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Notes on video lecture:
Principles in Exercise Physiology
Notes taken by Edward Tanguay on March 21, 2018 (go to class or lectures)
Choose from these words to fill the blanks below:
respiratory, acidic, dilate, physical, heart, chest, oxygen, absorb, twins, individuality, marginally, stable, below, genetics, inactivity, magnitude, homeostasis, exercise, skeletal, predictable
•
underlying principles in the field of                  science
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provides the foundations that your body must make in response to the                  stress incurred during a single bout of exercise
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1. Homeostasis
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the tendency of the body to maintain a              internal environment for cells by narrowly regulating critical variables
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pH (acid/base balance)
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             tension
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blood glucose concentration
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body temperature
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any disruption to optimal homeostatic conditions will elicit multiple regulatory responses by the body in an attempt to bring disrupted variables back to normal
•
when you ascend a high altitude, due to the low oxygen pressure in the inspired air, oxygen levels in your body drop            desired levels
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as a result, your nervous, endocrine, cardiovascular, and                        systems make adjustments in an attempt to compensate for this disruption in homeostasis
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engaging in physical exercise is a very powerful and stressful disruptor of normal                       
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the more intense, the greater the disruption
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muscles and blood become more             
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blood oxygen and glucose levels must be regulated
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body temperature increases
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tissues that must respond
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brain
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lungs and repository system
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muscles
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kidney
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liver
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cardiovascular system
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           pumps more forcefully
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blood vessels must             
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nervous and endocrine systems regulate
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circulating hormones cause changes
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blood is directed away from the less critical tissues such as the stomach
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insure that the muscles are receiving adequate blood flow
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the homeostatic overload principle
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if you habitually overload a system, it will respond and adapt
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stress imposed illicits an immediate response referred to as an acute response
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if you exercise three to five times per week over months, the body will adjust long term to              the repeated stress of regular exercise, a process called chronic adaptation
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examples
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during acute exercise, the body reacts by producing mitochondrial biogenisis in skeletal muscle in order for the muscles to oxidate
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after weeks of being repeatedly activated, chronic adaptations are made in the pathways responsible for mitochondrial biogenisis thereby increasing their numbers, which leads to an increase in the oxidative capacity of                  muscle
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specificity principle
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only the system or body part repeatedly stressed will adapt to chronic overload
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when you do bench presses for weeks and months, only the            muscles recruited will show improvements in strength
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cardiovascular system is only                      recruited during strength training
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will show no long-term adaptations
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principle of reversibility
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whereas overloading will result in training adaptations,                      will result in a return to baseline
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a common way to express this is "use it or lose it"
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principle of                           
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while the physiological responses to a particular stimulus are largely                       , the precise responses and adaptations will vary among individuals
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we can predict the direction of adaptations, but he                    will likely differ
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mostly due to                  of the subjects in question
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the response of identical            would be more uniform than two unrelated individuals

Vocabulary:

homeostasis, n. the tendency of the body to maintain a stable internal environment for cells by narrowly regulating critical variables, e.g. pH (acid/base balance), oxygen tension, blood glucose concentration, and body temperature ⇒ "Any disruption to optimal homeostatic conditions will elicite multiple regulatory responses by the body in an attempt to bring disrupted variables back to normal, for example, when you ascend a high altitude, due to the low oxygen pressure in the inspired air, oxygen levels in your body drop below desired levels, and as a result, your nervous, endocrine, cardiovascular, and respitory systems make adjustments in an attempt to compensate for this disruption."

Spelling Corrections:

accend ⇒ ascend
illicits ⇒ elicits
respitory ⇒ respiratory

Ideas and Concepts:

Why we need to exercise regularly, via this morning's Science of Exercise course:

"The homeostatic overload principle states that if you habitually overload a system, it will respond and adapt.

The stress imposed on the body by physical exercise elicits an immediate reaction by the body referred to as an acute response.

However, if you exercise three to five times per week over months, the body will adjust long term to absorb the repeated stress of regular exercise, a process called chronic adaptation.

An example of this is during acute exercise, the body reacts by producing mitochondrial biogenesis in skeletal muscle in order for the muscles to oxidate.

After weeks of being repeatedly activated, chronic adaptations are made in the pathways responsible for mitochondrial biogenesis thereby increasing their numbers, which leads to an increase in the oxidative capacity of skeletal muscle."
Incentive to start running again, experienced in this evening's Science of Exercise course: "The principle of reversibility states that whereas overloading will result in training adaptations, inactivity will result in a return to baseline levels. Once the stimulus of regular exercise training has been removed, you will eventually lose any previous training adaptations. This means that when you stop training, your body tends to go back to previous levels of fitness, commonly known as:use it or lose it."
Principles in Exercise Physiology