Concave/Convex Rules | How to Mobilize a Joint [Part 2]

The video tutorial explains the concepts of open and closed chain ankle dorsiflexion, focusing on the mobilization of the talus and tibia. It covers the convex-concave rule to determine the direction of mobilization and highlights the differences between open and closed chain movements. The tutorial also provides practical examples and encourages viewers to refer to previous videos for a deeper understanding.

What is the primary focus of the video tutorial's introduction?

• Detailed anatomy of the ankle

• History of ankle injuries

• Importance of previous videos

• Exercises for ankle strength

In open chain ankle dorsiflexion, which bone is considered more mobile?

• Calcaneus

• Talus

• Tibia

• Fibula

According to the convex-concave rule, if a convex surface moves on a concave surface, how do the roll and slide directions relate?

• Same direction

• Perpendicular directions

• No relation

• Opposite directions

During open chain dorsiflexion, in which direction does the talus primarily move?

• Posteriorly

• Anteriorly

• Medially

• Laterally

What is the direction of mobilization for the talus in open chain dorsiflexion?

• Posteriorly

• Medially

• Anteriorly

• Laterally

In closed chain ankle dorsiflexion, which bone becomes the mobile component?

• Fibula

• Tibia

• Talus

• Calcaneus

How do the roll and slide directions relate in closed chain dorsiflexion according to the convex-concave rule?

• Same direction

• Perpendicular directions

• Opposite directions

• No relation

What is the direction of mobilization for the tibia in closed chain dorsiflexion?

• Anteriorly

• Laterally

• Medially

• Posteriorly

What changes when transitioning from open chain to closed chain dorsiflexion?

• The muscle involved

• The type of joint

• The static bone

• The mobile bone

In open chain plantar flexion, in which direction should the talus be mobilized?

• Anteriorly

• Posteriorly

• Medially

• Laterally