Hier eine interessante Stellungnahme zu dem Thema von Dr Nicolai Worm (LOGI) he
Beiträge: 1.658
Herkunft: München
RE: Aber neue Studie gibt zu Denken
Liebe LOGIanerInnen!
Eine neue, sehr aufwendig durchgeführte und offenbar ziemlich eng kontrollierte Studie, lässt doch erheblichen Zweifel an der bisherigen "besten Evidenz" aufkommen. Demnach würde sich die theoretisch erzielbare negative Energiebilanz - egal ob mit Diät oder mit Sport - in gleichem Gewichtsverlust niederschlagen...
Das gab es so eindeutig noch nie. Das wäre schön, für die Argumentation gegenüber Couchpotatoes. Ich mal gespannt, ob das von anderen Arbeitsgruppen bestätigt werden kann.
Grüße,
Nicolai Worm
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Effect of Calorie Restriction with or without Exercise on Body Composition and Fat Distribution
Leanne M. Redman, Leonie K. Heilbronn, Corby K. Martin, Anthony Alfonso, Steven R. Smith, and
Eric Ravussin, for the Pennington CALERIE Team*
Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808
Context: There is debate over the independent and combined effects of dieting and increased physical activity on improving metabolic risk factors (body composition and fat distribution).
Objective: The objective of the study was to conduct a randomized, controlled trial (CALERIE) to test the effect of a 25% energy deficit by diet alone or diet plus exercise for 6 months on body composition
and fat distribution.
Design: This was a randomized, controlled trial.
Setting: The study was conducted at an institutional research center.
Participants: Thirty-five of 36 overweight but otherwise healthy participants (16 males, 19 females) completed the study.
Intervention: Participants were randomized to either control (healthy weight maintenance diet, n 11), caloric restriction (CR; 25% reduction in energy intake, n 12), or caloric restriction plus exercise
(CR EX; 12.5% reduction in energy intake 12.5% increase in exercise energy expenditure, n 12) for 6 months.
Main Outcome Measures: Changes in body composition by dual energy x-ray absorptiometry and changes in abdominal fat distribution by multislice computed tomography were measured.
Results: The calculated energy deficit across the intervention was not different between CR and CR EX. Participants lost approximately 10% of body weight (CR: 8.3 0.8, CR EX: 8.1 0.8 kg, P 1.00), approximately 24% of fat mass (CR: 5.8 0.6, CR EX: 6.4 0.6 kg, P 0.99), and 27% of abdominal visceral fat (CR: 0.9 0.2, CR EX: 0.8 0.2 kg, P 1.00). Both whole-body and abdominal fat distribution were not altered by the intervention.
Conclusion: Exercise plays an equivalent role to CR in terms of energy balance; however, it can also improve aerobic fitness, which has other important cardiovascular and metabolic implications.
J Clin Endocrinol Metab 92: 865–872, 2007ute im Logiforum gefunden.