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Check out my ultimate (frisbee) analysis! The wearable sensors (Vicon Blue Trident IMU) I used to collect these data took 10 minutes to turn on, calibrate, apply to my body, and begin collection. Using a combination of existing OpenSim tools and my custom MATLAB script, I obtained joint angles from the sensors, adjusted the kinematic data to move with the feet, and calculated muscle forces required to drive this motion. I've enjoyed playing ultimate frisbee for years, but I learned a few things from this analysis. The muscles that twist me backward during the wind-up are crucial to the final result and keep applying force up until I plant my right foot. This allows me to pick up greater speed as my torso rotates forward. My arm muscles begin pulling the disc through the rotation before my torso begins to rotate, but the velocity of my hand increases dramatically once I plant my right foot. These are things I may have known instinctively from playing the game, but would not have thought about without the ability to collect and analyze the underlying data.
A smart phone and a handful of sensors are all you need to collect the data for this approach, meaning you can do so in true real-world conditions. Let me know if you have a project you think might benefit from an approach like this.
