Pedro López runs the ERGOBIKE BIOMECHANICS studio in Murcia, where he trains and works with cyclists and triathletes. He is also passionate about biomechanics and uploads video tutorials related to cycling analysis on his YouTube channel. In this post, we present some examples Pedro has shared using the 3DMA tool.
Pedro holds a degree in Physical Activity and Sports Sciences from the University of Granada and a Master’s in Sports Planning and Management. He specialises in cycling biomechanics, is a national triathlon coach, and teaches the RFEC Cycling Biomechanics Technician Course.
Coordination Curves Analysis with 3DMA (STT System)
Analysis of new graphs provided by the 3DMA software regarding coordination curves.
Cycling Biomechanics – Motor Cost Theory
Motor cost theory indicates that, to reduce joint moments at the hip, knee, and ankle, it is beneficial for the pedal to be slightly tilted at peak torque (crank 90–110°), so that the line of force passes closer to all joints.
The shoe’s sole drop or angulation helps with this, as completely flat shoes would require much more ankle dorsiflexion to orient the pedal correctly.
For further reading on the subject, Alvarez’s thesis (1995) is recommended.
3D Cycling Biomechanics – Changes in Kinematic Values from High to Low Handlebar Grip
Practical case of a cyclist with good mobility, flexibility, and pelvic stability when using high and low handlebar grips.
In this example, when the cyclist switches to the lower grip, pelvic rotation remains at the same values and ankle inclination does not increase, as the cyclist’s overall flexibility and mobility prevent tension in the posterior chain when changing to the lower grip.
Cycling Biomechanics – Influence of Intensity and Cadence on Kinematic Values
Video presenting a practical case showing the modifications in kinematic values due to changes in pedalling cadence and intensity.
Cycling Biomechanics – Ankle Kinematic Asymmetry (Part 1)
A practical case of a cyclist with a high degree of ankle kinematic asymmetry.
Cycling Biomechanics – Standing Pedal Analysis: EMG, Kinetics, and Kinematics
Explanatory video on the modifications in EMG, kinematics, and kinetics that occur when pedalling standing versus seated.