Mobility vs Flexibility: What's the Difference?

They're Not the Same

Flexibility: Passive range of motion (how far a muscle can stretch)

Mobility: Active range of motion (how far you can move with control)

Why It Matters

You can be flexible but not mobile:

What you actually need: Mobility (controlled range of motion)

Examples

Flexible but Not Mobile

Mobile

What This Means for Training

For Flexibility (Passive)

For Mobility (Active)

Which Do You Need?

Most people need mobility more than flexibility.

Focus on:

1. Being able to actively reach positions

2. Having strength throughout range

3. Control, not just passive range

The Bottom Line

Mobility vs flexibility:

1. Flexibility = passive — How far you can be stretched

2. Mobility = active — How far you can move with control

3. Mobility is more useful — Control matters

4. Train both — But prioritize mobility

Foundational Rehab prioritizes functional mobility.