Exercise will make you healthy but it will not make you happy say scientists

Research published in the British Medical Journal suggests that adding a physical activity intervention to usual care did not reduce symptoms of depression more than usual care alone.

This contrasts with current clinical guidance which recommends exercise to help those suffering from the mental illness, which affects one in six adults in Britain at any one time.

To carry out the study researchers recruited 361 patients aged 18 to 69 years who had recently been diagnosed with depression.

Trial participants were then split into two groups to receive either the physical activity intervention in addition to usual care, or usual care on its own and were followed up for 12 months to assess any change in their symptoms.

But the study found that adding exercise failed to alleviate symptoms of depression more than usual care alone, only increasing levels of physical activity.

The study, carried out by teams from the Universities of Bristol, Exeter and the Peninsula College of Medicine and Dentistry, is the first large-scale, randomised controlled trial to establish the effects of exercise on depression.

Previously most of the evidence for the positive effect of physical activity in treating depression has originated from studies of small, non-clinical samples using interventions that would not be practicable in an NHS setting.

Melanie Chalder, of the University of Bristol’s School of Social and Community Medicine, said: “Numerous studies have reported the positive effects of physical activity for people suffering with depression but our intervention was not an effective strategy for reducing symptoms.

“However, it is important to note that increased physical activity is beneficial for people with other medical conditions such as obesity, diabetes and cardiovascular disease and, of course, these conditions can affect people with depression.”

The study was funded as part of the National Institute for Health Research (NIHR) Health Technology Assessment (HTA) programme, with contributions from the Department of Health and local primary care trusts.