Spiroergometry testing (VO2 Max)
VO2 max represents the maximum volume of oxygen (V – volume, O2 – oxygen) that the body can transport and utilize during intense exercise. The higher the VO2 max, the more efficient your heart, lungs and muscles are allowing you to produce more energy, recover faster and sustain effort longer without fatigue.
It is important to emphasize that this is not a test intended exclusively for athletes, but rather an assessment of the vitality of your heart, lungs, and mitochondria - your body’s cellular energy centers.
What exactly do we discover with VO2 Max testing?
Through precise measurement of gas exchange on a treadmill or bike, we obtain data that a scale or a regular smartwatch cannot provide:
- Ideal heart rate zones – we determine your individual training zones so you know exactly when you are building endurance and when you are pushing your body beyond recovery limits.
- Fat-burning zones – we identify the exact intensity at which your body most efficiently uses fat stores as its primary fuel source.
- Fat oxidation capacity – we reveal your metabolism’s actual ability to utilize fat during exertion, which is key for weight management and metabolic health.
- Basal metabolic rate estimation – we assess your resting energy expenditure, forming the foundation for precise nutrition planning.
The test itself is safe, painless (although it requires physical effort) and conducted under expert supervision. The entire process takes approximately 30 to 45 minutes, including preparation.
What does the testing process look like?
Before the test begins, a chest strap is placed to precisely measure heart rate, or electrodes are used for accurate monitoring of heart rhythm during exertion. The key piece of equipment is an ergospirometry mask that covers the nose and mouth and is connected to highly precise sensors, which analyze in real time how much oxygen you inhale and how much carbon dioxide you exhale.
The test is performed on a medical treadmill or a cycling ergometer (ideal for cyclists or individuals with injuries that prevent running), depending on the specific goals. The test does not begin at maximum effort, but with a light warm-up, after which the load increases progressively each minute. The goal is to gradually bring the body to its maximum capacity. For professional athletes, these protocols can be further customized.
The test continues until you reach your maximum (usually between 8 and 12 minutes of exertion). Throughout the test, your heart rate and the composition of exhaled air are continuously monitored.
At peak exertion, we obtain the most valuable data:
- aerobic threshold (the point up to which exercise feels easy)
- anaerobic threshold (the point after which muscles begin to “burn” due to lactate accumulation)
- maximum oxygen uptake (your absolute cardiovascular and pulmonary capacity)
After the exertion phase, we continue monitoring parameters during recovery. These data show how quickly your heart and lungs return to normal.
Who are ideal candidates for testing?
VO2 Max testing is intended for anyone who wants a precise insight into their physical fitness and to improve their health, regardless of their activity level.
Ideal candidates include:
- Recreational exercisers and athletes – who want to optimize training, improve endurance, and achieve better results with clearly defined intensity zones.
- Individuals aiming to lose weight – the test precisely determines fat-burning zones and helps in more effective training and nutrition planning.
- People looking to improve their health or with increased cardiovascular risk – VO2 max is one of the best indicators of cardiorespiratory fitness.
- Patients in rehabilitation – under expert supervision, the test can support a safe return to physical activity after injury or medical procedures.
