do now list as many reasons you can think of as to why flexibility is an important components of...
TRANSCRIPT
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Do Now
List as many reasons you can think of as to why flexibility is an important components of health related fitness
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CHAPTER SIXFLEXIBILITY
The rubber band theory applies to each of us; we will be no good until stretched.
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Objectives
How is joint movement limited?
Why is flexibility important?
What is the difference between static stretching and dynamic stretching?
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Chapter 6 Vocabulary
point at which 2 bones come together
strong, fibrous tissue which attaches one bone to another
meaty tissue surrounding bones
soft tissues that anchor muscles to bones
slowly moving a muscle to its stretching point and holding the position for 15 seconds
stretching done in continuous, slow, and controlled manner
joint—
ligament—
muscle—
tendon—
static stretching—
dynamic stretching—
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Vocabulary
stretching that involves bobbing, bouncing or jerky movements which use the body's momentum
form of stretching in which a partner pushes the body beyond the initial limit
isostatic stretching—
ballistic stretching—
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What Is Flexibility?
The ability to move body joints through a full range of motion.
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Joints of the Human Body
Point at which 2 bones come together
Types Pivot-permits a rotating motion (neck) Gliding-allows bones to slide over one
another (wrist and ankle) Hinge-permit a back and forth motion
(elbow, knee) Ball and socket-allows movement in
many different directions (hip and shoulder)
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Examples of Types of Joints
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Joint Movement Direction is limited by bone structure and
can’t be modified
Range of motion is limited by soft tissue and is modifiable through flexibility exercises
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What Limits Flexibility?
Ligament — strong fibrous tissue that attaches one bone to another
Muscle — meaty tissue surrounding bones
Tendon — anchors muscle to bone
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Why Is Flexibility Important? To Live a healthy and functional life
Loss of flexibility occurs gradually
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Why Is Flexibility Important? Needed in daily living
Reduces chance of injury-a lack of flexibility can result in joint or muscle injury during exercise or daily activities
Prevent post pain exercise –by warming-up and cooling-down sessions
Increases capacity of joint to move
Helps relieve muscle soreness-relaxes tense muscles
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Why Is Flexibility Important?
Helps reduce chance of developing low back pain-reduces aches and prevents low back problems in adulthood
Helps relax muscle tightness from injury, fatigue, and emotional tension
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Safety Precautions and Injury Prevention
• Avoid ballistic stretching
• Avoid Using partners
• Avoid increasing drastically (must be gradually)
• Avoid imitating stretching ability of others
• Stretch all major muscle groups to include opposing muscle groups
• Include flexibility with cardio and muscular strength and endurance programs to avoid
muscle imbalance
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Harmful Stretching Positions
* Head circles
* Arm circles
* Plow
* Sitting Quadriceps stretch
* Four-count toe touch
* Hurdle stretch
* Deep knee bends
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Types of Stretches
Static Involves slowly moving the muscles to its
stretching point & holding this position for 15-30 seconds
Dynamic Similar to static, is done in continuous, slow
& controlled manner
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Types of streches
Ballistic Involves bobbing, bouncing or jerky
movements that use the body's momentum Sometimes harmful because you exceed
the muscles stretching point Prioceptive Neuromuscular Facilitation
(PNF) Based on contract & relax techniques Require the help of another person
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Principle of Specificity
Stretching exercises will improve flexibility only in joints exercised
Flexibility is specific to each:
1. Individual 2. Joint 3. Sport
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Do Now
Unscramble the following words:1. seiotyb __ __ __ __ __ __ __
2. rehat trae __ __ __ __ __ /__ __ __ __
3. lspue __ __ __ __ __
4. ibaroec __ __ __ __ __ __ __
5. odbol eserpsru __ __ __ __ __/__ __ __ __ __ __ __ __
O b e s i t y
H e a r t R a t e
P u l s e
A e r o b i c
B l o o d P r e s s u r e
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CARDIOVASCULAR FITNESS
Chapter 7
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Chapter 7 Vocabulary
caused by pressure of blood on an artery wall; corresponds to heart beat
heart rate just after waking in the morning, before getting out of bed
heart rate after exercise
measure of blood force against the walls of the arteries
condition in which fatty deposits build up on inner walls of arteries, causing narrowing of the arterial passageway
pulse—
resting heart rate—
recovery heart rate—
blood pressure—
atherosclerosis—
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Vocabulary
heart rate that should not be exceeded during exercise; found by subtracting one's age from 22060 to 90 percent of the maximum heart rate; results in greatest cardiovascular benefits from exercise“with oxygen;” term refers to energy-producing biochemical pathways in cells that use oxygen to produce energy“without oxygen;” term refers to energy producing biochemical pathways in cells that do not require oxygen to produce energy
maximum heart rate—
target heart rate—
aerobic—
anaerobic—
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Cardiovascular Fitness
A. Respiratory SystemA. Lungs
A. Increase need for oxygen
B. Cardiovascular SystemA. Heart, blood, and blood vessels
A. Increase in heart rate
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Cardiovascular Fitness
Holds up to ~ 12 pints blood Chambers of the heart (Left ventricle
forces blood through arteries, Right pumps returning blood to lungs
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Why Is Cardiovascular Fitness Important?
Increases energy level
Look good
Ability to provide oxygen continuously to working muscles over an extended time
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Monitoring the Heart Heart rate is affected by
position activity level body size
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Taking Pulse/ Resting Heart Rate/ Recovery Heart Rate
Pulse – pressure of the blood on the artery wall, corresponding to your heart beat
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Taking pulse – wrist and neck
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Average Heart RatesElderly• ~ 50 – 65 BPM
Adult Males• ~ 70 BPM
Adult Females• ~ 75-80 BPM
Children• ~ 100 BPM
Newborns• ~ 140 BPM
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Blood Pressure
Systolic• When the
heart beats
Diastolic• When the
heart is relaxed
• The measure of force against the walls of the arteries
• Normal Range: 120
80
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Blood Pressure
One hour 60 BPM times 60 mins = 3600 beats 80 BPM times 60 mins = 4800 beat
Difference of 1200 beats
One day 60 BPM times 1440 mins = 86400 beats 80 BPM times 1440 mins = 115200 beats
Difference of 28800
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Blood Pressure RecommendationsBlood Pressure
CategorySystolic
mm Hg (upper #)
Diastolicmm Hg (lower #)
Normal less than 120 and less than 80
Prehypertension 120 – 139 or 80 – 89
High Blood Pressure(Hypertension) Stage
1140 – 159 or 90 – 99
High Blood Pressure(Hypertension) Stage
2160 or higher or 100 or higher
Hypertensive Crisis(Emergency care
needed)Higher than 180 or Higher than 110
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Resting Heart Rate
Should be taken in the morning before getting out of bed
While in a sitting or lying position AHA has established that between 60 –
100 BPM are normal However, people with RHR over 70 have a
greater risk of heart attacks
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Recovery Heart Rate
The amount of time it takes your heart to return to a normal rate
Should drop to ~120 BPM in 5 minutes after the workout session Then ~100 BPM in 10 minutes
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TARGET HEART RATE (THR)THR zone - to obtain greatest cardiovascular benefits
THR is a desired level of intensity
Two formulas to determine THR range
Percent of Maximum heart rate (60% to 90 %)
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Maximum Heart Rate
220 – your age= Max Heart Rate
220 – 16= 204 beats per minute
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Target Heart Rate Formula
Safe Low End
• (220-age) x 60% = Lower Limit
• (220-16) x 60% = Lower Limit
• (204) x 60 % = Lower Limit
• 122.4
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Target Heart Rate Formula
Safe High End
• (220-age) x 90% = Upper Limit
• (220-16) x 90% = Upper Limit
• (204) x 90 % = Upper Limit
• 183.6
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Heart Rate Reserve
• Percent of Heart Rate Reserve- most accurate, takes into account resting heart rate
• Exercise HR = % of target intensity (HRmax – HRrest) + Hrrest
• For example: Target intensity 70 % HRR for a person with HRmax 201 bpm and HRrest 50 bpm
Exercise HR= 70% (201-50=151) + 50Exercise HR=155 bpm
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BENEFITS OF CARDIOVASCULAR FITNESS
Strengthens heart
Reduces atherosclerosis
Less prone to heart disease
Muscles do not tire as easily due to receiving O2
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Cardiovascular Disease
~40% of Americans die from it each year
The way you live now will effect the way your body is 20-30 years from now
Clots (Thrombosis) cause: Heart attacks Strokes
http://apps.nccd.cdc.gov/giscvh/
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Cardiovascular Disease
Risk Factors Inactivity Obesity High Blood Pressure High Levels of Cholesterol Stress & Tension Smoking Sex of Individual Heredity Age
CONTROLLABLE!
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Summarizer 3-2-1
On a small sheet of paper complete the following
3- List 3 benefits of Cardiovascular fitness
2- List 2 places to take pulse on your body
1- List 1 way to avoid cardiovascular disease (Risk Factor)