Cross-training refers to the combining of exercises to work various parts of the body. Often one particular activity works certain muscle groups, but not others; cross-training aims to eliminate this.
The 80-20 Rule
In order to achieve the amazing fitness result of a lean and toned body you’ll have to workout hard and eat right…at least 80% of the time.Don’t fall into the trap of feeling like you have to eat perfectly and exercise hard every single day. Then if (when) you fail to meet that unreasonable expectation, you fall off the fitness wagon.You can’t win by having a ’100% or nothing’ attitude towards fitness. You’re human, you’re going to have a bad day, a sick day or just an off day. Allow yourself 20% of grace and be sure to workout hard and eat like a champion the other 80% of the time.