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ErgoAwareness 062007

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Information about ErgoAwareness 062007
Education

Published on March 5, 2008

Author: Sever

Source: authorstream.com

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ERGONOMICS From the HUMAN point of view:  ERGONOMICS From the HUMAN point of view Petti Redding, OTR Look Familiar?:  Look Familiar? What is Ergonomics?:  What is Ergonomics? The Science of matching the demands of the job (physical, mental and environmental) to the worker. (Generally, the focus is on “the stuff”) Job Demands = Physical Capacity If they don’t equal, you get PAIN!:  Job Demands = Physical Capacity If they don’t equal, you get PAIN! Job Demands:  Job Demands 24/7/365 days a year… as we only have 1 body to do our “at work, on the weekend, in the evening, on vacation, etc…tasks.” So the state of our bodies relates to how we feel not only at work, but all other times as well. Physical Capacity:  Physical Capacity Strength (core vs. extremity) Endurance (muscles work w/o fatigue) Range of motion (how the joints move) Postural balance (THINK OF IT AS STRUCTURAL INTEGRITY OF THE BODY) To do this, we::  To do this, we: JOB DEMANDS Evaluate tasks Evaluate workstations Evaluate behaviors Make changes PHYSICAL CAPACITY Increase activity level Decrease stress levels Increase frequency of stretch breaks (No one does that, do they?) CTD, RSI, MSD? What do they all mean?:  CTD, RSI, MSD? What do they all mean? Damage occurring on a daily basis BEFORE you experience PAIN! The way you use your body day after day, (good or bad) to accomplish a task Includes the POSTURE and BEHAVIOR to do that task Includes work AND home tasks And you’ll try to blame it on the pillow! (or mattress or stress or…) Slide9:  Priority 3 Priority 1 Priority 2 *Pain Level of Tissue Damage Note: * Persistent pain that affects the quality of life for the individual and requires medical intervention Medical Intervention Low Medium High Persistent Dysfunctional Partial Disability Total Disability Behavior/workstation intervention Discomfort Tissue damage occurs BEFORE you feel PAIN! No Pain PAIN!!! Common Underlying Causes of CTD’s :  Common Underlying Causes of CTD’s Static Contractions leads to… Trigger Points leads to… Non-neutral,unbalanced postures that may lead to… Nerve entrapments and nerve damage and joint imbalance that may lead to arthritic joints But all have a common beginning ... LACK OF BLOOD FLOW… LEADING TO LACK OF OXYGEN Static Vs. Dynamic Muscle Contractions:  Static Vs. Dynamic Muscle Contractions With a static contraction of 60% of maximum, there is no blood flow to the muscle contracting. Principle Causes of Static Contractions:  Principle Causes of Static Contractions Poor posture from muscle imbalance, holding body in a non-neutral position Holding a position for an extended period of time Increased stress levels due to the autonomic nervous system response Statically held positions lead to Trigger Point Formation:  Statically held positions lead to Trigger Point Formation Decreased blood flow leads to ischemic (without oxygen) tissue changes Death of healthy tissue, and trigger point formation ( fibrous adhesions) begin. Pain cycle begins … usually at a referred pain area Levator Scapula muscle and trigger points :  Levator Scapula muscle and trigger points Scalene trigger points and muscle:  Scalene trigger points and muscle The Primary Culprit… Sitting!:  The Primary Culprit… Sitting! Good sitting results in “S” posture, w/ all joints in neutral alignment and muscles relaxed Bad sitting results in “C” posture w/ muscles held statically, non neutral joints and dysfunction happening slowly, over time. “C” curve VS “S” curve:  “C” curve VS “S” curve The bowling ball principle:  The bowling ball principle Balanced ball on platform and rigid structure Unbalanced ball falling off Platform and rigid structure The body adapts to the position we put it in :  The body adapts to the position we put it in What is neutral position? And why does it matter?:  What is neutral position? And why does it matter? Balanced position between 2 motions Most blood flow/least soft tissue damage (tendons, muscles, discs, nerves) BUT… the body adapts to the position we put it in Slide21:  Typical, dysfunctional postures leading to musculo-skeletal pain,vertebral dysfunction, arthritic conditions, etc. Joint function/dysfunction (all):  Joint function/dysfunction (all) Oiling system only works w/ movement Muscle imbalance creates less surface contact More wear/tear on less surface area Body can’t keep up w/ repairs Carpal Tunnel Syndrome … :  Carpal Tunnel Syndrome … Is entrapment of the median nerve at the wrist, NOT a general overuse syndrome causes numbness and tingling at the thumb, index, long and 1/2 the ring finger, on the palm side of the hand Causes weakness in the muscles of the thumb IS THE MOST MIS-DIAGNOSED DIAGN0SIS The Median Nerve at the wrist:  The Median Nerve at the wrist Nerves of the Upper Extremity:  Nerves of the Upper Extremity All these nerves…:  All these nerves… Come from here, and here is generally the problem!:  Come from here, and here is generally the problem! Brachial Plexus The 5 nerve roots in the neck that supply all the upper extremity, chest, shoulder and upper back. “The Squeeze”:  “The Squeeze” The scalene and pectoralis minor muscles at the side of the neck put the squeeze on the nerves and artery, decreasing blood flow and nerve supply. (nerve entrapment) ‘’What does that have to do with a pain in my hand?’’:  ‘’What does that have to do with a pain in my hand?’’ The nerve begins at the neck, but ends at the hand Relationship of Stress and Pain:  Relationship of Stress and Pain The Autonomic Nervous System ( our body’s automatic pilot system) Controls: breathing pulse rate blood pressure muscle tone Stress and the Fight or Flight Response:  Stress and the Fight or Flight Response The body does not know the difference between physical danger and mental stress! All automatic pilot systems perceive danger and gear up to run or fight including: Increased blood pressure Increased heart rate Tense muscles Heightened awareness Physical danger is episodic! You run, or fight and there is a pressure release mechanism then all systems return to normal:  Physical danger is episodic! You run, or fight and there is a pressure release mechanism then all systems return to normal With chronic mental stress, there is no one to fight or run from! And it just keeps coming!!!!:  With chronic mental stress, there is no one to fight or run from! And it just keeps coming!!!! So give yourself your very own pressure release valve…:  So give yourself your very own pressure release valve… Slide36:  The dreaded “E”word Exercise Your Choice? UP or DOWN :  Your Choice? UP or DOWN The Upward Spiral …the more active, the better you feel, and the more energy you have; so the more you do... The Downward Spiral …the less active you are, the less energy you have and the worse you feel, so the less you do... Who’s responsibility is it, anyway? (or… You want me to change?):  Who’s responsibility is it, anyway? (or… You want me to change?) These changes are for your benefit… more energy less pain able to work and play without hurting Decreased chance of developing RSI’s and , the best of all, YOUNGER LOOKING! But… It’s YOUR choice Why Report Early?:  Why Report Early? Pain/discomfort doesn’t go away by itself You must change the behavior that is causing the pain/discomfort Getting early help means SOLVING the PROBLEM AT ITS ROOT CAUSE! DON’T BE AFRAID TO GET HELP! IT’S YOUR BODY AND YOUR HEALTH! The Solution To Overuse Injuries:  The Solution To Overuse Injuries Early reporting of discomfort Personal responsibility to make changes in behavior and posture GET PHYSICALLY ACTIVE! (The more blood flow, the less the damage to your body) Just remember, they haven’t perfected cloning!:  Just remember, they haven’t perfected cloning! Thank you, The Redding Group

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