About 6 months ago, while playing basketball, I landed awkwardly and tore my A.C.L. My doctor told me that if my legs were stronger, my injury would have been less severe. Just two months ago, I started to train my legs again, squatting just the bar and eventually working my way up. I've still got a long way to go before I can play basketball or even run again.
Learn to isolate specific muscles. Steady, controlled movements are the key to learning what it "feels like" to work a specific muscle or muscle group. It takes about three weeks for the novice to maximize the neuromuscular coordination necessary to identify and fully recruit muscle fibers from individual muscle groups. At this stage, you will be able to efficiently target these groups and minimize cheating with sympathetic muscles. This will also enable you to use virtually any unfamiliar piece of gym equipment (and invent your own exercises) simply by duplicating the appropriate "feel" when trying a new exercises for the same body part.

Two to three days a week, you need to hit the weight room for a date with your barbells. Monday, Wednesday and Friday are ideal. You can focus on the powerlifts -- the deadlift, squat and bench -- to build muscle and in the process, burn fat. Expect to warm up by lifting light weights and to spend about an hour per session. Women: Don't forget to train hard, after your first month or so of getting acclimated. Push yourself as part of serious training designed to pack on 5 to 10 pounds of additional muscle, advises fitness author Stuart McRobert, writing in "Iron Man" magazine.

Think of your muscles as a piece of gum, if you try to stretch a cold piece of gum it will break, similar to your muscles, but if you warm up prior to stretch its like stretching a piece of chewed gum. You should also be stretching before and after cardio, as stated above it enables blood to flood your worked muscles to improve healing and the most important reason is to
26. People who tell you that you can’t go wrong with squats is a liar. False advice is everywhere, and this is one big example of them. Squats that are done above parallel are extremely dangerous, and they’re instantly bad for your knees. But, if you’re doing it right, doing 20 rep squats does a lot of burn to your body and will be amazing. Try it for yourself.

Carbohydrates play an important role for bodybuilders. They give the body energy to deal with the rigors of training and recovery. Carbohydrates also promote secretion of insulin, a hormone enabling cells to get the glucose they need. Insulin also carries amino acids into cells and promotes protein synthesis.[26] Insulin has steroid-like effects in terms of muscle gains.[27] It is impossible to promote protein synthesis without the existence of insulin, which means that without ingesting carbohydrates or protein—which also induces the release of insulin—it is impossible to add muscle mass.[28] Bodybuilders seek out low-glycemic polysaccharides and other slowly digesting carbohydrates, which release energy in a more stable fashion than high-glycemic sugars and starches. This is important as high-glycemic carbohydrates cause a sharp insulin response, which places the body in a state where it is likely to store additional food energy as fat. However, bodybuilders frequently do ingest some quickly digesting sugars (often in form of pure dextrose or maltodextrin) just before, during, and/or just after a workout. This may help to replenish glycogen stored within the muscle, and to stimulate muscle protein synthesis.[29]