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To Exercise or Not to Exercise Potentially Dangerous Exercises Abdominal Machines for a Flat Mid-Section. Exercise lists and definitions
Knee extensions as a means of improving squat strength:
The knee extension is performed such that the thigh is fixed to the machine, while the knee extension force generated by the quadriceps serves to move the tibia across the femur. In a squat, the trunk, hip and knee extensors act as prime movers, moving the femur across the tibia, which is the fixed distal segment (along with the foot) in this closed kinetic chain exercise. The relevance here lies in the fact that the motor recruitment patternsfor the knee extension are 180 degrees out of phase with the recruitment patterns activated by the CNS to perform the squat. Another classic exampleis the difference between performing a lat pull down and a chin-up. Any serious climber will tell you that there is a huge difference in the strength quality necessary to perform a closed chain pull-to-press over a rock ledge and an open chain lat pull down."
It is this very point which must be considered when designing resistance training programs for athletes. If for example you use an open chain leg press in attempt to develop explosive strength for sprinting, you will NEVER achieve optimal performance. To shed further light on this potentially "very deep subject", when training a cyclist, you have carryover from both open chain and closed chain exercises due to the very nature of cycling (pushing the pedal down from a seated position vs. standing and driving a big gear or during an intense hill climb).
I choose this example because this is where Open and
Closed Chain have a grey
Initially, when the cyclist stands up to drive downward on the pedal, his body may momentarily move away from the pedal, until the arms counter the upward movement of the body - turning the movement into an open chain movement as the pedal descends away from the body. The same scenario can be developed for a boxer punching an opponent in the head; the chain is closed upon contact, yet opens as the force of the arm overcomes the momentary resistance created by the head (a concept I am very familiar with by the way!). This is why boxers can be seen doing both open and closed chain exercises in their training programs, if their coach knows what he is doing!
In bodybuilding, the concept of open and closed chain is far less relevant because there is no athletic component to bodybuilding; the goal being to have the biggest muscles, the best proportions and a good posing routine.
Bodybuilders can benefit greatly from this information though, as alternating between open and closed chain exercises serves to more fully develop both the nervous system and musculature due to the variety of recruitment patterns needed.
To give another illustration that may help clear the confusion, consider that running is a closed chain dominant exercise (you apply force against the earth and you move), while cycling is predominantly an open chain exercise (press on the pedal and it moves away from you). If there was any real transfer of strength qualities and skills developed, Carl Lewis would make a hell of a track cyclist and the Race Across America would probably be won by an ultra distance runner, or vice versa.
PAUL CHEK
To Exercise or Not to Exercise
With cold season upon us, it's good to know when to
workout and when not
by Michele Stanten with Selene Yeager
(by Clint Phillips)
Non-Functional and Potentially Dangerous Exercises
The push up is one of those exercises that seem to have been around forever. I remember my friends and I doing pushups all summer long when we were younger and didn't have access to weights. When done correctly push ups can effectively train the chest, shoulders and triceps with one movement. With some creativity, you can add some variation to a traditional push up and increase the challenge to the body. I've been incorporating some of these push up variations successfully for years, and you & your athletes will enjoy the challenge! STANDARD PUSH UP Concentrate on keeping the back straight. Arms a little wider than shoulder width. Keep the movement in control.
INCLINE PUSH UP -This movement will place more stress on the upper chest and shoulders. You can make it even harder by having the athlete place only one foot on the box.
STABILITY PUSH UP This push up is much harder than it appears. It's a great exercises for shoulder stabilization. Make sure you have spotters on each side of the athlete. ADVANCED STABILITY PUSH UP Only attempt this with highly advanced athletes. It's an incredible exercise for shoulder stabilization and balance. Proper spotters and safety are a must.
Behind the head Lat Pull Downs
Behind the head Lat Pull Downs are very damaging to the anterior capsule of the glenohumeral joint. This is because of the following reasons:
1. Most Lat Pull machines are not designed with sufficient ergonomics to allow optimal body positioning to do the exercise. Because you generally can't get close enough to the machine to have the cable hang over T1, the resulting compensation is a forward lean of the trunk, which places excessive stress on the shoulder joint in external rotation and horizontal abduction (the exact position which loads the weakest portion of the shoulder joint capsule). Repeated exposure under load will lead to glenohumeral joint laxity, which can be career threatening if you are an athlete.
2. To prevent bashing your head with the bar, it is common to protrude the head forward into a forward head posture. This causes excessive stress on the cervical spine because of the force transmission through the elevators and stabilizers of the shoulder girdle that are very active during this exercise.
3. The Levator Scapulae is a very important and complex muscle which
provides rotation and frontal plane stabilization to the cervical spine and inferiorly rotates the glenohumeral joint. When performing the typical
behind head lat pull, the levator scapulii are heavily recruited to inferiorly rotate the glenohumeral joint. Because the loads are often very
high (far too high for most people based on body language fit for someone being electrocuted) the levator scapulii are recruited to the point of
strain, resulting in neck pain and lost range of motion in the cervical
4. Beside wearing the neck and shoulder out, the exercise promotes bad motor patterning, as it promotes forward head posture.
By Paul Chek
Increasing My Vertical Jump
Can Those Throbbing Abdominal Belts Melt Fat From Your Stomach? Can Electronic Muscle Stimulators Improve Your Physique? The relentless supplement industry is not the only party guilty of false advertising. Many years ago, I remember seeing a machine resembling a lie detector (ironically!) comprised of electrodes that attach to muscles in the upper and lower body (Electronic Muscle Stimulators). Makers of such units claim that electronic impulses miraculously "massage" newfound muscularity, simulating the impact of intense weight training while you sit comfortably in an easy chair watching your favorite television show! Needless to say, these machines are absolutely useless in building muscle or burning fat, but the advertisements made strong, convincing claims to the contrary. Recently, I noticed that these same electrode based products, proven false many years ago, have resurfaced, but with an interesting twist -- they now wrap around your mid-section and are "a cure for the bulging stomach". These false advertisements claim that a vibrating belt can transform your flabby belly into a sleek, slim mid-section. To put it mildly, these vibrating ab belts and muscle stimulators are ABSOLUTE FALLACIES, no different from supplements or the seemingly endless supply of abdominal "toning" devices available through mail order companies. Sure, the advertisements promise lean, defined six-pack abdominals without having to follow proper diet and exercise techniques. What an attractive and convenient alternative! I can sit in my chair and sleep my way to a stunning mid-section! Unfortunately, you will wear the belt for several weeks, find absolutely NO improvement in the appearance of your stomach, and forget to return the product. Does this sound familiar? The same concept applies to the Electronic Muscle Stimulators which claim to increase muscle mass through vibrating electrodes. It's very sad, but endless lies and deception comprise this multi-billion dollar industry, and we have all fallen prey to their unethical advertising tactics.
Deadlifts: Stiff Legged:Place a barbell on the floor and stand behind it with your shins touching the bar. Bend over, take a shoulder width overgrip on the bar and stand erect. Your arms should be straight and at your sides, with the bar resting across your upper thighs. That is the starting position.
Abdominal Machines For A Muscular, Flat Mid-Section?What about all of those abdominal machines claiming to "shape, firm, and tone that sagging middle"? And the "inexpensive home gyms" that have some beefed up trainer saying how he gained 30 pounds of muscle in 10 days using the simple, no fuss "bodypumper"? These abdominal machines, which are nothing but overpriced plastic salad bowls, are portrayed as having built some of the greatest bodies on earth, when in fact they've done nothing but produce significant revenue for the company that promotes such gibberish. The fact is, NO machine on the market today is effective in building a firm, athletic mid-section, AS THE SIMPLE ROAD TO RIPPED ABDOMINALS IS BODY FAT REDUCTION VIA PROPER DIET, PERIOD! Oh, this is too easy, you say? When I had a 43 inch waist, no abs were visible, and at 33 inches, my abs were extremely defined, yet I RARELY PERFORMED DIRECT ABDOMINAL TRAINING, AND DID NOT ACHIEVE DEFINITION IN MY STOMACH UNTIL I LOST EXCESS FAT THROUGH A NEW DIETARY APPROACH. Nevertheless, these companies will have you believe otherwise.
Bent Over Rows:The Real Back Thickener Are you ready to get you back thick.....I mean so thick it feels like it is going to explode? Well let's get started! One of the biggest problems with not being able to develop a thick back is not the lack of genetics, but doing the wrong exercises. To many of us get stuck on the idea that isolation exercises are best. It's alright to use them as tools, but don't ever use them in place of the basic compound exercises. Perhaps one of the best exercises to thicken the back is: "The Bent Over Row." In fact, IFBB Pro Bodybuilder Porter Cottrell says, "Nothing creates the illusion of being bigger and gives you a greater advantage on stage than having a bigger thicker back, and one of the best basic compound movements for the back is the bent over barbell row." As with most exercises, proper form is absolutely necessary to get optimal growth. The lack of good form means the wrong muscles will be stressed and at the worst....injury. Many times in the gym you will see people doing the bent over row while standing almost completely erect. Then they will even use a complete body swing to lift the weight. This kind of form is incorrect and will not lead to optimal back growth. PROPER FORM
So what is good form you ask? Simple. Take a good stable stance with you feet about shoulder's width. Lean forward to about a 45 degree angle and bend the knees just slightly so you almost settle your abdomen onto your thighs with the hips being the center of gravity. The head and eyes should be pointed downward to help keep the back in proper position. Make sure the back is kept stable and flat by keeping that slight arch in the lumbar and the shoulders pulled back before you attempt to lift the weight off the floor. Most injuries come from the weight being lifted with the back rounded and then trying to correct the position in the middle of the lift. So get you body position right first!
GRIP
Next comes the grip. Should it be wide of narrow? Start out by using a medium grip by grabbing the bar just a little bit wider that shoulders width . Using a grip that is too wide or too narrow only means that you will not be able to get a full contraction of your back muscles. There are however, several different hand positions or grips that we can use. We have the pronated grip (over hand), the supinated grip (underhand), and the over and under grip. Which one is best?
Pronated grip
With the pronated or over hand grip you want to pull the bar, with the elbows pointing upward, in a straight line up to just below the sternum. This is the point at which the greatest number of back muscles are activated. Where most people make a big mistake is by pulling the bar to the abdomen. This causes many of the adductors muscles of the shoulder girdle (upper back) not to be activated. Because the biceps are deactivated in this movement, you may not be able to lift quite as weight as you would with the supinated grip.
Supinated grip
Now, if you want to decrease activation of the shoulder girdle muscles and increase lat activation use a supinated or underhand grip and pull the bar up to the abdomen in a straight line. With this grip you should be able to increase the weight you use because you are also increasing activation of the biceps. Split grip
The split or over and under grip simply means having one hand pronated and one hand supinated. This grip is more commonly used by powerlifters and will enable you to lift much more weight with out the use of lifting straps. Because the two different grips cause slightly different muscle recruitment patterns, it would be a real good idea to switch hand position every set.
The Stiff Legged DeadliftMy reader's comment that the majority of orthopedic experts and Chiropractic physicians believe the stiff legged style of lifting to be dangerous is quite correct. Although this brief article is too limited in scope to detail the mechanics of the lifting process, the discs between each vertebra are exposed to high forces of compression. However, one of the overlooked factors when lifting with so-called straight legs, is that the stiff legged deadlift, if done properly, is not actually done with "stiff" or straight legs. Pelvic rotation around joints of the hips is an extremely important phase of any type of bending sequence. If the knees are kept "locked" while flexing or bending forward at the waist, the pelvis will not rotate properly, and will in fact, cause excessive force in the lumbar region. One must bend the knees slightly and maintain that slightly bent position throughout the entire performance of a set of
stiff legged deadlifts. This means that the knees do not straighten at all as one nears the upright position, and that conversely, the knees do not flex or bend as the weight is lowered. Of the most common mistakes made during this lift, completely straightening the knees at the extension phase of the lift, or in fact, holding them locked throughout the lift or set is one of the most serious and damaging. Another is the tendency to bend the knees more than their original amount as the weight is lowered, which eventually and inevitably leads to a mispositioning of the weight itself. Despite the disadvantages, I believe that if one does the stifflegged deadlift correctly, it can be an effective muscle and strength building movement. There are many points which must be emphasized: obtaining a full range of motion, moving the resistance under careful control, decelerating as the lumbar spine reaches normal anatomical extension, keeping the bar close to the body as possible throughout the entire movement, maintaining the proper degree of knee flexion, and correctly and accurately setting the mind to exert force in the proper sequence in each phase of the lift are all skills that need to be practiced. This exercise can prove to be beneficial to those who do not have a history of injury, or anatomical limitations which would prevent the proper and effective performance of the movement. Taken from the June 1987 Steel Tip.
To Squat Or Not To SquatIf I have to choose only one exercise to do the rest of my life it definitely would be the squat, Period. The squat is the most effective exercise you can do, Period. So why wait and make excuses, such as they are bad for my knees?
There are two approaches to squatting you can take. Squat for power and strength or squat shape. I will discuss strength squatting here. From an athletic standpoint you will want to use strength and power squatting.
STRENGTH AND POWER-This form of squatting will be set up in this manner. You will squat with the bar resting on your lower traps. The trick is to wedge the bar between the traps and the rear deltoids. A wide stance is preferable as this draws strength from your hips and glutes.
You will want to completely set the bar in place on your back before you take any other steps. Once the bar is in place tighten you abs, lower back, and hips. Take a deep breath and slowly walk two steps back from the rack. Practice taking two steps. Never less and never more. Take a stance that places your feet about 3 to 4 inches wider then shoulder width.
From here on you must focus and take control of the bar. Your decent must be controlled and deliberate. Begin by tightening every muscle from your toes to your traps. I mentally go from muscle group to muscle group doing a check to make sure the group is ready and tight. A mental lapse during the decent or ascent can be disastrous with heavy weights.
Pick a spot on the wall or mirror about one foot above eye level. You will look at this spot during the entire lift. This trick will keep your back erect and keep you from falling forward. I tape a newspaper to the mirror so I do not see myself in the mirror. Seeing yourself in the mirror will cause you to look slightly downward on your decent. Take a deep breath and hold it for the entire decent. This is very important as it helps keep your torso tight during the squat.
Begin a decent that moves at a comfortable pace yet not to slow. Never go slow (negatives). Your decent should be to a position parallel to the floor. That is, your hip joint should be slightly below your knee joint. Once you reach this position you should explode back up to the starting position. During your accent you should exhale at the end of the squat.
Once at the starting position get set for the next rep. Do not ascend rapidly then begin a decent before getting set again. Failing to get set again lets your body begin descending while it is loose and susceptible to injury.
EQUIPMENT- Power belt, knee wraps, chalk, and stable shoes. A belt should not be worn until you are working with weights 60% of your max. By using a belt for lighter weight you do not allow your torso to strengthen to handle heavier weights. Do not get in a habit of depending on a belt. This holds true for knee wraps also. Use chalk on your hands and back to keep the bar from slipping. Squat shoes are best as they provide unparalleled support.
POWERLIFTING COMPETITION EQUIPMENT- I will discuss squat suits, power belts, wrist wraps, squat briefs, type of chalk, specialized knee wraps, and shoes on an individual basis through email.
Chris Berry 10/11/01
Exercise lists and definitions
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