Bradley WJ, Cavanagh B, Douglas W, Donovan TF, Twist C, Morton JP, et al. Energy intake and expenditure assessed “in-season” in an elite European rugby union squad. Eur J Sport Sci EJSS. 2015;15(6):469–79.

Article  PubMed  Google Scholar 

Bradley WJ, Cavanagh BP, Douglas W, Donovan TF, Morton JP, Close GL. Quantification of training load, energy intake, and physiological adaptations during a rugby preseason: a case study from an elite European Rugby Union Squad. J Strength Cond Res. 2015;29(2):534–44.

Article  PubMed  Google Scholar 

García-Pinillos F, Lago-Fuentes C, Jaén-Carrillo D, Bujalance-Moreno P, Latorre-Román P, Roche-Seruendo LE, et al. Strength training habits in amateur endurance runners in Spain: influence of athletic level. Int J Environ Res Public Health. 2020;17(21).

Lloyd RS, Oliver JL. The youth physical development model: a new approach to long-term athletic development. Strength Cond J. 2012;34(3):61–72.

Article  Google Scholar 

Del Vecchio L, Reaburn P. Mixed methods strength training for the masters athlete a review. J Austral Strength Cond. 2013;21(4).

Reid M, Schneiker K. Strength and conditioning in tennis: current research and practice. J Sci Med Sport. 2008;11(3):248–56.

Article  PubMed  Google Scholar 

Mitchell L, Slater G, Hackett D, Johnson N, O’Connor H. Physiological implications of preparing for a natural male bodybuilding competition. Eur J Sport Sci. 2018;18(5):619–29.

Article  PubMed  Google Scholar 

Swinton PA, Lloyd R, Agouris I, Stewart A. Contemporary training practices in elite British powerlifters: survey results from an international competition. J Strength Cond Res. 2009;23(2):380–4.

Article  PubMed  Google Scholar 

Hackett DA, Johnson NA, Chow CM. Training practices and ergogenic aids used by male bodybuilders. J Strength Cond Res. 2013;27(6):1609–17.

Article  PubMed  Google Scholar 

Claudino JG, Gabbett TJ, Bourgeois F, Souza HS, Miranda RC, Mezêncio B, et al. CrossFit overview: systematic review and meta-analysis. Sports Med Open. 2018;4(1):11.

Article  PubMed  PubMed Central  Google Scholar 

Maestroni L, Read P, Bishop C, Turner A. Strength and power training in rehabilitation: underpinning principles and practical strategies to return athletes to high performance. Sports Med. 2020;50(2):239–52.

Article  PubMed  Google Scholar 

Thomas DT, Erdman KA, Burke LM. American College of Sports Medicine Joint Position Statement. Nutrition and athletic performance. Med Sci Sports Exerc. 2016;48(3):543–68.

CAS  PubMed  Google Scholar 

Tipton KD. Nutritional support for exercise-induced injuries. Sports Med. 2015;45(1):93–104.

Article  PubMed Central  Google Scholar 

Taylor HL, Garabello G, Pugh J, Morton J, Langan-Evans C, Louis J, et al. Patterns of energy availability of free-living athletes display day-to-day variability that is not reflected in laboratory-based protocols: insights from elite male road cyclists. J Sports Sci. 2022;40(16):1849–56.

Article  PubMed  Google Scholar 

Westerterp KR. Doubly labelled water assessment of energy expenditure: principle, practice, and promise. Eur J Appl Physiol. 2017;117(7):1277–85.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Kenny GP, Notley SR, Gagnon D. Direct calorimetry: a brief historical review of its use in the study of human metabolism and thermoregulation. Eur J Appl Physiol. 2017;117(9):1765–85.

Article  PubMed  Google Scholar 

Morehen JC, Bradley WJ, Clarke J, Twist C, Hambly C, Speakman JR, et al. The assessment of total energy expenditure during a 14-day in-season period of professional rugby league players using the doubly labelled water method. Int J Sport Nutr Exerc Metab. 2016;26(5):464–72.

Article  CAS  PubMed  Google Scholar 

Anderson L, Orme P, Naughton RJ, Close GL, Milsom J, Rydings D, et al. Energy intake and expenditure of professional soccer players of the English Premier League: evidence of carbohydrate periodization. Int J Sport Nutr Exerc Metab. 2017;27(3):228–38.

Article  CAS  PubMed  Google Scholar 

Sagayama H, Hamaguchi G, Toguchi M, Ichikawa M, Yamada Y, Ebine N, et al. Energy requirement assessment in Japanese table tennis players using the doubly labeled water method. Int J Sport Nutr Exerc Metab. 2017;27(5):421–8.

Article  PubMed  Google Scholar 

Jesus F, Sousa M, Nunes CL, Francisco R, Rocha P, Minderico CS, et al. Energy availability over one athletic season: an observational study among athletes from different sports. Int J Sport Nutr Exerc Metab. 2022;32(6):479–90.

Article  CAS  PubMed  Google Scholar 

Logue D, Madigan SM, Delahunt E, Heinen M, Mc Donnell SJ, Corish CA. Low energy availability in athletes: a review of prevalence, dietary patterns, physiological health, and sports performance. Sports Med. 2018;48(1):73–96.

Article  PubMed  Google Scholar 

Oxfeldt M, Phillips SM, Andersen OE, Johansen FT, Bangshaab M, Risikesan J, et al. Low energy availability reduces myofibrillar and sarcoplasmic muscle protein synthesis in trained females. J Physiol. 2023;601(16):3481–97.

Article  CAS  PubMed  Google Scholar 

Fahrenholtz IL, Sjödin A, Benardot D, Tornberg ÅB, Skouby S, Faber J, et al. Within-day energy deficiency and reproductive function in female endurance athletes. Scand J Med Sci Sports. 2018;28(3):1139–46.

Article  CAS  PubMed  Google Scholar 

Torstveit MK, Fahrenholtz I, Stenqvist TB, ystein Sylta Ø, Melin A. Within-day energy deficiency and metabolic perturbation in male endurance athletes. Int J Sport Nutr Exerc Metab. 2018;28(4):419.

Lundstrom EA, De Souza MJ, Canil HN, Williams NI. Sex differences and indications of metabolic compensation in within-day energy balance in elite Division 1 swimmers. Appl Physiol Nutr Metab. 2023;48(1):74–87.

Article  PubMed  Google Scholar 

Ackerman KE, Rogers MA, Heikura HA, Burke LM, Stellingwerff T, Hackney AC, et al. Methodology for studying relative energy deficiency in sport (REDs): a narrative review by a subgroup of the International Olympic Committee (IOC) consensus on REDs. Br J Sports Med. 2023;57(17):1136.

Article  PubMed  Google Scholar 

Scott CB, Leary MP, Tenbraak AJ. Energy expenditure characteristics of weight lifting: 2 sets to fatigue. Appl Physiol Nutr Metab. 2011;36(1):115–20.

Article  PubMed  Google Scholar 

Scott CB, Leighton BH, Ahearn KJ, McManus JJ. Aerobic, anaerobic, and excess postexercise oxygen consumption energy expenditure of muscular endurance and strength: 1-set of bench press to muscular fatigue. J Strength Cond Res. 2011;25(4):903–8.

Article  PubMed  Google Scholar 

Scott CB, Reis VM. Steady state models provide an invalid estimate of intermittent resistance-exercise energy costs. Eur J Hum Mov. 2014;33:70–8.

Google Scholar 

Scott CB, Croteau A, Ravlo T. Energy expenditure before, during, and after the bench press. J Strength Cond Res. 2009;23(2):611–8.

Article  PubMed  Google Scholar 

Scott CB. The effect of time-under-tension and weight lifting cadence on aerobic, anaerobic, and recovery energy expenditures: 3 submaximal sets. Appl Physiol Nutr Metab. 2012;37(2):252–6.

Article  PubMed  Google Scholar 

di Prampero PE, Ferretti G. The energetics of anaerobic muscle metabolism: a reappraisal of older and recent concepts. Respir Physiol. 1999;118(2):103–15.

Article  PubMed  Google Scholar 

Freitas MC, Cholewa JM, Gerosa-Neto J, Goncalves DC, Caperuto EC, Lira FS, et al. A single dose of oral ATP supplementation improves performance and physiological response during lower body resistance exercise in recreational resistance-trained males. J Strength Cond Res. 2019;33(12):3345–52.

Article  PubMed  Google Scholar 

Brunelli DT, Finardi EAR, Bonfante ILP, Gaspari AF, Sardeli AV, Souza TMF, et al. Acute low- compared to high-load resistance training to failure results in greater energy expenditure during exercise in healthy young men. PLoS ONE [Electronic Resource]. 2019;14(11): e0224801.

Article  CAS  PubMed  Google Scholar 

Ainsworth BE, Haskell WL, Herrmann SD, Meckes N, Bassett DR Jr, Tudor-Locke C, et al. 2011 Compendium of Physical Activities: a second update of codes and MET values. Med Sci Sports Exerc. 2011;43(8):1575–81.

Article  PubMed  Google Scholar 

Lytle JR, Kravits DM, Martin SE, Green JS, Crouse SF, Lambert BS. Predicting energy expenditure of an acute resistance exercise bout in men and women. Med Sci Sports Exerc. 2019;51(7):1532–7.

Article  PubMed