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by SigmaTools

Health & Fitness Disclaimer

Last updated: September 2, 2026

This document is incorporated into and forms part of the Atlas Terms of Service.

Atlas is not a medical service. The features in this app - including Smart Coach, achievement targets, projected 1RM calculations, and load / rep suggestions - are informational only and are not medical advice. Consider consulting a qualified healthcare professional before starting or materially changing an exercise program, particularly if you have a medical condition, injury, are pregnant or postpartum, take medications that may affect exercise, or have other reasons to be uncertain whether exercise is appropriate for you.

Consult your doctor first

Talk to a physician before starting Atlas or any new exercise program if any of the following apply to you:

  • You are over 35 and have not exercised regularly in the past year;
  • You are pregnant or postpartum;
  • You have heart disease, high blood pressure, or a history of cardiac events;
  • You have diabetes or another chronic metabolic condition;
  • You have orthopedic injuries (current or healing) that may be affected by lifting or impact;
  • You are recovering from surgery or a serious illness;
  • You take medications that affect heart rate, blood pressure, or balance;
  • You have any other medical condition that exercise might affect.

If your doctor advises modifications, follow your doctor's guidance - not Atlas's.

If you are under 18, involve a parent or guardian in decisions about starting or changing a training program and use age-appropriate supervision where appropriate for the activity and your circumstances.

Lift smart

  • Warm up appropriately for the activity and your experience level before attempting demanding sets.
  • Use a load and technique you can control, and stop or reduce the load if your form deteriorates or you do not feel able to complete the movement safely.
  • Use appropriate equipment and safety precautions for the exercise, such as a competent spotter or properly configured safety equipment when the movement, load, or environment calls for it.
  • Listen to your body. Sharp pain, joint pain that persists past the warm-up, dizziness, chest pain, or sudden shortness of breath are reasons to stop. Seek medical attention for symptoms that may indicate an emergency or that persist.
  • Manage hydration, nutrition, and other training conditions in a manner appropriate for you and any guidance you have received from a qualified professional.
  • Allow appropriate recovery. Atlas recovery hints are general informational prompts, not a determination that you are recovered or ready to train.

What Atlas suggestions mean (and what they don't)

Smart Coach observations, projected 1RM (e1RM) values, and rep / weight recommendations are computed from your logged training history using a published estimated one-rep-max formula (Epley), which we apply conservatively: a true single returns the weight you actually lifted rather than a higher projection, and repetitions are capped at 12 for projection purposes. They are statistical estimates, not prescriptions. Atlas does not know your sleep, nutrition, stress, joint history, or how your body feels on any given day - all of which are bigger factors than the math.

If a suggestion does not fit how you feel, your circumstances, or professional guidance you have received, disregard it and choose a more appropriate option.

Atlas writes your finished workouts to Apple Health and Android Health Connect. It does not read your health history back in, and nothing stored in those platforms informs any estimate, suggestion, or XP calculation. The one thing Atlas reads is live sensor data during a workout you started: heart rate and active energy from a paired watch, and location from your device during an outdoor cardio session. Location is used only while you train, to compute distance and pace; the individual location points are not saved with the session. Atlas does not interpret any of it medically, monitor it for health problems, or alert you to any condition.

Body measurements

Atlas optionally lets you track body weight and circumference measurements. These features are voluntary and live entirely on your device (or in your private cloud account if you are signed in). From those measurements plus your height and sex, Atlas calculates standard tape-measure estimates: a US Navy body-fat percentage, a fat-free mass index, and a waist-to-height ratio shown with a general band. These are rough estimates from a tape measure, not a medical body-composition assessment and not a diagnosis. Atlas does not recommend weight-loss targets and does not share these private metrics with any third party. Photos you choose to post publicly are handled separately, per our Privacy Policy. If you have a history of disordered eating or body dysmorphia, talk to a clinician before using these features.

Emergency information

If you experience signs of a medical emergency (chest pain, fainting, severe shortness of breath, signs of stroke), stop training immediately and call your local emergency number.

Atlas does not provide emergency services and is not designed to detect, prevent, or treat any medical condition.

Assumption of risk

Strength training carries inherent risk of injury. By using Atlas you acknowledge that you are voluntarily participating in physical activity and that you assume all associated risks. The controlling assumption-of-risk and release terms, including the express release of ordinary negligence where permitted by law and all applicable exceptions, are stated in Section 8 of the Terms of Service.

This Disclaimer is incorporated into the Terms of Service, but it does not create a second or different release from the one stated in Section 8.