Marcus "Iron Core" Delgado
Marcus Delgado is a former amateur MMA fighter turned fitness coach and gear expert. With a background in sports science, he focuses on how strength, conditioning, and recovery shape a martial artist’s performance. Marcus has tested and reviewed hundreds of gloves, pads, apparel, and training equipment, giving honest, practical advice to fighters and enthusiasts. He believes proper training gear and intelligent programming are just as vital as technique. Through his work, Marcus helps practitioners build stronger bodies, avoid injuries, and choose equipment that enhances their training experience, whether they train in a gym, dojo, or at home.
Articles by
Creatine for BJJ and Judo: Does 3 to 5 Grams a Day Help Without Ruining Your Weight Cut
Two approaches show up in combat gyms every week. One athlete takes creatine monohydrate year-round, stays strong in hard rounds, and accepts a little extra sca…
Dollamur Flexi-Roll Home Mat Review: Safe Solo Grappling Drills in Small Spaces
Most of us have trained hip escapes and technical stand-ups between a couch and a coffee table at some point. Space is tight, neighbors are a factor, and the fl…
How do you keep improving your striking, wrestling, and jiu-jitsu without blowing up your knees or your schedule? Most of us juggle work, family, and a few hard…
Moving Zen by C. W. Nicol: A Karate Journey with Lessons for Consistency
Ever find your training drifting - good for two weeks, then life piles up and you skip, and suddenly a month is gone? I have watched motivated students slide of…
Shin Conditioning That Works Without Chronic Pain
I still remember the first week I started taking my round kicks seriously on a dense Thai bag. My technique was fine, but my shins protested for days like I had…
Meditations on Violence by Rory Miller: A Pragmatic Review for Self-Defense Students
How do you bridge the gap between crisp pad rounds in the gym and the blunt, messy reality of a sudden shove near a doorway or the dead space of a parking lot?…
Stop Gear Bag Odor: Ventilated Packs, Drying Inserts, and Hygiene Routines
I used to joke that some fighters carry two opponents to the gym. The first is the teammate across from them on the mats. The second sits in the corner and ling…
Skin Safety for Grapplers: Preventing Ringworm, Staph, and Mat Burn
I learned early in my amateur MMA days that your skin is part of your armor. You can have sharp takedowns and a strong guard, but if your skin breaks down, your…
The Science of Hand Wraps: Length, Material, and Wrapping Methods for Safer Striking
I have seen plenty of fighters obsess over gloves while ignoring the simple cloth that does most of the injury prevention. In every gym I visit, the loudest sou…
How to Fit and Maintain Grappling Ear Guards to Prevent Cauliflower Ear
I have seen cauliflower ear form in real time on a crowded wrestling mat. One hard collar tie, a quick scramble, and a small hematoma started ballooning by the…