Patterns of habitual physical activity in youth with and without Prader-Willi Syndrome

A Characterization of Movement Skills in Obese Children With and Without Prader-Willi Syndrome

“…The accelerometer was worn on the right hip and secured with an elastic belt. Participants wore the accelerometer for 8 consecutive days (Sunday to Sunday), with analyses including participants with a minimum of 3 compliant weekdays and 1 compliant weekend day for at least 10 hr per day (Castner et al, 2014). Physical activity was defined as minutes per day of MVPA using cutpoints established by Evenson, Catellier, Gill, Ondrak, and McMurray (2008).…”

“…For example, adults with PWS demonstrate a lower walking speed, shorter stride length, slower cadence, and poor static balance compared with nonsyndromal obese controls (Vismara et al, 2007). Thus, it is not surprising that individuals with PWS may be less physically active as a result of the hypotonia, muscle weakness, and movement dysfunction frequently associated with the syndrome (Castner, Tucker, Wilson, & Rubin, 2014;Reus et al, 2011).…”

“…Studies have suggested that motor proficiency is positively associated with physical activity (Wrotniak, Epstein, Dorn, Jones, & Kondilis, 2006) but negatively related to excessive body mass (Okely, Booth, & Chey, 2004). If such a relationship between body fatness and motor proficiency exists in PWS, contributing factors may include: (a) a relatively high body fat content (van Mil et al, 2001) and (b) a low level of physical activity (Castner et al, 2014;van Mil et al, 2001). Although poor motor coordination, balance, and stamina have been described in the PWS literature, studies have been limited to the examination of toddlers and adults (Reus et al, 2011).…”

Association between physical activity and bone in children with Prader-Willi syndrome

“…Several reports have shown that individuals with PWS engage in less ambulatory and high-intensity activity than their peers [6,24,25]. Low BMD at the hip in PWS youth may be related to low participation in ambulatory activities, such as walking, jogging and general movement [6], and minimal participation in vigorous PA [24].…”

“…Low BMD at the hip in PWS youth may be related to low participation in ambulatory activities, such as walking, jogging and general movement [6], and minimal participation in vigorous PA [24]. However, no studies have evaluated this hypothesis.…”