Technology
Below are the specifications of the equipment used at the Motion Lab.
To learn more about how our technology works, please visit our free online course (or search on LearningHub):
The Motion Lab CourseKinematics
Measured using 12 Oqus 7+ motion capture cameras by Qualisys.
Specs: 12 MP, 300 fps, 4096×3072 resolution for normal mode (full FOV); 3 MP, 1,100 fps, 2048×1536 resolution for high-speed mode (full FOV); Max fps (reduced FOV) 10,000 fps; 35m max capture distance (with 16mm marker); sunfilter for outdoors; Field of view: 70°, 56°, 47°, 40°, or 20°.
Kinetics
Measured using 5 Optima force plates by AMTI (BMS464508).
Specs: 1200 Hz; 464 x 508 x 82.5 mm; 6 channels (Fx, Fy, Fz, Mx, My, Mz); Fx, Fy, Fz Hysteresis ±0.2% full scale ouptut; Crosstalk ±0.2% of applied load*; 10 V maximum excitation; COP Accuracy less than 0.5 mm*; Strain gage bridge; Sensing Elements; Measurement Accuracy ±0.5% of applied load.*
*Typical Value: Minimum applied load of 50 lb.
Foot Plantar Pressure
Measured using an emed x400 pedobarography platform by Novel.
Specs: 400 or 100 Hz frequency; 1 or 4 sensors/cm^2 resolution; 475 x 320 mm sensor area; 10-1270 kPa pressure range; 10 kPa pressure threshold; ± 5% ZAS accuracy; – 40 db cross talk; 6,080 sensors.
Muscle Activation
Measured using up to 16 wireless Trigno EMG (electromyography) Avanti sensors by Delsys.
Specs: 10-850 Hz or 20-450 sensor bandwidth; 11-22 mV rti EMG input range; 6 IMU channels; 10 mm inter-electrode spacing; 27x37x13mm size; 14g mass; 40 m operating range in RF mode; 4370 sa/sec max sampling rate; 963 sa/sec max accelerometer sampling rate; 741 sa/sec max gyroscope sampling rate; 222 sa/sec max orientation sampling rate; 16 bits sensor resolution; 750nV EMG baseline noise; <-80 dB CMRR; < 1 sampling period inter-sensor latency; on-board butterworth bandpass filter (40/80 dB/dec) and RMS envelope calculation (100 ms window).
