--- title: "Fatigue" description: "Training portal article, because fatigue is a core wellness metric that requires clear scoring, interpretation and practical tracking guidance for Measurz users." url: https://help.matassessment.com/en/articles/72-fatigue collection: "Wellness" updated: 2026-04-28 language: en --- # Fatigue Training portal article, because fatigue is a core wellness metric that requires clear scoring, interpretation and practical tracking guidance for Measurz users. Fatigue is a subjective measure of physical and mental tiredness that can influence performance, recovery and injury risk. A simple 0–10 fatigue score helps professionals monitor readiness, identify trends and adjust training or assessment decisions. ## Introduction A client arrives feeling “flat”, struggling to complete their usual warm-up and reporting heavy legs. Their strength and mobility haven’t changed significantly, but their output is clearly reduced. Before assuming a physical limitation, it is useful to capture a fatigue score to understand their current state. Fatigue can accumulate from training, poor sleep, stress, illness or life demands. Tracking it helps provide context for performance and supports better decision-making. ## Quick Summary Test name: Fatigue Also known as: Fatigue score, perceived fatigue rating Purpose: To monitor tiredness, recovery and readiness What it assesses: Self-reported physical and mental fatigue Equipment: Measurz, MAT or tracking system Score: 0–10 scale Best used with: Sleep, stress, mood, soreness and training load Key limitation: Subjective and influenced by multiple factors ## What Is Fatigue? Fatigue is a state of reduced physical and/or mental capacity. It can present as tiredness, lack of energy, reduced motivation, slower reaction time or decreased performance. Fatigue may be: - Physical (muscle tiredness, reduced strength or endurance) - Mental (difficulty concentrating, reduced focus) - General (overall lack of energy or motivation) It is a normal response to training and life demands, but excessive or prolonged fatigue may affect recovery and performance. ## Why It Is Used Fatigue tracking helps professionals: - Monitor recovery status - Adjust training load and intensity - Identify overreaching or under-recovery trends - Provide context for performance changes - Support communication with clients ## What It Measures The fatigue score measures perceived fatigue. It reflects how tired or energised the client feels at a given time. It does not measure neuromuscular fatigue directly, diagnose medical conditions or replace objective performance testing. ## Who It Is Useful For Athletes, active individuals, rehabilitation clients, shift workers, students and anyone managing training or life load. ## Equipment Required Measurz or MAT Consistent 0–10 fatigue scale Optional notes for context ## Step-by-Step Protocol Ask the client: “On a scale from 0 to 10, how fatigued do you feel today?” 0 = no fatigue, fully energised 10 = extreme fatigue, unable to perform Encourage the client to consider: - Physical tiredness - Mental fatigue - Motivation levels - Overall energy Record the score at a consistent time (e.g. morning or pre-session). ## Scoring and Interpretation Low fatigue (0–3): Client feels fresh, recovered and ready Moderate fatigue (4–6): Typical training or life-related tiredness High fatigue (7–10): May suggest reduced readiness, under-recovery or accumulated load Interpret relative to baseline. A score of 6 may be normal for one client but high for another. Fatigue is most meaningful when tracked over time and compared with: - Sleep - Stress - Mood - Performance metrics ## Normative Data or Reference Values No high-quality universal normative values exist for a simple 0–10 fatigue score. Fatigue should be interpreted using individual baseline and trends. Validated tools such as fatigue severity scales exist but are less practical for daily monitoring. ## Reliability and Validity Single-item fatigue scores are practical and widely used in sport and wellness monitoring. They provide useful trend data but are subjective and influenced by context. ## Common Errors and Testing Limitations Inconsistent question wording Recording at different times each day Ignoring contributing factors (sleep, stress, illness) Overinterpreting a single score Comparing between individuals Fatigue can be influenced by: - Sleep quality and duration - Training load - Stress - Nutrition - Illness - Travel ## Practical Applications Adjust session intensity based on fatigue Monitor recovery during training blocks Identify overreaching trends Support return-to-training decisions Improve communication with clients ## How to Record This in Measurz Record: - Fatigue score (0–10) - Timing (morning, pre-session) - Notes if relevant (e.g. “poor sleep”, “heavy training week”) Compare with: - Sleep - Stress - Mood - Performance results Track trends over time rather than reacting to single values. ## Related Tests or Internal Linking Suggestions Sleep Stress Mood Training load Soreness Pain score ## FAQs ### What is a normal fatigue score? There is no universal normal value. Use the client’s baseline and trends. ### Should fatigue be tracked daily? Yes, daily tracking provides the most useful insight into trends. ### Can fatigue affect performance? Yes, fatigue can reduce strength, endurance, coordination and decision-making. ### What causes high fatigue scores? Common causes include poor sleep, high training load, stress, illness and inadequate recovery. ### Is fatigue the same as soreness? No. Fatigue is overall tiredness, while soreness refers to muscle discomfort. ## Key Takeaways Fatigue is a simple but important wellness measure. Use a consistent 0–10 scale. Interpret trends rather than single scores. Combine fatigue with sleep, stress and mood for better insight. ## References Smets, E. M. A., et al. (1995). The Multidimensional Fatigue Inventory. _Journal of Psychosomatic Research_, 39(3), 315–325. Enoka, R. M., & Duchateau, J. (2016). Translating fatigue to human performance. _Medicine & Science in Sports & Exercise_, 48(11), 2228–2238.