1. Fitness Intensity
Endurance and strengh

2. What is intensity?
Intensity is the amount of physical power (expressed as a percentage of the maximal oxygen consumption) that the body uses when performing an activity. For example, exercise intensity defines how hard the body has to work to walk a mile in 20 minutes.

3. Target Heart Rate
In order to gain the most from a work out it is essential to try to maintain your target heart rate. The target heart rate is the number of heart beats per minute you should achieve while exercising. Each person’s target heart rate helps to determine their INTENSITY (fitness level) and by keeping their target heart rate in check a person is able to avoid under or over training, both of which severely effects the quality of the work out.

4. Under-training
Under-training happens when a person’s heart rate is too low which results in a low intensity work out. If a person is not working to their body’s potential, there is no way they can burn enough calories to result in weight loss nor can they get up the endurance to build strength. Individuals who under-train will take significantly longer to see the results they desire.

5. Over-training
Over-training can be just as dangerous. People who exceed their target heart rate are pushing themselves past their body’s fitness level, which can lead to injury and/or dehydration putting you at risk for dizziness and possible fainting. If a person consistently over-trains they are at risk for infection or chronic pain.

6. Properly Training
The best way to avoid under-training or over-training is to continuously monitor your heart rate throughout a work out. Start each work out with some form of cardio and work your way up to your target heart rate. The treadmill, elliptical and the bike are all great examples of how to do this and they often have a sensor that will determine your heart rate for you making it that much easier to track. Constant motion during a workout will keep your heart rate at the optimal level. One small adjustment to your workout that will help keep you moving and your heart rate up is to do a 3 set rotation of a few different exercises doing only one rep at a time. This way you break up reps by walking from one exercise to the next which keeps you active rather than pausing in place and allowing your heart rate to drop.

7. Kinds of Exercise
Aerobic = Needing large amounts of oxygen over an extended amount of time
Anaerobic = The demand of oxygen is more than the supply
Isometric = Tightening a muscle without moving
Isotonic = Muscles moving against resistance
Isokinetic = Using a machine to provide weight resistance during a full rage of motion

8. Low Intensity
Low intensity aerobic exercise does not cause changes in your breathing pattern and doesn't result in sweating, and you can carry on a conversation or sing a song while doing it.
Low Intensity = few than 120 beats per minute

9. Moderate Intensity
Moderate intensity aerobic exercise is when you're able to talk but unable to sing the words to a song.
Moderate Intensity = between 120 and 150 beats per minute

10. Vigorous Intensity
Vigorous intensity aerobic exercise is where you're breathing hard and fast and your heart rate has increased significantly.
Vigorous Intensity = more than 150 beats per minute