STREET VIOLENCE WATCH
Friday, April 22 2016
Safety of the Squat Exercise
1) the legs are often caught in parachute lines as it opens, and
2) parachutists place excessive force on the knee joint when landing.
Recent Scientific Evidence-the Knee
Since work from the 1960s, several research studies have expanded our knowledge and understanding in this area. These include studies made on athletes, animals and individuals who have been through injury rehabilitation. One study used an instrument to measure anterior/posterior displacement of the tibia relative to the femur. Subjects performed varying depths of squats over an eight-week period. Additional data were collected on groups of weightlifters, power lifters, and age-matched controls. Over the eight-week period, there was no increased instability created relative to depth of the squat. Thus, squats do not negatively affect knee stability. Using the same instrument, another group of researchers determined that acute bouts of exercise using a variety of activities (including squats) decreased stability of the knee joint, possibly due to muscle fatigue or elevated body temperature. Therefore, knee instability is not necessarily due to one specific exercise movement such as the squat. However, many exercises can cause acute instability due to other factors.
Various forms of exercise have been shown to increase ligament strength.
In animal studies, endurance exercise has been shown to increase the strength of the ligament-bone attachment, as well as increasing the diameter and collagen content of ligaments. When bone-ligament preparations are tested at high speeds, they fail at a higher maximum load. In athletes rehabilitating injured knees, closed-chain exercises such as the squat are currently used because in the squat, the hamstrings co-contract with other leg muscles to increase the stability of the knee, thus putting less stress on the anterior cruciate ligament.
The Stress of Squats on the Back
Another area of concern for safety in the squat exercise is the low back. If the lift is not properly performed, the forces at the low back maybe intense enough to cause injury.
ACSM CURRENT COMMENT
The most common errors that may lead to back problems include 1) lifting excessive weight and 2) leaning over too far so the weight is lifted by the back and not the legs and hips. Squatting with resistance placed on the upper back across the shoulders does increase the compressive forces on the spine. Maintaining an erect posture helps to evenly distribute the forces on the spine, and to decrease the chance of injury. Forces at the lumbar spine on half-squats with a loaded barbell were determined to be six to ten times the body weight. To reduce both spinal compressive forces and shear forces, the athlete should have the necessary flexibility of the knee, hip and spine to maintain an upright posture during the squat.
Proper Use of Squats in a Training Program
ACSM CURRENT COMMENT
Written for the American College of Sports Medicine by Jeff Chandler, Ed.D., C.S.C.S., FACSM, Jim McMillan, Ed.D., C.S.C.S., W. Ben Kibler, M.D., FACSM, and David Richards, M.D.
Sunday, April 17 2016
BCAA'S: The Building Blocks Of Muscle!
By Contributing Writer
Branched Chain Amino Acids are among the most beneficial and effective supplements in any sports nutrition program.
WHAT ARE BRANCH CHAIN AMINO ACIDS (BCAA'S)?
Branch Chain Amino Acids are the "Building Blocks" of the body. They make up 35% of your muscle mass and must be present for molecular growth and development to take place. Eight are essential (cannot be manufactured by the body) the rest are non-essential (can be manufactured by the body with proper nutrition). Besides building cells and repairing tissue, they form antibodies, they are part of the enzyme & hormonal system; they build RNA and DNA and they carry oxygen throughout the body.
INGREDIENT GUIDES: BCAA
Proteins are made up of amino acids. The difference between full spectrum amino acids and regular protein powders is that protein powders have fillers, sweeteners, dyes and extra carbohydrates. More than 20 amino acids are needed to build muscle, red blood cells, and hundreds of other molecules that sustain life. Your body can produce all but 8-10 amino acids which must be obtained through your diet or supplementation. A complete amino acid profile is needed by your body to reach your maximum fitness potential.
THE FUNCTION OF BCAA'S
They act as nitrogen carriers which assist the muscles in synthesizing other amino acids needed for anabolic muscle action. In simpler terms, BCAA's combine simpler amino acids to form a complex whole muscle tissue. In this action, BCAA's stimulate production of insulin, the main function of which is to allow circulating blood sugar to be taken up by the muscle cells and used as a source of energy. This insulin production promotes amino acid uptake by the muscle.
HOW DO BCAA'S WORK?
During intense weight training the body is normally in a highly catabolic condition. At this time glycogen stores are being rapidly depleted and the liver in turn must synthesize glucose by a conversion of L-Alanine. Alanine makes up over half of the amino acid content released from muscles during exercise.
The release of BCAA's is generally recognized as the signal to the body to stop protein syntheses in the muscles, especially during times of stress. Providing the Branch Chain Amino Acids, especially during those times of stress may profoundly affect this signal and allow protein synthesis to continue onward.
IMPORTANT CO-FACTORS IN BCAA SUPPLEMENTATION
As with most nutrition, many bodybuilders overlook the importance of combining and inclusion of co-factors when supplementing. Below is a list of supplements that play a part in increasing the effectiveness of BCAA supplementation.
The most desired form is chromium picolinate which functions to increase the effectiveness of insulin, a hormone composed of 91 amino acids, manufactured in the beta cells of the pancreas. Insulin is the most essential link in the muscle building chain. Chromium enhances the rate at which protein is synthesized by the body, and promotes intracellular uptake of free amino acids from the blood and assimilation by the cells. It retards the rate of protein degradation by the body within the cells. This is an absolute must to include in a quality Branch Chain Amino formula.
Zinc is the regulator of insulin. The natural co factor to this element is Vitamin B-6. As Vitamin B-6 is an important intermediary in amino acid metabolism; those athletes whose diets are high in amino acids need additional amounts from the body. The transport of amino acids in the cellular interior is most dependent on an adequate supply of Vitamin B-
Another important water soluble nutrient that must be present in the protein metabolism and in the synthesis of amino acids.
This all important member of the B family has an important role in protein synthesis and the manufacture of glycogen.
HOW MUCH AND WHEN SHOULD YOU TAKE AMINO ACIDS?
With BCAA's 4-8 grams before a work out and 4-8 grams after is optimal. Lesser amounts are effective but if increased performance and recovery are needed a higher dosage is more effective. Taking BCAA's immediately before or during a strenuous workout or cardio session will increase performance.
Taking them after with a post work out meal or recovery drink will help speed the replacement of BCAA's in the muscles, speeding muscle recovery and preventing overtraining. For optimum results in supplement form, it is desirable to take your BCAA's separately from the other amino acid groupings for the fact that they totally dominate the race for entry into the bodies' systems.
Branched Chain Amino Acids are among the most beneficial and effective supplements in any sports nutrition program. Although these supplements have been around for a long time and the scientific understanding in the exercise performance benefits of BCAA supplementation is rich, many people don't know exactly how they exert their effects or how vital BCAA supplementation is.
One thing is definitely sure though, that anyone who is looking to put on more muscle or gain more energy naturally without any side effects should very seriously consider taking BCAA's.
1. Expert Fitness "Amino Acids" 2003.
2. Elite Image Nutrition "What Are Branch Chain Amino Acids?" 2003.
3. Gastmann "Overtraining and the BCAA hypothesis. Medicine and Science in Sports and Exercise" 30, 1173-8 (1998).
4. Protein Customizer "BCAA'S" 2003.
Thursday, April 14 2016
13 THINGS MENTALLY TOUGH PEOPLE DON'T DO. Amy Morin
1. They don't waste time feeling sorry for themselves.
"Feeling sorry for your self is self-destructive," she writes. "Indulging in self-pity hinders living a full life."
It wastes time, creates negative emotions, and hurts your relationships.
The key is to "affirm the good in the world, and you will begin to appreciate what you have," Morin writes. The goal is to swap self-pity with gratitude.
2. They don't give away their power.
People give away their power when they lack physical and emotional boundaries, Morin writes. You need to stand up for yourself and draw the line when necessary.
If other people are in control of your actions, they define your success and self-worth. It's important that you keep track of your goals and work towards them.
Morin uses Oprah Winfrey as an example of someone with a strong grip on their power. Winfrey grew up dealing with poverty and sexual abuse, but "she chose to define who she was going to be in life by not giving away her power," she says.
3. They don't shy away from change.
There are five stages of change, Morin writes: pre-contemplation, contemplation, preparation, action, and maintenance.
Following through with each of the five steps is crucial. Making changes can be frightening, but shying away from them prevents growth. "The longer you wait, the harder it gets," she says, and "other people will outgrow you."
4. They don't focus on things they can't control.
"It feels so safe to have everything under control, but thinking we have the power to always pull the strings can become problematic," Morin writes.
Trying to be in control of everything is likely a response to anxiety. "Rather than focusing on managing your anxiety, you try controlling your environment," she says.
Shifting your focus off the things you can't control can create increased happiness, less stress, better relationships, new opportunities, and more success, Morin writes.
5. They don't worry about pleasing everyone.
Oftentimes, we judge ourselves by considering what other people think of us, which is the opposite of mental toughness.
Morin lists four facts about constantly trying to be a people-pleaser: It's a waste of time; people-pleasers are easily manipulated; it's OK for others to feel angry or disappointed; and you can't please everyone.
Dropping your people-pleasing mindset will make you stronger and more self-confident.
6. They don't fear taking calculated risks.
People are often afraid to take risks, whether it's financial, physical, emotional, social, or business-related, Morin writes. But it comes down to knowledge.
"A lack of knowledge about how to calculate risk leads to increased fear," Morin writes.
To better analyze a risk, ask yourself the following questions:
What are the potential costs? •What are the potential benefits?
7. They don't dwell on the past.
The past is in the past. There's no way to change what happened, and "dwelling can be self-destructive, preventing you from enjoying the present and planning for the future," Morin writes. It doesn't solve anything and can lead to depression, she writes.
There can be a benefit to thinking about the past, though. Reflecting on the lessons learned, considering the facts rather than the emotions, and looking at a situation from a new perspective can be helpful, she says.
8. They don't make the same mistakes over and over.
Reflecting can ensure you don't repeat your mistakes. It's important to study what went wrong, what you could have done better, and how to do it differently next time, Morin writes.
Mentally strong people accept responsibility for the mistake and create a thoughtful, written plan to avoid making the same mistake in the future.
9. They don't resent other people's success.
Resentment is like anger that remains hidden and bottled up, Morin writes.
Focusing on another person's success will not pave the way to your own, since it distracts you from your path, Morin writes. Even if you become successful, you may never be content if you're always focusing on others. You may also overlook your talents and abandon your values and relationships, she says.
10. They don't give up after the first failure.
Success isn't immediate, and failure is almost always an obstacle you will have to overcome. "Take, for example, Theodor Giesel — also known as Dr. Seuss — whose first book was rejected by more than 20 publishers," Morin writes. And now Dr. Seuss is a household name.
Thinking that failure is unacceptable or that it means you aren't good enough does not reflect mental strength. In fact, "bouncing back after failure will make you stronger," Morin writes.
11. They don't fear alone time.
"Creating time to be alone with your thoughts can be a powerful experience, instrumental in helping you reach your goals," Morin writes. Becoming mentally strong "requires you to take time out from the busyness of daily life to focus on growth."
Here are some of the benefits of solitude Morin lists in her book:
-Solitude at the office can increase productivity.
12. They don't feel the world owes them anything.
It's easy to get angry at the world for your failures or lack of success, but the truth is no one is entitled to anything. It must be earned.
"Life isn't meant to be fair," Morin writes. If some people experience more happiness or success than others, "that's life — but it doesn't mean you're owed anything if you were dealt a bad hand."
The key is to focus on your efforts, accept criticism, acknowledge your flaws, and don't keep score, Morin writes. Comparing yourself to others will only set you up for disappointment if you don't receive what you think you're owed, she says.
13. They don't expect immediate results.
"A willingness to develop realistic expectations and an understanding that success doesn't happen overnight is necessary if you want to reach your full potential," Morin writes.
Mentally weak people are often impatient. They overestimate their abilities and underestimate how long change takes, she says, so they expect immediate results.
It's important to "keep your eyes on the prize" and relentlessly work towards your long-term goals. There will be failures along the way, but if you measure your progress and look at the big picture, success will become attainable