By exercising you can improve components of fitness, which benefits your physical health.
Aerobic exercise improves your cardiovascular endurance.
Exercise can benefit your musculo-skeletal system- muscles and bones get stronger, and joints become more flexible.
Exercise helps you to reach and maintain a healthy weight, which reduces strain on your body.
Physical activities make you stronger and fitter, so everyday tasks such as climbing the stairs are easier.
Health- A state of complete physical, mental and social well-being and not merely the absence of disease or illness.
Fitness- The ability to meet the demands of the environment.
Wellbeing- A mix of physical, social and mental factors that gives people a sense of being comfortable, healthy and happy.
Health has three components:
Physical health
Mental health
Social health
Physical health and wellbeing refers to the idea that all of the body's systems are working well, so you are free from illness and injury. You therefore have the ability to carry out everyday tasks.
Exercise positively affects physical health and well being as it can:
Improve heart function
Improve the efficiency of the body systems- cardio vascular system.
Reduce the risk of some illness; for example, diabetes.
Help to prevent the onset of obesity.
Enables you to carry out everyday tasks without getting tired.
Provides a feeling that you can comfortably carry out activities and enjoy them
Mental health and wellbeing is 'a state of wellbeing in which every individual realizes his or her own potential'.
Taking part in exercise positively affects mental health and wellbeing as it can:
Reduce stress levels
Release feel-good hormones in the body, such as serotonin
Enables a person to control their emotions and work productively.
Social health and wellbeing refers to the idea that:
Basic human needs are being met (food, shelter and clothing)
The individual has friendship and support, some value in society and is socially active
The individual sufferers little stress in social circumstances
Exercise can positively impact social health and wellbeing as it can:
Provides opportunities to socialise and make friends
Encourage co-operation skills
Encourages team-working skills
Improvements in fitness will:
Improve your ability to cope with the demands of your environment.
Reduce the chances of you suffering injuries
Make it easier for you to complete physical work
Make you feel more content and happy
Sedentary Lifestyle- A person's choice to engage in little, or irregular physical activity.
Potential consequences of choosing a sedentary lifestyle:
Gaining weight/ becoming obese
Heart disease
High blood pressure
Diabetes
Poor sleep
Poor confidence
Feeling tired
Lack of friends
Being underweight means having a BMI of below 18.5
Being a healthy weight means having a BMI between 18.5 and 25.
Being overweight means having a BMI of 25 or over.
Being Obese means having a BMI of 30 or over.
How obesity can cause ill physical health:
It contributes to the development of cancer
It contributes to heart disease/heart attacks
It contributes to an increase in blood pressure
It contributes to development of type 2 diabetes
How obesity can cause ill mental health:
It can lead to depression
It can cause a loss of confidence
It can make the individual feel like they can't contribute to society (wellbeing).
How obesity can cause ill social health:
It can lead to inability to socialise
It may make the individual feel unable to leave home
It may make the individual conscious of how they look and, therefore, uncomfortable in social situations (wellbeing).
A balanced diet contains the best ratio of nutrients to match your lifestyle.
A balanced diet consists of 15-20% protein, 25-30% Fats and 55-60% carbohydrates.
Carbohydrates are the main source of energy for the body. Carbohydrates are vital for providing energy for your muscles during physical activity.
Proteins help the body grow and repair itself. They're vital for building and repairing muscles after exercise.
Fats provides more energy than carbohydrates for low-intensity exercise. They also keep the body warm. However too many saturated fats can cause obesity.
On average an adult male needs 2500 calories a day, and an adult female needs 2000 calories a day. How much energy you need also depends on how much you use up through daily activities and exercise. Age and height affect this too
Vitamin and mineral intake comes from foodstuff such as fruit and vegetables. Vitamins and minerals are needed for maintaining the efficient working of the body systems and general health.
Water is needed in loads of chemical reactions in the body. It's also used in sweat to help you cool down when your body temperature rises through exercise.
Dehydration will cause:
Blood thickening
Slower reactions and poor decision-making as your brain needs water to function well
Increased bodytemp, as body can't sweat
Muscle fatigue and cramps
Ectomorphs:
Narrow shoulders, hips and chest
Not much fat or muscle
Long, thin arms
Play sports such as: long distance running and tennis
Endomorphs:
Wide hips but relatively narrow shoulders
A lot of fat on the body, arms and legs
Higher fat content
Mesomorph:
Wide shoulders and relatively narrow hips
Muscular body
Strong arms and thighs
Not much body fat
Play sports such as: rugby, weightlifting and gymnastics