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30 Cards in this Set

  • Front
  • Back
Slow twitch____________________ to reach peak
110 millisec
Slow twitch Innervates approx. _____ muscle fibers
100
Fast twitch ______ milliseconds to reach peak
50 millisec
Fast twitch Innervates approx. _____ muscle fibers
500
fast / slow twitch fiber distribution: Non athletes ___ % of each
47 - 50%
fast / slow twitch fiber distribution:Distance athletes ______ % slow twitch
70 - 80%
fast / slow twitch fiber distribution: Sprinters ___% slow twitch fibers
30 - 35%
Approximately _____ the human body is potential energy reserve.
1/2
A 65 kg person with 13% body fat could endure forced starvation for_____ days resting quietly
40-50 days
A 65 kg person with 13% body fat could endure forced starvation for _____ days of minimal activity
10 -12 days
Stored phosphocreatine Lasts less than _____ seconds
10 sec
Stored phosphocreatine (PC)
______X as much stored in muscle as ATP
3 X
Stored phosphocreatine Recovery: ____ full
3 min
Stored phosphocreatine Recovery: _____ 1/2 recovery
30 sec
Anaerobic Glycolysis Provides energy as long as stores remain: _______
20 seconds to 3 minutes
Anaerobic Glycolysis yields ___ ATP per glucose molecule.
2 ATP
Oxidative (Aerobic) production of ATP: About _____ mitchondria per cell - increased with training
300 mitchondria
_______ X more ATP per unit of glycogen as anaerobic (= _____ATP)
18 X = 36 ATP
The 3 “energy systems” 10s: Aerobic ____%, Anaerobic ____ %
10 %, 90%
The 3 “energy systems” 30s: Aerobic ____%, Anaerobic ____ %
20 %, 80%
The 3 “energy systems” 60s: Aerobic ____%, Anaerobic ____ %
30 %, 70%
The 3 “energy systems” 2m: Aerobic ____%, Anaerobic ____ %
40 %, 60%
The 3 “energy systems” 10m: Aerobic ____%, Anaerobic ____ %
85 %, 15%
The 3 “energy systems” 30m: Aerobic ____%, Anaerobic ____ %
95 %, 5%
Increases in aerobic system due to: Number, size & efficiency of mitochondria increased: up to ________%)
250%
Increases in aerobic system due to: Increase glycogen stores: up to ______%
200%
Increases in aerobic system due to: Capillaries increase: _____%
5-15%
Increases in aerobic system due to: Myoglobin increases: up to _______%
80%
Increases in aerobic system due to: Increased triglyceride (fat) stored in muscle cells (up to _____%) & increased use of fat.
150%
Products of Glycolysis: ____ ATP, ______ pyruvic acid, ______ lactic acid
2,2,2 molecules of each