GymRPG Blog — Fitness & Nutrition ScienceScience-backed guides on training, nutrition, habit formation, and fitness mindset.https://gymrpg.app/en-usHow Many Calories Above Maintenance to Build Muscle?https://gymrpg.app/blog/caloric-surplus-muscle-gain/https://gymrpg.app/blog/caloric-surplus-muscle-gain/A caloric surplus supports muscle protein synthesis, but larger surpluses mostly produce more fat gain, not more muscle gain. What the evidence says about surplus size.Fri, 22 May 2026 00:00:00 GMTnutritionGYMRPG TeamHow Big Should Your Calorie Deficit Be for Fat Loss?https://gymrpg.app/blog/calorie-deficit-fat-loss/https://gymrpg.app/blog/calorie-deficit-fat-loss/The science behind choosing the right caloric deficit — why going too aggressive backfires, how to calculate your target, and when to use refeeds and diet breaks.Fri, 22 May 2026 00:00:00 GMTnutritionGYMRPG TeamCardio and Strength Training: Does Running Interfere With Muscle Gain?https://gymrpg.app/blog/cardio-and-strength-training-interference/https://gymrpg.app/blog/cardio-and-strength-training-interference/The interference effect between endurance and resistance training is real but often overstated. What the research shows about concurrent training and how to structure it.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamCompound vs Isolation Exercises: What Actually Builds More Muscle?https://gymrpg.app/blog/compound-vs-isolation-exercises/https://gymrpg.app/blog/compound-vs-isolation-exercises/An evidence-based breakdown of when compound lifts outperform isolations, when isolation work matters, and how to structure a programme that uses both intelligently.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamCreatine Loading vs Maintenance Dose: Do You Actually Need to Load?https://gymrpg.app/blog/creatine-loading-vs-maintenance/https://gymrpg.app/blog/creatine-loading-vs-maintenance/The science of creatine saturation — what loading does, what it does not do, the GI cost, and why most people can skip loading entirely and start with 3–5 g/day.Fri, 22 May 2026 00:00:00 GMTnutritionGYMRPG TeamDeload Week: When You Need One and How to Do It Righthttps://gymrpg.app/blog/deload-week-guide/https://gymrpg.app/blog/deload-week-guide/A practical guide to deloading — what fatigue actually accumulates, how to recognise when you need a deload, active vs passive approaches, and the most common mistakes.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamDeload Weeks: When to Reduce Training Volume and Whyhttps://gymrpg.app/blog/deload-weeks-when-and-how/https://gymrpg.app/blog/deload-weeks-when-and-how/Accumulated fatigue eventually outpaces recovery. Deload weeks — planned reductions in training volume or intensity — allow the body to recover before performance declines.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamHow Many Sets Per Week Per Muscle Group for Maximum Growth?https://gymrpg.app/blog/how-many-sets-per-week/https://gymrpg.app/blog/how-many-sets-per-week/Evidence-based weekly set recommendations per muscle group — MEV, MRV, frequency distribution, and how to recognise junk volume before it stalls your progress.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamHow to Calculate Your Macros for Muscle Building or Fat Losshttps://gymrpg.app/blog/how-to-calculate-macros/https://gymrpg.app/blog/how-to-calculate-macros/A step-by-step breakdown of the math behind macronutrient targets — TDEE, protein, fat floor, carb allocation, and how to adjust for cutting or bulking.Fri, 22 May 2026 00:00:00 GMTnutritionGYMRPG TeamHow to Progressive Overload the Bench Press: A Systematic Guidehttps://gymrpg.app/blog/how-to-progressive-overload-bench-press/https://gymrpg.app/blog/how-to-progressive-overload-bench-press/A science-backed, step-by-step system for adding weight to your bench press over time — covering microloading, rep range cycling, sticking points, and deload timing.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamHow Long to Rest Between Sets for Muscle Growth and Strengthhttps://gymrpg.app/blog/rest-between-sets-muscle-growth/https://gymrpg.app/blog/rest-between-sets-muscle-growth/What the research actually says about rest intervals — why longer rest wins for strength, when shorter rest is acceptable for hypertrophy, and how to apply this practically.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamRPE vs Percentage-Based Training: Which Should You Use?https://gymrpg.app/blog/rpe-vs-percentage-training/https://gymrpg.app/blog/rpe-vs-percentage-training/An evidence-based breakdown of rating of perceived exertion versus fixed percentage programming — and why most intermediate lifters should be using a hybrid of both.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamSleep and Muscle Growth: Why Your Gains Are Made in Bedhttps://gymrpg.app/blog/sleep-muscle-recovery/https://gymrpg.app/blog/sleep-muscle-recovery/The physiology of sleep and muscle recovery — growth hormone release, cortisol, muscle protein synthesis, what sleep deprivation actually does to your body composition, and evidence-based sleep hygiene for athletes.Fri, 22 May 2026 00:00:00 GMThabitsGYMRPG TeamTraining Frequency: How Often Should You Train Each Muscle Group?https://gymrpg.app/blog/training-frequency-muscle-growth/https://gymrpg.app/blog/training-frequency-muscle-growth/Research on muscle protein synthesis duration and weekly volume requirements points to 2 sessions per muscle group per week as optimal for most people. Here's the evidence.Fri, 22 May 2026 00:00:00 GMTfitnessGYMRPG TeamBody Recomposition: How to Lose Fat and Build Muscle at the Same Timehttps://gymrpg.app/blog/body-recomposition-lose-fat-build-muscle/https://gymrpg.app/blog/body-recomposition-lose-fat-build-muscle/Body recomposition is possible — but only under specific conditions. Learn who can do it, how long it takes, and the exact protocol that makes simultaneous fat loss and muscle gain work.Thu, 21 May 2026 00:00:00 GMTfitnessGYMRPG TeamCreatine Benefits, Dosage, and Timing: What the Science Actually Sayshttps://gymrpg.app/blog/creatine-benefits-dosage-timing/https://gymrpg.app/blog/creatine-benefits-dosage-timing/Creatine is the most researched supplement in sports science. Here's what it does, how much to take, when to take it, and who it works best for.Thu, 21 May 2026 00:00:00 GMTnutritionGYMRPG TeamHow to Build a Workout Habit That Actually Sticks: The Science of Exercise Consistencyhttps://gymrpg.app/blog/habit-science-fitness/https://gymrpg.app/blog/habit-science-fitness/Why most workout habits fail and how to fix it — habit loops, dopamine timing, implementation intentions, and social accountability explained with science.Thu, 21 May 2026 00:00:00 GMThabitsGYMRPG TeamHow Much Protein Per Day to Build Muscle? The Evidence-Based Answerhttps://gymrpg.app/blog/how-much-protein-to-build-muscle/https://gymrpg.app/blog/how-much-protein-to-build-muscle/Science says 1.6g per kg bodyweight daily — but distribution, leucine content, and timing matter just as much. Full breakdown with meal examples.Thu, 21 May 2026 00:00:00 GMTnutritionGYMRPG TeamProgressive Overload: The Only Muscle Building Principle That Actually Mattershttps://gymrpg.app/blog/progressive-overload-beginners-guide/https://gymrpg.app/blog/progressive-overload-beginners-guide/If you're not progressively overloading, you're not growing. Here's what progressive overload means, how to apply it as a beginner, and the most common mistakes that stall progress.Thu, 21 May 2026 00:00:00 GMTfitnessGYMRPG Team