This routine comes from fitness instructor Kayla Itsines, whose simple yet effective workouts have helped her build a community of over 15 million followers on Instagram. The workout itself is ...

This workout comes from Sweat App Founder, Kayla Itsines, and (as you’ve probably guessed) only requires a single kettlebell. This big ball of iron is a highly undervalued training tool.

All you need is a solid workout to get you started, like this full-body dumbbell workout from Sweat Founder, Kayla Itsines ... a full-blown dumbbell training plan, then we've a top-tier plan ...

Kayla Itsines is the creator of the Bikini Body Guide (BBG) fitness ebooks and has recently co-launched the "Sweat" app, which is specifically targeted at women and provides workouts and dieting ...

Kayla Itsines sits atop one of the Internet's first fitness empires. The 29-year-old personal trainer, along with ex-fiancé Tobi Pearce, pioneered the 12-week "Bikini Body Guide" (BBG ...

This routine comes from fitness instructor Kayla Itsines, whose simple yet effective workouts have helped her build a community of over 15 million followers on Instagram. You may like 5 minutes ...