Movement Science Week 10

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What is the primary function of the knee extensors during stair ascent?

To generate most of the energy to move the body forward (correct)
To facilitate the swing phase by flexing the knee
To generate eccentric force for energy absorption
To halt forward motion during foot placement

Which phase of the sit to stand movement begins just before the buttocks are lifted from the seat?

Weight shift or flexion momentum (correct)
Lift or extension
Transfer of momentum
Stabilization phase

During the controlled descent phase of stair walking, which muscle groups are primarily engaged?

Hamstrings and soleus muscles
Eccentric contractions of the gastrocnemius and quadriceps (correct)
Hip flexors and quadriceps
Ankle dorsiflexors and tibialis anterior

How does the use of armrests affect the sit to stand movement?

It reduces the extension moment needed at the hip by about 50% (D) Signup and view all the answers

What characterizes the initial impact forces during the running gait cycle?

Initial impact force is lower than propulsion phase force (D) Signup and view all the answers

Which aspect does NOT fall under the movement continuum?

Decision-making (A) Signup and view all the answers

What is a potential outcome if the expected performance is not achieved during a movement task?

Consideration of task regression (A) Signup and view all the answers

Which of the following is an example of an environmental regression?

Providing external support while standing (C) Signup and view all the answers

In the structured movement analysis framework, what is the primary focus during the observation phase?

Identifying natural movement patterns and strategies (C) Signup and view all the answers

What does the term 'initial conditions' refer to in the movement continuum?

The individual's state and environmental conditions before the task (B) Signup and view all the answers

Which cueing method typically requires the least amount of assistance during task performance?

Verbal cueing (A) Signup and view all the answers

What is a characteristic of task progressions in structured movement analysis?

Making the task more complex (C) Signup and view all the answers

Which action is required for the step up/down task?

Step up onto the step leading with the right leg, then step down backward (A) Signup and view all the answers

What is the main objective of the walking task as described?

To walk at a comfortable speed and return to the start point (A) Signup and view all the answers

Which of the following is NOT a requirement for the standing task?

To shift weight from one leg to the other repeatedly (B) Signup and view all the answers

In the reach/grasp/manipulate task, how far is the cup placed from the person?

6 inches beyond arm length (C) Signup and view all the answers

What is the expected outcome when performing the reach/grasp/manipulate task?

To successfully pour the contents into a receptacle without dropping the cup (D) Signup and view all the answers

For the reach/grasp/manipulate task, which position should the person be in at the start?

Sitting in a chair with back support (B) Signup and view all the answers

During the standing task, what is the primary guidance given regarding hand use?

Hands must not be used at all (B) Signup and view all the answers

What type of surface is required for the standing task?

A level, firm surface (A) Signup and view all the answers

Which leg should lead when stepping down during the step up/down task?

The leg that was used to step up (C) Signup and view all the answers

What is a crucial instruction for the walking task?

To turn around at 10m and return (C) Signup and view all the answers

Structured Movement Analysis

A structured way to observe natural movement patterns and strategies during a task, aiming to understand movement dysfunction.

Movement Continuum

A framework for organizing movement observations, from initial conditions through initiation, execution, termination, and outcome.