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):
Kinematics
Measured using 12 Oqus 7+ motion capture cameras by Qualisys
Specs: 12 MP, 300 fps, 4096x3072 resolution for normal mode (full FOV); 3 MP, 1,100 fps, 2048x1536 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)