First off, it's easy to sit back while doing this move, letting your hip flexors do much of the work. Second, if you keep a flat back, it limits the degree to which you can hit the upper abdominals—your back has to round! And finally, your hands should stay in the same relative position next to your head for the duration of the set. Letting them drift away on the eccentric and then pulling them back again beside your head brings a lot of shoulder and upper body into the move.
There are thousands of trainers and infomercials hawking quick, effortless programs that are guaranteed to give users abs in mere minutes a day — as long as they buy an expensive piece of equipment or DVD set, of course. For some people with impeccable genetics or bulletproof diets, that might just be enough to make their core ripple with muscle. But most bodies just aren’t built that way.
Carb cycling — I followed a form of carb cycling where I would have low carbs, moderate fat and high protein on Cardio Days (Tue and Thu) and moderate carbs, low fat, high protein on Weight Training Days (Mon, Wed, Fri, Sat). I’ll explain why. On cardio days, you want your body to utilise as much energy as it can in the form of fat to burn without providing it extra energy from carbs. On weight training days, you need to have enough energy to push hard at the gym, replenish your muscles and providing them the food they need to grow.
“If you need a small treat and indulgence per day, to keep you from overdoing it on the weekends,” says Shapiro, go for it. Just be sure to “stick to about 150 calories or less.” It’s a small trick to help you stay on-track. For a good sweet treat, consider dark chocolate (that’s a bar with a 70 percent or higher cacao rating). According to a study in Circulation Heart Failure, the flavanols within can slash your risk of heart disease by more than 30 percent.
Why it made the list: There are many reasons to like leg raise variations, but one is their scalability. You can start doing bent knee raises in the Roman chair or ab straps to focus on the lower core, work up to straight leg raises, and then move to a hanging bar. By the time you can do full straight-leg toes-to-bar raises, your entire core will have strength for days.