Read Online Why You Should Avoid Exercise by Russell Eaton - Free Book Online Page B
Authors: Russell Eaton
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were asked to send in completed questionnaires about their lifestyle and degree of exercise. This method of scientific investigation is notoriously unreliable.
Watts Study, 2005
News headlines: 'Exercise helps reduce body-fat and protect the heart'
This study reviewed other studies and concluded that " These studies indicate that, although exercise training does not consistently decrease bodyweight or body mass index, it is associated with beneficial changes in fat and lean body mass. Exercise training improves cardiovascular fitness and muscular strength ". Source: Watts K, et al, Exercise training in obese children and adolescents: current concepts, Sports Med. 2005; 35(5):375-92.
So this Watts study is saying that exercise does not reduce bodyweight or body mass, but that it does help to strengthen muscles and cardiovascular fitness. Clearly, exercise will strengthen muscles, but at a terrible cost because it causes a host of health problems. Muscles are best strengthened by doing physical activity that does not make you breathless/sweaty, such as walking, lifting and pulling activities.
As regards cardiovascular fitness, the Watts study in fact says that exercise improves 'endothelium function'. This refers to the flow of blood through the arteries. The reality is that the efficiency of endothelium function cannot be tested through exercise or by any other means. All that can be tested is endothelium dysfunction. There is no known evidence to show that endothelium dysfunction benefits from exercise. On the contrary, recent research is showing that exercise greatly accelerates the accumulation of plaque in arteries.
Broom Study, 2009
News headlines: 'Exercise prevents over-eating'
This study is often quoted by those who wish to argue that exercise suppresses appetite. [Source: Broom DR, et al, Influence of resistance and aerobic exercise on hunger, circulating levels of acylated ghrelin, and peptide YY in healthy males, Am J Physiol Regul Integr Comp Physiol. 2009 Jan; 296(1):R29-35]. The study concludes that " ghrelin (the hunger-causing hormone) may regulate appetite during and after exercise, but further research is required to establish whether exercise-induced changes in ghrelin influence subsequent food intake ".
Exercise is known to play havoc with the body's hormones because of the stress that is put on the respiratory system, energy levels, and so on. This in turn affects appetite during and immediately after exercise (who wants to eat when you're exhausted and recovering from the exercise!). So although some research (such as the Broom Study) may show that appetite is suppressed during and immediately after exercise, there are no studies showing that appetite suppression has any lasting effect, resulting in genuine weight loss.
Indeed, anecdotal evidence clearly shows that later in the day the degree of hunger and food consumption is increased following a bout of exercise (and we all know this from personal experience). The drain on energy eventually compels the body to want to eat more to regain the lost energy. The Broom Study readily admits that it did not pursue the long-term effects of appetite suppression as a result of exercise by concluding " further research is required to establish whether exercise-induced changes in ghrelin influence subsequent food intake ."
Lakka Study, 2005
News headlines: 'Exercise fights obesity'
This study is a good example of research that reaches vague, generalized and meaningless conclusions, without producing any clear specific evidence. The study concludes that " To combat the epidemic of overweight and to improve cardiovascular health at a population level, it is important to develop strategies to increase habitual physical activity and to prevent overweight and obesity in collaboration with communities, families, schools, work sites, health care professionals, media and policymakers ". Source: Lakka TA, et al,
Watts Study, 2005
News headlines: 'Exercise helps reduce body-fat and protect the heart'
This study reviewed other studies and concluded that " These studies indicate that, although exercise training does not consistently decrease bodyweight or body mass index, it is associated with beneficial changes in fat and lean body mass. Exercise training improves cardiovascular fitness and muscular strength ". Source: Watts K, et al, Exercise training in obese children and adolescents: current concepts, Sports Med. 2005; 35(5):375-92.
So this Watts study is saying that exercise does not reduce bodyweight or body mass, but that it does help to strengthen muscles and cardiovascular fitness. Clearly, exercise will strengthen muscles, but at a terrible cost because it causes a host of health problems. Muscles are best strengthened by doing physical activity that does not make you breathless/sweaty, such as walking, lifting and pulling activities.
As regards cardiovascular fitness, the Watts study in fact says that exercise improves 'endothelium function'. This refers to the flow of blood through the arteries. The reality is that the efficiency of endothelium function cannot be tested through exercise or by any other means. All that can be tested is endothelium dysfunction. There is no known evidence to show that endothelium dysfunction benefits from exercise. On the contrary, recent research is showing that exercise greatly accelerates the accumulation of plaque in arteries.
Broom Study, 2009
News headlines: 'Exercise prevents over-eating'
This study is often quoted by those who wish to argue that exercise suppresses appetite. [Source: Broom DR, et al, Influence of resistance and aerobic exercise on hunger, circulating levels of acylated ghrelin, and peptide YY in healthy males, Am J Physiol Regul Integr Comp Physiol. 2009 Jan; 296(1):R29-35]. The study concludes that " ghrelin (the hunger-causing hormone) may regulate appetite during and after exercise, but further research is required to establish whether exercise-induced changes in ghrelin influence subsequent food intake ".
Exercise is known to play havoc with the body's hormones because of the stress that is put on the respiratory system, energy levels, and so on. This in turn affects appetite during and immediately after exercise (who wants to eat when you're exhausted and recovering from the exercise!). So although some research (such as the Broom Study) may show that appetite is suppressed during and immediately after exercise, there are no studies showing that appetite suppression has any lasting effect, resulting in genuine weight loss.
Indeed, anecdotal evidence clearly shows that later in the day the degree of hunger and food consumption is increased following a bout of exercise (and we all know this from personal experience). The drain on energy eventually compels the body to want to eat more to regain the lost energy. The Broom Study readily admits that it did not pursue the long-term effects of appetite suppression as a result of exercise by concluding " further research is required to establish whether exercise-induced changes in ghrelin influence subsequent food intake ."
Lakka Study, 2005
News headlines: 'Exercise fights obesity'
This study is a good example of research that reaches vague, generalized and meaningless conclusions, without producing any clear specific evidence. The study concludes that " To combat the epidemic of overweight and to improve cardiovascular health at a population level, it is important to develop strategies to increase habitual physical activity and to prevent overweight and obesity in collaboration with communities, families, schools, work sites, health care professionals, media and policymakers ". Source: Lakka TA, et al,
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