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1749213
OCR Gateway B1 Fitness and Health
Description
Mind Map on OCR Gateway B1 Fitness and Health, created by emma.sumayaa on 03/12/2014.
Mind Map by
emma.sumayaa
, updated more than 1 year ago
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Created by
emma.sumayaa
over 9 years ago
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Resource summary
OCR Gateway B1 Fitness and Health
Fitness is the ability to do physical activity. Healthy is being free from diseases
General fitness measured by cardiovascular efficiency.
Ways of measuring fitness:
Strength: amount of weights lifted
Flexibility: amount of joint movement
Stamina: How long you can do exercise
Ability: changing directions many times
Speed: sprint race
Blood Pressure
Measure in mmHg
Diastolic pressure (lowest num): heart relaxes
Systolic pressure (highest num): heart contacts
High blood pressure caused by: overweight, alcohol intake, stress, smoking
Decreased by regular exercise and balanced diet
High blood pressure bursts blood vessels
Damage caused to the brain (stroke), heart attack and kidneys
Low blood pressure: poor circulation of oxygen around the body
Body feels dizzy and end up fainting
Blood in arteries is under pressure due to:
Contraction of heart muscles, so that blood reaches all parts of the body
Smoking
Increases blood pressure:
Nicotine (in cigarette smoke)
Increases heart rate
Carbon Monoxide (in cigarette smoke)
Cause blood to carry less oxygen, which result in heart rate increase, tissues receive enough oxygen
OR blood carrying less oxygen combines with HAEMOGLOBIN stopping it from combining with oxygen, so less oxygen is carried
Diet and Heart disease
Increase the risk of heart disease:
Saturated fat---->build up of cholesterol (plaque) in arteries
Cholesterol build up indicates heart disease
Plaque narrows arteries---> reduce blood flow
Plaque make thrombosis (blood clots) ---> block arteries
High level salt --->increases blood pressure
Smoking and high blood pressure
Heart disease: caused by restricted blood flow to heart muscles
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