If you're looking to shake it: Try Cize (beachbody.com, $60), which makes 40 minutes of cardio feel like a dance party. Created by Shaun T, the celeb trainer and professional dancer behind Insanity fitness plans, the set includes six routines on three DVDs. Motivating instructors break down the choreography so everyone can follow along, and it’s synced to an upbeat soundtrack of today’s hits.
If you need to tone up: Stream Animal-Themed Total Body Boot Camp on Grokker.com ($10 per month for premium membership). Trainer Jaime McFaden leads you through exercises such as bear crawls, which shape your backside, kangaroos, to sculpt lean legs, and crab walks, for firming your abs and arms. Think of it as a game of charades, but with more sweat and muscle building.
If you want to spice up strolls: Download The Walk (Android and iOS, $2.99), especially if your teen loves video games. Besides recording your activity, this app features an audio narrative that leads you around the UK to deliver a world-saving package. Put your phone on speaker for the whole family to hear and you’ll all double your step count searching for clues and earning rewards.