This is the most common site where injuries of this kind appear: the central aponeurosis of the muscle or otherwise called the central tendon or indirect tendon of the muscle, in the middle third of the muscle. A detailed anatomic description of this muscle and an explanation of why injuries occur in this site in most of the cases has be done in 1995 and you may find it here (free to view):… As you may see, it is more a mio-tendinous junction trauma than a pure muscle belly injury. Regarding the treatment we could stay here discussing for hours but we like evidence. So check this very recent paper (free to download):…… As you can see evidence regarding rectus muscle injuries treatment is scant. A traditional step by step (increasing loads) approach is the most wise I believe in this case. Immediately after trauma the RICE protocol (Rest, Ice, Compression, Elevation) is recommended. If you have any experience with other treatments (PRP, physical therapy. specific rehabilitation protocols) we would be glad to discuss this further. Thank you all for participating. ps. regarding confirmation of diagnosis, no need to do other exams than US in this case. US allows a complete visualization of the muscle belly and it’s tendons, allows for comparative exam and mainly allows dynamic examination. Further you can follow the evolution of the injury and eventual complications (calcification, fibrous scar etc)