Question

describe the process or strategy you used to obtain the manual solution for the swing phase of walking. How effectively were you able to recreate the target motion represented by the inverse kinematics results? What challenges did you face in matching the target motion as closely as possible? Why is it difficult to match the target motion exactly? What does this tell you about how hard or easy it is for the CNS to control our movements?

Answer 1

To manually recreate the swing phase of walking using kinematics, you must identify the motion's known aspects and apply kinematic equations while considering constraints like precision and human variability. The central nervous system's role in controlling movements is highlighted by the challenges faced in matching the motion exactly.

Step-by-step explanation:

To recreate the swing phase of walking manually, first, you must understand the principle of kinematics and rotational kinematics. The strategy involves examining the situation to determine that rotational motion is involved, identifying the knowns, and then applying the kinematic equations to these knowns to solve for the unknowns. A practical example might involve observing a partner swinging a golf club, aiming to achieve as close as possible to uniform circular motion, and then measuring relevant quantities such as the radius of curvature and velocity.

Motion capture systems can greatly aid in the recreation process by providing precise data that can be matched against the manual attempts. Challenges in matching the target motion manually include limitations in the precision of observations and measurements, as well as the variability in human performance. The difficulties inherent in exactly matching target motion demonstrate the complexity the central nervous system (CNS) must manage to control our movements effectively.

Despite using a methodical approach, slight discrepancies will likely occur due to human error, environmental factors, and the limitations of manual measurements. This goes to show that the CNS's task of controlling our movements is incredibly complex, involving continuous adjustments and feedback mechanisms to achieve seemingly simple tasks like walking.