Why Static Stretching Is Not Ideal Before Strength, Power, or High-Velocity Training
- undefeatedptandper
- Jan 4
- 3 min read
By Dr. Carmen Jansante, PT, DPT, CSCS
Undefeated Physical Therapy & Performance
Static stretching has been a staple in warm-ups for decades. Most athletes were taught to stretch before practice, before lifting, and before competition. While static stretching does have value, doing it immediately before strength, power, or high-velocity activity is not ideal for performance—and most athletics fall into that category.
Let’s break down why.
What Is Static Stretching?
Static stretching is when we take a muscle to the end of its available range of motion and hold it there for a prolonged period of time. Research suggests that to create length changes within the muscle—specifically the muscle fibers (the sarcomeres)—you generally need to hold these stretches for 30–60 seconds.
This can be effective for improving passive range of motion, but the problem comes when we apply this right before activities that require strength, speed, and power.
Why Static Stretching Hurts Strength and Power Output
Research has consistently shown that static stretching performed immediately before training or competition can reduce:
Maximal strength
Power output
Sprint performance
Why does this happen?
One major reason is a reduction in muscle-tendon stiffness.
Think of your muscles and tendons like a rubber band. When a rubber band is stretched quickly and released, it snaps back with force and speed. That elastic recoil is what helps us jump higher, sprint faster, and produce explosive power.
Now imagine taking that same rubber band and stretching it for a long time, over and over. Eventually, it doesn’t snap back as fast or as hard.
That’s exactly what happens when we hold long static stretches before training:
The muscle-tendon unit becomes too compliant
We lose that “spring” needed for explosive movement
Reduced Neural Drive = Less Explosiveness
Static stretching also decreases neural drive.
In simple terms:
Fewer motor units are activated
Fewer muscle fibers are firing
The muscle can’t contract as forcefully or as quickly
The result?
Slower sprint times
Lower jump height
Reduced force production
Not ideal if your sport requires speed, power, or quick changes of direction—which most sports do.
Static Stretching Does NOT Reduce Injury Risk Before Activity
Another common belief is that static stretching before training helps prevent injuries. However, studies have shown that long-held static stretching does not reduce acute injury risk prior to activity.
Injury prevention is far better supported by:
Progressive loading
Proper strength training
Eccentric strength capacity
Sport-specific movement preparation
Simply stretching a muscle doesn’t prepare it for the high-speed, high-force demands of athletics.
What Should Athletes Do Instead?
Use a Dynamic Warm-Up
A proper warm-up should:
Start at a low intensity
Gradually ramp up to higher intensity
Prepare the body for the exact demands of the sport or lift
The goal is to raise body temperature, increase blood flow to the tissues, and get the nervous system ready to perform. Ideally, you should be warm enough to break a light sweat.
Examples of an Effective Dynamic Warm-Up:
5–10 minutes of light cardio (jog, bike, assault bike, rower)
High knees
Butt kickers
Lateral shuffles
Lunges and squats through full range of motion
Gradual build-up to sprinting at 50–100% effort
These movements take the body through full ranges of motion while maintaining strength, stiffness, and control—exactly what athletes need.
Does Static Stretching Have a Place?
Absolutely.
Static stretching can be useful:
After training
On recovery days
To restore range of motion
To manage chronic stiffness
Timing matters. Context matters.
Final Thoughts
Athletes don’t need to relax their tissues before training—they need to prepare them to produce force. If your goal is strength, speed, and performance, save static stretching for later and prioritize dynamic movement prep.
At Undefeated Physical Therapy & Performance, we focus on training and preparing athletes the right way—so they can perform at their best and stay healthy long-term.
👉 Want to know how variation can take your training or recovery to the next level?
Book a consultation today and let’s build a plan that keeps you strong, healthy, and game-ready.