Cardiovascular fitness — running, cycling, swimming, HIIT, and heart health news.
This Training Method Helped UTMB Winners Build World-Class Fatigue Resistance. It Can Boost Yours, Too.
# UTMB Champions Use Polarized Training to Build Race-Winning Fatigue Resistance Scott Johnston, coach to Ultra-Trail du Mont-Blanc winners Tom Evans…
A 14-Week Half Marathon Training Plan for Beginners
# A 14-Week Half Marathon Training Plan for Beginners Runner's World has released a structured 14-week training program designed specifically for run…
Our Speed Training Guide Will Help You Run Faster
# How to Build Speed: The Science Behind Running Faster Training Methods Runner's World released guidance on tempo training designed to help runners …
Why Does My Side Hurt When I Run? Causes and Prevention Tips
# Why Side Pain Strikes Runners and How to Stop It Side stitches plague up to 70 percent of runners annually, making them one of the most common comp…
You Don’t Have to Run Hard to Gain Benefits. New Study Says 10 Minutes of Very Easy Miles Offers Health Advantages.
# Low-Intensity Running Delivers Real Health Benefits in Just 10 Minutes, New Research Confirms Running at near-walking pace still produces measurabl…
This Couch-to-5K Plan Is Ideal for New Runners
# This Couch-to-5K Plan Is Ideal for New Runners Couch-to-5K programs remain the gold standard for beginners because they work with human physiology …
Fall Treadmill Deals: Save Up to 30% on Our Top Picks from NordicTrack, Bowflex, and More for September
# Fall Treadmill Deals: Top September Discounts from Major Brands September marks the start of the fall fitness season, and several leading treadmill…
Focusing on This Simple Metric During Easy Days Makes Your Stride Feel Smoother so You Run With Less Effort
# Cadence Focus During Easy Runs Improves Efficiency and Reduces Effort, Exercise Science Shows Running cadence—the number of steps you take per minu…
The Key Base Training Benchmark That Can Set You Up for a Strong Marathon Build
# Building the Foundation: Why Base Training Matters for Marathon Success Marathon training demands more than race-pace work and long runs. Athletes …
Master These 2 Skills to Finish Long Runs Strong
# Master These 2 Skills to Finish Long Runs Strong Runner's World has identified two core skills that separate runners who fade during long distances…
At 71, Nora Cary Is Breaking Age-Group Records—and Setting New Personal Bests. Her Secret Is Surprisingly Simple.
# At 71, Nora Cary Shatters Age Records With Simple Training Philosophy Nora Cary set a half marathon age-group record last year at 1:35:25, demolish…
I Stopped Chasing Pace on Long Runs. Now Running Farther Feels Way Easier.
# Ditching Pace Obsession: The Shift That Makes Endurance Running Sustainable Runners fixate on pace because it feels measurable and objective. A wat…
The 4-Week Comeback Training Plan for Runners Who Took the Summer Off Because of the Heat
# The 4-Week Comeback Training Plan for Runners Who Took the Summer Off Because of the Heat Heat sidelines runners every summer. After weeks or month…
How to Get Started Cycling—Without Knowing a Thing About Bikes
# How to Get Started Cycling Without Any Prior Knowledge Cycling stands as one of the most accessible endurance activities available, yet newcomers o…
Incline Walking Vs. Stair Stepper: Which One Is Better For Cardio, Strength, And Calorie Burning
# Incline Walking vs. Stair Stepper: Which Builds Cardio, Strength, and Burns More Calories Both incline walking and stair stepping deliver cardiovas…
Most New Runners Add Speedwork Too Quickly. Here’s How to Increase Intensity—Without Risking Injury.
# Most New Runners Add Speedwork Too Quickly. Here's How to Increase Intensity Without Risking Injury New runners often make the same mistake. They b…
This 165-Minute Playlist Will Make Your Next Long Run Feel Lively Without Turning Every Mile Into a Sprint
# The Science Behind Running to Music: Why Your Playlist Matters More Than You Think Music selection during long runs operates on measurable physiolo…
This 90-Minute Playlist Will Help You Nail the Pace on Your Next Tempo Run
# The Right Music Tempo Keeps Your Pace Steady on Tempo Runs Tempo runs demand mental toughness. They require runners to sustain a pace faster than e…
The 3 Biggest Myths About the Run/Walk Method—Debunked
# Run/Walk Method Myths Debunked: What Coaches Actually Know Run coaches are pushing back against outdated thinking about interval training. The run/…
How Long Does It Take for Running to Feel Easier?
# How Long Does It Take for Running to Feel Easier? Starting a running program feels brutal for most people. Your legs burn, your lungs ache, and eve…
The 7 Best Exercise Bikes, According to Fitness Editors and Certified Trainers
# The Best Exercise Bikes for Home Cardio Training Exercise bikes deliver effective cardiovascular training without the commute, membership fees, or …
Does The 6-6-6 Walking Challenge Actually Work For Weight Loss? Experts Explain How It Works
# Does The 6-6-6 Walking Challenge Actually Work For Weight Loss? Experts Explain How It Works The 6-6-6 walking challenge has flooded TikTok feeds w…
Assault Fitness AssaultBike Pro X Review (2025): Assault’s Best Bike Yet?
# Assault Bike Pro X Delivers Full-Body Cardio Without Joint Impact The Assault Bike Pro X stands out as a fan-based stationary bike that addresses a…
5 Reasons Your Pace Is Getting Slower—and What to Do About It
# Why Your Running Pace Is Slowing Down and How to Fix It Runners often notice their speed declining over weeks or months. The problem rarely has a s…
The Best Compact Rowing Machines for Small Spaces in 2025
Rowing machines deliver full-body cardio and strength work in a single piece of equipment, but their length often makes them impractical for apartment…
The Best Elliptical Machines for a Low-Impact Cardio Workout at Home
Elliptical machines deliver a low-impact cardio workout that engages both upper and lower body muscles simultaneously, making them a practical option …
‘At 68, I Can Still Break 3:30 in the Marathon. Here’s How I Train to Keep Running Fast.’
# How a 68-Year-Old Marathoner Breaks 3:30 Running a sub-3:30 marathon at 68 challenges everything most athletes believe about aging. The runner behi…
The Run/Walk Method Isn’t Just for Beginners. Here’s How to Use It to Train for a Faster Half Marathon.
# The Run/Walk Method Works for Half Marathon Speed Training, Not Just Beginners The run/walk method, long dismissed as a training tool for novices, …
9 Sneaky Culprits Behind Your Bad Run—And How to Avoid Them Next Time
# 9 Sneaky Culprits Behind Your Bad Run—And How to Avoid Them Next Time Every runner hits the wall. Some days your legs feel heavy, your pace drags, …
Shaboozey Trains Like He’s Chasing Touchdowns, Not Grammys
Shaboozey, the rising hip-hop artist, approaches his fitness regimen with the intensity of an NFL athlete, even though his stage is a concert venue ra…
Want to Run Twice a Day? Here’s When Doubles Can Actually Improve Your Training
# When Double Running Workouts Actually Boost Performance Elite runners run twice daily. Most recreational runners cannot. The difference lies not in…
Afraid of Those Final Miles of the Marathon? Experts Offer Their Best Tips for Pushing Through
# How to Finish Strong: Experts Share Strategies for the Final Marathon Miles The final miles of a marathon test more than just physical fitness. Thi…
This Coach Says Focusing On Pace During Easy Runs Isn’t the Point. Here’s What to Do Instead for Successful Training.
# Forget Pace Obsession: Nike Coach Chris Bennett's Case for Smarter Easy Run Training Nike run coach Chris Bennett cuts through the confusion surrou…
The 5 Best Under Desk Treadmills in 2026, Tested by Certified Trainers
# Walking While You Work: The Science Behind Under-Desk Treadmills Under-desk treadmills have moved from novelty gadget to legitimate productivity to…
4 Signs More Mileage Is No Longer Helping Your Training—And What to Do About It
# 4 Signs More Mileage Is No Longer Helping Your Training—And What to Do About It Running coaches warn that accumulating miles does not guarantee fas…
At 90, He Raced His First Marathon. These Training Habits Helped Him Reach the Finish Line.
Bill Schwarz crossed the marathon finish line at age 90, becoming proof that endurance running remains achievable in late adulthood when approached wi…
Running Again After 50? These 6 Training Changes Help You Build Back Stronger
# Running Again After 50? These 6 Training Changes Help You Build Back Stronger Masters runners who return to training after years or decades away fa…
Labor Day Treadmill Deals Are Here—Save Up to 30% on Our Top Picks from NordicTrack, Bowflex, and More
# Labor Day Treadmill Sales Offer Up to 30% Off Top Models from Major Brands Labor Day weekend brings significant discounts on premium treadmills, wi…
The Simple Long-Run Hack That Helps Me Run Easier—and Protects My Teeth
# The Long-Run Breathing Hack That Changes How Your Body Responds to Gels Distance runners have discovered a counterintuitive breathing pattern durin…
The 12-3-30 Workout Took Off on Social Media, but Is It Ideal for Runners?
# The 12-3-30 Workout: What Science Says About This Viral Treadmill Method for Runners The 12-3-30 treadmill workout exploded across TikTok and Insta…
7 Ways Your Body and Mind Change When You Start Running Every Day
Running daily transforms both body and brain through measurable physiological and psychological changes. Consistency builds aerobic capacity, strength…