584 Energy Conservation Joint Protection
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What are the two major components of Energy Conservation and Joint Protection?
- 1. Physiological Aspects
- 2. Biomechanical Aspects
What are the "unseen" considerations?
- physiological components
- -muscle fatigue levels
- -total body energy expended
The external forces which are applied to
a particular area. Items which would be included here would be gravity,
leverage, force required, torque, weight and time.
the pull exerted on all bodies within
the earth’s sphere
the action or mechanical power of a
lever. In the case of joint protection, this will refer to the leverage of
specific limbs and muscles
energy that causes or alters motion
a measure of the tendency of a force to
heaviness, specific gravity
measure, duration. The period during
which something exists or happens
the primary indicator of the functional capacity of the circulation to meet the
demands of physical activity
Output from the heart as with any pump, is determined by its rate of pumping (_____ ____) and the amount of blood ejected with each stroke (____ _____).
The result of many factors which are related to the specific demands of the
exercise that ultimately affects either contraction or excitation or both.
A significant reduction in glycogen is related to fatigue during submaximal exercise leading to _______ ______
In short-term maximal exercise, muscle fatigue is related to oxygen deficiency and increased ____ ______ concentrations
Staying power -- ability to maintain task
the preservation of physiological reserves
This 5 level classification system is based on the energy required by untrained men
and women performing different tasks
______ and _______ are 2 very important components in determining the difficulty of particular tasks, from an energy conservation point of view.
Intensity and duration
the factor distinguishing the manner in
which a specific work task is completed.
the factor distinguishing the length of
time it takes to complete the task
True or false?
How much you weigh will increase the # of mets for the activity
Refers more specifically to the
biomechanical forces which are involved in the performance of a task or work
What are the 5 components to be analysed for joint protection?
- 1.Joint positioning
- 2.Static or dynamic actions of muscle
- 3.Force, strength required and strength
- 4.Physical properties of the object(s)
- involved in the task
- 5.Necessity of the task
Avoid positions in the hands which cause ____ ________
Should you employ larger or smaller joints whenever possible?
Larger joints as they are stronger
Wrist position anything beyond ___ degree is bad
True or false?
Dynamic is better than static (eg. Lifting a weight not just holding a weight)
How to change the physical properties of the task or object (5)
- 1. Alter the weight
- 2. Alter size/grips
- 3. Alter ego
- 4. Alter frequency/rate
- 5. Modify work space
A way of avoiding fatigue by using common
Balance between rest and play. Not only do you pace the activities but also pace the rate at which you do them
Planning can help you prevent fatigue and overwork. It can also prevent disappointment at not having energy to participate in an activity that is more meaningful to you.
7 Tips for planning activities for energy conservation
- 1.Allow rest periods throughout the day
- 2.Be prepared to take a rest at any time, even in the middle of the task.
- 3. Break up larger tasks into manageable
- 4.Alternate heavy and light jobs.
- 5.Avoid standing, lifting and holding.
- 6. Avoid people, situations, and topics of
- conversation which may upset you, make you tense or angry.
- 7.Avoid working in very cold or hot temperatures.
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