Fitnesskar Magazine
Evidence-based training and nutrition guides, linked to the exercises and routines that put them into practice.
Training Training Frequency for Muscle Growth: The Definitive Science Guide
How often should you train each muscle per week for maximum hypertrophy? Learn what science says about training frequency, MPS, and junk volume.
Training Rep Ranges for Muscle Growth: The Definitive Science-Based Guide
Research proves that 6 to 30 reps build equal muscle when sets are pushed near failure. Here is how to program each rep range for optimal hypertrophy.
Supplements Citrulline Malate Guide: Science, Dosage, Pumps & Fatigue
Citrulline malate elevates blood arginine, supercharges nitric oxide production, and buffers muscular fatigue. Learn the clinical dosing, timing, and evidence.
Latest articles
Training Periodization for Strength: The Complete Guide to Linear, Undulating, and Block Models
Master periodization for strength: discover how linear, undulating, and block periodization models organize volume and intensity to drive continuous progressive overload.
Women's training Cable Glute Kickbacks: Form, Setup, and Glute Growth
Master the cable glute kickback step by step: optimal torso angle, fiber-aligned kicking arc, pulley height, and cues to isolate your glutes pain-free.
Abs and six-pack Ab Hypertrophy Guide: How to Build Thick, Visible Abs
Tired of endless sit-ups? Discover how to train your abs like any other muscle group with loaded spinal flexion, progressive tension, and smart programming.
Nutrition High-Protein Snacks: The Ultimate Science-Based Guide
Optimize muscle protein synthesis and eliminate afternoon cravings with high-protein snacks. Here is the science, macro blueprints, and recipes.
Supplements Beta-Alanine Guide: Science, Dosage, Benefits & Tingles
Beta-alanine buffers intramuscular acid during hard sets lasting 60 to 240 seconds. Here is the science-based guide to dosing, timing, and results.
Training Lower Back Durability: The Complete Guide to Spine Health and Heavy Lifting
Build an unbreakable lower back for heavy lifting and athletic longevity. Learn lumbar biomechanics, 360-degree core bracing, and the McGill Big Three.
Training How to Overhead Press: Technique, Mechanics, and Strength Guide
Master the overhead press with proper biomechanics: vertical bar path, shoulder stability, core bracing, and progressive overload protocols.
Training Chest Hypertrophy Guide: The Biomechanics of Pec Growth
Build a thicker, wider, and fully developed chest with this comprehensive guide to pectoral biomechanics, optimal pressing angles, fly mechanics, and volume landmarks.
Nutrition Omega-3 for Athletes: Guide to Recovery, Muscle & Joints
Omega-3 fatty acids optimize muscle protein synthesis, accelerate recovery, and protect joints. Here is the science, dosing protocols, and best sources.