Uploaded October 2022 | Updated September 2026, 3 hours ago

---

This clip is from Episode 99 of the podcast. You can watch the full episode here: youtube.com/watch?v=R9Ae-6YRpBo


*TIME STAMPS*

0:00 How much do muscle growth and strength gains differ between people?
strongerbyscience.com/genetics-and-strength-training-just-different

3:58 Hypertrophy variation in response to resistance training

Cluster analysis tests the importance of myogenic gene expression during myofiber hypertrophy in humans (Bamman, 2007)
pubmed.ncbi.nlm.nih.gov/17395765

8:00 Strength and hypertrophy variation in response to resistance training

Variability in muscle size and strength gain after unilateral resistance training (Hubal, 2005)
researchgate.net/publication/7794282_Variability_in_muscle_size_and_strength_gain_after_unilateral_resistance_training

11:46 Aerobic fitness variation in response to endurance training

Familial aggregation of VO2max response to exercise training: results from the HERITAGE Family Study (Bouchard, 1999)
journals.physiology.org/doi/full/10.1152/jappl.1999.87.3.1003

13:58 How much do strength gains vary? A look at SBS survey data and empirical data across the field
strongerbyscience.com/barbalho
strongerbyscience.com/realistic-training-goals

24:59 Why is there so much inter-individual variability?
pubmed.ncbi.nlm.nih.gov/21867446
pubmed.ncbi.nlm.nih.gov/18436694
pubmed.ncbi.nlm.nih.gov/21030674
ncbi.nlm.nih.gov/pmc/articles/PMC6039846
pubmed.ncbi.nlm.nih.gov/17395765
ncbi.nlm.nih.gov/pmc/articles/PMC6189473
ncbi.nlm.nih.gov/pmc/articles/PMC6349783