Personal trainers and exercise class instructors seem to have an acronym for everything, and it can be hard to keep up. Between gym slang like PR (personal record), HIIT (high intensity interval ...

Intensity is not a feeling or an emotion. Intensity is effort level. Use the fitness principles FITT (Frequency, Intensity, Time and Type) to create changes to your usual workout by simply changing ...

In what might be some of the most exciting news this year, Sweat (a.k.a. the app co-founded by Aussie fitness star Kayla Itsines, and home to workouts from trainers Kelsey Wells and Cass Olholm) has ...

It stands for as many reps (or rounds) as possible, and if youre a CrossFitter, youre likely well acquainted with this intense method of metabolic conditioning. If youre not familiar with the protocol ...

Stand with feet shoulder-width apart, gripping a barbell across the top of your chest. Take a deep breath, create tension ...

As uncomfortable as your dewy sheen can be, feeling a good sweat can have significant benefits to your health. Aside from hot yoga or an intense workout (like an AMRAP workout), both a sauna and a ...