When examining the single rating immediately before and after behaviors, we found that negative affect increased significantly after LOC eating, purging, the combination of LOC and eating/purging, and weighing of one's self. We found that higher daily ratings of negative affect were associated with a greater likelihood of dietary restriction on subsequent days. In addition, we used two analytic approaches to compare affect before and after other eating disorder behaviors. Mixed-effects models were used to examine the extent to which affective states predict dietary restriction. Participants were provided handheld computers and asked to report positive affect, negative affect, loss of control (LOC) eating, purging, exercise, drinking fluids to curb appetite, and weighing one's self multiple times per day as well as dietary restriction once daily over a 2-week interval. All participants met full Diagnostic and statistical manual of mental disorders (4th ed.) criteria or subthreshold criteria for AN. Participants were 118 adult females recruited at three sites from eating disorder treatment centers and community advertisements. The current study examines the relationship of affect and eating disorder behavior in anorexia nervosa (AN) using ecological momentary assessment. Only time spent in light PA, assessed objectively with AH, showed a negative association with improvement in eating disorder psychopathology. PA in patients with anorexia nervosa is underestimated by subjective assessment when compared with objective measurement. However, a significant association was found between the change in Eating Disorder Examination global score at the end of the treatment and light PA measured by AH (beta = -0.12, t = -2.44, P = 0.019), but not that estimated by IPAQ. No correspondence between PA estimated by IPAQ, which had a tendency to underestimate PA, and that measured using AH emerged. The aim of this study was to compare objective and subjective assessments of physical activity (PA) in patients with anorexia nervosa and its effect on treatment outcome.īoth Actiheart (AH) and International Physical Activity Questionnaire (IPAQ) were used to assess PA in 52 female patients with anorexia nervosa during the first week of inpatient treatment. Athletes making upward comparisons may become increasingly dissatisfied with their appearance and at risk for avoidance of certain sports, decreased amounts of time spent in moderate to vigorous physical activity, and experience feelings of inferiority that negatively influence sport performance. These findings suggest clothing fit influences perception of athletic ability among runners. Results showed participants were more likely to believe athletes wearing tight fitting clothing ran further and faster than athletes wearing loose fitting clothing and were less confident in their abilities to run faster than athletes wearing tight fitting clothing than those who wore loose fitting clothing. ![]() ![]() The survey included four questions related to photographs of athletic models wearing loose fitting and tight fitting clothing: (1) which event do you think the model took part in? (2) what do you think is the main reason he/she took part in the event? (3) how well do you think this person performed? and (4) how confident are you that your running time beat this person’s time? Participants included 2,386 adults who completed an online survey after a running event. This study examined the relationship between clothing fit and perceived fitness level.
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