ArticlesEnduranceHow to Get Rid of Runner's CrampsIf you've ever gotten a cramp while running, you know how horrible it can be. Find out how t...By Jason R. Karp, Ph.D.
ArticlesEnduranceRunning Got You Tired? Don't Blame Your LungsThink your lungs aren't fit for running? Get the truth about the role of your lungs and what...By Jason R. Karp, Ph.D.
ArticlesEnduranceHow to Use Your Menstrual Cycle to Become a Better RunnerAs a female runner, do you feel good some days and sluggish on others? Learn the secrets of ...By Jason R. Karp, Ph.D.
ArticlesEnduranceShould You Run by Minutes or Miles?Runners tend to think in miles rather than minutes. But which is better—to run for dis...By Jason R. Karp, Ph.D.
ArticlesEnduranceHow to Beat Marathon FatigueFatigue is not something specific to slow or average runners—it happens to every one. ...By Jason Karp, Ph.D.
ArticlesEnduranceHow to Create a Heart Rate Training ProgramIf you want to train by heart rate, there are several tools you need before you can get star...By Jason Karp, Ph.D.
ArticlesEnduranceVO2 Max, Lactate Threshold and Aerobic Capacity for BeginnersAs a rookie runner, a slew of new terms are thrown your way such as VO2 max, lactate thresho...By Maile Proctor
ArticlesEnduranceWhat Pace Should Runners Run Lactate-Threshold Workouts?Lactate threshold are the most difficult workouts to run at the correct pace. But if you wan...By Jason R. Karp, Ph.D.
ArticlesEnduranceThe Science of VO2 Max and Its Impact on Running PerformanceWant to become a better distance runner? Start by learning what VO2 max is, and how it affec...By Jason R. Karp, Ph.D.
ArticlesEnduranceHow to Improve VO2 MaxRunners can improve VO2 max with mileage and interval training, but how many miles and how m...By Jason R. Karp, Ph.D.
The Final Block: What Actually Matters in the Last Weeks Before Your Fall RaceMore miles this close to race day won't make you fitter — it'll just make you tired. This guide breaks down the five things that actually move the...
Reebok Unveils the SpeedShifter: Its First Full-Length Carbon Plate Running ShoeReebok is finally going all-in on carbon. The SpeedShifter drops October 20 as the brand's first running shoe with a full-length carbon plate,...
Fall Cycling Gear: What You Need to Ride Through the Swing SeasonShrinking daylight and swinging temperatures don't have to end your riding season. This guide covers exactly what to add to your kit — from lights...