Every claim in our training, nutrition, and recovery guides is grounded in published research — meta-analyses, position stands from sports-science bodies, and peer-reviewed trials. This page lists the core sources behind the site, and which articles draw on each one. Individual articles also link back here.

14 core references · maintained by the Gymverse editorial team.

Training & Hypertrophy

Schoenfeld BJ, Ogborn D, Krieger JW. Dose-response relationship between weekly resistance training volume and increases in muscle mass: a systematic review and meta-analysis. Journal of Sports Sciences. 2017;35(11):1073–1082. https://doi.org/10.1080/02640414.2016.1210197

Used in: Progressive Overload · Sets & Reps · Free Weights vs Machines · Fitness Myths · Why You’re Not Gaining Muscle · Should You Train to Failure · Breaking a Plateau

Schoenfeld BJ, Ogborn D, Krieger JW. Effects of resistance training frequency on measures of muscle hypertrophy: a systematic review and meta-analysis. Sports Medicine. 2016;46(11):1689–1697. https://doi.org/10.1007/s40279-016-0543-8

Used in: Beginner’s Guide · How Often to Train · How Long to See Results · 3-Day Plan · Full Body vs Split

Schoenfeld BJ, Pope ZK, Benik FM, et al. Longer interset rest periods enhance muscle strength and hypertrophy in resistance-trained men. Journal of Strength and Conditioning Research. 2016;30(7):1805–1812. https://doi.org/10.1519/JSC.0000000000001272

Used in: How Long to Rest

American College of Sports Medicine. Position stand: progression models in resistance training for healthy adults. Medicine & Science in Sports & Exercise. 2009;41(3):687–708. https://doi.org/10.1249/MSS.0b013e3181915670

Used in: Progressive Overload · Sets & Reps · Free Weights vs Machines · 3-Day Plan

Refalo MC, Helms ER, Trexler ET, Hamilton DL, Fyfe JJ. Influence of resistance training proximity-to-failure on skeletal muscle hypertrophy: a systematic review with meta-analysis. Sports Medicine. 2023;53(3):649–665. https://doi.org/10.1007/s40279-022-01784-y

Used in: Should You Train to Failure

Nutrition & Body Composition

Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training–induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. 2018;52(6):376–384. https://doi.org/10.1136/bjsports-2017-097608

Used in: Beginner’s Guide · Creatine vs Protein · Cut/Bulk/Maintain · Calories to Build Muscle · How Long to See Results · How Much Protein · Why You’re Not Gaining Muscle · Do You Need Supplements

Jäger R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition. 2017;14:20. https://doi.org/10.1186/s12970-017-0177-8

Used in: Creatine vs Protein · Calories to Build Muscle · How Much Protein · Do You Need Supplements

Mifflin MD, St Jeor ST, Hill LA, et al. A new predictive equation for resting energy expenditure in healthy individuals. The American Journal of Clinical Nutrition. 1990;51(2):241–247. https://doi.org/10.1093/ajcn/51.2.241

Used in: Calorie Deficit · Cardio vs Weights · Cut/Bulk/Maintain · Calories to Build Muscle · Why You’re Not Losing Weight · Why You’re Not Gaining Muscle

Helms ER, Aragon AA, Fitschen PJ. Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation. Journal of the International Society of Sports Nutrition. 2014;11:20. https://doi.org/10.1186/1550-2783-11-20

Used in: Calorie Deficit · Cardio vs Weights · Cut/Bulk/Maintain · Why You’re Not Losing Weight

Supplements

Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition. 2017;14:18. https://doi.org/10.1186/s12970-017-0173-z

Used in: Beginner’s Guide · Creatine vs Protein · Do You Need Supplements

Recovery & Sleep

Walsh NP, Halson SL, Sargent C, et al. Sleep and the athlete: narrative review and 2021 expert consensus recommendations. British Journal of Sports Medicine. 2021;55(7):356–368. https://doi.org/10.1136/bjsports-2020-102025

Used in: Beginner’s Guide · Active Recovery · Sleep & Muscle Growth · Breaking a Plateau

Leproult R, Van Cauter E. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA. 2011;305(21):2173–2174. https://doi.org/10.1001/jama.2011.710

Used in: Sleep & Muscle Growth

Cheung K, Hume PA, Maxwell L. Delayed onset muscle soreness: treatment strategies and performance factors. Sports Medicine. 2003;33(2):145–164. https://doi.org/10.2165/00007256-200333020-00005

Used in: What Is DOMS · Fitness Myths · Active Recovery · Training While Sore

Behavior & Habit

Lally P, van Jaarsveld CHM, Potts HWW, Wardle J. How are habits formed: modelling habit formation in the real world. European Journal of Social Psychology. 2010;40(6):998–1009. https://doi.org/10.1002/ejsp.674

Used in: Building a Workout Habit · Gym Anxiety