Dynamic vs Static Stretching: When and Why We Should Stretch?

When it comes to stretching, it can be confusing to know when and what type to use. You’ve probably heard conflicting advice like always stretch before exercise or never stretch before exercise.

The truth is that stretching can be beneficial, when you use the right type at the right time.

In this post, we’ll break down the difference between dynamic and static stretching, when each should be used, and what’s happening in your body when you perform them.

What is Dynamic Stretching?

Dynamic stretching involves moving a joint through its range of motion in a controlled and repetitive way, rather than holding a stretch in one position.

Examples of dynamic stretching include:

• Leg swings

• Walking lunges

• Arm circles

• Hip openers

• Torso rotations

Dynamic stretching helps prepare the body for movement by increasing blood flow, activating muscles, and improving joint mobility. Because the muscles are actively contracting and relaxing, dynamic stretching allows your body to warm up without reducing strength or power.

Best times to use dynamic stretching

• Before exercise

• Before sports or running

• As part of an active warm-up - an active warm-up usually incorporates light cardio, dynamic stretching/mobility and traget muscle activation.

What is Static Stretching?

Static stretching is what most people traditionally think of when they hear the word stretching.

It involves moving a muscle into a lengthened position and holding that position for a period of time, anywhere for 30 secs to 5 mins.

Common examples include:

• Hamstring stretch

• Standing quad stretch

• Calf stretch against a wall

• Shoulder stretch across the body

When you hold a static stretch, the muscle and surrounding connective tissue gradually relax and lengthen, which can improve passive flexibility and range of motion.

However, static stretching can also temporarily reduce muscle strength and power output. Because of this, it may not be the best option immediately before activities that require explosive movement, such as sprinting, jumping, or heavy lifting.

Best times to use static stretching

Static stretching is generally most useful:

• After workouts

• During dedicated mobility or flexibility sessions

• As part of rehabilitation programs

What’s Happening in Your Body During Stretching?

Both types of stretching influence your muscles, connective tissues, and nervous system, but they do so in different ways.

With static stretching, the muscle is held in a lengthened position. Over time, this signals the nervous system to reduce muscle tension, allowing the muscle to relax and lengthen. While this improves flexibility, it can also temporarily reduce the muscle’s ability to generate force.

With dynamic stretching, movement stimulates the nervous system and increases blood flow, joint lubrication, and muscle activation. This helps improve coordination and prepares the body for physical activity.

When Should You Stretch?

A simple rule to follow is:

Before activity:Use dynamic stretching or an active warm-up to prepare your body for movement.

After activity:Use static stretching to help maintain or improve flexibility.

Both forms of stretching have value, the key is simply using them at the appropriate time.

Stretching doesn’t have to be complicated. Understanding the difference between static and dynamic stretching can help you warm up more effectively, improve mobility, and reduce your risk of injury.

If you’re unsure what type of stretching routine is best for your activity or injury history, working with a certified athletic therapist can help you build a routine tailored to your needs.