<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" media="screen" href="/~d/styles/rss2full.xsl"?><?xml-stylesheet type="text/css" media="screen" href="http://feeds.feedburner.com/~d/styles/itemcontent.css"?><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" version="2.0">

<channel>
	<title />
	
	<link>http://www.biomechanix.net</link>
	<description>Perfect Your Inner Machine</description>
	<lastBuildDate>Thu, 17 May 2012 22:16:48 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.2.1</generator>
		<atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="self" type="application/rss+xml" href="http://feeds.feedburner.com/biomechanix/KJlp" /><feedburner:info uri="biomechanix/kjlp" /><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="hub" href="http://pubsubhubbub.appspot.com/" /><item>
		<title>5500 sq ft Facility</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/-kk94K-w0Pg/</link>
		<comments>http://www.biomechanix.net/2012/01/5500-sq-ft-facility/#comments</comments>
		<pubDate>Thu, 05 Jan 2012 01:28:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1532</guid>
		<description />
			<content:encoded><![CDATA[<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/web5.jpg"><img class="alignnone size-medium wp-image-1458" title="web" src="http://www.biomechanix.net/wp-content/uploads/2011/12/web5-300x202.jpg" alt="" width="300" height="202" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2012%2F01%2F5500-sq-ft-facility%2F&amp;title=5500%20sq%20ft%20Facility" id="wpa2a_2"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/-kk94K-w0Pg" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2012/01/5500-sq-ft-facility/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2012/01/5500-sq-ft-facility/</feedburner:origLink></item>
		<item>
		<title>Cycle</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/ARCgQBKsiIE/</link>
		<comments>http://www.biomechanix.net/2011/12/cycle/#comments</comments>
		<pubDate>Fri, 30 Dec 2011 20:19:44 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1476</guid>
		<description />
			<content:encoded><![CDATA[<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6797.jpg"><img class="alignnone size-medium wp-image-1477" title="_MG_6797" src="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6797-300x199.jpg" alt="" width="300" height="199" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F12%2Fcycle%2F&amp;title=Cycle" id="wpa2a_4"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/ARCgQBKsiIE" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/12/cycle/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/12/cycle/</feedburner:origLink></item>
		<item>
		<title>Recovery</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/Eff044qg2oA/</link>
		<comments>http://www.biomechanix.net/2011/12/recovery/#comments</comments>
		<pubDate>Fri, 30 Dec 2011 20:18:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1473</guid>
		<description />
			<content:encoded><![CDATA[<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6834.jpg"><img class="alignnone size-medium wp-image-1474" title="_MG_6834" src="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6834-300x199.jpg" alt="" width="300" height="199" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F12%2Frecovery%2F&amp;title=Recovery" id="wpa2a_6"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/Eff044qg2oA" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/12/recovery/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/12/recovery/</feedburner:origLink></item>
		<item>
		<title>Weights</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/NDNlCnuiNHw/</link>
		<comments>http://www.biomechanix.net/2011/12/1460/#comments</comments>
		<pubDate>Thu, 29 Dec 2011 19:04:58 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1460</guid>
		<description />
			<content:encoded><![CDATA[<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6731.jpg"><img class="alignnone size-medium wp-image-1461" title="_MG_6731" src="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6731-300x199.jpg" alt="" width="300" height="175" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F12%2F1460%2F&amp;title=Weights" id="wpa2a_8"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/NDNlCnuiNHw" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/12/1460/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/12/1460/</feedburner:origLink></item>
		<item>
		<title>Cardiovascular Testing</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/JfELQXyeTho/</link>
		<comments>http://www.biomechanix.net/2011/12/weights/#comments</comments>
		<pubDate>Thu, 29 Dec 2011 18:28:16 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1442</guid>
		<description><![CDATA[&#160;]]></description>
			<content:encoded><![CDATA[<p>&nbsp;</p>
<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6776.jpg"><img class="alignnone size-medium wp-image-1453" title="_MG_6776" src="http://www.biomechanix.net/wp-content/uploads/2011/12/MG_6776-300x199.jpg" alt="" width="300" height="199" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F12%2Fweights%2F&amp;title=Cardiovascular%20Testing" id="wpa2a_10"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/JfELQXyeTho" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/12/weights/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/12/weights/</feedburner:origLink></item>
		<item>
		<title>Balance</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/c860ko2WN2E/</link>
		<comments>http://www.biomechanix.net/2011/12/vinny/#comments</comments>
		<pubDate>Thu, 29 Dec 2011 18:23:27 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Imagery]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1438</guid>
		<description />
			<content:encoded><![CDATA[<p><a href="http://www.biomechanix.net/wp-content/uploads/2011/12/web4.jpg"><img class="aligncenter size-medium wp-image-1439" title="web" src="http://www.biomechanix.net/wp-content/uploads/2011/12/web4-300x199.jpg" alt="" width="300" height="199" /></a></p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F12%2Fvinny%2F&amp;title=Balance" id="wpa2a_12"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/c860ko2WN2E" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/12/vinny/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/12/vinny/</feedburner:origLink></item>
		<item>
		<title>Biomechanical Breakdown During Resistance Training/Part 2</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/OZWLMj8YazU/</link>
		<comments>http://www.biomechanix.net/2011/11/biomechanical-breakdown-during-resistance-trainingpart-2/#comments</comments>
		<pubDate>Sat, 05 Nov 2011 02:40:21 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Workout Tips Blog]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1307</guid>
		<description><![CDATA[Taken from the part one intro: Without proper guidance and professional instruction most people and athletes have incorrect form while lifting weights resulting in poor mechanics throughout the entire exercise. Maintaining a Five Point Contact is key to performing all resistance exercises.  This is a subject I covered in an earlier article called “Maintaining Proper [...]]]></description>
			<content:encoded><![CDATA[<p>Taken from the part one intro:</p>
<p>Without proper guidance and professional instruction most people and athletes have incorrect form while lifting weights resulting in poor mechanics throughout the entire exercise.</p>
<p>Maintaining a Five Point Contact is key to performing all resistance exercises.  This is a subject I covered in an earlier article called “Maintaining Proper Spinal Alignment While Resistance Training”.</p>
<p>Here is the second list of some of the most common mistakes made during these lifts and their correction’s as these are the ones most often performed with improper technique.</p>
<p><span style="text-decoration: underline;">Cable Triceps Pushdown</span></p>
<p>Mistakes:</p>
<p>Rounded shoulder positioning with no scapular stability.</p>
<p>Head tilted down and forward, excessive upper arm movement.</p>
<p>Elbows placed right against side of body just above hips.</p>
<p>Standing with body completely upright allowing lower back to go into excessive lordosis.</p>
<p>Swinging of entire body.</p>
<p>Corrections: (You will notice that the rules for this are similar to the bicep curls. It’s the same movement but reversed.)</p>
<p>Shoulders slightly pulled back and stable, the weight should be supported by posterior deltoids and scapular musculature.  This will help with preventing the upper arm from going into too much shoulder flexion or extension.</p>
<p>Do not place elbows against body. This will create unnecessary stress on glenohumeral joint and result in tendonitis. Elbows should be in line with upper body and about a golf or tennis balls distance away from sides of body.</p>
<p>Position head in neutral, looking straight ahead and without dropping chin towards chest.  Tucking chin downwards will result in rounding shoulders and loss of scapular stability.</p>
<p>Stand in a partial squat initiated from hips, not the knees and keep core musculature tight throughout. This will prevent swaying of the entire body and help protect against lower back injury.  Keep the 4-2-5 concept in mind.</p>
<p>Work triceps throughout entire range of motion, making sure triceps are under constant tension throughout entire movement.</p>
<p><span style="text-decoration: underline;">Front Neck Pull Down</span></p>
<p>Mistakes:</p>
<p>Excessive swinging of upper body</p>
<p>Not maintaining scapular stability, and letting shoulder rise, placing undue stress on tendons and ligaments.</p>
<p>Tucking chin downward while performing movement, and not maintaining normal lordosis.</p>
<p>Pulling bar down to far down and going into internal rotation of the shoulders.</p>
<p>Corrections:</p>
<p>Sit upward maintaining a neutral spine.</p>
<p>Place hands on bar with either a 1 or 1.5 biacromial width.</p>
<p>Bar should travel in a straight line down to touch superior part of sternum just below clavicle.  At top end of movement maintain scapular stability by not going into a full extension. You want to let bar rise as far up as long as the shoulders do not come up as well, unless you are performing a scapular retraction and protraction. Weight must remain on musculature not pulling on joints by maintaining a constant a muscular contraction.</p>
<p>Maintain tight core musculature and the only part of body moving should be arms.</p>
<p><span style="text-decoration: underline;">One Arm Dumbbell Rows</span></p>
<p>Mistakes:</p>
<p>Not maintaining normal lordosis and performing exercise with a rounded back.</p>
<p>Excessive use of trapezium while pulling weight upward during exercise.</p>
<p>Losing scapular stability while performing exercise.</p>
<p>Not keeping neck in a neutral position.</p>
<p>Corrections:</p>
<p>Maintain a neutral spine position and normal lordosis of lumbar spine. Performing this exercise with a rounded back puts you at risk for vertebral disk herniation.</p>
<p>Drive weight upwards by driving with elbow and shoulder depressed. This will prevent too much trap recruitment.</p>
<p>Be sure to keep scapula pulled back slightly and stable with a constant contraction at all times.</p>
<p>Keep head in a neutral position. Tucking your chin downward will round your upper back and cause loss of scapular stability.</p>
<p><span style="text-decoration: underline;">Supine Dumbbell Chest Flys</span></p>
<p>Mistakes:</p>
<p>Excessive arching of back on bench by not maintaining a 5-point contact.</p>
<p>Too much flexion in elbows resulting in a movement more similar to a press.</p>
<p>Performing exercise with elbows placed at a higher level than acromioclavicular joint throughout movement causing too much compression on AC complex.</p>
<p>Performing with a partial or not full range of motion.</p>
<p>Corrections:</p>
<p>Maintaining a 5-point contact throughout exercise, and keeping a tight core.</p>
<p>Elbows should have a very slight bend in them, which stays constant throughout execution of exercise. If you are increasing the flexion in your elbows in the negative or eccentric part of this exercise then you are doing a chest press.</p>
<p>Throughout exercise in both the eccentric and concentric motion of this exercise the elbows should be 1-3 inches lower than shoulder girdle. Hands should follow a line at mid sternum height in the transverse plane.</p>
<p>Performing this exercise with elbows more superior of acromioclavicular joints can cause AC impingements.</p>
<p>Perform a full range of motion, which is when hands are in line or slightly below body in the frontal plane.  In other words your hands should be at least the level of the bench you are lying on in the downward motion of exercise.</p>
<p>If you are still confused and need a visual aid then two excellent resources are the books “Strength Training” by the National Strength &amp; Conditioning Association, or “Strength Training Anatomy”.</p>
<p>Human Kinetics publishes both books.</p>
<p>&nbsp;</p>
<p>Jon Torerk, CSCS</p>
<p>&nbsp;</p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F11%2Fbiomechanical-breakdown-during-resistance-trainingpart-2%2F&amp;title=Biomechanical%20Breakdown%20During%20Resistance%20Training%2FPart%202" id="wpa2a_14"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/OZWLMj8YazU" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/11/biomechanical-breakdown-during-resistance-trainingpart-2/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/11/biomechanical-breakdown-during-resistance-trainingpart-2/</feedburner:origLink></item>
		<item>
		<title>The 4-2-5 Concept</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/e4vKHzgV7w8/</link>
		<comments>http://www.biomechanix.net/2011/09/the-4-2-5-concept/#comments</comments>
		<pubDate>Sat, 03 Sep 2011 05:57:39 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Workout Tips Blog]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1294</guid>
		<description><![CDATA[I recently attended a seminar that was held here at BioMechanix. The course title was the “Gait for Pain Relief” which hosted by the California Education Commission. Our instructor for the course Sherry Brourman, PT. taught us concepts based on a book she wrote called “Walk Yourself Well”. One of the topics covered I would [...]]]></description>
			<content:encoded><![CDATA[<p>I recently attended a seminar that was held here at BioMechanix. The course title was the “Gait for Pain Relief” which hosted by the California Education Commission. Our instructor for the course Sherry Brourman, PT. taught us concepts based on a book she wrote called “Walk Yourself Well”.</p>
<p>One of the topics covered I would like to share with you, as it is a simple principle to remember and you can literally walk away with this idea immediately.</p>
<p>It is known as the 4-2 concept.  The “4” part of the equation regards your feet.  Imagine the bottom of your foot or sole having four wheels on it just like a toy car.  While standing you want to keep all of your body weight evenly distributed on all four of these wheels on both feet.</p>
<p>The second part of the equation is the “2” which correlates to your pelvis and ribcage.  Imagine if I took two big woks and filled them to the top with water, if you tipped them in the slightest way the water would spill over the sides.  Now take one wok and imagine it is placed at the level of your pelvis and pushed in like a drawer. You want to keep that drawer level.  In order to keep this level and the water from spilling you are going to have to go into a slight squat initiated from the hips, causing a slight bend in the knees. This will put your pelvic girdle in a level position.</p>
<p>As for the ribcage, take a look at where your ribs meet at the sternum.  You will feel a notch that sticks downward towards your umbilicus.  This is your xiphoid process.  If you adjust your upper body positioning so that the xiphoid is pointing straight down in a perfect vertical line then this correlates to the second wok, keeping it level and utilizing your core musculature for support.</p>
<p>Putting these two concepts into play will make you stand correctly. In turn this will help you with proper spinal alignment, keeping proper weight distribution on the muscles and minimizing undo stress on the joints.  If you stand in a position where any of the two woks would spill over, then you are standing either too front or back heavy which places too much stress on the joints, prevents proper muscles from firing, creates muscle imbalances, and poor posture.</p>
<p>To further tweak this concept I put the “5” into the equation, as in the “Five Point Contact”.  If you have been reading my earlier articles then you should know what this is.  Finish off the stance by incorporating the “Five Point Contact”; by drawing your shoulder blades back slightly without disrupting the four wheels and two bowls.  This then creates a 4-2-5 body position.  Whenever you stand you should keep this in mind. Keeping even distribution on all four wheels, maintaining the two level bowls, and the five point concept. This is where the numbers 4-2-5 all come together.</p>
<p>Jon J. Torerk, CSCS</p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F09%2Fthe-4-2-5-concept%2F&amp;title=The%204-2-5%20Concept" id="wpa2a_16"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/e4vKHzgV7w8" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/09/the-4-2-5-concept/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/09/the-4-2-5-concept/</feedburner:origLink></item>
		<item>
		<title>Biomechanical Breakdown During Resistance Training/Part 1</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/3laLGWgeh2w/</link>
		<comments>http://www.biomechanix.net/2011/06/biomechanical-breakdown-during-resistance-training-part-1/#comments</comments>
		<pubDate>Fri, 24 Jun 2011 06:58:19 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Workout Tips Blog]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1269</guid>
		<description><![CDATA[Without proper guidance and professional instruction most people and athletes have incorrect form while lifting weights resulting in poor mechanics throughout the entire exercise. Maintaining a Five Point Contact is key to performing all resistance exercises.  This is a subject I covered in an earlier article called “Maintaining Proper Spinal Alignment While Resistance Training”. Here [...]]]></description>
			<content:encoded><![CDATA[<p>Without proper guidance and professional instruction most people and athletes have incorrect form while lifting weights resulting in poor mechanics throughout the entire exercise.</p>
<p>Maintaining a Five Point Contact is key to performing all resistance exercises.  This is a subject I covered in an earlier article called “Maintaining Proper Spinal Alignment While Resistance Training”.</p>
<p>Here is a list of some of the most common mistakes made during these lifts followed by correction’s as these are the ones most often performed with improper technique.</p>
<p><span style="text-decoration: underline;">Bicep Curls </span></p>
<p>Mistakes:</p>
<p>Rounded shoulder position throughout movement with no scapular stability.</p>
<p>Head tilted down and forward and excessive upper arm movement.</p>
<p>Elbows placed against side of body, just above hips.</p>
<p>Standing completely upright allowing lower back to go into excessive lordosis.</p>
<p>Swinging of entire body.</p>
<p>Corrections:</p>
<p>Shoulders slightly pulled back and stable, the weight should be supported by posterior deltoids and scapular musculature.  This will help with preventing the upper arm from going into too much shoulder flexion or extension.</p>
<p>Do not place elbows against body while curling. This will create unnecessary stress on glenohumeral joint and result in tendonitis. Elbows should be in line with upper body and about a golf or tennis balls distance away from sides of body.</p>
<p>Position head in neutral, looking straight ahead and without dropping chin towards chest.  Tucking chin downwards will result in rounding shoulders and loss of scapular stability.</p>
<p>Stand in a partial squat initiated from hips, not the knees and keep core musculature tight throughout. This will prevent swaying of the entire body and help protect against lower back injury.</p>
<p>Work bicep throughout entire range of motion, making sure bicep is under constant tension throughout entire movement.</p>
<p><span style="text-decoration: underline;">Bench Press</span></p>
<p>Mistakes:</p>
<p>Protracting shoulder blades at top end of the movement.</p>
<p>Flattened thoracic spine while lying on bench, resulting in rounding of shoulders.</p>
<p>Locking elbows out at top range of motion.</p>
<p>Bouncing bar off of sternum at bottom end of exercise.</p>
<p>Lifting rear end (buttocks) off bench while performing exercise.</p>
<p>Corrections:</p>
<p>Maintain a 5-point contact position while lying on bench.</p>
<p>Do not flatten spine out on bench. Thoracic spine should be in neutral position to minimize any back, neck, or shoulder injuries.</p>
<p>Shoulder blades should be in contact with bench at all times. Do not protract them forward.</p>
<p>Lower bar slowly to mid sternum, and lightly touch bar 2 to 3 inches superior of xyphoid process.</p>
<p>Press bar straight up without locking elbows out.</p>
<p>Do not lift buttocks off bench in the process of doing so.  This is a good way to get injured while doing this exercise.</p>
<p>Keep back of head in contact of bench at all times.  Lifting head up will round shoulders forward, which is not desirable.</p>
<p><span style="text-decoration: underline;">Straight Leg Dead Lift:</span></p>
<p>Mistakes:</p>
<p>Not maintaining normal spinal lordosis and initiating motion from lower back and performing motion with a rounded spine.</p>
<p>Not maintaining scapular stability and allowing shoulders to round forward.</p>
<p>Letting knees go into hyper-extension, losing all muscular support in knees, allowing too much stress on posterior cruciate ligament.</p>
<p>Having too much flexion or movement in knees while performing lift.</p>
<p>Letting chin drop down towards sternum and rounding upper back.</p>
<p>Corrections:</p>
<p>Maintain normal spinal lordosis throughout entire motion of lift.</p>
<p>Keep shoulders back by maintaining scapular stability, without shrugging.</p>
<p>Lift should be initiated from hips, not low back.</p>
<p>Knees should have a slight bend in them to keep excessive stress off posterior cruciate ligament.</p>
<p>Head should remain in neutral plane entire time or slightly looking upward looking straight ahead.</p>
<p>Negative part of exercise should be done slowly in order to avoid injuring low back.</p>
<p><span style="text-decoration: underline;">Barbell and Dumbbell Squats:</span></p>
<p>Mistakes:</p>
<p>Initiating motion from knees and not the hips.</p>
<p>Having too much hip flexion during exercise.</p>
<p>Both knees buckle in towards each other during negative and positive contraction of the exercise.</p>
<p>Allowing lower back to round and not maintaining normal lordosis.</p>
<p>Corrections:</p>
<p>Initiate the squat from the hips not the knees.  The hips are where the power comes from and the knees act as a secondary joint, they follow the lead of the hips.  Do not come up onto balls of feet.</p>
<p>Do not lean too far forward; otherwise this becomes a back extension and flexion exercise.  Imagine a cable is attached to the superior part of your sternum and the ceiling keeping your chest up.  Much the same as doing a squat in a 7-degree smith machine.</p>
<p>Keep knees in line with toes. It is OK to let knees go past toes as long as your feet stay in contact with the floor completely.   If you have a long femur and follow that ridiculous rule of not ever allowing knees to surpass toes, the squat cannot be performed within a full range of 90 degrees or lower.  We are all for full range motions.</p>
<p>Do not let knees buckle inwards or outwards of line of toes. This is a good way to tear a meniscus.  If you cannot control this than lower the weight load.</p>
<p>Start with a stance just past hip width for greater stability. Keep feet in position of which you normally stand.  As you master the squat then try a narrower stance, as this is more difficult to perform.</p>
<p>Maintain normal lordosis throughout entire exercise.</p>
<p>To be continued with more exercises in next article……</p>
<p>Jon J. Torerk, CSCS</p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F06%2Fbiomechanical-breakdown-during-resistance-training-part-1%2F&amp;title=Biomechanical%20Breakdown%20During%20Resistance%20Training%2FPart%201" id="wpa2a_18"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/3laLGWgeh2w" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/06/biomechanical-breakdown-during-resistance-training-part-1/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/06/biomechanical-breakdown-during-resistance-training-part-1/</feedburner:origLink></item>
		<item>
		<title>A Quick Breakdown of Fast and Slow Glycolysis</title>
		<link>http://feedproxy.google.com/~r/biomechanix/KJlp/~3/1NvCxDt62ms/</link>
		<comments>http://www.biomechanix.net/2011/05/a-quick-breakdown-of-fast-and-slow-glycolysis/#comments</comments>
		<pubDate>Wed, 25 May 2011 06:17:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Workout Tips Blog]]></category>

		<guid isPermaLink="false">http://www.biomechanix.net/?p=1241</guid>
		<description><![CDATA[Fast glycolysis is also known as anaerobic glycolysis and slow glycolysis is commonly called aerobic glycolysis. These are dictated by the energy demands of the cells.  If there is a rapid or high rate of type II muscle fibers being utilized then fast glycolysis is utilized. If there is a demand for primarily type I [...]]]></description>
			<content:encoded><![CDATA[<p>Fast glycolysis is also known as anaerobic glycolysis and slow glycolysis is commonly called aerobic glycolysis. These are dictated by the energy demands of the cells.  If there is a rapid or high rate of type II muscle fibers being utilized then fast glycolysis is utilized. If there is a demand for primarily type I muscle fibers and oxygen present then slow glycolysis is utilized.</p>
<p>During resistance training your muscles utilize glycogen as its primary fuel source in the process known as glycolysis. This is when your body converts carbohydrates and breaks it down into glucose, and then it is broken down again to form a molecule known as ATP (Adenosine Triphosphate).  After the ATP is utilized it is broken down into ADP (Adenosine diphosphate), which in turn bonds with creatine phosphate to create another ATP molecule.  ATP production occurs in the mitochondria of the muscle cell.</p>
<p><strong>Aerobic System/ Slow Glycolysis: </strong>The aerobic system requires 60 to 80 seconds to produce energy for resynthesizing ATP from ADP + P.  The heart rate and respiratory rate must increase sufficiently to transport the required amount of O2 to the muscle cells, allowing glycogen to break down in the presence of oxygen.  Glycogen is the source of energy used to resynthesize ATP in both the lactic acid and aerobic systems.  The aerobic system, however, breaks down glycogen in the presence of O2, producing little or no lactic acid, which in turn allows the athlete to continue to exercise.</p>
<p>The aerobic system is the primary energy source for events lasting between 2 minutes and 2 to 3 hours.  Prolonged work beyond 2-3 hours may result in the breakdown of fats and proteins to replenish ATP stores as the body’s glycogen supply depletes.</p>
<p>The breakdown of glycogen, fats, or protein produces the by-products carbon dioxide CO2 and water H2O, both of which are eliminated from the body through respiratory and perspiration.</p>
<p>The rate at which athletes can replenish ATP is limited by their aerobic capacity, or the maximum rate at which they can consume oxygen.</p>
<p><strong>Anaerobic System/ Fast Glycolysis</strong>: The anaerobic system refers to the ATP-CP system, also called the anaerobic alactic since lactic acid is not produced during it; the phosphagen system and the lactic acid system.</p>
<p><strong>ATP-CP System:</strong> Muscles can store only a small amount of ATP, energy depletion occurs rapidly when strenuous activity begins. In response, creatine phosphate (CP) or phosphocreatine, which is also stored in the muscle cell, breaks down into creatine (C) and phosphate (P).  The energy released is used to resynthesize ADP + P into ATP.  We can then transform this once more to ADP + P, causing the release of energy required for muscular contraction.</p>
<p>Due to the fact that CP is stored in limited amounts in the muscle cell, this system can supply energy for 8 to 10 seconds.  It is the chief source of energy for extremely quick and explosive activities, such as 100-meter dash, weightlifting, jumping, and throwing events in track and field, vaulting in gymnastics, and ski jumping.</p>
<p><strong>Restoration of Phosphagen:</strong> Through restoration the body recovers and replenishes energy stores to preexercise conditions.  Through its biomechanical means, the body attempts to return to physiological balance (homeostasis), which it has the highest efficiency.  Phosphagen restoration occurs rapidly in first 30 seconds it reaches 70%, and in 3 to 5 minutes it is fully restored to 100%.</p>
<p><strong>Lactic Acid System:</strong> For intensive events up to 40 seconds such as 200 / 400 meter sprinting, the ATP–CP system first provides energy, followed by 8 to 10 seconds by the lactic acid system.  The lactic acid system breaks down glycogen stored in the muscle cells and liver, releasing energy to resynthesize ATP from ADP + P.  Due to the absence of O2 during the breakdown of glycogen, a byproduct called lactic acid (LA) forms.  When high intensity work continues for a prolonged period, large quantities of lactic acid accumulate in the muscle causing fatigue, eventually stopping physical activity.</p>
<p>Full restoration of glycogen takes a long time, even days, depending on the type of training and diet.  For intermittent activity, typical strength or interval training, restoration takes 2 hours to restore 40%, 5 hours to restore 55%, and 24 hours for full restoration to 100% percent.</p>
<p>If the activity is continuous, typical of high intensity endurance activities, restoration of glycogen takes much longer: 10 hour to restore 60% and 48 hours to achieve full restoration 100%. For a normal, or carbohydrate rich diet, it takes 12 to 24 hours to replenish the liver glycogen.  During training there could be a LA accumulation in the blood, which has a fatiguing effect on the athlete.  Before returning to a balanced resting state, the body has to remove LA from the systems, however this takes some time to achieve this: 10 minutes to remove 25%, 25 minutes to remove 50%, and 1 hour and 15 minutes to remove 95%.</p>
<p>An athlete can facilitate the normal biological process of LA by performing 15 to 20 minutes of light aerobic activity, as the benefit of movement and sweating will help in the elimination of LA and other metabolic residues.   Fitness level is another element that facilitates restoration of energy stores.  A good aerobic base can reduce the time necessary to replenish glycogen stores.</p>
<p><strong>* Please note that I took much of this information directly from the following two textbooks:</strong></p>
<p><strong>Essentials of Strength &amp; Conditioning, National Strength &amp; Conditioning Association, Thomas R. Baechle, Roger Earle, Second Edition, Human Kinetics, 2000</strong></p>
<p><strong>Strength Training, National Strength &amp; Conditioning Association, Lee E. Brown, Human Kinetics, 2007</strong></p>
<p>Jon Torerk, CSCS</p>
<p>(With the help of some of my college textbooks on this one, most of the material I post are from the top of my head and the little amount of memory that I still have added with a little research to make sure I’m correct.)</p>
<p><a class="a2a_dd a2a_target addtoany_share_save" href="http://www.addtoany.com/share_save#url=http%3A%2F%2Fwww.biomechanix.net%2F2011%2F05%2Fa-quick-breakdown-of-fast-and-slow-glycolysis%2F&amp;title=A%20Quick%20Breakdown%20of%20Fast%20and%20Slow%20Glycolysis" id="wpa2a_20"><img src="http://www.biomechanix.net/wp-content/plugins/add-to-any/share_save_171_16.png" width="171" height="16" alt="Share"/></a></p><img src="http://feeds.feedburner.com/~r/biomechanix/KJlp/~4/1NvCxDt62ms" height="1" width="1"/>]]></content:encoded>
			<wfw:commentRss>http://www.biomechanix.net/2011/05/a-quick-breakdown-of-fast-and-slow-glycolysis/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		<feedburner:origLink>http://www.biomechanix.net/2011/05/a-quick-breakdown-of-fast-and-slow-glycolysis/</feedburner:origLink></item>
	</channel>
</rss>

