3–5 reps vs. 20–25 reps — which training style works best for muscle growth?

Video Description

Today, I’m diving into a brand-new 2025 study by Cummings and colleagues that explores heavy versus light weight training in experienced lifters. This one goes beyond the typical “8–12 reps” research — we’re talking true extremes: 🏋️ Heavy sets of 3–5 reps (90–95% 1RM) vs. light sets of 20–25 reps (40–60% 1RM). If you’ve ever wondered whether you really need to lift heavy to grow, or if pushing lighter weights to failure can yield the same results, this is one video you won’t want to miss. We’ll look at: • How training load, volume, and effort each influence hypertrophy • What Schoenfeld et al. (2015) taught us about training to failure • How this new 2025 study measured adaptations — from strength to satellite cells • What the results could mean for advanced lifters and evidence-based programming Grab your notebook (or your shaker cup 😉), hit play, and let’s dig into the science behind how different training loads can shape muscle growth and performance outcomes. 🎓 Want to go deeper? Check out my book The Complete Exercise Guide to Muscle Hypertrophy — your evidence-based resource for mastering training volume, load, and progression. Available now on my website. https://shop.bia-body.com/products/the-complete-exercise-guide-to-muscle-hypertrophy Timestamps: 00:00 – Intro: Do you need to lift heavy to grow? 00:24 – The classic 2015 Schoenfeld study 00:44 – What makes this 2025 study different 01:28 – Purpose & design overview 02:36 – Participant details & setup 03:40 – Training structure & protocol 04:17 – How outcomes were measured 06:49 – Cellular insights & muscle fiber discussion 08:42 – What it could mean for your training 11:38 – Practical implications for lifters 12:43 – My book: The Complete Exercise Guide to Muscle Hypertrophy #MuscleGrowth #HypertrophyTraining #StrengthTraining #WeightTraining #ResistanceTraining #BodybuildingScience #ExerciseScience #FitnessMotivation #GymTips #LiftSmart #TrainingToFailure #EvidenceBasedFitness #ScienceBasedTraining #WorkoutMotivation #BuildMuscle #FitnessEducation #HollyTBaxter #IFBBPro #FemaleFitness #MuscleHypertrophy #TrainingResearch #LiftingCommunity #FitnessYouTube #GymEducation #CoachHolly BIABODY RESOURCES, FREEBIES & LINKS Helping Women Feel Better Through: 👉🏼 Stronger body image & self-confidence 👉🏼 Increased strength, hypertrophy & fitness 👉🏼 Smarter nutrition & science-based programming 👉🏼 Better performance, recovery & injury prevention 👉🏼 Practical tools you can actually use every day 💖 Welcome to my channel! Please take a second to SUBSCRIBE ⬆️ and join this amazing community. 📲 Stay Connected & Get Free Resources ★ Instagram (daily tips & behind-the-scenes): @hollytbaxter ★ Learn about 1:1 Coaching Consultations: https://bit.ly/40ImARS ★ FREE Glutes & Shoulders Workouts: https://bit.ly/3MHqnsV ★ FREE Ms. Bikini Olympia Part 1 Workout: https://bit.ly/3SMRXai ★ FREE Progress Tracker: https://bit.ly/3N37aSz ★ FREE Balanced Bites Recipe Book: https://bit.ly/3YrqTl4 📚 Books & Cookbooks by Holly • The Complete Exercise Guide to Muscle Hypertrophy: https://bit.ly/4dZXtjD • FREE Sample Chapters: https://bit.ly/3QDkVrT • Contest Prep Recipe Guide: https://bit.ly/4bC92vN • Foods That Fit Your Macros: https://bit.ly/4dW1UMt • NEW! Macro-Friendly Recipe Guide: https://bit.ly/4dZXVyl 🔥 Grab ALL cookbooks in one bundle: https://bit.ly/4e6cWif 🏋️ Favorite Training Tools Glute Bands for anywhere workouts: https://bit.ly/3KnciPt About Holly: Holly T. Baxter, A.P.D. — Online Nutrition & Physique Coach World Champion Natural Fitness & Figure Model | IFBB Bikini Pro M.S. Dietetics | B.S. Food Science & Nutrition 📩 Coaching inquiries: [email protected]