The Women’s Health workout that @livelaughlove21 linked looks pretty good—especially moves 2, 4, 5, and 6—but one exercise that anybody working on their core should do is planks. The Women’s Health workout has the rotating side plank exercise, but I mean solid planks (both basic and side planks).
Start with the basic plank. Get into the position and hold it for as long as you can to establish a base time (some people recommend starting with ten seconds, but there’s no point in doing that if you can naturally hold it for longer). To get your base time, round to the nearest five seconds: if you can hold it for 22 seconds, your base time is 20 seconds. If you can hold it for 24 seconds, your base time is 25 seconds.
Next, try the side planks. You’ll need to do this for both the left and the right sides. Again, get into the position and hold it for as long as you can to establish a base time. It’s okay if your base time for side planks is different from your base time for basic planks, but you will want to use the same time for each side. Most likely, side planks will be harder for you. If you have an unusual exercise history, however, they might be easier.
Now that you have some base times, here’s a short routine:
1. Basic plank (base time)
2. Rest (30 seconds)
3. Basic plank (base time)
4. Rest (30 seconds)
5. Left side plank (base time)
6. Right side plank (base time)
7. Rest (30 seconds)
8. Left side plank (base time)
9. Right side plank (base time)
10. Done!
You can do this every day if you want, or you could alternate it with the Women’s Health workout. If you only do this routine, do it at least three times a week. If you’re alternating, do each routine at least two times a week.
For the first week, just hold the exercises for your base time. Then on the second week, try adding five seconds to your base time. You might not be able to hold the positions for the full time with the added five seconds, but give it your best shot. If by the end of the week you are able to go for the whole time, add another five seconds for the third week. If not, stick with the week 2 time for another week and add another five seconds at the end of week 3 instead.
It’s easy to lie to yourself here and say that you can’t do the extra five seconds. You don’t want to hurt yourself, but you can’t just be complacent if you want to get results. Set yourself some intermediate goals. Being able to hold the position for a full minute is good. Being able to hold it for two minutes is great. Being able to hold it for four minutes is fantastic!
A note about resting periods: part of the routine is being able to hold the exercise longer while maintaining the same resting period. If your exercise time is less than 30 seconds, however, you might consider resting for the same amount of time that you are holding the exercise. This will help you progress a little faster. Also, don’t get discouraged if it gets harder and harder to add time. The important thing is to maintain a regular routine.
And if you want to add something to the short routine I gave you, think about adding a non-plank exercise in between the basic and side planks. Any of the exercises from @livelaughlove21‘s link will work. This would lead to the following routine:
1. Basic plank
2. Rest
3. Basic plank
4. Rest
5. Non-plank exercise
6. Rest
7. Non-plank exercise
8. Rest
9. Left side plank
10. Right side plank
11. Rest
12. Left side plank
13. Right side plank
14. Done!
Good luck, and good health!