[HardCor3]

לא הבנתי על מה הויכוח כאן על נושא הביצה? אם כן אז זה נכון,כולסטרול תורם להיפרטרופיה וביצה היא מקור טוב לכולסטרול,אבל לא העיקרי. ניתן למצוא כולסטרול גם בבשר,גבינות וכ'ו.

מחקר שמראה שכולסטרול תורם להיפרטרופיה:

effect of dietary cholesterol on muscle hypertrophy with resistance tvaining: Randomized double blind placebo-controlled tvial: 1768: Board #56 may 31 8:00 am 9:30 am
[c-26 free communication/poster - nutritional interventions: May 31, 2007 7:30 am 12:30 pm room: Hall e]

riechman, steven e.; gasier, heath g.
Texas a&m university, college station, tx. Email: sriechman@hlkn.tamu.edu
funded by: Us poultry and egg association

we have previously demonstrated a strong association of dietary cholesterol on lean mass and strength gains with resistance exercise training (ret) in older adults, independent of dietary protein.

Purpose: To follow up, we conducted a randomized trial in which we administered either 0 eggs/day (3.5 mg/kg lean/day cholesterol, the atp iii recommendation of <200 mg/day), ~ 1 egg/day (7.0 mg/kg lean/day, ~400 mg/day, average american diet) or ~3 egg/day (14.0 mg/kg lean/day, ~800 mg/day) mixed in a standard protein drink. Isocaloric supplemention was administered every 12 hours starting immediately post exercise.

Methods: Healthy, recreationally active 50–69 year old men and women performed a standard 12 week ret protocol, 3 times a week, 8 exercises, 3 sets of 8–12 repetitions at 70% of 1 repetition maximum. Prior to testing and training, subjects participated in 5 hours of diet education and 6 hours of exercise orientation. During ret, subjects restricted cholesterol to 3.5 mg/kg lean/day and consumed >1.0 g/kg protein. Dietary records were submitted 4x/week to assess compliance.

Results: Lean mass increased 2.4 ± 2.9% and gains were significantly different (p<0.05) between the 1 and 3 egg groups (0 egg=2.5 ± 4.0%, 1 egg 0.7 ± 2.0%, 3 eggs=3.6 ± 2.7 . Composite strength increases (chest +leg press) were significantly greater in the 3 egg group (0egg=14 ± 7%, 1 egg=8 ± 10%, 3 eggs=33 ± 19 . Blood cholesterol was significantly increased in the 1 egg group only (0 egg=+1 ± 23, 1 egg +17 ± 9, 3 eggs=+6 ± 9 mg/dl).

Conclusions: Our results suggest that dietary cholesterol may have a modest role in muscle mass and strength increases