Disclosed embodiments describe techniques for body analysis based on wearable sensors on an individual. The body analysis is based on movement assessment metric usage. The wearable sensors include muscle activity sensors, skeletal movement sensors, stretch sensors, inertial measurement sensors, or linear displacement sensors. Data is obtained from a wearable muscle activity sensor. Muscle activity over a time period is determined using the data obtained from the wearable muscle activity sensor. A movement assessment metric is calculated based on the muscle activity over the time period. The movement assessment can include body posture symmetry. The movement assessment metric is output, where the outputting can include displaying an animation of the muscle activity in a context of an overall body. The movement assessment can comprise an ergonomic assessment for the individual.