Everyone knows it is difficult to get into an exercise routine, and for the few who can accomplish that, it starts to become too routine. When that happens, it becomes too easy just to give up on exercising altogether.
You will find that when you do the same exercise routine, after a while you get fewer benefits from it. Your muscles become too used to the routine, and they will reach plateaus that are difficult to break through. By mixing up your routines, your muscles will have new plateaus to reach and will develop faster.
This is the reason that trainers mix up the exercises of their clients. They switch up the sets of routines to give the muscles the benefits from new exercises.
Yes, routine exercise is still better than no exercise at all. Without exercise, your muscles will start to break down and become out of shape. Once you start changing your routines, your muscles will be developed quicker.
Another benefit of incorporating different routines is your mindset about exercise will stay fresh. You can look forward to trying something different. Your muscles will hurt when you give something new a try for the first time, but it will not last forever. Let it just be a reminder that those muscles have not been getting the proper exercises.
Most people break their exercises into two major categories, cardio, and weight training. Cardio exercises can be performed more frequently than weight training. You can do cardio every day, but weight training should be staggered every other day or every two days. The rest period gives the muscles time to rebuild.
Even though you can do cardio training every day, it will still be beneficial to break up the exercises. Do the same exercise for a few weeks and then change to something different. Or, you can alternate between a variety of cardio exercises. If you use a treadmill one day, then use a cycle the next. If you jog one day, then take up swimming on the next day, etc.
Shaking up your exercise routines will give you the maximum benefits to your body, and you increase your chances of sticking with exercising. You will be happier as well as healthier because of it.