KINE 1020 Lecture Notes - Lecture 55: Christy Henrich, Bone Density, Calorie Restriction
31 Aug 2016
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Regular period = high bone mineral density (~1. 30) Need your period to fight osteoporosis body wgt still plays a role. Pressure to lose weight to improve performance. Traumatic event, injury, poor performance, change in coaching personnel. Christy henrich: told she was too fat and needed to lose weight if she wanted to make the olympic squad (1988) age: 16; height: 4" 10 ; weight: 42kg/93lbs; bmi: 19. 8 kg/m2: resorted to anorexia/bulimia 22kg/47lbs; 9. 8kg/m2, died at 22 28kg/62lbs; 13 kg/m2. Heidi guenther: ballet dancer told to lose 5lbs by her ballet company height: 5"5 , weight: 115lbs; bmi: 19. 1kg/m2: struggled with anorexia, died at 22 heart suddenly stopped and 93lbs, 15. 5kg/m2. Michael phelps: trained 5 hr/day, 6 days / week consumed 12,000kcal: restrictive intake = - cal balance. Increased expenditure: also increase diet but not sufficient = - cal balance. Eumenorrhea: ovulatory cycle every 24-34 days (10-13 cycles per year)
