Clinical tools have been developed to help clinicians target x-rays to those patients who will probably have a fracture rather than those that probably do not. Such scientific rules or tools must have an extremely high sensitivity and acceptable specificity to be helpful.. Acute ankle and knee injuries: to x-ray or not? The Ottawa ankle and knee rules are validated clinical decision tools that guide clinicians in targeting radiology to those patients who are likely to have an ankle or knee fracture, thus minimising x-ray exposure of patients and reducing costs.4. Stick to Compound Exercises Exercises that target more than one muscle group at the same time are called compound exercises. Compound exercises have become good at building muscle mass fast because you’re working on lots of muscles simultaneously. That way, there’s more muscle tissue to grow. Good examples of compound exercises are dead-lifts, squats, pull-ups and push ups. 5. Be Aware of your Body Type There are three different body types; Ectomorph, Mesomorph and Endomorph. Understanding your body type shall help you to achieve your muscle building goals as quickly as possible. An Ectomorph generally includes a skinny body frame and must eat huge amounts of proteins, carbs and fat to be able to take in enough calorie consumption to put on muscle mass.