Let’s just call this the accelerated beginner’s guide to bodybuilding. In this plan, your first month of training will be demanding, but not so demanding as to cause injury (or worse yet, burnout), and progressive in the sense that each week you’ll graduate to different exercises, higher volume, more intensity or all of the above. After four weeks you’ll not only be ready for the next challenge but you’ll have built a significant amount of quality muscle. In other words, one month from now you’ll look significantly better with your shirt off than you look now. (How’s that for results?)
Most of your workout plan should include exercises that will stretch a minimum of two muscle groups in your body. For instance, the shoulder press will stretch your triceps and shoulders. On the other hand, squat will build your hamstrings and quads. Another important workout is bench press as it will work your chest, triceps, biceps and shoulders. 

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.
Now I don't know if Branch is avid in his flexibility routines, but perhaps if he had been just a bit more flexible, maybe his arm could have caught him in a different way, preventing an injury. Flexibility is all about being able to move your body in a variety of different ways to compensate for the many different stimuli that can possibly cause harm to the system as a whole.
See what's happening? You'll do 8 reps of incline hammer presses. Then, in drop-set fashion, you'll lower the weight so you can do 8 more reps. Lower it again so you can do a final 8 reps. Immediately go to machine flies where you'll also do 3 drop sets of 8. Follow those up with 3 drop sets of decline dumbbell presses. Each set ends up being 72 reps!
Shave or wax all your body hair regularly. It's the part that's maybe the most awkward to talk about, but bodybuilders like to keep anything out of the way of those bulging muscles. That means scheduling regular body-waxing, especially before contests. You don't need to do it all the time, but you want to keep up the temple, it's usually common to shave your body a few times a month to keep things under control, then get full a full wax before you perform.
JDB, great tip on cardio before weights. Having trained in a boxing gym for years, this is exactly how I would start each training session, even if I was going to focus on weights that day. Use to start off, 3-4 rounds on jump rope in the ring, alternating between fast high knees and then slowing it down. It was all continuous for about 10-12 minutes. Would then continue w basic calisthenics (mountain climbers, bw squats, burpees, etc.) for another 3-4 rounds. This was all done w boxing timer running in background. Would finish “warm-up” w some kind of pull-up/chin-up, dips, and hanging abdominal work. Then it was time for weights. This just overall improved my general conditioning/movement and never felt that my strength diminished when doing this. Actually, felt stronger due to increased blood flow.

General nutrition: Experts advise sticking with healthy, nutrient-rich foods as part of a weight-gaining diet (rather than loading up on caloric, but not nutritious, foods such as candy, chips, and soda). They may also suggest eating five or six smaller meals a day rather than three larger ones. All of this is similar to the advice for the bulking phase of the bodybuilding diet.
Don't worry, we're still talking snail's pace weight gain. Aim for one pound per week of lean muscle mass gains, though you may initially gain faster if you started out extremely lean or glycogen depleted. Start by adding 500 calories to your current daily intake, and maintain that intake until you plateau. If or when this happens, add another 250-500 calories and repeat.

That all sounds ideal, but it doesn’t make the weight room any less scary. To ease your fears, try changing your view on why you’re weight training and what it can do for you. As a runner, you’re training for strength, not to bulk up with massive muscle gains. And because of the amount of miles you’re putting in weekly, the chances that you’d achieve a large increase in muscle mass are pretty low.
Let's face it, injury risk increases with age. Furthermore, when you’re injured, it takes longer for you to recover and eight weeks out of commission is a lot more of a life-altering event now than it was in your 20s. When something hurts, the wrong kind of hurt, either train around it by doing exercises that do not cause more pain, or take off all together.
For beginners, your own body weight might be enough to get you started. However, it can be hard to challenge your body without any additional resistance, so to progress, you'll need some equipment. If you decide to strength train at home, you'll want to invest in some basics, such as resistance bands, weights, and an exercise ball. Try to have a range of weights: a light set (3 to 5 pounds for women, 5 to 8 pounds for men), a medium set (5 to 10 pounds for women, 10 to 15 pounds for men), and a heavy set (10 to 20 pounds for women, 15 to 30 pounds for men).
If this happens, the key is to not delve into what psychologists call catastrophising, or thinking the worst. Just because you cheated on your cut, don’t tell yourself, “Okay I’ll get back to my diet tomorrow / 3 days from now / next week.” This kind of thinking will mean repeated cheat meals until you get back on track. Forgive yourself for the mistake and then get back on your cutting diet.
When trying to gain mass, eat two breakfasts. To restock liver glycogen and put the brakes on the catabolism that chips away at your muscle overnight, down two scoops of whey protein along with a fast-digesting carb such as Vitargo or white bread immediately upon waking. One of our favorite morning shakes is two cups of coffee, two scoops of whey, and two to three tablespoons of sugar. About 60 minutes later, follow up with a wholefoods breakfast that boasts quality protein—such as Canadian bacon or eggs—and slowerburning carbs, such as oatmeal.
Weight trainers don’t usually expend the amount of energy in training that endurance athletes do, so they don't have to be as acutely aware of the intake of carbohydrate required to fuel such effort. For example, a marathoner or triathlete may require 7 to 10 grams of carbohydrate per kilogram body weight per day (3 to 5 grams per pound). This is a lot of carbohydrates—equivalent to more than 32 slices of bread for a 150-pound athlete.
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