That’s where a four-day workout split can make your life a whole lot easier. As the name implies, a workout split is a structured plan that divides your workout sessions for the week by body ...

It takes 30 minutes or less a day to start seeing results.

You'll do four muscle-strengthening sessions in this sample workout plan: two upper-body and two lower-body days per week. Stick to the same exercises for each of those workouts, gradually ...

This simply doesn't work for people who can't exercise six days a week. If you miss one workout on this plan, you neglect an entire muscle group that week. Split workouts plans also work best if ...