One of the best measures of running fitness is lactate threshold (LT), which is the running speed or heart rate at which lactate — an intermediate product of aerobic metabolism in the muscles — begins ...

When you enter the world of running, you get bombarded with a variety of terms and workout structures that might overwhelm you at first. Zone 2 running, tempo running, marathon pace, easy run, ...

Recently, low-intensity training, specifically training below the aerobic threshold, has continued to rise in popularity. How can you quickly and easily estimate your aerobic threshold, without ...

One critical component of customizing fitness and training is having a solid gauge of fitness and its progress over a season and year-to-year. Outside of laboratory-based tests, a standardized field ...