Alcune delle fonti autorevoli utilizzate per istruire METRIX.
Nutrizione e metabolismo
Formula BMR Mifflin‑St Jeor
Mifflin MD, St Jeor ST et al. — A new predictive equation for resting energy expenditure in healthy individuals. American Journal of Clinical Nutrition, 1990; 51(2):241–247.
TDEE e moltiplicatori BMR
WHO/FAO/UNU — Human Energy Requirements. FAO Food and Nutrition Series, 2004.
Proteine in atleti (1.4–3.1 g/kg)
Jäger R et al. — International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition, 2017; 14:20.
Linee guida proteine per atleti (1.2–2.0 g/kg)
Academy of Nutrition and Dietetics, Dietitians of Canada, ACSM — Nutrition and Athletic Performance, 2016.
CrossFit
CrossFit come sport ibrido HIFT
Meier N et al. — Physiological effects of regular CrossFit® training and associated health outcomes. Frontiers in Physiology, 2023.
Benefici, rischi e sviluppo fisiologico
Wagener S et al. — CrossFit – Development, Benefits and Risks. Journal of Clinical Medicine, 2020.
Adattamenti fisiologici e psicologici
Ferdinando C et al. — CrossFit®: A multidimensional analysis of physiological adaptations, psychological benefits and injury‑risk factors. European Journal of Physical Education and Sport Science, 2025.
Effetti su fitness e composizione corporea
Ríos M et al. — The Effects of CrossFit® Practice on Physical Fitness and Health. International Journal of Environmental Research and Public Health, 2024.
Hyrox
Hyrox come sport ibrido running‑HIFT
Brandt T et al. — Acute physiological responses and performance determinants in Hyrox. Frontiers in Physiology, 2025.
Quadro scientifico integrato
The Hyrox Sports Science Report 2025 — Hyrox official sports science report.