There is clear evidence of inequalities in the health status of minority ethnic groups in Britain. This includes a number of conditions which may be alleviated or prevented through increased levels of physical exercise. Other research has shown lower levels of activity and raised body mass among Asian groups. There remains some scope for argument about the reasons for these differences. It is, for example, suggested that health education materials are poorly targeted at South Asian communities, or that certain cultures discourage involvement in recreational physical activities. It is known that both motivation and self-image are important to physical activity behaviour, from school age upwards. A lifestyle survey sponsored by the Health Education Authority, and qualitative research, provide an opportunity to examine the degree to which there are distinctive 'ethnic' barriers to exercise or other healthy physical activity amongst communities of South Asian origin living in England. While there are many similarities with the reasons given by members of the white population for 'not exercising', there are some subtle differences between communities, and a number of issues which appear to be specific to the minority populations. Some are particular to a religion, gender or generation. Attention to these, including questions of modesty, gender segregation, and safety, would improve the accessibility of recreational activities to this target group. At the same time, it is clear that individuals from these communities are well informed and well motivated, and do take advantage of local facilities when they can. The question of both institutional and personal racism cannot be excluded from a strategy for promoting healthy physical activity; equally, it is important to pay attention to the characteristics of particular communities to gain their confidence. A 'colour-blind' or homogenous approach may be counterproductive. [ABSTRACT FROM AUTHOR]