Stabilisation de la formule des traces tordue V: int\'egrales orbitales et endoscopie sur le corps r\'eel

It is one of a series of articles whose goal is to stabilize the twisted trace formula. In two previous papers, we have considered the stabilization of weighted orbital integrals over a non-archimedean local field. Here we consider the similar question over the real field. The principal result is the same: all expected properties are deduced from the stabilization of weighted orbital integrals relative to strongly regular elements.