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How much exercise do you need?
For many people, their views on sport and exercise were formed
during school PE lessons and early involvement in youth sports.
Often, what they're left with is the impression that only strenuous
sport and exercise is beneficial for health.
In fact, there's a well established and growing body of knowledge
that shows mild to moderate physical activity is the best way to
health. So instead of asking how much exercise is good for you,
perhaps you should be asking how little you can get away with.
Health vs fitness
In order to find out how much exercise is enough, you need to be
clear about what you want to achieve. Do you want to be fit or
healthy? It's easy to confuse the terms as they're often used
interchangeably to mean the same thing. But in fact they are
different in both physiological and psychological terms.
For many people, their views on sport and exercise were formed
during school PE lessons and early involvement in youth sports.
Often, what they're left with is the impression that only strenuous
sport and exercise is beneficial for health.
In fact, there's a well established and growing body of knowledge
that shows mild to moderate physical activity is the best way to
health. So instead of asking how much exercise is good for you,
perhaps you should be asking how little you can get away with.
Health vs fitness
In order to find out how much exercise is enough, you need to be
clear about what you want to achieve. Do you want to be fit or
healthy? It's easy to confuse the terms as they're often used
interchangeably to mean the same thing. But in fact they are
different in both physiological and psychological terms.
Fitness has been defined in relation to a concept called physical work capacity, or how much work the body can do. A
person's fitness can be determined in a laboratory by looking at how much energy they can produce on a cycle ergometer
when cycling at a specific heart rate, or on an athletic track by looking at how far they can run in a set time. Fitness can also
be understood in relation to a number of components including endurance, flexibility, strength and power. You need to be fit to
play many sports, including football, hockey and tennis.
Health, on the other hand, is a broader concept that includes being free from and resilient to disease, mental and spiritual
wellbeing, and the quality of our social relationships. Normally, being fit and being healthy go hand in hand, but this isn't
always the case. For example, you can be very fit, through playing football for example, but suffer a major health problem
such as alcoholism.
Understanding the difference between fitness and health is important because the level of exercise you need to be healthy is
less than that needed to get and keep you fit.
Training for fitness
Many people want or need to be fit because of the job they do (eg, police officers), the sport they play (eg, basketball) or the
body shape they want to achieve (eg, through resistance training).
If you want to be fit, you normally need to follow a structured training programme. Such programmes often take place in
specialised facilities such as leisure centres and may be supervised by an exercise leader. Examples of fitness training include
circuits, running and weight training.
One of the key variables in achieving a high level of fitness is the intensity of the exercise programme. If you want to be very
fit, you may need to exercise at a moderate or high intensity. In achieving fitness goals, most people also become healthier.
However, if you don't want to be fit but just healthy, you don't have to exercise as hard.
Active for health
It doesn't have to be hell to be healthy
If you want to reduce your risk of suffering from coronary heart disease, obesity or mental health problems, research indicates
you should be physically active. To achieve these health benefits doesn't require the same intensity of training as becoming fit.
You can simply build physical activity into your daily routine, either as a form of 'active commuting' (walking or cycling,
perhaps) or in the comfort of a health club. The main message is that it doesn't have to be hell to be healthy.
Some people are put off becoming more active because they think they have to work out at a high intensity, compete with
others or wear a designer tracksuit. None of these things are necessary.
Top active living tips:
Use the stairs instead of the escalator or lift at work.
Park your car in the parking bay furthest from the supermarket.
Don't use the remote control to change TV channels.
This article was last medically reviewed by Dr Rob Hicks in September 2005.
First published in May 2001
person's fitness can be determined in a laboratory by looking at how much energy they can produce on a cycle ergometer
when cycling at a specific heart rate, or on an athletic track by looking at how far they can run in a set time. Fitness can also
be understood in relation to a number of components including endurance, flexibility, strength and power. You need to be fit to
play many sports, including football, hockey and tennis.
Health, on the other hand, is a broader concept that includes being free from and resilient to disease, mental and spiritual
wellbeing, and the quality of our social relationships. Normally, being fit and being healthy go hand in hand, but this isn't
always the case. For example, you can be very fit, through playing football for example, but suffer a major health problem
such as alcoholism.
Understanding the difference between fitness and health is important because the level of exercise you need to be healthy is
less than that needed to get and keep you fit.
Training for fitness
Many people want or need to be fit because of the job they do (eg, police officers), the sport they play (eg, basketball) or the
body shape they want to achieve (eg, through resistance training).
If you want to be fit, you normally need to follow a structured training programme. Such programmes often take place in
specialised facilities such as leisure centres and may be supervised by an exercise leader. Examples of fitness training include
circuits, running and weight training.
One of the key variables in achieving a high level of fitness is the intensity of the exercise programme. If you want to be very
fit, you may need to exercise at a moderate or high intensity. In achieving fitness goals, most people also become healthier.
However, if you don't want to be fit but just healthy, you don't have to exercise as hard.
Active for health
It doesn't have to be hell to be healthy
If you want to reduce your risk of suffering from coronary heart disease, obesity or mental health problems, research indicates
you should be physically active. To achieve these health benefits doesn't require the same intensity of training as becoming fit.
You can simply build physical activity into your daily routine, either as a form of 'active commuting' (walking or cycling,
perhaps) or in the comfort of a health club. The main message is that it doesn't have to be hell to be healthy.
Some people are put off becoming more active because they think they have to work out at a high intensity, compete with
others or wear a designer tracksuit. None of these things are necessary.
Top active living tips:
Use the stairs instead of the escalator or lift at work.
Park your car in the parking bay furthest from the supermarket.
Don't use the remote control to change TV channels.
This article was last medically reviewed by Dr Rob Hicks in September 2005.
First published in May 2001