Humans Energy Systems and Muscle Fibers

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Humans Energy Systems and Muscle Fibers

Energy Systems

Glycolysis

Also not endurance

Glucose

15 sec - 2 minutes

Lactic Acid Buildup

2 ATP molecules

Anaerobic lactic

10-15 sec

100m sprint

Creatine Phosphate

Powerful

Quick movement

No oxygen

1 ATP Molecule

Anaerobic Alactic

Aerobic

Cellular Respiration

Byproduct is Co2 and O2

Marathons

Endurance

Lots of oxygen

Oxygen is present

Myoglobin

Delivers oxygen to muscle

Proteins

Key Nutrients

Protiens

Repairs muscles

Builds muscles

Carbohydrates

Builds cell membranes

Provides quick energy

Most abundant energy

Sugars

Lactate Threshold

Lactic Acid Buildup in blood

VO2 Max

Max amount of O2

ATP

Energy currency

Used for fuel

Breaks down food

Energy for all living things

Adenosine Tri-phosphate

Muscle Fibre Types

Fast Twitch

Type 2B

Sprinting

Fastest

ATP-PC

Tire Quickley

Type 2A

Pale in colour

Anaerobic

Quick Contraction Speed

High Power

In between type 1 and type 2b

Moderate fatigue

Slow Twitch

Type 1

Better for Endurance

Maintain low energy levels for longer periods of time

Make energy slower then others

Red and darker in color

Diameter can increase with training

High in myoglobin