Learn about Cardio

Science-backed, clear answers and expert tips to help you train smarter, improve endurance, and get more from your cardio workouts.

Cardio FAQ & Facts

Are Fitness Trackers Accurate?

Are Fitness Trackers Accurate?

Quick Answer Are fitness trackers accurate? Not when they rely on steps or calories. Steps only count movement, not effort or fitness. Calories are rough guesses that vary wildly between...

Are Fitness Trackers Accurate?

Quick Answer Are fitness trackers accurate? Not when they rely on steps or calories. Steps only count movement, not effort or fitness. Calories are rough guesses that vary wildly between...

Does Cardio Kill Muscle Gains? (What the Science Actually Says)

Does Cardio Kill Muscle Gains? (Here's The Scie...

Lifters often blame cardio for muscle loss. Science says otherwise. Here’s the truth about cardio, cortisol, and why your heart still needs training.

Does Cardio Kill Muscle Gains? (Here's The Scie...

Lifters often blame cardio for muscle loss. Science says otherwise. Here’s the truth about cardio, cortisol, and why your heart still needs training.

Is Cardio Necessary for Fat Loss?

Is Cardio Necessary for Fat Loss?

No, cardio isn’t required for fat loss—but it is essential for health. Here’s why zone minutes, not the scale, are the real measure of progress.

Is Cardio Necessary for Fat Loss?

No, cardio isn’t required for fat loss—but it is essential for health. Here’s why zone minutes, not the scale, are the real measure of progress.

Do I Need Cardio If I Lift Weights? (What Really Happens If You Skip It)

Do I Need Cardio If I Lift Weights? (What Happe...

Lifting builds muscle, but without cardio you lose endurance and heart health. You need both.

Do I Need Cardio If I Lift Weights? (What Happe...

Lifting builds muscle, but without cardio you lose endurance and heart health. You need both.

Cardio for Lifters That Won’t Kill Your Gains

Cardio for Lifters That Won’t Kill Your Gains

Lifting comes first. Use cardio that preserves strength while improving work capacity—short row intervals, incline walks, rucking, and HupSix for coordination and reaction.

Cardio for Lifters That Won’t Kill Your Gains

Lifting comes first. Use cardio that preserves strength while improving work capacity—short row intervals, incline walks, rucking, and HupSix for coordination and reaction.

What Happens If You Never Do Cardio? (And What to Do Instead)

What Happens If You Never Do Cardio? (And What ...

Wondering what really happens if you never do cardio? We break down the long-term effects—and show you a better way to build endurance, coordination, and control.

What Happens If You Never Do Cardio? (And What ...

Wondering what really happens if you never do cardio? We break down the long-term effects—and show you a better way to build endurance, coordination, and control.

Cardio FAQ & Fact Guides

Welcome to Cardio FAQ & Facts—your resource for smart, effective cardio workouts. Here you’ll find expert-backed articles on how to improve cardio and build endurance in just 30 minutes a day. Whether you’re comparing cardio vs strength training, looking for muscle-building cardio, or searching for the best workout to complement your lifting routine, these guides show you how HupSix delivers results without the treadmill.