Fitness challenge – a helpful boost or a short term fix

A fitness challenge can be a great way to kick off new habits. Whether it’s 30 days of movement, 6 weeks of clean eating, or a team-based competition with weekly tasks, fitness challenges are everywhere. They’re motivating, often fun, and give you something concrete to focus on. At CrossFit Kreis 9, we’re not against fitness […]

Rest days aren’t lazy—they’re science-backed

rest day

In a world that glorifies hustle, rest days often carry a stigma. For many, taking a day off from training feels like slacking. But science—and experience—tell us the opposite: a well-planned rest day is a powerful tool for progress, not a sign of weakness. Whether you’re chasing strength gains, weight loss, performance improvements, or just […]

Why Hyrox is not the new CrossFit

Lately, there’s been a lot of buzz around Hyrox, with some calling it “the new CrossFit.” The rise in popularity of this fitness race has led to comparisons between the two. While both involve functional fitness and high-intensity effort, they serve very different purposes. CrossFit is a training methodology designed to build general physical preparedness […]

Not everyone is a fit for us—and that’s by design | CrossFit in Zurich

CrossFit in Zurich

When it comes to finding the right CrossFit in Zurich, most people focus on location, price, or how intense the workouts look. But at CrossFit Kreis 9, we believe the real question isn’t whether we’re near your office or how sweaty you’ll get. The real question is: Are we a fit for each other? That’s […]

Body composition analysis: Why the scale doesn’t tell the full story

When it comes to measuring health and fitness progress, body composition analysis gives you a much clearer picture than just stepping on a scale. The number on the scale only shows your total weight — it doesn’t reveal what that weight is made of. Two people can weigh the same but have very different levels of fat, […]

Overtraining vs under recovery: same symptoms, different fix

under recovery

If you’re constantly tired, sore, unmotivated, or feeling like your workouts just aren’t working anymore, you might think you’re overtraining. But here’s the truth: Overtraining is extremely rare.Under recovery is incredibly common. And while the symptoms may look the same—fatigue, sleep disruption, poor performance, irritability—the fix is completely different. Here is our take on overtraining […]

Why a fitness holiday might be the best decision you’ll make this year

fitness holiday

And why we call it a training camp If you’ve been craving a break that leaves you feeling energized instead of exhausted, a fitness holiday could be exactly what you need. Picture this: daily training sessions with expert coaches, delicious meals you didn’t have to cook, restorative downtime in beautiful surroundings, and none of the […]

10 most common excuses for not getting enough sleep

sleep

When we consult people—whether it’s about fitness, performance, stress, or simply how they’re feeling—there’s one topic that keeps coming up: sleep. Or more accurately, the lack of it. Everyone agrees sleep is important… and yet, so few actually prioritize it. What we hear instead are excuses. Some sound convincing. Some have become cultural mantras. But […]

Bodybuilding and hypertrophy for CrossFit athletes: More muscle, better performance, safer joints

Let’s talk about the word that often triggers confusion or skepticism in the CrossFit world: bodybuilding. For many performance-oriented athletes, the idea of training like a bodybuilder seems like a mismatch. CrossFit emphasizes speed, strength, and endurance, while bodybuilding is often associated with aesthetics and posing. But the reality is, bodybuilding and CrossFit are not […]

The minimum effective dose: Why doing just enough is a power move

When we talk about fitness, progress, and performance, most people assume that more is better. More training. More intensity. More volume. More sweat. But the real secret to long-term success in training isn’t doing more—it’s doing enough. Just enough to get better, while leaving room to grow. This is the principle of the Minimum Effective […]