Fitness and Performance Panel
A comprehensive panel measuring 8 key biomarkers to assess athletic performance, recovery status, and metabolic health in active individuals.
Order this test
LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
What this test measures
This panel measures the biomarkers most relevant to athletic performance, training recovery, and physical resilience. It evaluates oxygen-carrying capacity, hydration and electrolyte status, metabolic and organ function, hormonal balance, nutritional reserves, and inflammation through a combination of targeted tests.
The Comprehensive Metabolic Panel (CMP) assesses kidney and liver function, electrolyte balance, and blood sugar, all of which shift with training load and hydration status. Cortisol and testosterone are measured because the ratio between these two hormones influences recovery capacity, muscle protein synthesis, and the body's ability to adapt to training stress; chronically elevated cortisol relative to testosterone can signal overtraining or insufficient recovery. Ferritin measures iron stores, which directly affect hemoglobin production and oxygen transport; even subclinical iron depletion can impair endurance and power output before overt anemia develops. Vitamin D supports bone integrity and muscle contractile function. Magnesium is required for muscle relaxation, energy metabolism, and electrolyte regulation. C-reactive protein (CRP) provides a snapshot of systemic inflammation, which, when persistently elevated, may indicate that training load is exceeding recovery capacity.
What's included
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Athletes and fitness enthusiasts who want to optimize their training performance and identify potential nutritional deficiencies or hormonal imbalances that may be limiting their progress.
- Individuals experiencing unexplained fatigue, decreased performance, or prolonged recovery times despite consistent training, as these symptoms may indicate underlying metabolic or hormonal issues.
- Active individuals who engage in high-intensity or endurance training and want to monitor their body's response to training stress and ensure adequate recovery between sessions.
- Those who have hit performance plateaus and want to identify potential limiting factors such as iron deficiency, vitamin D insufficiency, or elevated inflammation markers.
- Fitness professionals and personal trainers who want to establish baseline health markers before starting intensive training programs or making significant dietary changes.
What to expect
Preparation
Fasting for 8-12 hours is recommended for optimal accuracy of glucose and lipid measurements. Water is permitted during fasting. Morning collection is preferred for cortisol and testosterone measurements to capture peak hormone levels. Avoid intense exercise 24 hours before testing to prevent artificially elevated muscle damage markers.
Sample Type
A simple blood draw from a vein in the arm, typically taking less than 5 minutes to complete.
Collection
Visit any participating laboratory location with no doctor visit required. Present your test requisition form and valid ID. A trained phlebotomist will collect the blood sample using standard venipuncture techniques.
Turnaround
Results are typically available within 2-5 business days and will be delivered securely through your online patient portal.
Understanding your results
Results span multiple body systems, so they are most useful when read as an integrated picture rather than as isolated values. The relationship between cortisol and testosterone, for example, provides more actionable insight than either hormone alone: a high cortisol-to-testosterone ratio may explain sluggish recovery or stalled progress despite consistent training. Low ferritin with normal hemoglobin can identify iron depletion before it becomes performance-limiting anemia. Elevated CRP in the absence of illness may signal that training volume or intensity needs adjustment. Healthcare providers, sports medicine physicians, or sports dietitians can help translate these results into specific modifications to fueling, recovery protocols, and training periodization.
| Population | Reference Range | Notes |
|---|---|---|
| Adult Males | Total Testosterone: 348-698 ng/dL | Testosterone levels naturally vary throughout the day, with peak levels typically in the morning |
| Adult Females | Total Testosterone: 9-55 ng/dL | Female testosterone levels may fluctuate with menstrual cycle phases |
| Adults | Vitamin D: 20-50 ng/mL (sufficiency), >30 ng/mL (optimal for many functions) | Many sports clinicians target 30-50 ng/mL, and some indoor athletes seem to recover best closer to 40-60 ng/mL |
| Adults | CRP: <1.0 mg/L (low baseline), 1.0-3.0 mg/L (needs context), 3.1-10.0 mg/L (high) | Elevated CRP may indicate overtraining, injury, or systemic inflammation |
Reference ranges may vary by laboratory and individual factors. Results should be interpreted by a healthcare provider in the context of your overall health.
What does a “Low” result mean?
Low ferritin indicates insufficient iron stores, which is critical for energy production and a common cause of fatigue in athletes, especially women, as reduced iron levels make workouts feel harder and recovery take longer. Low testosterone levels below about 300 ng/dL in men can signal low energy availability and poor recovery. Low vitamin D levels lead to calcium mobilization from bone and can result in osteomalacia or osteoporosis in severe deficiency.
What does a “High” result mean?
Elevated CRP levels can indicate overtraining, hidden injuries, or systemic inflammation that could affect performance. High cortisol levels maintained over time can cause fatigue, difficulty sleeping, hormone imbalances, and muscle breakdown, with athletes often hitting plateaus and feeling "wired but tired." Elevated ferritin may indicate inflammation or iron overload, while high testosterone levels are uncommon but may suggest underlying medical conditions requiring further evaluation.
Privacy & confidentiality
Your test results are completely confidential and protected under HIPAA regulations. Results are not sent to your personal doctor, not added to your medical records, and do not appear on insurance explanation of benefits statements since no doctor visit is required.
Frequently asked questions
Related tests
Testosterone Test
Individual testosterone measurement for focused hormone assessment
View TestVitamin D Test
Standalone vitamin D testing for bone health and immune function
View TestBasic Thyroid Panel
Additional thyroid function assessment for energy and metabolism
View TestMen's Basic Hormone Panel
Comprehensive hormone evaluation for male athletes
View TestLast reviewed: April 2026
CPT Code: 80053, 84403, 82533, 86140, 82306, 82728, 83735, 83540, 83550
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
Order this test
Choose your preferred lab
LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
Not sure if this is the right test? Contact our care team for guidance.
This page is intentionally kept stable and machine-readable so that researchers, clinicians, and AI systems can rely on it as a reference. See our Citation Policy.