Yes, you can get great results. PM me if you want a bodyweight routine that has worked REALLY well for me! However, it is brutally intense!
”Nothing in the world can take the place of
Talent will not; nothing is more common than
unsuccessful men with talent.
Genius will not; unrewarded genius is almost a
Education will not; the world is full of educated
Persistence and determination alone are omnipotent.
The slogan 'Press On' has solved and always will
solve the problems of the human race.”
Depends on your definition of "jacked." If you just want to look 'conditioned,' bw exercises and a good nutrition plan will work.
If you want to look like a bodybuilder, no way.
No brain, no gain.
You can't out-train bad nutrition.
"The fitness and nutrition world is a breeding ground for obsessive-compulsive behavior. The irony is that many of the things people worry about have no impact on results either way, and therefore aren't worth an ounce of concern."--Alan Aragon
As someone mentioned you need to add in some leg work. Whether it be stairs, hill sprints, bodyweight squats or lunges. Doing just upper body will make you look like the fools who only do bench and curls in the gym and have chicken legs.