All participants provided written informed consent to participate in this study, and
Institutitonal Review Board approval was obtained. In the main trial, participants were …

Background. This study was designed to test different ways of meeting the new ACSM/CDC
recommendations for physical activity stating that all Americans at least 2 years of age …

Objective.—We studied whether the quantity and quality of walking necessary to decrease
the risk of cardiovascular disease among women differed substantially from that required to …

Walking is the most accessible and easily regulated exercise that can enhance health and
cardiorespiratory fitness. Moreover, the inherent neuromuscular limitations to the speed of …

The prevalence of obesity has increased in the United over the past 20 years. Data from the
Center for Disease Control (CDC) has indicated that in 1994 (the first year that data were …

Healthy People 2010—a national initiative established by the US Department of Health and
Human Services and other federal and nongovernmental agencies—recommends 30 …

BACKGROUND.: Current ACSM guidelines recommend that adults should exercise for 20–
60 min on 3–5 days· week− 1 (ML Pollock, et al., The recommended quantity and quality of …

Walking is a safe, accessible and low cost activity, amenable to change and known to have
great potential to increase physical activity levels in sedentary individuals. The objective of …

Several epidemiological studies have shown a clear association between inactivity and a
higher risk of mortality, in particular from coronary heart disease (CHD)[Blair et al. 1989; Brill …

A large and growing body of epidemiologic research spanning roughly 7 decades has
demonstrated that individuals who are more physically active have a lower incidence of …