WELLNESS is your overall physical and mental
well-being.
The
components of health related fitness are:
cardio-respiratory endurance
muscular strength and endurance
flexibility
body composition
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CARDIO-RESPIRATORY ENDURANCE
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Energy is defined as your capacity to do
work. When you exercise, your muscles
need a large amount of oxygenated blood to produce energy. Your heart has to beat faster and harder to
pump the blood carrying oxygen to the areas where it is needed most. Energy for your body is produced through
chemical reactions.
A chemical
reaction that does not require oxygen is called ANAEROBIC. Activities that require an explosive amount
of energy for a short period are anaerobic.
A chemical
reaction that requires oxygen is called AEROBIC. An exercise is aerobic if it uses large muscles for a long
period of time with a steady intake of oxygen.
The best fuel to produce energy is oxygen.
STROKE
VOLUME is the
amount of blood the left ventricle pumps out each time it beats. If you are physically fit, you will have a
greater stroke volume than you would if you were not fit. Therefore, you will have a greater amount of
oxygen to produce energy. Endurance
training increases your stroke volume.
Maximum
oxygen consumption
is the greatest volume of oxygen used by your cells per minute per kilogram of
body weight during strenuous exercise.
A physically fit person will consume more oxygen and use it more
effectively per kilogram during exercise than a non-fit person.
OVERLOAD PRINCIPLE
You must
place a greater than normal physical demand on your body to achieve and
maintain fitness. This is the overload
principle.
Your target
heart rate zone is a measure of intensity.
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TARGET HEART RATE ZONE
CHART |
Resting
Heart
Age
Rate 60% 80% 85%
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13 |
72 |
153 |
185 |
186 |
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14 |
70 |
152 |
179 |
185 |
FITT
If you
apply all of the principle of FITT to your individual fitness program,
you will improve and maintain your physical fitness level. An example of FIT for cardio-respiratory
endurance would look like this:
F = four days a week
I = at heart rate of 155 bpm
T = for 15 minutes
T =
jog
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MUSCULAR STRENGTH AND ENDURANCE
Muscular
strength describes
how much force a muscle can exert over a short period. Sprinters who run short, fast races have
muscular strength, as do weight lifters who can lift an extremely heavy weight.
Muscular
endurance describes
how long a muscle can produce the force without becoming excessively
fatigued. Can you run a long distance
without getting tired? Can you lift a
light weight many times without stopping?
Can you ride your bike a long distance without stopping or tiring?
Good
muscular strength and endurance allow your body to function efficiently and
safely. They decrease your risk of
developing low back problems, poor posture, and other injuries. One way to develop muscular strength and
endurance is to create an increased demand on the muscles through a weight
training program. You should be careful
not to lift very heavy weights while training.
Your bone growth plates have not yet been fully developed, therefore it
is better to train with lighter weights and more repetitions.
An
application of the FIT principle is:
F = Every other day
I = Ten to fifteen
repetitions
T = 1 set (level 1), 2 sets (level 2), 3 sets (level 3)
When you
can lift a weight for three sets of 10 to 15 repetitions, you should progress
to a slightly heavier weight. Increase
the amount of weight gradually in order to overload the muscle. This is called PROGRESSION.
If you want
to strengthen your arms, you have to lift weights that work on your arms by
targeting those muscles. Targeting
certain muscles for strength training is called SPECIFICITY.
MUSCULAR STRENGTH EXERCISES
Curl-ups
(Abdominals)
Do not arch your back as you pull up or pull on your head or
neck.
Modified
Pull-ups (Shoulders and Arms)
Keep your body straight and heels on the floor.
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Push-ups
(Arms and Chest)
Modified--on knees, beginning level
Regulation
Elevated feet--advanced level
Bench
Press (Chest, Shoulders, Arms)
Keep knees bent and feet on bench.
Bent Arm
Laterals (Flys) (Chest, Shoulders, Arms)
Keep knees bent and feet on bench.
Front
Curl (Biceps)
Upright
Rowing (Shoulders)
Tricep
Pushdown (Triceps)
Tricep
Extension (Triceps)
Leg
Extensions (Quadriceps)
Leg
Curls (Hamstrings)
Leg
Presses (Quadriceps, Hamstrings, Gluteals)
Adduction
(Inner thighs = adductors)
Abduction
(Outer thighs = abductors)
Standing
Bent Over Rowing (Mid Back)
Wall Sit
(Quadriceps)
FLEXIBILITY
Flexibility is the ability of joints to move through their full
range of motion. In order to accomplish
this, your muscles must be stretched.
Flexibility will decrease with age if you do not stay active and
continue to stretch. Stretching is the
best way to improve your flexibility. Static
stretching is the best type of stretching.
Slowly stretch a muscle until you feel tension without pain. Hold the stretch, without moving, for at
least 15 seconds.
Apply the
principle of FITT to your flexibility program:
F = Stretch daily or at least 3 days per week
I = Stretch to the
tension point without pain for 15-20 seconds
T = Do 3 sets of exercises
T = Stretch various muscle groups
BODY COMPOSITION
Your body
consists of bone, muscle, and fat. All
three of these combine to make up your body weight. Your body weight is divided into lean body mass and fat body
mass. Lean body mass includes your
bones, muscle tissue, tendons, and ligaments.
Fat body mass is the fat that is stored in your body. You should be more concerned with your body
fat percentage than your total weight.
Fat tissue
is less dense and lighter than lean tissue.
Individuals who have excess amounts of fat also have a lower level of
physical fitness. Fat tissue has about
2 to 3 miles of blood vessels per 1 pound of fat. Extra stress is placed on the heart as it pumps blood through the
extra blood vessels.