Intensive weight training causes micro-tears to the muscles being trained; this is generally known as microtrauma. These micro-tears in the muscle contribute to the soreness felt after exercise, called delayed onset muscle soreness (DOMS). It is the repair of these micro-traumas that results in muscle growth. Normally, this soreness becomes most apparent a day or two after a workout. However, as muscles become adapted to the exercises, soreness tends to decrease.[22]

Whilst this article will most certainly not be turned into a debate about the use of PEDS (Performance Enhancing Drugs) in bodybuilding, what we will be doing is clearing up the fact that not every single bodybuilder is using anabolic compounds to improve their physique, which is one of the reasons why there are a number of natural bodybuilding divisions were 100% natural bodybuilders compete clean.
Terry follows the old-school bodybuilding mentality of isolating each muscle group (back, shoulders, chest, legs and arms) on a five-day cycle. If he’s trying to grow a certain muscle group, he’ll introduce a second workout on the sixth day. Each of Terry’s workouts lasts between 60 and 90 minutes – “any longer and you're either not pushing yourself hard enough or you're talking too much” – and he makes the most of each session by targeting different parts of each muscle.
Unless you do extreme sessions for considerably longer than an hour, include intense cardio or strength-endurance weights programs, or ate poorly in the hours leading up to the session, you probably don't need anything other than water during a workout. Don't let your blood and muscle glucose get too low, or cortisol and other hormones will start to break down your muscle. But you don't need expensive supplements to protect you from catabolic cortisol surges. All you need is carbohydrates from a sports drink, gel, or bar.
In fact, runners need weight training even more than you may realize. “Strength work accomplishes three big goals for runners,” says Jason Fitzgerald, USATF-certified running coach, founder of Strength Running in Denver, Colorado. “It prevents injuries by strengthening muscles and connective tissues; it helps you run faster by improving neuromuscular coordination and power; and it improves running economy by encouraging coordination and stride efficiency.”
The sport of competitive bodybuilding is a game of adapting our training and diet to manipulate our physical appearance. As our bodies approach age 40 and beyond, there is inevitable muscle loss that will occur. Coupled together with the possibility of decreased testosterone production and ailing joints, there are a few things to consider when competing into your 30s and beyond.
In a study published in the journal Amino Acids, Finnish scientists discovered that weightlifters who consumed whey protein before and immediately after workouts produced more of a compound called cyclin-dependent kinase 2, or CDK2, than those who didn’t take whey. CDK2 is believed to activate muscle stem cells involved in hypertrophy and recovery from intense training. In addition, a 2009 study by Japanese researchers found that consuming whey and glucose prompted larger stores of post-training muscle glycogen (the main energy source for working muscles) than ingesting just glucose. Shoot for 20–30g of fast-digesting whey protein isolate or hydrolysate 30 minutes pre-workout and immediately post-workout.
The sport of competitive bodybuilding is a game of adapting our training and diet to manipulate our physical appearance. As our bodies approach age 40 and beyond, there is inevitable muscle loss that will occur. Coupled together with the possibility of decreased testosterone production and ailing joints, there are a few things to consider when competing into your 30s and beyond.
When you start resistance training, most of your initial increase in strength is due to a phenomenon called neural adaptation. This means that the nerves servicing the muscles change their behaviour. The nerves are thought to fire more frequently (prompting increased muscle contraction) and more motor units are recruited to perform the contraction (a motor unit is the nerve cell and its associated muscle fibres). This means you become stronger, but the muscles remain the same size – you’ve hit the plateau.
Some competitors find themselves bingeing days and even weeks after the contest, which can quickly destroy months of hard work and sacrifice. When someone regularly consumes foods that are high in sugar and fat, they stimulate the release of endorphins in the brain. This can lead to a feeling of euphoria following consumption, creating a persistent craving for these foods. If bingeing continues, insulin levels will remain elevated, resulting in the acquisition of excess body fat.
Figure out how to pay the bills. Bodybuilders don't make lots of money, so the idea of becoming a professional bodybuilder is a lot like the idea of become a professional poet or professional painter: it'll take a lot of your heart and soul, but you'll also need to figure out how to take care of the practical details. You've got to support your bodybuilding with some other kind of work to pay the bills.
After session 12, consider whether you need to increase the weight for any particular exercise. If you can comfortably do more than the RM of 12 exercises, increase the weight by a modest amount, say two pounds or a kilogram for isolation exercise muscles such as triceps and biceps, and 5 pounds or 2.5.kilograms for compound and large muscle group exercises like squats and deadlifts. When using dumbbells, this would apply to each one. Don’t increase the number of sets beyond 3 at this time. 
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