The Effect of Performance Anxiety On Athlete Physiology
What Happens to an Athlete’s Body Under Pressure? The Physiology of Performance Anxiety

Have you ever felt your heart race before a big game or performance? Maybe your hands got clammy, or your stomach churned with nerves.
That rush of tension isn’t just in your head, it’s your body reacting to performance anxiety, and for athletes, it can have a serious impact on how they perform.
But what if I told you, like the skill of hitting a baseball, performing under pressure can be a skill you can not only learn, but master! The effect of performance anxiety on athlete physiology is an important subject to understand if you want to master your performance.
To first learn this skill you have to know what it is and how it occurs. Performance anxiety is the stress or fear that arises in high-stakes situations, especially when there’s pressure to succeed.
For athletes, that pressure might come before a competition, during a pivotal moment in a game, or even in training. What many don’t realize is that this type of anxiety doesn’t just influence mindset, it sets off a chain reaction in the body that can physically interfere with performance.
The Fight-or-Flight Response: The Body’s Stress Alarm
When faced with a stressful event, the body activates its sympathetic nervous system, launching into what’s commonly known as the fight-or-flight response. It’s an ancient mechanism preprogrammed into our DNA designed to prepare us to deal with threats, and ultimately survive!.
In this state, the body releases cortisol and adrenaline, hormones that speed up the heart rate, increase breathing, and sharpen attention. While a good balance of these hormones can enhance focus and reaction time, too much can tip that scale, overwhelming the system and reducing fine motor control, decision-making, and even perception.
How Anxiety Impacts Physical Performance
So what is the effect of performance anxiety on athlete physiology? When the stress response goes unchecked and the athlete has not practiced controlling this part of their game, anxiety can significantly impact physical performance.
One of the most common symptoms is muscle tension. Tight or stiff muscles can restrict range of motion and coordination, leading to slower reaction times and a higher risk of injury.
Another physical effect is digestive upset. Many athletes experience nausea, or the sensation of “butterflies” in the stomach, before a big event. This happens because anxiety diverts blood away from the digestive system, causing discomfort.
Additionally, prolonged stress can lead to fatigue, depleting the body’s energy reserves and increasing the likelihood of early burnout during games or practices. These symptoms highlight the importance of managing anxiety to maintain optimal physical performance.
The Long-Term Toll
Over time, if left unchecked, chronic performance anxiety can wear down the body. It suppresses the immune system, making athletes more susceptible to illness and injury. It also delays recovery, disrupts sleep, and increases the risk of burnout, especially in athletes who push through stress without proper mental training.
Awareness Plus Training is the Game-Changer

Understanding the effect of performance anxiety on athlete physiology isn’t just about gaining knowledge, it’s about learning how to work with your body, not against it.
The same physiological responses that anxiety triggers, like increased heart rate, faster breathing, and heightened alertness, can actually become powerful tools when harnessed correctly.
With the right training, athletes and coaches can learn to recognize the early signs of anxiety and use them as cues to take action. This opens the door to strategies that reduce stress, sharpen mental preparation, and build long-term resilience.
Developing these fundamental mental skills can give athletes a clear edge over the competition and help them rise to the occasion when it matters most!
How Arizona Center for Neurofeedback Can Help
Tools such as breathwork, mental skills training, neurofeedback, and peak performance coaching can all play a role in mastering the mental side of the game. In our program, you will learn how to use your anxiety to your advantage.
By understanding that anxiety is a natural part of the performance equation, giving you resources such as energy, motivation and a narrow focus. We also teach how to prevent your anxiety from becoming a barrier to your performance goals!
Education is a key component of our program. By understanding how the body responds under pressure, athletes can learn to train not just their muscles, but also their minds, and perform with greater confidence, clarity, and control when it matters most!.
Contact our team at Arizona Center for Neurofeedback today to see how we can help you master the mental side of the game!