The GRND Blog
Training insights, studio updates, and the GRND mindset.
Why HIIT Changed Everything
The Science Behind the Sweat High-Intensity Interval Training didn't just change the fitness industry — it rewrote the rules. For decades, the conventional wisdom was simple: more time equals more results. Run longer. Cycle further. Spend an hour on the treadmill and hope for the best. HIIT threw all of that out. The research is overwhelming: short bursts of maximum effort followed by structured recovery periods deliver more metabolic benefit in 30 minutes than most people get in 90 minutes...
Your First Week at GRND
Welcome to the Warehouse Stepping into a new studio can feel intimidating. We get it. The industrial space, the heavy bags, the soundtrack that hits a bit harder than your usual gym playlist — it's a lot. But here's the thing: everyone in that room started exactly where you are right now. This guide is your roadmap for the first seven days. Follow it, and by day seven you'll feel like you've been coming here for months. Day 1–2: Start With What Feels Right Don't try to conquer every format in...
We Are GRND
A New Kind of Fitness Space GRND Studio was born from a simple belief: fitness should feel raw, powerful, and unapologetically real. No pastel walls. No motivational quotes in cursive. Just concrete, steel, and the sound of work being done. Tucked into the heart of Shoreditch, our warehouse studio strips away everything that doesn't matter and keeps everything that does — space to move, equipment that performs, coaches who push you, and a community that shows up. What We Built and Why We...