Introduction Flashcards
Acute
A single bout of stress or exercise resulting in an expenditure of energy proportional to muscular work
Exercise physiology
The science of how the body responds to acute & chronic exercise
Chronic
Repeating acute bouts of stress/exercise (over time) resulting in some functional adaptation
Strength
Maximum force a muscle or muscle group can generate at a defined velocity
Muscular power
MUSCULAR POWER is the maximum ability of the muscle or muscle group to generate force as quickly as possible
ENERGY SYSTEM POWER is the maximum rate of energy generating pathways
*maximal strength and power rely on anaerobic energy sources
Wingate cycle sprint test: measures an athletes AnCAP: max amount of work that can be done anaerobically
Aerobic capacity
The total amount of work that can be done aerobically
Anaerobic threshold test: measures the upper limit to perform prolonged continuous exercise using predominantly aerobic energy support.
Anaerobic threshold is the phase during graded exercise where glycolytic energy supply accelerates to assists with total energy supply for exercise
Sub maximal
Provision of energy that requires less than maximal effort
EX: 70% of VO2 MAX or less than anaerobic threshold intensities
Steady State
Usually refers to submaximal exercise during which physiological variables remain stable, thus at a ‘steady state’
Components of exercise
Duration: length of time the exercise is performed
(Per session or per program)
Intensity: level of peripheral (muscular) or central (cardiorespiratory) activity that can be attained voluntary or involuntary
Frequency: days per week, number of reps
Intermittent vs continuous:
Intermittent: work to rest ratios
Continuous: non-stop exercise for a period of time
Selecting an ergometer for use
Valid: allows for calculations of work and power
Reliable: allows for inter-tester & intra-tester reliability
Specific: to the exercise and group you wish to asses
Safety and practical considerations are also important
