Exs Phys Lab Body Composition and Anaerobic Power

Risks

obesity and too little body fat

Obesity

mechanical stress on body, comorbidities, and reduces life expectancy

Too little body fat

found in individuals with eating disorders, exercise addiction, and certain disease, decrease in phospholipids (cell membrane formation), decrease in triglycerides (store metabolic fuel), menstrual. dysfunction in women, just as harmful as being obese

Methods for assessing body comp

hydrostatic weighing, air displacement plethysmography (ADP), dual energy x-ray absorptiometry (DEXA), skinfold measurements, bioelectrical impedance method (BIA), body mass index, waist to hip ratio

Anaerobic ability

the ability to perform short duration, very high intensity work bouts

Anaerobic relies on which energy systems to produce ATP?

ATP-PC and anaerobic glycolysis

What anaerobic pathways are used when performing the wingate test?

PCr system and Glycolytic system

Specificity with the wingate test

allows you to distinguish between athletes with predominately SO or FG fibers

Disadvantages to the wingate test

some feel 30 seconds is too short to accurately measure the anaerobic capacity and instead use a 60 or 90s test; the intensity is just too high for many people, thus the risk is too high

Peak power (PP)

greatest power produced in a 5 second period; reflects the power of the ATP-PC or phosphagen component of the anaerobic systems; typically occurs in first 5-8 seconds of test; expressed in absolute and relative terms

Mean power and anaerobic capacity (MP)

the average power produced throughout the entire test; reflects the ability to generate and sustain power for 30 seconds utilizing ATP-PC and anaerobic glycolysis; glycolytic pathway appears to be biggest contributor to this measure; PCr system still involved

Percent decline or fatigue index (FI)

percentage decline in power over 30 seconds; the greater FI the higher % FT fibers

Total work (J)

total work accomplished during the test