What factors affect performance? - ✔✔CNS function, strength/skill (practice), genetics
(body type, muscle fiber type), environment (altitude, heat,
... [Show More] humidity), energy production
(anaerobic sources [PC, glycolysis], aerobic sources [VO2 max, Q, O2 delivery, Hb,
PO2, O2 extraction, mitochondria]), diet (carbohydrate, H2O intake)
Who is A.V. Hill? - ✔✔From England, won Nobel Prize for measurement of heat
production during musc. contraction and recovery as well as measurement of O2
uptake. Developed the terms steady state exercise, VO2 max, O2 debt, and metabolic
efficiency.
Who is Otto Meyerhof? - ✔✔From Germany, won Nobel Prize for discovering the
relationship between O2 consumption and lactic acid
Who is August Krogh? - ✔✔From Denmark, won the Nobel Prize for key work in
capillary circ. and gas diffusion as well as study of gase exchange. Designed ex. phys.
instruments.
Lawrence Henderson - ✔✔Biochem. professor at Harvard Med. School, opened the
Harvard Fatigue Lab in the US in 1927.
D.B. Dill - ✔✔Scientific director of Harvard Fatigue Lab. for all 20 years of it being open
What did the autopsies of young soldiers from the Korean war show in the 1950s? -
✔✔Significant coronary artery disease had already developed
What is the AAPHERD Youth Fitness Test? - ✔✔It was developed in 1957 and used in
physical ed. programs throughout the nation. It established national norms.
During WWII, being underweight and small were the main reasons for being rejected
from the military. What are the main reasons for rejection today? - ✔✔Obesity
Why are people growing more and more interested in fitness today? - ✔✔The interest is
due to growing concern over the high death rates from diseases that are caused (in
part) by poor diet, lack of exercise, and smoking.
How do schools today measure fitness? - ✔✔Instead of traditional tests, schools today
use health-related fitness tests, like the skinfold est. of body fat.
Independent variable (IV) - ✔✔manipulated by researcher
Dependent variable (DV) - ✔✔changes as a function of the IV [Show Less]