What are the most effective ways to optimize biomechanics in a robotic exoskeleton?

1 Biomechanical modeling

One of the first steps to optimize biomechanics in a robotic exoskeleton is to create a biomechanical model of the human-exoskeleton system. A biomechanical model is a mathematical representation of the structure, dynamics, and interactions of the bones, muscles, joints, and sensors of the system. It can help to estimate the forces, torques, and motions of the system, as well as to identify the constraints and limitations of the human and the exoskeleton. A biomechanical model can also be used to simulate different scenarios and test different design parameters.

2 Biomechanical sensing

Another important aspect of optimizing biomechanics in a robotic exoskeleton is to use biomechanical sensing to measure and monitor the state of the system. Biomechanical sensing refers to the use of sensors, such as accelerometers, gyroscopes, force sensors, electromyography (EMG), and motion capture, to collect data on the position, orientation, acceleration, force, and muscle activity of the system. Biomechanical sensing can help to provide feedback and feedforward signals to the exoskeleton controller, as well as to detect and prevent errors, faults, and injuries.

3 Biomechanical control

A third way to optimize biomechanics in a robotic exoskeleton is to design and implement a biomechanical control strategy that can coordinate and synchronize the movements of the human and the exoskeleton. A biomechanical control strategy is a set of rules and algorithms that determine how the exoskeleton should actuate and respond to the user's intentions and actions. A biomechanical control strategy can be based on different approaches, such as impedance control, adaptive control, or reinforcement learning. A biomechanical control strategy should aim to achieve stability, safety, comfort, and performance of the system.

4 Biomechanical adaptation

A fourth way to optimize biomechanics in a robotic exoskeleton is to enable biomechanical adaptation of the system over time. Biomechanical adaptation refers to the ability of the system to adjust and improve its behavior and performance based on the user's feedback, preferences, and goals. Biomechanical adaptation can involve learning from the user's data, updating the parameters of the model and the controller, or personalizing the exoskeleton to the user's characteristics and needs. Biomechanical adaptation can help to increase the user's satisfaction, engagement, and compliance with the exoskeleton.

5 Biomechanical evaluation

A fifth way to optimize biomechanics in a robotic exoskeleton is to conduct biomechanical evaluation of the system in different conditions and contexts. Biomechanical evaluation refers to the use of quantitative and qualitative methods to assess the performance, effectiveness, and impact of the exoskeleton on the user's biomechanics and functionality. Biomechanical evaluation can include measuring the kinematics, kinetics, energetics, and muscle activity of the system, as well as the user's perception, experience, and satisfaction. Biomechanical evaluation can help to validate, compare, and improve the design and control of the exoskeleton.

6 Biomechanical optimization

A sixth way to optimize biomechanics in a robotic exoskeleton is to apply biomechanical optimization techniques to find the optimal solutions for the system. Biomechanical optimization refers to the use of mathematical methods, such as optimization algorithms, to minimize or maximize a certain objective function, such as energy consumption, joint stress, or task completion time, subject to certain constraints, such as physical limits, safety requirements, or user preferences. Biomechanical optimization can help to explore the trade-offs and synergies between different aspects of the system, as well as to generate novel and innovative solutions.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?