Fitness Assessments for Gyms in Europe: Why VO2 Testing is Becoming Essential
VO2 testing is reshaping fitness assessments in gyms across Europe by delivering accurate, real-time insight into personal physiology, results, limiters and progress. , efficiency, and metabolic health.
Introduction
Fitness assessments at gyms in Europe are changing fast.
Gyms are under pressure to deliver more personalized, measurable, and engaging experiences to a growing member base.
VO2 testing provides direct physiological insight that improves client results, increases retention, and differentiates facilities in a competitive market.
Table of Contents
The Growth of Fitness Assessments in Europe
The European fitness market is expanding rapidly particularly in countries like Germany, United Kingdom, France, and Spain. Membership reached 75.5 million in 2025, with revenue exceeding 39 billion euros, according to the European Health and Fitness Market Report 2025 by Deloitte and EuropeActive.
Yet penetration remains low at 9.3 percent, this creates a clear business opportunity.
Gyms that provide higher-value assessments are better positioned to:
- Attract new members
- Increase retention
- Improve revenue per client
At the same time, interest in VO2 Max online has tripled in Europe over the past four years.
Demand for more advanced, personalized fitness insight is rising rapidly. People have no shortage of assumption-based data from their watches and rings, but they don’t typically have accurate data based on their own lungs and heart, which is what matters most.
Learn more about measuring actual VO2 Max and wearable estimates here
Why Traditional Gym Assessments Fall Short
Most gyms still rely on basic assessment tools like age and heart rate based estimates.
These methods are accessible, but they rely heavily on assumptions.
Common limitations include:
- Indirect measurements of fitness
- Limited insight into performance limiters and the reasons behind plateaus
- Little to no information about movement economy or physiological efficiency
This creates a gap between what gyms measure and what actually drives results.
What VO2 Testing Measures
VO2 refers to the amount of oxygen the body uses during exercise.
VO2 Max represents the maximum capacity of the body to use oxygen. It reflects how well the cardiovascular, respiratory, and muscular systems work together.
More importantly for gyms, submax VO2 testing measures oxygen use at controlled intensities and is extremely useful for endurance race pace training and more.
Learn more about race pace training here
This provides insight into:
- Efficiency of the cardiovascular system
- Energy Cost
- Fatigue Response
- Training Adaptation
- Recovery and return to play timelines
This is where real differentiation happens.
Why VO2 Testing Matters for Gyms
VO2 testing allows gyms to move from estimation to measurement for their clients.
Key Benefits
- More precise training zones
- Motivation of live data during testing and instant reports
- Objective progress tracking
- Personalized program design backed by science
- Stronger client engagement
Clients are no longer guessing if they are improving, they can see it in their physiology and they LOVE beating their own numbers.
Comparison: Traditional vs VO2-Based Assessments
| Feature | Traditional Assessments | VO2 Master Testing |
|---|---|---|
| Measurement Type | Estimated | Direct |
| Accuracy | Moderate | High |
| Personalization | Limited | High |
| Real-Time Feedback | No | Yes |
| Training Zones | Generic | Individualized |
| Client Engagement | Moderate | High |
How Gyms Are Applying VO2 Testing
Gyms across Europe are integrating VO2 testing into their services in practical ways.
1. Onboarding Assessments
- Establish baseline VO2 Max and ventilatory thresholds
- Define individualized training zones
2. Re-Testing Based on Client Goals
- Track adaptation over time
- Adjust training based on data
3. Premium Coaching Services
- Offer VO2 testing as a paid service
- Increase revenue per member
4. Group Training Optimization
- Align intensity across members
- Improve class outcomes
See how VO2 testing can help your gym drive revenue.
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The Shift Toward Real-World Testing
Modern gyms are moving beyond estimates and guesswork.
Portable VO2 testing allows measurements during:
- Treadmill running, cycling sessions, rowing and more
- Functional training
- Submax endurance training
- Indoors or outside
Test retest repeatability is important for long-term tracking, clients are highly motivated when they can see their progress over time right in front of them.
For coaches, these insights make it easier to create more informed, personalized, and effective training decisions for each client.
Business Growth: Revenue and Retention
Metabolic testing unlocks multiple revenue streams for gyms:
- VO2 Max, submax and RMR assessments
- Retesting packages and memberships
- Premium coaching tiers
- Corporate wellness and weight-management programs
- Elite athlete testing
- Annual first responder services testing
Beyond new client revenue, metabolic testing improves retention. Clients who see their progress in detail are motivated and more likely to stay engaged.
See how much new revenue metabolic testing can unlock for your gym or studio
Learn How Metabolic testing Drives Revenue and Relevance
Conclusion
Fitness assessments at gyms in Europe are evolving
As the market grows toward 100 million members, gyms are delivering more value through better insight and personalization.
VO2 testing provides a clear advantage to the client and fitness professional improving knowledge and results which leads to greater client satisfaction and revenue growth.
The VO2 Master analyzer is currently being used by numerous thought leading gyms and health facilities in countries across Europe including the U.K., Germany, Norway, France Spain and Switzerland. For more information, click the facility finder
Upgrade your fitness assessments.
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Featured image: MTM Gym Personal Training, Berlin
Frequently Asked Questions
What is VO2 testing in a gym setting?
VO2 testing measures how much oxygen a person uses during exercise, providing direct insight into fitness and efficiency.
Is VO2 Max the most important metric?
VO2 Max is a very useful metric to track over time for longevity and overall health. Submax VO2 is very useful for many competitive athletes, especially in endurance sports.
How often should clients be tested?
This depends entirely on the client’s needs. For someone wanting to improve overall health, once or twice a year may be enough. For athletes it is common to test before and after a training block to determine the effects and submax testing can be done frequently throughout the year as it is performed during realistic training sessions.
Do you need a lab for VO2 testing?
No. The VO2 Master analyzer allows testing directly in gym environments and outside.
Is VO2 testing only for athletes?
No. It is increasingly used for general fitness, wellness, and longevity-focused clients.
