- Frequency: In the physical fitness world, frequency means how often you perform a workout or exercise.
- Glycogen: This is a stored form of a sugar called glucose. When the body produces excessive amounts of glucose that cannot be used immediately for energy, it is stored in the liver. This substance is now called glycogen. When blood sugar levels begin to fall, the liver will release the stored glycogen to bring the levels back up to a normal reading.
- Heart rate: A heart rate refers to the amount of time your heart beats in 1 minute.
A normal resting heart rate for a healthy adult ranges from 60 to 100 beats a minute. Generally, a lower resting heart rate at rest implies more efficient heart function and better cardiovascular fitness. - Interval Training: Interval training is a method of exercise that combines short bursts of high intensity cardiovascular exercises with medial periods of lower intensity ones. The purpose of interval training is to burn the highest amount of calories in the shortest amount of time and build cardiovascular endurance.
- Isotonic: Isotonic is a term used to describe an exercise where the muscle has to work against a static (set) resistance through the entire range of motion. A good example of this is bicep curls or chest presses.
- Lactate: Blood lactation occurs when oxygen delivery to the muscle tissue is insufficient to sustain its metabolic demand, usually because of vigorous exercise. This can lead to a condition known as lactic acidosis, which can cause vomiting, anxiety and irregular heart rate.
Lactate Threshold: Although there is a large argument in the fitness community as to the true definition of lactate threshold, it is generally thought that this means the precise point during exercise where lactic acid begins to accumulate in the blood stream. - Lactic acid: Lactic acid is a byproduct of broken-down glucose. It was often thought that lactic acid is a waste product. However, scientists have proven that it is beneficial in providing the body with energy during exercise.
- Maximal Oxygen Uptake (VO2max): V02 Max refers to the maximum amount of oxygen you use during exercise, and is usually measured while running on the treadmill. It is generally used to measure the level of physical fitness and runners.
- Maximum heart rate: This is the highest heart rate an individual can obtain through exercise without causing detrimental effects to the heart.
- Oxygen Consumption: Oxygen consumption is related closely to VO2 Max, and refers to the amount of oxygen your body utilizes per minute during exercise.
- Repetitions (reps): How many times an exercise is performed. For example, when performing bicep curls, raising and then lowering the weight equals 1 rep.
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