Concave/Convex Rules | How to Mobilize a Joint [Part 1]

The video tutorial explains how to determine the direction to mobilize a bone to improve joint movement, focusing on shoulder extension. It covers osteokinematic and arthrokinematic movements, the convex-concave rule, and how to use a flowchart to decide mobilization direction. The tutorial emphasizes understanding the mobile and static components of a joint and applying the convex-concave rule to predict the direction of roll and slide movements.

What is the primary difference between osteokinematic and arthrokinematic movements?

• Both movements are visible.

• Arthrokinematic movements are visible, while osteokinematic movements occur within the joint.

• Both movements occur within the joint.

• Osteokinematic movements are visible, while arthrokinematic movements occur within the joint.

In the context of shoulder extension, which bone is considered the mobile component?

• Radius

• Humerus

• Scapula

• Clavicle

What is the relationship between roll and slide when a convex bone moves on a concave bone?

• They do not occur.

• They occur in opposite directions.

• They occur in the same direction.

• They occur randomly.

What mnemonic can help remember the direction of roll and slide for convex on concave movement?

• If you run into your ex, stay still.

• If you run into your ex, go the opposite direction.

• If you run into your ex, go the same direction.

• If you run into your ex, go forward.

To improve shoulder extension, in which direction should the humerus be mobilized?

• Medially

• Anteriorly

• Posteriorly

• Laterally

What is the role of the flowchart in determining mobilization direction?

• It identifies the type of joint.

• It calculates the speed of mobilization.

• It determines the direction of mobilization based on movement.

• It helps identify the static component.

How do antagonistic movements affect mobilization directions?

• They have the same mobilization directions.

• They have opposite mobilization directions.

• They do not affect mobilization directions.

• They require no mobilization.