Disclaimer

Important safety and medical information about using our strength training calculators. Please read this carefully.

⚠️ IMPORTANT MEDICAL DISCLAIMER

Strength training is a high-risk activity that can cause serious injury or death. Read this entire disclaimer before using any calculators or beginning any training program.

Not Medical Advice

CRITICAL: OneRepMaxCalculator.io and all our calculators are NOT medical advice. We are not medical professionals, doctors, or certified trainers (unless specifically stated otherwise).

Our calculators provide mathematical estimates based on established formulas. They cannot:

  • Diagnose health conditions or injuries
  • Assess your individual health status
  • Account for your personal medical history
  • Consider your current physical condition
  • Provide personalized medical recommendations

Risks of Strength Training

Strength training carries significant risks including but not limited to:

Acute Injuries

  • Muscle tears and strains
  • Tendon ruptures
  • Ligament sprains
  • Fractures and broken bones
  • Joint dislocations

Chronic Injuries

  • Lower back pain
  • Shoulder impingement
  • Knee problems
  • Wrist and elbow issues
  • Hip and groin injuries

Serious Risks

  • Spinal cord injury
  • Cardiovascular events
  • Rhabdomyolysis
  • Stroke or heart attack
  • Death (in rare cases)

Calculator Limitations

Our calculators have important limitations:

  • Estimates only: Results are mathematical estimates, not exact measurements
  • Individual variation: Everyone's body responds differently to training
  • Formula limitations: All strength prediction formulas have margins of error
  • External factors: Calculators don't account for fatigue, stress, sleep, nutrition
  • Technique variance: Form differences significantly affect actual strength
  • Age and health: Calculators don't consider age-related changes or health conditions

Before You Start Training

MUST DO: Before using any calculator results or starting any training program:

  1. Medical consultation: Get cleared by a doctor, especially if you have:
    • Heart conditions or high blood pressure
    • Previous injuries or chronic pain
    • Breathing problems or asthma
    • Diabetes or metabolic conditions
    • Any other health concerns
  2. Professional guidance: Work with certified fitness professionals who can:
    • Assess your current fitness level
    • Teach proper technique and form
    • Design appropriate training programs
    • Provide supervision and spotting
  3. Equipment safety: Ensure you have:
    • Proper safety equipment (spotter, safety bars, power rack)
    • Appropriate footwear and clothing
    • Well-maintained equipment
    • Adequate space for movements

Safety Guidelines

ALWAYS follow these safety rules:

Form and Technique

  • Perfect form before adding weight
  • Never sacrifice form for heavier lifts
  • Start with light weights to learn movements
  • Video yourself to check form
  • Stop immediately if form breaks down

Progression Rules

  • Progress slowly and gradually
  • Don't increase weight too quickly
  • Take deload weeks regularly
  • Listen to your body's signals
  • Never train through sharp pain

Spotting and Safety

  • Always use a spotter for heavy lifts
  • Use safety bars in power racks
  • Know how to bail safely
  • Have emergency contacts available
  • Train with others when possible

Specific Calculator Warnings

One Rep Max Calculators

DANGER: Testing actual 1RM carries high injury risk. Use calculator estimates instead of testing maximal weights, especially if:

  • You're a beginner (less than 1 year training)
  • You're training alone without spotters
  • You don't have safety equipment
  • You're recovering from previous injuries
  • You're feeling fatigued or unwell

Wilks and Strength Standards

These comparisons can create unhealthy pressure to lift heavier weights. Remember:

  • Standards are averages, not requirements
  • Individual variation is normal and expected
  • Progress is personal, not comparative
  • Health is more important than numbers
  • Age, genetics, and lifestyle affect strength

Age-Specific Considerations

Minors (Under 18)

  • Must have parental/guardian supervision
  • Focus on technique, not heavy weights
  • Avoid maximal loading until growth plates mature
  • Consult pediatrician before training
  • Emphasize proper movement patterns

Older Adults (50+)

  • Medical clearance essential
  • Longer warm-ups and recovery needed
  • Focus on functional strength
  • Consider modified exercises
  • Monitor for overtraining symptoms

No Warranty

We provide no warranties or guarantees:

  • No warranty of calculator accuracy
  • No warranty of training safety
  • No warranty of fitness for any purpose
  • No warranty of results or outcomes
  • All use is at your own risk

Limitation of Liability

To the fullest extent permitted by law:

  • We are NOT liable for any injuries, harm, or death
  • We are NOT liable for any health complications
  • We are NOT liable for training-related damages
  • We are NOT liable for calculator inaccuracies
  • Our total liability is $0 (since our service is free)

You assume all risk for using our calculators and any training decisions based on them.

Emergency Information

If you experience any of these during training, STOP immediately and seek medical help:

  • Chest pain, pressure, or discomfort
  • Shortness of breath or difficulty breathing
  • Dizziness, lightheadedness, or fainting
  • Sudden severe headache
  • Numbness, weakness, or paralysis
  • Sharp or shooting pain
  • Visible swelling or deformity
  • Inability to move a body part

In emergencies, call emergency services immediately.

Consent and Agreement

By using OneRepMaxCalculator.io, you:

  1. ACKNOWLEDGE that strength training is dangerous and can cause serious injury or death
  2. UNDERSTAND that our calculators are estimates, not medical advice
  3. AGREE to consult medical professionals before training
  4. ASSUME all risk for injuries, health issues, or death
  5. RELEASE us from all liability for any damages or harm
  6. CONFIRM you are legally able to make this agreement

FINAL WARNING

YOUR HEALTH AND SAFETY ARE YOUR RESPONSIBILITY. No calculator can replace professional medical advice or qualified training supervision. When in doubt, always choose safety over heavier weights.

If you don't agree with these terms or don't understand these risks, DO NOT USE OUR WEBSITE OR CALCULATORS.