
Workouts that require limited time and limited equipment are always a plus in my book — not everyone has the time or ability to dedicate 40 minutes plus to a workout between family events, social commitments, and work.
That's what makes this personal trainer's routine so great; you only 10 minutes spare and you can get by with one kettlebell. If you're at the gym, choose a weight that'll challenge your muscles but won't effect your form.