BPK 201- Biomechanics questions and
answers rated A+
Inverse Dynamics - correct answer ✔✔Used to solve for unknown forces/moments that must
have caused a movement given a system model, inertial properties, and measurements of
movement.
Forward Dynamics - correct answer ✔✔Used to solve for the unknown movement (kinematics)
that must result given a system model, the inertial properties and specification of the forces.
System Identification - correct answer ✔✔Used to solve for the unknown inertial that must be
present given a system model, specification of forces, and measurements of forces.
Biomechanical Indeterminancy - correct answer ✔✔When more than one muscle is active
leaving more unknown forces than equations.
Static Optimization - correct answer ✔✔Used to solve the indeterminancy problem by finding
the optimal value of the objective function at each instant in time.
Dynamic Optimization - correct answer ✔✔Used to solve the indeterminancy problem by
optimizing the objective function over a complete task.
How does the brain use Inverse Dynamics? - correct answer ✔✔The brain uses inverse
dynamics to solve for unknown forces that are needed to complete a task through known
movements. It does this via an "internal model" encoded in the neurons. The internal model
contains information about the limb segments, joints, inertial properties etc.
answers rated A+
Inverse Dynamics - correct answer ✔✔Used to solve for unknown forces/moments that must
have caused a movement given a system model, inertial properties, and measurements of
movement.
Forward Dynamics - correct answer ✔✔Used to solve for the unknown movement (kinematics)
that must result given a system model, the inertial properties and specification of the forces.
System Identification - correct answer ✔✔Used to solve for the unknown inertial that must be
present given a system model, specification of forces, and measurements of forces.
Biomechanical Indeterminancy - correct answer ✔✔When more than one muscle is active
leaving more unknown forces than equations.
Static Optimization - correct answer ✔✔Used to solve the indeterminancy problem by finding
the optimal value of the objective function at each instant in time.
Dynamic Optimization - correct answer ✔✔Used to solve the indeterminancy problem by
optimizing the objective function over a complete task.
How does the brain use Inverse Dynamics? - correct answer ✔✔The brain uses inverse
dynamics to solve for unknown forces that are needed to complete a task through known
movements. It does this via an "internal model" encoded in the neurons. The internal model
contains information about the limb segments, joints, inertial properties etc.
