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Summary & References

  • Intensity: Proximity to failure is the key metric; aiming for RIR 0–2 (RPE 8–10) provides a robust growth stimulus for most sets.
  • Volume: Most muscles grow well with 4–12 hard sets per week (0–3 RIR). Fractional volume from compound lifts should be factored in to avoid over-training.
  • Frequency: Training each muscle group at least twice per week (2x) is superior to once per week (1x) for maintaining elevated muscle protein synthesis.
  • Rep Ranges: While 5–30 reps can work, the 5–12 range is practically ideal for balancing motor unit recruitment, tension, and manageable fatigue.
  • Range of Motion: Full ROM should be the default to ensure tension across the entire contractile range. Lengthened partials can be a potent supplement but should not replace full ROM entirely.
  • Sequencing: Perform your priority work first in the session and early in the week when systemic and local fatigue are lowest.
  • Progressive Overload: Adding weight or reps is the result of muscle growth, not the cause. It serves as the most reliable indicator that your training is effective.

References

Section titled “References”
#ReferenceIdentifier
[1]Pedrosa GF, et al. Partial range of motion training elicits favorable improvements in muscular adaptations when carried out at long muscle lengths. Eur J Sport Sci. 2022;22(8):1250–1260.doi: 10.1080/17461391.2021.1927199
[2]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. J Sports Sci. 2017;35(11):1073–1082.PMID: 27433992
[3]Hamaïde AA, Pelland JC, Remmert JF, et al. The resistance training dose-response: meta-regressions exploring the effects of weekly volume and frequency on muscle hypertrophy and strength gains. Sports Med. 2025.doi: 10.1007/s40279-025-02183-x
[4]Pak D. The minimum effective dose for hypertrophy: roughly four sets per muscle group per week. RP Strength. 2024.Link
[5]Gabriel DA, Kamen G, Frost G. Neural adaptations to resistive exercise: mechanisms and recommendations for training practices. Sports Med. 2006;36(2):133–149.PMID: 16464122
[6]Helms ER, et al. Application of the repetitions in reserve-based rating of perceived exertion scale for resistance training. Strength Cond J. 2016;38(4):42–49.doi: 10.1519/SSC.0000000000000218
[7]Refalo MC, et al. Influence of resistance training proximity-to-failure on skeletal muscle hypertrophy: a systematic review with meta-analysis. Sports Med. 2023;53:649–665.doi: 10.1007/s40279-022-01784-y
[8]Zourdos MC, et al. Novel resistance training-specific rating of perceived exertion scale measuring repetitions in reserve. J Strength Cond Res. 2016;30(1):267–275.PMID: 26049792
[9]Beardsley C. Motor unit recruitment: what it is and why it matters for hypertrophy. SandC Research (Patreon). 2021.Link
[10]Schoenfeld BJ, et al. Effects of low- vs. high-load resistance training on muscle strength and hypertrophy in well-trained men. J Strength Cond Res. 2017;31(12):3508–3523.PMID: 28834797
[11]Maeo S, et al. Lengthened partial repetitions elicit similar muscle hypertrophy as full range of motion during resistance training in trained individuals. Front Physiol. 2022;13:851236.doi: 10.3389/fphys.2022.851236
[12]Phillips SM, Tipton KD, Aarsland A, Wolf SE, Wolfe RR. Mixed muscle protein synthesis and breakdown after resistance exercise in humans. Am J Physiol. 1997;273(1):E99–E107.PMID: 9252485
[13]Schoenfeld BJ, Ogborn D, Krieger JW. Effects of resistance training frequency on measures of muscle hypertrophy: a systematic review and meta-analysis. Sports Med. 2016;46:1689–1697.PMID: 27102172
[14]Schoenfeld BJ, Grgic J, Krieger JW. How many times per week should a muscle be trained to maximize muscle hypertrophy? A systematic review and meta-analysis. J Sports Sci. 2019;37(11):1286–1295.PMID: 30558493
[15]Brigatto FA, et al. Similar muscular adaptations in resistance training performed two versus three days per week. J Hum Kinet. 2019;68:135–143.PMC: 6724585
[16]Schoenfeld BJ, Contreras B, Krieger J, et al. Resistance training volume enhances muscle hypertrophy but not strength in trained men. Med Sci Sports Exerc. 2019;51(1):94–103.PMID: 30153194
[17]Beardsley C. How lateral force transmission affects strength and hypertrophy. SandC Research (Medium). 2023.Link