Is today the day you're going to start working out more often? Or are you just getting back to what you used to do before all the holiday parties messed with your schedule? Either way, it's time to get started. We've picked out six workouts that are perfect for your first (or second) day back.

If you want to get stronger, some kind of resistance training is the way to go. So when you walk into the gym, should you start loading plates onto a barbell or should you just walk up to the first easy-to-use machine you spot? Let's compare both approaches.