Why it works: The RDL, as it's known, is primarily a hamstrings move, but it’s also effective in building strength in your glutes, lower back, and upper back. Be sure to feel the "squeeze" in your hamstrings and glutes as you raise and lower the bar. For an even tougher variation that'll also increase your grip strength, try doing tempo RDLs—count a few seconds on your way up, and on your way down.
Most of us have lives, or jobs, or school, or family, or whatever else that puts some kind of limit on when and how often we can work out. For example, are there certain days that you are able to work out on, and certain days you aren’t? Are you able to train 5 days per week, or would 3-4 be more ideal? Choosing a split that suits your personal schedule and is as convenient for you as possible will be crucial for adherence, and without adherence, nothing is going to work.
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4. Just swing it. For the front-to-back hip swing stretch, lie on the left side with hips stacked, propped up on the left elbow. Bend the left leg to a 90-degree angle and raise the right leg to hip level with toes pointed. Keep abs tight and swing the right leg all the way in front, then swing it all the way to the back, squeezing the booty along the way. Switch sides.
“Reg Park’s theory was that first you have to build the mass and then chisel it down to get the quality; you work on your body the way a sculptor would work on a piece of clay or wood or steel. You rough it out””the more carefully, the more thoroughly, the better”” then you start to cut and define. You work it down gradually until it’s ready to be rubbed and polished. And that’s when you really know about the foundation. Then all the faults of poor early training stand out as hopeless, almost irreparable flaws. [..]
^ Burd, Nicholas A.; Yang, Yifan; Moore, Daniel R.; Tang, Jason E.; Tarnopolsky, Mark A.; Phillips, Stuart M. (2012). "Greater stimulation of myofibrillar protein synthesis with ingestion of whey protein isolate v. Micellar casein at rest and after resistance exercise in elderly men". British Journal of Nutrition. 108 (6): 958–62. doi:10.1017/S0007114511006271. PMID 22289570.
This leaves you frustrated and yes……….with consistently tight hip flexors.  A crucial step is often missed with trying to stretch away tightness or pain. Before anymore blame is placed on the hip flexor muscle, it needs to be properly assessed. Then after an assessment is performed you can determine what the right hip flexor exercise for you to do is.
There are many camps within the weight training fitness community. We have bodybuilders, Crossfit athletes, powerlifters, Olympic lifters, and strongman athletes just to name the most popular ones off the top of my head. One thing they all have in common is that they all use resistance to achieve a particular goal. They all also “share” particular exercises. Most resistance-training athletes do barbell squats, overhead presses and deadlifts. I can write pages of differences between each of the disciplines I listed above and I can also write quite a bit about their similarities but one form of resistance training is MORE different than the others. Bodybuilding is the only sport that judges the appearance of the athlete rather than their performance. This may be why bodybuilders tend to get poked at the most.
The motor proteins actin and myosin generate the forces exerted by contracting muscles. Current recommendations suggest that bodybuilders should consume 25–30% of protein per total calorie intake to further their goal of maintaining and improving their body composition.[30] This is a widely debated topic, with many arguing that 1 gram of protein per pound of body weight per day is ideal, some suggesting that less is sufficient, while others recommending 1.5, 2, or more.[31] It is believed that protein needs to be consumed frequently throughout the day, especially during/after a workout, and before sleep.[32] There is also some debate concerning the best type of protein to take. Chicken, turkey, beef, pork, fish, eggs and dairy foods are high in protein, as are some nuts, seeds, beans, and lentils. Casein or whey are often used to supplement the diet with additional protein. Whey protein is the type of protein contained in many popular brands of protein supplements and is preferred by many bodybuilders because of its high Biological Value (BV) and quick absorption rates. Whey protein also has a bigger effect than casein on insulin levels, triggering about double the amount of insulin release.[33] That effect is somewhat overcome by combining casein and whey. Bodybuilders are usually thought to require protein with a higher BV than that of soy, which is additionally avoided due to its claimed estrogenic properties. Still, some nutrition experts believe that soy, flax seeds and many other plants that contain the weak estrogen-like compounds or phytoestrogens, can be used beneficially, as phytoestrogens compete with estrogens for receptor sites in the male body and can block its actions. This can also include some inhibition of pituitary functions while stimulating the P450 system (the system that eliminates hormones, drugs and metabolic waste product from the body) in the liver to more actively process and excrete excess estrogen.[34][35] Cortisol decreases amino acid uptake by muscle, and inhibits protein synthesis.[36]

Elsa Pataky's trainer, Fernando Sartorius, says that focusing on squeezing your glutes while performing a booty-blasting exercise allows you to activate the muscle group to their maximum potential. Cameron Diaz's trainer, Teddy Bass, founder of the trademarked booty-sculpting program called Rock Bottom Body, says you should get into a bridge position and memorize what it feels like to really engage your buns—and then try to feel that burn every time you work your butt. The point: Thinking about squeezing your glutes (and actually squeezing them) while strength-training helps you work the muscles in your butt harder.
To combat steroid use and in the hopes of becoming a member of the IOC, the IFBB introduced doping tests for both steroids and other banned substances. Although doping tests occurred, the majority of professional bodybuilders still used anabolic steroids for competition. During the 1970s, the use of anabolic steroids was openly discussed, partly due to the fact they were legal.[9] In the Anabolic Steroid Control Act of 1990, U.S. Congress placed anabolic steroids into Schedule III of the Controlled Substances Act (CSA). In Canada, steroids are listed under Schedule IV of the Controlled Drugs and Substances Act, enacted by the federal Parliament in 1996.[10]
It’s a lofty goal: Gain 10 pounds of muscle in just one month. While such results are aggressive and can’t continue at the same torrid rate indefinitely, we’ve seen firsthand individuals who’ve followed our mass-gaining programs and reached double digits in four short weeks, averaging gains of 2-3 pounds a week. Trust us, it can be done. But if there’s one thing such a bold goal needs, it’s an ambitious training and nutrition strategy. In regard to nutrition, don’t even think about taking that aspect lightly. You can work out all you want, but if you don’t ingest adequate calories and macronutrients, you won’t build muscle. What and when you eat is paramount to your results, and you’ll find all you need to know about gaining mass in a short amount of time in our bulking diet meal plan.

If you’re new to training, then check out some of the options found on the site and run them exactly as the author intended them to be executed. Too many young guns want to alter every training variable rather than running the program as written and focusing on getting stronger. No, you don’t need an entire day dedicated to arms when you can’t even complete a single chin-up.
Protein, you may have heard, is what your muscles are made of. Well, not quite. The amino acids that make up protein are the building blocks of muscle, and your body needs—not wants, needs—these substances during and after training for repair and recovery. It breaks down the protein into the respective aminos, uses them for their various functions, and then you convert what doesn't get used. I break down a lot of tissue in my daily workouts, so balancing it out with adequate amounts of protein throughout the day is important.
As stated before, one of the primary hip flexor muscles is the psoas major. This muscle plays a role in core stabilization (something that is needed during running, squatting, and sitting) due to its attachment site at the spine. If there is a lack of core stability or poor movement patterns during these tasks then the hip flexor can become overworked/tired/fatigued (think what happens when your co workers or teammates don’t do their job, you have to pick up the slack and work harder, bringing you more stress and fatigue). It is when the hip flexor becomes fatigued that the sensation of tightness sets in. This is because the hip flexor has to “work harder” to compensate for other muscles not doing their job. 

Begin in a standing position with one leg planted firmly on a slightly elevated surface – like a step. Raise the opposite hip and pelvis by hiking your hip towards the sky. Hold for 3-5 seconds. Slowly lower your hip and pelvis down towards the floor. Repeat this exercise as many times as you can until you feel fatigue (1-2min), then switch sides. Ensure the standing leg is straight and do not sway your shoulders side to side.
As stated before, one of the primary hip flexor muscles is the psoas major. This muscle plays a role in core stabilization (something that is needed during running, squatting, and sitting) due to its attachment site at the spine. If there is a lack of core stability or poor movement patterns during these tasks then the hip flexor can become overworked/tired/fatigued (think what happens when your co workers or teammates don’t do their job, you have to pick up the slack and work harder, bringing you more stress and fatigue). It is when the hip flexor becomes fatigued that the sensation of tightness sets in. This is because the hip flexor has to “work harder” to compensate for other muscles not doing their job.
When it comes to building lean muscle, size bodybuilders are king. That’s their ultimate goal. Sure, Crossfit, powerlifting and all the other modalities will build muscle, but that’s not their focus. They want performance and any muscle they build is a side effect. Not so with bodybuilding where muscle size and shape are the priorities. Learning how to build muscle for the sake of building muscle has some benefits to the performance athlete. It allows for ais less injury prone. Its also a fact that bigger muscle contract harder regardless of technique or form, so it’s a good strategy to throw in some bodybuilder muscle building sessions here and there to give yourself stronger muscles to then train for performance. Build the muscle bigger, then train it to perform better.
The slider reverse lunge is simple to perform and doesn’t need much in the way of instructions. Simply grab a Valslide, or a similar tool that will allow you to move smoothly across the ground. Put the slide under one foot, and use that foot to slide into a reverse lunge, and then return to standing. Try doing this exercise after one of the ones above, and just wait until you feel the burn!
The function of the gluteus maximus is primarily upper leg (thigh) extension, such as moving the upper leg backward—think rising from a squat position. Another way of thinking about this is bringing the torso upright after being hinged forward. Think of a kettlebell swing and you’ll get a good visual for the major action of the gluteus maximus muscle.
The high levels of muscle growth and repair achieved by bodybuilders require a specialized diet. Generally speaking, bodybuilders require more calories than the average person of the same weight to provide the protein and energy requirements needed to support their training and increase muscle mass. In preparation of a contest, a sub-maintenance level of food energy is combined with cardiovascular exercise to lose body fat. Proteins, carbohydrates and fats are the three major macronutrients that the human body needs in order to build muscle.[24] The ratios of calories from carbohydrates, proteins, and fats vary depending on the goals of the bodybuilder.[25]
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