random and didn’t translate outside. CIS uses clear cadence targets and progressive structure that builds real-world fitness without burnout.

Chad Redin (CO)

Before CIS, I trained too hard, too often, with no recovery plan. With CIS 6×6, every workout has purpose—progressive, challenging, and sustainable—and my power, cadence, endurance, and FTP are rising.

Shelley S. (NYC)

Before CIS, I was guessing. Now every session has meaning, the weeks build with purpose, and I’m becoming a stronger, more confident rider for real rides.

Sabian Toussaint (Charlotte, NC)

Before CIS, I had workouts but no real structure behind them. CIS delivers phased training where every session has purpose—and I’m already seeing results (FTP) within three months.