Transcript Health Related Fitness

Health Related Fitness
Unit 7
Part 1: Cardiorespiratory Endurance
Cardiorespiratory Endurance
 The ability of your heart, blood vessels, lungs, and blood to
deliver oxygen and nutrients to all of your body’s cells while
you are being physically active.
 It is the single most important part of health-related fitness
 As your cardio endurance increases, your heart beats more
efficiently.
 An indicator of poor cardio endurance is running out of
breath while doing strenuous activity.
Balloon Activity
 At the start, the balloon is a like an un-exercised lung! It is
very hard to get air into it and hold.
 Just like a person who hasn’t exercised, their lungs do not
have the capacity to hold a lot of air.
 After trying several times to inflate the balloon, it became
easier right?
 Just as it was easier to inflate the balloon after several
attempts; the more you exercise, the amount of lung volume
increases.
Resting heart rate & Recovery
 Indicators of your level of cardio endurance.
 Resting Heart Rate (RHR) is the # of times the heart beats
per minute wile at rest.
 Recovery Time is the amount of time it takes for the heart to
return to RHR after strenuous activity,
 Good cardio endurance reduces recovery time and RHR.
Aerobic Activity
 Aerobic Activity tends to improve your cardio endurance.
 During Aerobic Activity, muscle cells use oxygen to produce
energy for movement.
 The intensity of aerobic exercise is low enough so that the heart,
lungs, blood vessels, and blood are all able to bring enough oxygen
to your muscles.
 This allows your heart and muscles to continue with the activity for a
long period of time.
 Aerobic activity is continuous, uses large muscle groups, and tends
to be rhythmic in nature.
 Examples include walking, jogging, dancing, swimming, cycling, and
jumping rope.
Health Related Fitness
Unit 7
Part 2: Muscular Strength and Endurance
Muscular Strength
 Muscles move and apply force to objects and to each other by
contracting.
 Muscular Strength is the amount of force that a muscle can
apply in a given contraction.
 Lifting a weight, climbing the stairs, and pushing a large piece of
furniture are acts of muscular strength.
 During weight (or resistance) training, muscles are
challenged to contract more than they are used to doing.
 The muscles cells themselves become larger in response to this
extra work.
 This growth increases the overall strength of the muscle.
Muscular Strength
 Most exercises that build muscular strength take place in the weight
room with heavy weights.
 Although the term "heavy" is subjective, loads that exhaust the muscle in
eight to 10 repetitions build strength by building more muscle mass,
while sets that exhaust the muscle in one to five repetitions build
strength through adaptations.
 Some examples of muscular strength exercises include squats, seated calf
raises, leg press, cable hip extensions, abdominal crunch machines,
weighted back extensions, bench press, dumbbell flies, lat pull downs
and kettlebell swings, as well as all powerlifting.
 Plyometric exercises, or explosive dynamic movements, such as depth
jumps, medicine ball throws, skipping drills and explosive lunges build
maximal muscle strength by improving the brain's communication
pathways.
Muscular Endurance
 Muscular Endurance is the ability of the muscles to keep
working (contract) over a period of time.
 Muscular Endurance allows you to carry out tasks that require
muscles to remain contracted for a period of time.
 Examples of sports: cross-country skiing and gymnastics.
Muscular Endurance
 You can use almost any exercise to build muscular endurance by using
high repetitions and light loads. Light weights, resistance bands or body
weight provide the resistance so that the muscles don't reach to the point
of failure.
 Good exercises for muscular endurance sets include abdominal
crunches, resistance band lat pulldowns, or machine and free-weight
exercises with very light loads.
 Depending on fitness and body size, a body-weight exercise such as pullups may be a muscular endurance exercise for one individual and a
strength exercise for another.
 A muscular endurance workout might involve a high target number of
repetitions, for instance, 50 squats.You can also use a time target for a
muscular endurance workout, fitting as many repetitions as possible into
a certain period of time.
Muscular Strength/Endurance
 They are closely related: As one improves the other




improves.
Both are strength and endurance can be developed by regular
weight training.
Weight training is considered to be an anaerobic activity.
During anaerobic activity, muscle cells produce energy
without using oxygen.
It is usually intense and short in duration.
Muscular Strength/Endurance
Exercises
Muscular Strength
Muscular Endurance
 Station 1: Medicine Ball
 Station 1: Resistance Bands
Throws with partner
 Station 2: Dumbbell Flies
(set of 8 and break)
 Station 3: Squats with bar
(set of 8 and break)
 Station 4: Dumbbell
Swings (set of 8 and break)
lat Pull-down
 Station 2: Power Jacks
 Station 3: Power Ups
 Station 4: Planks
 Each station 1 minute!
Muscular Strength/Endurance Tracking
Sheet
MS:
Medicine
Ball
MS:
Dumbbell
Flies
MS:
Squats
MS:
Dumbbell
Swings
ME:
Resistant
Bands
ME:
Power
Jacks
ME:
Power
Ups
ME:
Planks
Unit 7: Health Related Fitness
Part 3: Flexibility
Flexibility
 Flexibility is the ability of the joints to move through their full
range of motion.
 Good flexibility keeps joint movements smooth and efficient.
 Strong and healthy ligaments and tendons allow greater flexibility
of a joint.
 Ligaments are the tissues that hold bones together at a joint.
 ACL and MCL are types of ligaments.
 Tendons are the tissues that hold muscles to bones.
 Achilles tendon
 Any activity that involves a joint moving through a full range of
motion will help maintain flexibility.
 Stretching exercises (when done correctly) help flexibility.
Flexibility
 Having good flexibility alone is not the most important
component of physical fitness.
 However, keeping a good level of flexibility is important
because lack of use can cause joints to become stiffer as you
become older.
 Together with muscular strength and muscular endurance,
flexibility is very important for overall fitness.
 These 3 components promote the health of bones and
muscles.
Unit 7: Health Related Fitness
Part 4: Body Composition
Body Composition
 Body Composition refers to the ratio of lean body tissue
(muscle and bone) to body-fat tissue.
 A healthy bone has a high proportion of lead body tissue
compared to body-fat tissue.
 Women naturally have more body fat than mend do.
 Also, body fat increases with age as muscle mass decreases.
Body Comp.
 Having a certain amount of fat is necessary for good health.
 However, too much body fat increases the risk of getting certain
lifestyle-related diseases.
 Such as diabetes and cardiovascular disease.
 Excess body fat is almost always due to being inactive as well as
having poor eating habits.
 Due to stress of excess weight on the joints, people who have excess
body fat are more likely to have back problems or joint problems.
 Regular exercise and good eating habits are the best ways to develop
a favorable body composition.