The core library uses accelerometer data measured from any body location and delivers in real-time the following foundational running biomechanical features.
Power is the energy, or work, produced, in watts. Running Power is a superior metric for training and tracking workload. Power immediately reacts to any situational change and helps manage an ideal running effort.
Contact time us the time the runner's foot is actually on the ground.
Reducing contact time (while maximizing force development) improves the running economy.
Symmetry measures the difference, left vs. right, in the runner's biomechanics (e.g. stride length or contact time).
Reduced symmetry can be an indicator of potential injury.
Cadence measures the number of steps per minute. Each runner has an ideal cadence for maximizing running economy.
Managing cadence can also reduce over striding and risk of injury.
Flight time is the time from toe off of one foot to touch down of the other foot.
Reactivity is the ratio of flight time vs. contact time. This is an indication of the “springiness” of the runner's legs.
Optimal reactivity enables the runner to take full advantage of the elasticity in their connective tissue and muscles.
Undulation is the vertical movement of the runner's center of mass.
Reducing undulation enables the runner to put more energy into forward motion.
Regularity measures the consistency over time of the runner's biomechanics while running.
Degradation of regularity during the run is an indication of fatigue.
Stiffness is an indicator of the runner’s ability to store and return elastic energy in the lower limbs.
The ideal stiffness leads to improved efficiency.
SPEED / PACE
Estimates speed/pace based on the most accurate sensor available, either GPS or accelerometer
The calibrated running model, personalised for each runner, allows an accurate estimation speed/pace even without GPS.
Step Length is the distance from toe off to landing.
Correcting this improves economy and reduces injury risk.
Estimates distance based on the most accurate sensor available, either GPS or accelerometer.
The calibrated running model, personalised for each runner, allows an accurate estimation of the total distance even without GPS.
According to science, a calorie is the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius. However it is widely used as a way of quantifying the amount of energy contained in food or required by our body for executing a given activity.
This number represents the current walking and running total step count since the start of the workout.