Spasticity in Multiple Sclerosis: Why Muscles Feel Tight (and How to manage it)

What Is Spasticity?

Spasticity is one of the most common symptoms in individuals with multiple sclerosis, affecting a large portion of people at some point in their disease course.

It is often described as muscle tightness or stiffness, but clinically, it is an increase in muscle tone caused by changes in the nervous system.

In MS, damage to the brain and spinal cord disrupts how signals travel between your brain and muscles.

Instead of muscles turning on and off smoothly, they stay partially activated.

That’s why spasticity can feel like:

• Resistance when you try to move

• A constant “tight” feeling

• Sudden spasms or pulling

• Difficulty relaxing muscles

This is not just a muscle problem. It is a control problem.

Why Muscles Feel Tight in MS

The root of spasticity comes from disrupted communication in the central nervous system. When the normal inhibitory signals (the ones that tell muscles to relax) are reduced, muscles become overactive. This leads to:

• Increased muscle tone

• Reduced movement efficiency

• Fatigue during simple tasks

• Pain or cramping

Spasticity also rarely exists alone. It often shows up alongside:

• Fatigue

• Pain

• Sleep disruption

• Mobility challenges

That’s why treating it in isolation rarely works.

Why “Just Stretch It” Falls Short

Stretching is often the first recommendation people hear. While stretching has a role, it is not the full solution. Spasticity is driven by the nervous system, not just muscle length. Aggressive or forced stretching can:

• Increase muscle guarding

• Trigger more stiffness

• Lead to frustration when results don’t last

  
  

Research and clinical guidelines continue to emphasize that rehabilitation-based approaches must go beyond passive stretching.

What works better is a combination of strategies that influence both the muscles and the nervous system.

How to manage Spasticity In Multiple Sclerosis: A More Effective Approach

1. Slow, Rhythmic Movement

Slow, controlled movement helps regulate the nervous system and reduce overactivity.

Examples:

• Controlled walking

• Repeated sit-to-stands

• Gentle cycling

The goal is not intensity. It is consistency and control.

2. Prolonged, Intentional Stretching

Short, aggressive stretches often don’t change spasticity.

Instead:

• Hold stretches longer (30–60 seconds or more, 2-3 repetitions)

• Focus on breathing

• Stay below the threshold of discomfort

This helps signal safety to the nervous system.

3. Positioning Matters More Than You Think

How you sit, lie, and stand directly affects muscle tone.

Strategic positioning can:

• Reduce stiffness

• Prevent worsening tightness

• Improve comfort throughout the day

Examples:

• Avoid staying in one position too long (and take note of positions that tend to increase spasticity)

• Use supported positions that allow muscles to relax

• Align the body to reduce unnecessary tension

  
  

4. Consistency Over Intensity

Spasticity responds better to frequent, lower-load input than occasional intense effort. That means:

• Daily movement

• Repeated exposure to controlled patterns

• Building tolerance over time
  

The Bigger Picture

Spasticity is not something you “push through.” It is something you learn to work with and influence. When you understand what your body is doing, you can:

• Move with less resistance

• Reduce discomfort

• Improve confidence in daily activities

And most importantly, you stop feeling like your body is working against you.

Final Thoughts

If your muscles feel tight, stiff, or unpredictable, it does not mean you are doing something wrong. It means your nervous system needs a different kind of input.

With the right strategies, movement can feel smoother, more controlled, and less frustrating. That is the goal.