What evidence is there to support the idea that exercise can add ‘Life to years’ (Department of health, 1993) by improving the quality of life?

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What evidence is there to support the idea that exercise can add ‘Life to years’ (Department of health, 1993) by improving the quality of life?

‘Quality of life’ is a subjective well being of an individual. When an individual has high levels of life satisfaction, an absence of a negative affect such as depression or bad mood, and a presence of a positive affect such as a happy home life or work place then they are said to have quality of life. It has also been stated by Cambell, Converse and Rogers in 1976 “Quality of life emphasises subjective experience of your perceptions and needs of the spirit, rather than objective conditions of life and affluence”. It has been discovered through some research that exercise improves quality of life. It is a proven fact that exercise directly influences health on a physiological basis, whereas there is some dispute whether there is a psychological influence to exercise due to the huge amount of research that has been done on the subject. Most of the research indicates that there is a psychological influence to exercise that improves quality of life.

There are additional factors that must be taken into account when looking at quality of life. Personality factors e.g. self-esteem, extrovert, introvert has been found to influence quality of life by researchers such as Diener and Lucas, 1999. There are sociodemographic factors for example age and class that have been discovered to influence quality of life. The main researcher in this field is Argyle, 1999.

Context or situational factors for instance emotional state have been revealed by Morris, 1999. Finally, Oishi et al, 1999, exposed subjective factors that influence quality of life such as personal assessment or associates influence. This is why it is so hard to validate the results of any investigation when working with quality of life.

        The measurement of quality of life has been widely studied and tested. Over 300 scales have been developed, from single scale to scales with over thirty items. The common domains used to produce these scales include biophysical, work related, self-related and social aspects. Pavot and Diener’s (1993) review has been found to be the most reliable. It consists of questions on a one to five scale. It is seen to be more susceptible to placement within a battery of questions. It has also been discovered that there is a complex relationship between well being and physical activity (exercise) due to the variety of sports or activities, the variety in exercise setting and the variety of personal characteristics.

        The question that is constantly asked by psychologists is ‘what does exercise have to do with quality of life?’ and that is why there are so many scales and so much research produced. Exercise directly influences health and health is a sub-domain of quality of life. Exercise also influences mood, stress, self-esteem, personal enjoyment and an individual’s peak moment.

        Mood has been studied in great depth and most studies have found that there is an immediate positive mood after exercise. For example, Berger and Owen, 1992 studied the mood state in swimmers and yoga participators pre and post activity. It was concluded that both sets of subjects had an average of a four-hour positive mood change immediately after exercise. The results were more conclusive in the yoga test due to the nature of the exercise. The scores for tension, depression, anger, fatigue and confusion decreased after exercise. The pre and post fatigue scores for the swimmers were similar because of the higher intensity of exercise. The scores for vigour increased dramatically, showing, along with the other scores, a more positive mood.

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        There has also been a BFS (befindlichkeitsscale) created by Able and Brehm in 1993, which takes into account activation and evaluation factors. Parfitt et al, 1994, studied the affective reactions to exercise using eighty students. The intensity of exercise was manipulated according to exercise history. It was discovered that the group that had an active life and performed high intensity had a greater positive affect in the high intensity condition, whereas there was no change at a decreased intensity.

The importance of mood has been widely recognised, for example, Thayer, 1996, stated that “even an unpleasant social interaction can be ...

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