Chapter_7_Notes_Part_1_Cardiovascular_Fitness

Chapter_7_Notes_Part - Physiological Changes Health Related Physical Fitness Chapter 7 Part 1 Cardiovascular Endurance Click to edit Master

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Click to edit Master subtitle style Physiological Changes: Health  Related Physical Fitness Chapter 7 – Part 1 Cardiovascular Endurance
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Maintaining an active lifestyle is  linked to good health
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Are children and adults less active today? Are children and adults more overweight/  obese today? Is there a physical activity ~ health link? Fitness components : 1. Cardiovascular endurance 2. Body composition 3. Flexibility
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Cardiovascular Fitness A form of muscular endurance – but related to heart  and cardiovascular system Efficiency of the heart, lungs, and vascular system in  delivering oxygen to working tissue The body’s ability to deliver oxygen to the muscle is  affected by Heart rate
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Cardiovascular Fitness:  Heart Rate (HR) The number of times the heart beats each  minute (bpm) Changes over the lifespan Fetal HR is rapid and irregular Birth HR is below fetal level with periods of  bradycardia (slow heart rate – HR <60 bpm) 120- 140 bpm
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Cardiovascular Fitness:  Heart Rate Children's HR  1 year ~ 80-100 bpm  HR will continue to decline at rest until  adolescence Adolescence Male ~ 57-60 bpm Female ~ 62-63 bpm 
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Cardiovascular Fitness:  Heart Rate There is a decline in HR  with age Researchers believe the  decline in HR with age is  due to a decrease in  myocardial (heart)  sensitivity to  catecholamines (functions as neurotransmitters and/ Changes over the lifespan -Overall, resting HR declines by  50% from birth to maturity -Adulthood -Average ~75-79 bpm
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Cardiovascular Fitness:  Heart Rate Maximal HR declines with maturity To predict maximal HR 220 – age = HR max (simple prediction formula) HR max = 195-220 bpm
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This note was uploaded on 04/12/2010 for the course KIN 4512 taught by Professor Reeve during the Spring '09 term at LSU.

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Chapter_7_Notes_Part - Physiological Changes Health Related Physical Fitness Chapter 7 Part 1 Cardiovascular Endurance Click to edit Master

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