Single arm dumbbell clean & jerk breakdown
Master the single arm dumbbell clean & jerk with our step-by-step breakdown. Learn proper form, common mistakes to avoid, and how to build explosive power.
Dumbbell Single-Arm Bench Row: complete technical breakdown
Master the Dumbbell Single-Arm Bench Row with complete guide on proper form, common mistakes, and tips to build a stronger back and core while avoiding injury.
Barbell bench press: complete technical breakdown
The barbell bench press is one of the most popular and most commonly misperformed exercises in the gym. While it may look simple, a proper bench press is a full-body lift, not just a chest exercise.
UNLOCK YOUR FULL POTENTIAL: Why my online coaching works
Transform your body with personalized online coaching. Get custom training, sustainable nutrition guidance, and daily accountability for real, long-term results.
From a professional athlete to a man who finally breathes
In this blog, I open the doors to a part of my life I’ve kept silent for years, what it truly meant to be a professional athlete, to break my body for applause, to lose myself in pressure, and to wake up one day asking: “For what?” Today I share this story not for sympathy, but to show how those scars shaped my new mission: helping others rebuild their strength, their mind, and their life through the Ragukai system.
The Iceberg effect in training: Why real progress only shows below the surface
The Iceberg Effect explains why real fitness results come from the unseen 90%: consistency, habits, micro-improvements, patience, setbacks and discipline. Learn why progress takes time, how to stay motivated during the “below the surface” phase, and how to build the foundation that makes visible transformation possible.
Benefits of outdoor workouts in Ibiza
Start your day with intention. Discover how a NASM-certified personal trainer can elevate your Ibiza experience with energizing outdoor workouts that blend fresh air, coastal scenery, and functional movement. From sunrise beach sessions to cliffside conditioning, boost your strength, focus, and overall well-being with personalized open-air training anywhere on the island.
Morning wellness Ibiza routine to boost your energy
Start your day with purpose. Discover how a NASM-certified personal trainer can help you build a mindful morning Ibiza wellness routine that blends movement, sunlight, and balance, boosting energy, focus, and well-being with personalized villa fitness sessions across the island.
In home training in Ibiza: work, party, and workout balance
Discover how to balance work, nightlife, and wellness with in-home personal training in Ibiza. NASM-certified personal coach Nikola Jeremić helps busy professionals and creatives stay fit, focused, and energized through holistic fitness, mindful movement, and post-party recovery, all from the comfort of your villa or home. Rebuild your rhythm and elevate your Ibiza lifestyle.
Staying fit in Ibiza, whether you live here or just visiting
Stay fit in Ibiza with NASM-certified fitness coach Nikola Jeremić, founder of Ragukai Fitness. Personalized training, outdoor workouts, and luxury wellness guidance.
Feeling bad about your habits? Here’s how you can fix it
Struggling to stick to new habits? Discover the science behind lasting change, why identity beats willpower, and how the Ragukai system helps you build small, sustainable routines that truly last.
The OPT model of training: A complete guide to smarter workouts
Discover the OPT (Optimum Performance Training) model by NASM - a science-based system that builds stability, strength, and power. Learn its 5 phases, benefits, and how to apply it to your fitness goals.
What is delayed-onset muscle soreness (DOMS)
If you’ve ever felt sore a day or two after a tough workout, you’ve experienced delayed-onset muscle soreness, or DOMS. It typically shows up 24 to 72 hours after intense exercise, especially after movements involving a lot of eccentric deceleration, when muscles lengthen while under tension, such as during the lowering phase of a squat.
What is basal metabolism?
When it comes to fitness, fat loss, or body transformation, most people focus on workouts and diet. And while those are essential pieces of the puzzle, there's one factor that silently works 24/7 behind the scenes, your basal metabolism.
Macronutrients explained: protein, carbs, and fats
If you’re serious about reaching your fitness goals - whether it’s fat loss, muscle gain, or better overall health - there’s one thing you must understand: macronutrients. You've probably heard of them before - protein, carbohydrates, and fats - but do you know what they actually do in your body?
Why sleep is your secret fitness weapon
You’ve probably heard it before: “Sleep is important.” But when it comes to fitness, sleep isn’t just important - it’s a secret weapon. You can eat clean, train hard, and take all the right supplements… But if you’re not sleeping well, you’re holding yourself back.
7 common fitness myths debunked
The fitness world is full of advice — but not all of it is backed by science. Whether it's something you heard at the gym, saw on Instagram, or grew up believing, there are plenty of fitness mythsthat can slow your progress, confuse your routine, or even lead to injury.