sat, jan 8, 2011

Appetite regulating hormones cortisol and peptide YY are associated with disordered eating psychopathology independent of body mass index.
Objective: Disordered eating occurs in women at both weight extremes of anorexia nervosa and obesity. Cortisol, peptide YY (PYY), leptin and ghrelin are hormones involved in appetite and feeding behavior that vary with weight and body fat. Abnormal levels of these hormones have been reported in women with anorexia nervosa, functional hypothalamic amenorrhea, and obesity. The relationship between appetite regulating hormones and disordered eating psychopathology is unknown. We therefore studied the relationship between orexigenic and anorexigenic hormones and disordered eating psychopathology in women across a range of weights.
Design: Cross-sectional study of 65 women, 18-45 yrs: 16 with anorexia nervosa, 12 normal-weight with hypothalamic amenorrhea, 17 overweight or obese, and 20 normal-weight in good health. Methods: Two validated measures of disordered eating psychopathology, the Eating Disorders Examination-Questionnaire (EDE-Q) and Eating Disorders Inventory-2 (EDI-2) were administered. Fasting PYY, leptin, and ghrelin levels were measured; cortisol levels were pooled from serum samples obtained every 20 minutes from 8pm to 8am.
Results: Cortisol and PYY levels were positively associated with disordered eating psychopathology including restraint, eating concerns, and body image disturbance, independent of body mass index (BMI). Although leptin levels were negatively associated with disordered eating psychopathology, these relationships were not significant after controlling for BMI. Ghrelin levels were generally not associated with EDE-Q or EDI-2 scores.
Conclusions: Higher levels of cortisol and PYY are associated with disordered eating psychopathology independent of BMI in women across the weight spectrum, suggesting that abnormalities in appetite regulation may be associated with specific eating disorder pathologies.  
Eur J Endocrinol. 2010 Nov 23

TESTING:

Overhead Squat - build to a 15RM;
drop weight after 15 reps
rest 1 min after last set - strip weight to get 95#/65# on bar
then...
for time:
20 squat snatch - 95#/65#
30 pistols
40 CTB chin ups
30 pistols
20 squat snatch - 95#/65#

video the last set of 15 clean OHS reps, the 1 min rest, then the circuit
post highest load, BWT and time for circuit along with video link to comments