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Ensure proper cellular function
- -Inspiration and expiration
- -In thoracic cavity
- Process of actively contracting inspiratory muscles to move air into body
- -Quiet breathing at normal rest
- Diaphragm, External intercostals
- -Heavy, deep, forced breathing
- Add Scalenes, Sternocleidomastoid, Pectoralis minor
- Process of actively or passively relaxing inspiratory muscles to move air out of body
- -Internal intercostals
Pressure relationship inside and outside
When Intrapulmonary pressure goes below Atmospheric pressure, air draws into lungs
- All structures before respiratory passageways
- -Nasal, oral, pharynx, larynx, trachea, bronchioles
- -Purify, humidify, and warm or cool
Bronchi, bronchioles, Alveoli, Alveolar sacs
Where O2 and CO2 and transported in and out of blood through diffusion
- Oxygen consumption
- -At rest 3.5 ml of oxygen per kilogram of bodyweight per minute (1 MET)
VO2= cardiac output (hrxsv) - a- v O2 (difference in O2 content between blood in arteries and blood in veins)
Highest rate of oxygen transport and utilization achieved at maximum physical exertion (11-23 METS)
Maximal testing not always practical for most clients so estimate using other methods every couple weeks or months.
Bodily function prolonged for 30 seconds or more. Requires oxygen.
Activities lasting less than 30 seconds. Doesn't require oxygen.
- The study of energy in the human body.
- -How chemical energy (food) is converted into mechanical energy (work)
During bioenergetics when chemical bonds are broken---energy is released to produce work (muscle contractions) -
Also called an Energy Utilizing Reaction
- Cellular structure that collects energy and stores it.
- -Delivers it to usage site
- -Adenine (a nitrogen based compound)
- -Ribose (a five carbon sugar)
- -3 Phosphates
3 Bioenergetic Pathways for ATP production
- Anaerobic: 1 ATP-CP pathway and 2 Glycolysis pathway
- Aerobic: 3 Oxidative pathway
All three together= Bioenergetic Continuum
ATP-CP Pathway (Phosphagen system)
- -Provides energy for high intensity, short duration activity. (power and strength)
- -Produces energy more rapidly than other two systems
- -Enzyme Myosin ATPase causes break off of one of phosphates of ATP= ADP (adenosine diphosphate). This creates energy