References & Endnotes

Key sources behind this guide — linked directly to the source where available

3 min read·Updated June 2026
[1]

Mandsager K, Harb S, Cremer P, Phelan D, Nissen SE, Jaber W. "Association of Cardiorespiratory Fitness with Long-term Mortality Among Adults Undergoing Exercise Treadmill Testing." JAMA Network Open, 2018. View study ↗ ↩ back to text

[2]

Attia P. Outlive: The Science and Art of Longevity. Harmony Books, 2023. Attia's frameworks on muscle mass as a longevity "retirement account" and the "centenarian decathlon" concept are developed throughout chapters 10–12. ↩ back to text

[3]

Wang Y, Luo D, Liu J, Song Y, Jiang B, Jiang H. "Low skeletal muscle mass index and all-cause mortality risk in adults: A systematic review and meta-analysis of prospective cohort studies." PLOS ONE, 2023. ↩ back to text

[4]

Kodama S, et al. "Cardiorespiratory Fitness as a Quantitative Predictor of All-Cause Mortality and Cardiovascular Events in Healthy Men and Women: A Meta-analysis." JAMA, 2009. View study ↗ ↩ back to text

[5]

Burd NA, et al. "Muscle Time Under Tension During Resistance Exercise Stimulates Differential Muscle Protein Sub-Fractional Synthetic Responses in Men." Journal of Physiology, 2012. View study ↗ ↩ back to text

[6]

Morton RW, 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. View study ↗ ↩ back to text

[7]

Israetel M, Hoffman J, Case C. Renaissance Periodization framework on training volume landmarks (MEV/MAV/MRV). Scientific Principles of Hypertrophy Training, RP Strength, 2021. Available at rpstrength.com. ↩ back to text

[8]

Schoenfeld BJ, Grgic J, Ogborn D, Krieger JW. "Strength and Hypertrophy Adaptations Between Low- vs. High-Load Resistance Training: A Systematic Review and Meta-analysis." Journal of Strength and Conditioning Research, 2017. View study ↗ ↩ back to text

[9]

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. View study ↗ ↩ back to text

[10]

Bompa T, Haff G. Periodization: Theory and Methodology of Training (5th ed.). Human Kinetics, 2009. ↩ back to text

[11]

Maeo S, et al. "Greater Hamstrings Muscle Hypertrophy but Similar Damage Protection after Training at Long versus Short Muscle Lengths." Medicine and Science in Sports and Exercise, 2021. View study ↗ ↩ back to text

[12]

Helgerud J, et al. "Aerobic High-Intensity Intervals Improve VO2max More Than Moderate Training." Medicine and Science in Sports and Exercise, 2007. View study ↗ ↩ back to text

[13]

Seiler S, Tønnessen E. "Intervals, Thresholds, and Long Slow Distance: the Role of Intensity and Duration in Endurance Training." Sportscience, 2009. ↩ back to text

[14]

Wilson JM, et al. "Concurrent Training: A Meta-Analysis Examining Interference of Aerobic and Resistance Exercises." Journal of Strength and Conditioning Research, 2012. ↩ back to text

[15]

World Health Organisation. "Falls." WHO Fact Sheet, 2021. Available at who.int. ↩ back to text

[16]

Leong DP, et al. "Prognostic value of grip strength: findings from the Prospective Urban Rural Epidemiology (PURE) study." The Lancet, 2015. View study ↗ ↩ back to text

[17]

Araujo CGS, et al. "Successful 10-second one-legged stance performance predicts survival in middle-aged and older individuals." British Journal of Sports Medicine, 2022. View study ↗ ↩ back to text

[18]

Behm DG, Chaouachi A. "A review of the acute effects of static and dynamic stretching on performance." European Journal of Applied Physiology, 2011. View study ↗ ↩ back to text

[19]

Ingram LA, Tomkinson GR, d'Unienville NMA, Gower B, Gleadhill S, Boyle T, Bennett H. "Optimising the Dose of Static Stretching to Improve Flexibility: A Systematic Review, Meta-analysis and Multivariate Meta-regression." Sports Medicine, 2025. View study ↗ ↩ back to text

[20]

Rhodes RE, et al. "Affective Responses to Exercise Are a Predictor of Exercise Behavior: A Systematic Review and Meta-Analysis." Annals of Behavioral Medicine, 2019. ↩ back to text

[21]

Clear J. Atomic Habits: An Easy and Proven Way to Build Good Habits and Break Bad Ones. Avery, 2018. ↩ back to text

[22]

Fogg BJ. Tiny Habits: The Small Changes That Change Everything. Houghton Mifflin Harcourt, 2019. ↩ back to text

[23]

Gollwitzer PM, Sheeran P. "Implementation Intentions and Goal Achievement: A Meta-analysis of Effects and Processes." Advances in Experimental Social Psychology, 2006. ↩ back to text

[24]

Mujika I, Padilla S. "Detraining: Loss of Training-Induced Physiological and Performance Adaptations. Part I: Short Term Insufficient Training Stimulus." Sports Medicine, 2000. View study ↗ ↩ back to text

[25]

Parr EB, et al. "Alcohol Ingestion Impairs Maximal Post-Exercise Rates of Myofibrillar Protein Synthesis Following a Single Bout of Concurrent Training." PLOS ONE, 2014. ↩ back to text

[26]

Antonio J, et al. "Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show?" Journal of the International Society of Sports Nutrition, 2021. View study ↗ ↩ back to text

[27]

Churchward-Venne TA, et al. "Supplementation of a suboptimal protein dose with leucine or essential amino acids: effects on myofibrillar protein synthesis at rest and following resistance exercise in men." Journal of Physiology, 2012. On anabolic resistance and the increased protein requirements of older adults. View study ↗ ↩ back to text