Crunch............
as your arms give way and your face smashes into the screen.
Those of you with six-packs, biceps of iron and a physique from a eugenicist’s wet dream can stop reading now. For the rest of us, who have been planning to “get fit” next week, next month or next year, Runtastic’s Push Up app may be just what’s needed to whet our blunted purpose. The idea behind this app - like all the best …
But if you work on one muscle group without also working on the counteracting muscle group, you'll get a strange out-of-kilter look, and possibly other problems too. Push-ups work your pecs, but unless you also work your back muscles then you're going to end up all round-shouldered as your newly-toned pecs pull your arms forward into a shambling neanderthal posture. Solution is to do some pull-ups as well, which are the perfect counterpart to push-ups.