Week 10 Flashcards
body composition is the result of
exercise
reasons to assess body composition
- strong association between obesity and disease risk
- low levels of fat detrimental to health
- establish optimal BC for health and performance athletes
- formulation of dietary guidelines
- monitor changes in BC with growth/maturation/aging
evaluation methods of body composition
- skinfold measurements
- hydrostatic weighing
- DEXA
- bioelectrical impedance
gold standard of measuring BC
- hydrostatic weighing
- DEXA
BMI is
not useful in individual assessment because we dont take muscularity/bone density into consideration
fat storage association with chronic disease
is non-essential visceral adipose tissue, deep to the abdomen
- associated with type2 diabetes, heart disease, hypertension
being fat and exercising makes you
have less health risks than a skinny person who doesnt exercise
HAES
health at every size
- it is not weight that determines health, it is bodily fitness no matter the weight
there is no body composition
exercise, to improve BC you must exercise/diet
Obesity effects
- leptin resistance
- cardiovascular disease
- increase insulin resistance
- secretion of inflammatory cyotkines
- mechanical stress on joints
energy balance equation (EBE)
change in energy stores = energy intake - energy expenditure
energy intake and energy expenditure are
dependant variables, it is more complex than just two independant characteristics
calories should not be considered equal, it is the
quality of those calories, the type of nutrient and the overall nutrient balance that is important
Basal metabolic rate definition
minimum level of energy required to sustain the bodies vital functions
thermic effect of food definition
the energy used to digest food
high power outputs elicit different
hormonal responses than steady-state low power outputs
- high power outputs = lose more fat & calories
intense exercises increases
metaebolic rate for hours after exercise
combonation of anaerobic and aerobic activities results in
faster fat loss than individually
the phosphagen system details
energy for all activities of short duration (8-10sec) in which speed and power are primary objectives
the glycolytic system details
energy for high intensity activities of prolonged duration (20sec-120sec)
oxidative (aerobic) system definition
energy at about the 1 minute mark and increases past the 3 minute mark for many hours
greater aerobic fitness means
you can exercise longer at a higher intensity
greater anaerobic fitness means
you can perform longer above your LT2 threshhold
periodization is a
logical and phasic method of manipulating training variables to increase the potential for specific performance goals