body mechanics education presented by: [name]. overview a. basic anatomy b. muscle length tension...
TRANSCRIPT
Body Mechanics Education
Presented by: [name]
OverviewA. Basic Anatomy
B. Muscle Length Tension Curve
C. Proper Lifting Techniques
D. Golfer’s Maneuver
E. Sit/Stand/Lie
F. Lifting Belts
G. Activities of Daily Living
Ligaments
Bones/Joints
Back Discs
Nerves
Movement
Back Muscles
How do we move?
Muscles
From base of skull to tailbone region.
Some straight up and down. Some in a diagonal fashion. Are primary movers of
lower back.
Ligaments Support structure of the body’s joints.
Prevent two bones from separating.
Still allow appropriate mobility.
Bones/Joints Vertebrae.
One vertebrae meets another - 2 facet joints.
This is where back movement occurs.
Back Discs Hard outer shell – fluid nucleus. Bending forward fluid tends to go
backward. Bending backward fluid tends to go
forward.
Nerves Originate in the brain. Go down to the toes. Carry messages from brain to rest of
body. Allowing movement, sensation, reflexes,
etc.
Any muscle in the body, when it is in a stretched position, is not able to exert as much force.If a muscle is a shortened position, again, it is not able to exert as much force.Muscles are designed to function optimally when at a specific length.
Muscle Length Tension Curve
When we bend forward at the waist, we are putting some of our lower back muscles on stretch resulting in an inability of these muscles to generate a lot of force.When we twist at the spine, we are putting additional muscles in a position of stretch.
Muscle Length Tension Curve
Often we put these muscles on stretch before we perform a lifting activity resulting in a high level of vulnerability.The muscles in the lower back were designed to function optimally with the lower back in a neutral (straight) position.
Muscle Length Tension Curve
Proper Lifting Techniques
Above shoulder lifting.Above shoulder lifting. Floor level lifting.Floor level lifting. Mid level lift.Mid level lift. Push/pull.Push/pull.
Golfer’s ManeuverThis is a maneuver when the surroundings is such that perfect body mechanics cannot be usedBy extending one hip it helps to maintain the lumbar spine in a more neutral position, therefore creating the actual flexion at the hip rather than the lower back.This allows the muscles to maintain a neutral position, therefore taking advantage of the muscle length tension curve.
Sitting Maintaining lumbar lordosis. Maintaining feet on ground. Proper lower back position. Mini breaks.
Standing Increased lordosis will cause facet
pain Pelvic Tilting One foot up helps reduce lumbar
spine. Mini breaks.
Lying Correct head positioning is
important
Improper positioning - ramifications.
How to use a pillow.
Why use lifting belts?
Helps stabilize the lumbar spine.
Muscles continue to work.
Reminds of proper positioning.
Points to considerWhen wearing a lifting belt:Utilization of proper lifting techniquesProper fittingErgonomics of workplace
Activities of Daily Living
Doing the dishesSweeping/vacuumingGetting in and out of bedMowing the lawnDressing
Brushing teeth
Child careMaking the
bedGetting things
out of the trunkDriving a carLaundry
The End
Any Questions??