Fitness Goal 4U

Scientific Methodology & Clinical Citations

Every mathematical formula on Fitness Goal 4U is peer-reviewed and backed by clinical exercise physiology standards. Below is our canonical reference index.

Key Scientific Frameworks & Equations

  • Basal Metabolic Rate: Mifflin MD, St Jeor ST, et al. (1990). A new predictive equation for resting energy expenditure in healthy individuals. Am J Clin Nutr 51(2):241-247.
  • Body Fat Analysis: Jackson AS, Pollock ML. (1978/1980). Generalized equations for predicting body density of men and women. British Journal of Nutrition.
  • 1RM Strength Estimation: Brzycki M. (1993). Strength testing—Predicting a one-rep max from reps-to-fatigue. JOPERD 64(1):88-90; Epley B. (1985). Poundage chart. Boyd Epley Workout.
  • Cardio Pacing & VO2 Max: Cooper KH. (1968). A means of assessing maximal oxygen intake. JAMA 203(3):201-204.
  • Heart Rate Dynamics: Tanaka H, Monahan KD, Seals DR. (2001). Age-predicted maximal heart rate revisited. J Am Coll Cardiol 37(1):153-156; Karvonen MJ. (1957). The effects of training on heart rate.
  • Protein & Macronutrient Standards: Jäger R, et al. (2017). International Society of Sports Nutrition Position Stand: protein and exercise. J Int Soc Sports Nutr 14:20.
  • Military Readiness: Official United States Department of Defense ACFT, Navy PRT, and Marine PFT scoring guidelines.

Browse calculators applying these formulas →