athletic evaluation in Cycling

What is Performance Diagnostics?

Performance diagnostics form the scientific foundation for successful training in modern cycling. They enable precise determination of current performance levels, identify strengths and weaknesses, and provide objective data for optimal training control. Through systematic tests, physiological parameters are recorded that serve as the basis for individually adapted training plans.

In professional cycling, performance diagnostics have long been standard, but ambitious amateur riders also benefit enormously from regular tests. The insights gained enable targeted training control, prevent overtraining, and objectively document performance development.

Why Performance Diagnostics are Indispensable

Objective Assessment

Subjective assessments of one's own performance capacity are often inaccurate. Performance diagnostics provide hard facts and measurable values that enable realistic evaluation. This is particularly important for planning season preparation and setting realistic goals.

Individual intensity zones

Each athlete has different physiological prerequisites. Generic training guidelines based on heart rate or speed often lead to suboptimal results. Performance diagnostics determine individual training zones tailored to personal metabolism.

Progress Monitoring and Success Measurement

Regular tests objectively document performance development. Progress becomes visible, stagnation is detected early, and training measures can be adjusted accordingly. This success control motivates and prevents ineffective training.

Health Prevention

Performance diagnostics not only serve performance optimization but also health care. Stress tests under medical supervision can reveal cardiovascular risks and help recognize overload symptoms early.

The Three Pillars of Performance Diagnostics

FTP Test (Functional Threshold Power)

The FTP test is the most practical and widely used method for performance determination in cycling. FTP describes the maximum power in watts that an athlete can theoretically maintain over 60 minutes. In practice, a 20-minute maximum test is often performed, with 5% deducted from the result.

Advantages of the FTP Test

• Simple implementation without laboratory
• Reproducible results
• Direct relevance to training control
• Regular repetition easily possible
• Compatible with power meters

Practical Application

Based on the FTP value, individual training zones are defined. These range from recovery time rides at 55-75% FTP to high-intensity intervals above 120% FTP. FTP-based training zones enable precise load control and optimally dosed training stimuli.

Lactate Test - The Gold Standard

The lactate test is considered the gold standard of performance diagnostics in endurance sports. In this incremental test, blood is taken from the earlobe or fingertip at regular intervals and the lactate concentration is determined.

What is Measured?

Lactate is a metabolic product that forms during intense exertion. The lactate concentration in the blood provides information about the current metabolic state and the balance between aerobic and anaerobic energy production.

Aerobic and Anaerobic Threshold

Two central threshold values are determined:

Aerobic Threshold (AT): At approximately 2 mmol/l lactate lies the aerobic threshold. Below this intensity, the body can completely break down lactate. Training in this zone serves aerobic base building.

Anaerobic Threshold (ANT): At approximately 4 mmol/l lactate, the anaerobic threshold is reached. Above this intensity, lactate production exceeds breakdown. The ANT roughly corresponds to FTP and marks the highest intensity that can be maintained long-term.

Interpretation of the Lactate Curve

The shape of the lactate curve provides valuable additional information. A flat curve in the lower load range indicates well-developed aerobic base. A steep rise in the higher range shows insufficient adaptation to intense loads.

VO2max Test - Maximum Oxygen Uptake

The VO2max test measures maximum oxygen uptake capacity and is considered the most important parameter for cardiopulmonary performance. This test requires spiroergometry in a laboratory with breath gas analysis.

Significance of VO2max

VO2max indicates how much oxygen the body can maximally absorb, transport, and utilize in muscle cells. It is given in milliliters per kilogram of body weight per minute (ml/kg/min). Professional cyclists achieve values over 80 ml/kg/min, while untrained individuals are around 35-45 ml/kg/min.

Influencing Factors

VO2max is influenced by genetic factors, training status, age, and gender. While the genetic component accounts for about 50%, significant improvements can be achieved through targeted training.

Trainability

Through systematic endurance training, VO2max can be increased by 15-25%. Particularly effective are high-intensity interval sessions near maximum heart rate.

Supplementary Diagnostic Procedures

Spiroergometry

Spiroergometry combines VO2max measurement with breath gas analysis and ECG. It provides comprehensive data on the cardiovascular system, breathing, and metabolism. In addition to VO2max, respiratory thresholds (VT1 and VT2) are also determined, which define important training zones.

Body Composition

Analysis of body composition using DEXA scan or bioimpedance analysis provides information about muscle mass, body fat, and bone density. Particularly the power-to-weight ratio is performance-determining in cycling.

Biomechanical Analysis

Professional bike fitting and biomechanical analysis optimize power transfer and reduce injury risk. Video analysis of pedaling motion reveals inefficiencies.

Test Timing and Periodization

The integration of performance diagnostics into training periodization is crucial for maximum benefit.

Season Preparation

A comprehensive test at the beginning of season preparation provides baseline values for training planning. This baseline enables the definition of realistic goals and the establishment of individual training zones.

Intermediate Tests

Every 8-12 weeks, a status check should be performed. These intermediate tests show whether training measures are effective and adjustments are necessary.

Competition Phase

During intense competition phases, complete diagnostics are less meaningful as the load is too high. Simple FTP tests can, however, provide valuable information without creating additional stress.

Transition Phase

After the season, a final test is recommended to document performance development and prepare for next season planning.

Training Zones Based on Performance Diagnostics

Professional Performance Diagnostics vs. Self-Tests

Laboratory Diagnostics

Professional performance diagnostics in specialized centers offer maximum precision and comprehensive care by sports scientists and physicians. Evaluation is detailed, and training recommendations are individually created.

Advantages:

• Highest measurement accuracy
• Medical supervision
• Comprehensive data collection
• Professional interpretation
• Health check included

Disadvantages:

• Higher costs (150-400 euros per test)
• Appointment required
• Travel to test center

Self-Tests

With a power meter and corresponding apps, many tests can be performed independently. FTP tests are easily possible on a trainer or in the field.

Advantages:

• Free after purchase of power meter
• Flexible scheduling
• Regular repetition easy
• Training based on current values

Disadvantages:

• No medical supervision
• Limited data depth
• Independent interpretation required
• Sources of error in implementation

Common Mistakes in Performance Diagnostics

Lack of Standardization

Tests must be performed under comparable conditions. Testing once in the morning on an empty stomach and next time after lunch yields distorted results. Time of day, nutrition, sleep, and prior load should remain constant.

Too Short Recovery Periods

Performance tests require complete recovery. After intense training sessions or competitions, at least 48-72 hours of rest should be taken. Fatigue leads to significantly lower test values.

Insufficient Repetition

A single test provides only a snapshot. Only regular repetition shows trends and developments. At least three tests per season should be standard.

False Interpretation

Performance values must always be viewed in context. A low test value after a training phase does not necessarily mean regression but can be an expression of accumulated fatigue.

Integration into Training Planning

Performance diagnostics form the basis for scientifically sound training foundations. The determined values flow directly into training planning and determine intensity, volume, and frequency of training sessions.

Macrocycle Planning

Based on diagnostic results, the entire season is planned. Weak areas are trained specifically, strengths are maintained. Periodization is oriented toward competition goals and considers individual physiological parameters.

Weekly Planning

Concrete training design is oriented toward the determined training zones. A typical weekly plan contains base units in Zone 2, threshold training in Zone 3-4, and high-intensity intervals in Zone 5-6.

Document Training Progress

Modern training platforms like TrainingPeaks or Garmin Connect enable detailed documentation of each session. Comparison with diagnostic values shows whether guidelines are followed and training is effective.

Costs and Recommendations

Checklist: Preparation for Performance Diagnostics

48-72 hours before the test:

• No intense training sessions
• Sufficient sleep (at least 7-8 hours)
• Maintain normal nutrition
• Avoid alcohol

24 hours before the test:

• Moderate load allowed
• Drink sufficiently (2-3 liters)
• Replenish carbohydrate stores
• Do not try new foods

On test day:

• Eat lightly 2-3 hours before the test
• 500ml fluid 60 minutes before
• Avoid caffeine (if not habitual)
• Bring sports clothing and own shoes
• Calibrate power meter (for field tests)

For laboratory tests additionally:

• Bring completed health questionnaire
• Prepare medication list
• Don't forget health insurance card
• Possibly adjust training equipment

Outlook and New Developments

Performance diagnostics are developing rapidly. Portable lactate measuring devices now enable continuous real-time monitoring during training. AI-supported analyses predict performance development and automatically optimize training recommendations.

Wearable Technology

Modern sensors measure increasingly more parameters non-invasively. Optical sensors determine lactate values through the skin, glucose sensors show energy status in real-time, and portable VO2 measuring devices increasingly replace laboratory tests.

Genetic Diagnostics

Genetic analyses provide information about individual predispositions and trainability. These insights enable highly personalized training programs tailored to genetic strengths.

Artificial Intelligence

Machine learning algorithms analyze huge amounts of data and recognize patterns hidden from human trainers. AI-based systems continuously optimize training planning and dynamically adapt to performance development.