Moshe
21-10-07, 10:24
להלן מחקר בנושא כולסטרול ועלייה במסה :
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 and an uncertain role on cardiovascular risk factors when undergoing RET.
המחקר מתייחס להבדל בין צריכה של , 0 , 1 או 3 ביצים שלמות ביום והכולסטרול שבהן , כך שההבדל בין 3 ביצים ל0 ביצים היה 1-3% "מסה רזה".
הכוח בין צריכה של 0 ביצים ל3 ביצים עלה בתרגיל חזה ולחיצת רגליים ב 33±19%
המחקר התנהל במשך 12 שבועות.
כמה בעיות עם המחקר הראשוני הזה , דבר ראשון מחקר מוזר , דבר שני אני בספק רב אם ביצה אחת או 3 ביצים ישפיעו על רמות הכולסטרול בדם , הבדיקה הייתה צריכה הייתה להיות עם הרבה יותר ביצים (לפחות ההפרש בינהם בין ביצה אחת נגיד ל10 ביצים ולא 1 ל3 ).
תהנו:wub1:
קרדיט על המחקר לpete69
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 and an uncertain role on cardiovascular risk factors when undergoing RET.
המחקר מתייחס להבדל בין צריכה של , 0 , 1 או 3 ביצים שלמות ביום והכולסטרול שבהן , כך שההבדל בין 3 ביצים ל0 ביצים היה 1-3% "מסה רזה".
הכוח בין צריכה של 0 ביצים ל3 ביצים עלה בתרגיל חזה ולחיצת רגליים ב 33±19%
המחקר התנהל במשך 12 שבועות.
כמה בעיות עם המחקר הראשוני הזה , דבר ראשון מחקר מוזר , דבר שני אני בספק רב אם ביצה אחת או 3 ביצים ישפיעו על רמות הכולסטרול בדם , הבדיקה הייתה צריכה הייתה להיות עם הרבה יותר ביצים (לפחות ההפרש בינהם בין ביצה אחת נגיד ל10 ביצים ולא 1 ל3 ).
תהנו:wub1:
קרדיט על המחקר לpete69