We thank the dedicated

team of researchers at The University of Birmingham for managing and co-ordinating the project. We are also grateful for support from the Department of Health Support for Science (MidRec), the Health Foundation, Waterstones, selleck Tesco and the School Stickers Company. We especially want to thank the children, families, schools and communities included in the study (http://www.beaches.bham.ac.uk/) without whom this project would not have been possible. “
“Work or school commute offers a logical option to integrate more physical activity in daily life as a means of counterbalancing the sedentary forces behind the on-going obesity epidemic. Even though biking and walking to work and school would be most effective, for most Americans the choice, if any, is between car and public transportation (PT). PT users walk and climb stairs more than car commuters do, as a result of moving to, from, and within stations (Besser and Dannenberg, 2005, Edwards, 2008, Lachapelle, and Frank, 2009 and Ogilvie et al., 2004). We have documented the higher physical energy expenditure of PT users during their work commute compared to car drivers (Morabia et al., 2009 and Morabia

et al., 2010). After the introduction of a new commuter light rail transit in North Carolina, MacDonald et al. (2010) found that the rail commuters had an 18% reduction in body mass index compared DAPT ic50 to those oxyclozanide who kept commuting by car, corresponding to the loss of 6.5 lb

for a person 5′5″ (165 cm) tall over 7 months. This was equivalent to an average excess energy expenditure of about 100 kcal/day, compatible with simulation studies suggesting that an average loss of 100 kcal/day can stabilize the progression of a population’s weight (Hill et al., 2003 and Morabia and Costanza, 2004). Increased energy expenditure and potentially associated loss of body weight can reduce inflammatory responses, as assessed by total white blood cell (WBC) count and C-Reactive Protein (CRP), (Ford, 2002, Hammett et al., 2004 and Kasapis and Thompson, 2005) and epigenetic markers such as global genomic DNA methylation (Zhang et al., 2011a) and gene-specific methylation (Coyle et al., 2007). Inflammatory processes are involved in atherogenesis (Mora et al., 2007) and carcinogenesis (Coussens and Werb, 2002 and Rogers et al., 2008). There is, however, no research yet evaluating whether commute-specific physical activity is involved in chronic disease pathways.