Letters Section Editor: Stephen J. Lurie,
MD, PhD, Senior Editor.
To the Editor: It is not clear how participants
in the PREMIER study1 achieved "at least
180 min/wk of moderate intensity physical activity." This is an important
question particularly for minority women, who are at higher risk for obesity
and lifelong chronic diseases. Minority women, particularly Hispanic and black
women, typically engage in limited kinds and amount of physical activities,
if they do any at all (S.Y. et al, unpublished data, 2002).2 Their
physical activities are often tied to their domestic and paid-work related
activities.3,4 Such activities
are generally unintentional, spread across the day, of low intensity, and
vary by season and pregnancy status (S.Y. and S. Lee, unpublished data, 1999).
It would be important to know whether such irregular and unintentional activities,
if enhanced, would be as effective as structured exercise in terms of health.
Yeo S. Effects of Exercise and Weight Loss on HypertensionEffects of Exercise and Weight Loss on Hypertension. JAMA. 2003;290(7):885. doi:10.1001/jama.290.7.885-a