If you've coached cricket for any length of time, you've said something like: "Your front knee is collapsing" or "You're not getting your weight through at impact." You could see it. But you couldn't measure it, prove it changed, or explain exactly why it was happening.
Cricket biomechanics is the science that gives numbers to what coaches have always seen intuitively — turning observations into measurements, and measurements into a system for improving performance and preventing injury.
The key insight
Biomechanics does not replace coaching. It gives coaching a measurement instrument. Your eye sees the problem. Biomechanics tells you exactly what the measurement is, whether it changed, and which phase is the root cause.
The four bowling phases
CricMotion analyses the bowling action across four distinct phases, each scored 0–100:
- Run-up: Posture at gather, head steadiness, non-bowling arm carriage. Most bowlers' run-ups are strong — problems here are rare but significant.
- Impulse stride: The bound before front-foot contact. Jump height, lead-arm reach, arm and knee timing. Where mechanical inefficiencies first appear.
- Delivery stride: The root cause phase in most analyses. Front-foot contact, knee angles, bracing time, trunk position. If there's a problem, it's most likely here.
- Follow-through: Arm deceleration, trunk continuation, balance at finish. Flags here are almost always downstream consequences — fix the delivery stride and follow-through often resolves.
The Bowler's Triangle
CricMotion organises bowling findings into one framework that maps measurements to what matters:
The Bowler's Triangle has three sides: Pace (front knee, bracing time, hip-shoulder separation), Line & Length (head steadiness, release point consistency, arm path), and Longevity (lumbar stress, shoulder overuse, follow-through mechanics).
What AI makes possible
Traditional biomechanics analysis required a lab, high-speed cameras, reflective markers, and a specialist analyst — ₹2–5 lakh per session. CricMotion runs the same analysis from one phone video — any phone, any cricket ground. The access gap between elite and grassroots cricket is now measured in the cost of a phone video upload.
"Most problems in young fast bowlers come down to three things: the rear knee at release, the bracing time, and the lead arm at the bound. These are invisible to the naked eye at bowling speed. The numbers tell you what your eye missed. — Arjun Sir"