unit 1 quiz Flashcards
kinesiology
american kinesiology association defines kines as the academic discipline which involves the study of physical activity and its impact on health, society, and quality of life
scientifically study of human movement
areas of kines
physiological- how the body works; func
mechanical- heart failure occurs because there has been a mechanical change to the heart
psychological
what is sports medicine?
any professional associated with the medical and therapeutic aspect of sports participation and physical activity
physical fitness
ability of the body to adjust to demands and stresses of physical effort and is thought to be a measure of health
physical activity
any movement carried out by skeletal muscles requiring energy
branches of physical fitness
muscular strength
muscular endurance
cardiorespiratory endurance- heart and lungs work together
flexibility- neurological can be component of flexibility
body composition
psychomotor ability- athleticism; takes practice
components of fitness
strength
power
endurance
strength
ability of a muscle to do work
exerts a force against a resistance
muscles contract to move the skeletal system
concentric contraction
muscle shortens
eccentric contraction
lengthening contraction
isometric contraction
muscle stays same length, but force is still creatdd
power
ability to generate force quickly
speed or time is needed
endurance
ability to sustain force over time
someone with really good endurance can keep running
cardiorespiratory fitness
required oxygen to get to muscles
what can aerobic function be measured by?
VO2max
maximal rate of aerobic metabolism
dependent on muscular endurance but relies on the ability to deliver O2 to muscles
energy sources for muscle contraction
ATP
oxygen
glucose
fat-protein