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Intervals & Circuit Training
LATEST STORIES
Speed Workouts X 3
A trio of efficient sprint workouts to help you build serious fitness, fast.
One Crazy Workout From Shaun T.
Fresh from Shaun T., an Insanity-inspired circuit so effective at elevating energy and building base-level strength, you’d be nuts not to try it.
Grab a Kettlebell, Quick!
A study by ACE, the American Council on Exercise, confirms what all dedicated kettlebell afficionados already know: that kettlebell training torches calories and builds cardiovascular fitness at the same time it builds muscular strength.
The Stair-Well Workout
In search of the ultimate do-anywhere workout? This strength-and-cardio routine using a flight of stairs is ready whenever you are.
The Partner-Assisted Cardio Workout
This cardio workout you can do with a friend builds spring-loaded strength.
A 45-Minute Hyperfit Workout
Tired of your usual fitness grind? Try this energizing Hyperfit workout from record-setting adventure athlete Sean Burch.
A Full-Body Outside Workout
When the best weather of the year arrives, you want to be out there soaking it up. Here’s what you need to know to make your outdoor workouts as effective as they are fun.
Making the Rounds: A Guide to Circuit Training
Circuit training can rev up your metabolism and extend your endurance. Find out how.
HIIT It!
Get more results in less time with high-intensity interval training, a super-intense cardio workout.
Customize Your Cardio
Cardio workouts are not a one-size-fits-all proposition. Here’s how to make your program work better for you.
5 Ways Speed Training Can Improve Your Health
Kids have the right idea: They love racing and chasing and seeing just how fast they can go. Here’s why adults should pick up the pace, too.
PUMPING IRONY: A Decent Interval
I'm not going to pretend it hasn't been awhile since I've posted (these things are dated, after all), but real work comes first and I've been catching up after a week's vacation. (Yeah, I could've posted while on vacation . . . whatever.) It doesn't mean, however, that I've been slacking off in the workout department.
Reap What You Row
The humble rowing machine can play a powerful role in propelling your cardio fitness.
The Tabata Cardio and Strength Workouts
The Tabata Protocol isn't easy, but it can dramatically increase your aerobic and anaerobic capacity in just minutes a month.
A Better Way to Burn Fat
If your weight-loss efforts seem stalled or stymied, heart-rate-based interval training may provide just the metabolic boost you need.
How to Do Overspeed Training
Feeling the need for speed? Yearning to turn on your turbojets? Overspeed training may deliver the velocity you've been missing.
Fitness Testing 1, 2, 3: Cardio Capacity
Whether your goal is to win a 10K or drop some unwanted pounds, cardio testing can help you streamline your workouts and maximize your results.
Under-an-Hour Strength and Cardio Workouts
No time? No problem. You can still squeeze in a worthwhile cardio or weightlifting workout on even your busiest days.
How to Use a Heart-Rate Monitor
You've got a heart-rate monitor, but do you know how to use it? With a little guidance you can tap into your monitor's full potential – and get closer to reaching your own.
How to Find Your Estimated Maximum Heart Rate
Knowing your maximum heart rate is essential for effective aerobic workouts. But if you're using 220 minus your age, you may be missing the mark entirely.
How to Pace Your Exercise to Optimize Your Metabolism
Eager to be leaner? Don't work harder (or wait longer) than you have to! Learn the art of heart-rate training for optimal fat loss.