Articles on popular biomechanics topics and related DIY information (with interesting applications):
Motion Capture : Kinetics & kinematics, optical & IMU-based
Health & fitness monitoring: Heart rate monitors, pulse detectors, daily activity monitors, weight & temperature sensors, energy expenditure measurement.
EMG: Tools & resources on DIY Electromyography (muscle activity sensing).
The Perfection Point by Brenkus
Basic Biomechanics of the Musculoskeletal System by Nordin and Frankel
Muscles, Reflexes, and Locomotion by McMahon
Biomechanics and Motor Control of Human Movement by David Winter
Energy Expenditure by Brychta et al
Other biomechanics classes:
UD Clinical Biomechanics