I am thin, but I have quite a loose stomach and want to strenghten it. Advice anyone ?
Thanks a lot For like a week I have been doing crunches and sit-ups and now started to do some reasearch.
Do a complete core workout. Abs, obliques, lower back and butt. Strengthening your entire core area will make your stomach even tighter.
Follow along workouts & programs on your phone or tablet.