1. A method for monitoring motion parameters and providing near-instantaneous user feedback from real-time motion sensor data comprising: loading a template motion profile, the template motion profile describing a multi-dimensional representation of acceleration and orientation over time; receiving, from one or more inertial measurement units, real-time sensor data from a motion sensor while a user performs a test motion with equipment, the motion sensor being mounted on equipment or affixed to the user, wherein receiving the real-time sensor data from the motion sensor includes: receiving real-time sensor data from a plurality of sensors, the sensor data measuring a common metric and being received from each of the plurality of sensors at a common frequency and a unique offset based on the frequency and number of the plurality of sensors; and combining the real-time sensor data from the plurality of sensors by interlacing the sensor data, the interlacing resulting in the test motion profile having a sampling rate that is higher than a sampling rate of any one of the plurality of sensors; calculating a test motion profile based on the real-time sensor data, the test motion profile describing a multi-dimensional representation of the test motion performed by the user; comparing the template motion profile to the test motion profile to determine a deviation amount for the test motion profile indicating how the test motion deviated from the template motion profile using one or more of: a Fourier transform and a least squares difference calculation; and providing a graphical user interface that displays, and allows the user to manipulate a viewing angle of, a multi-dimensional rendering of the test motion profile, where the graphical user interface further displays the deviation amount in relation to the multi-dimensional rendering of the test motion profile.