http://fitmarker.com/ Stories posted in Weight Loss en-us Mon, 21 May 2012 15:18:19 -0500 http://fitmarker.com/weight-loss/differences-in-insulin-resistance-do-not-predict-weight-loss-in-response-to-hypocaloric-diets-in-healthy-obese-women/ Sat, 05 May 2012 16:38:28 -0500 http://fitmarker.com/weight-loss/differences-in-insulin-resistance-do-not-predict-weight-loss-in-response-to-hypocaloric-diets-in-healthy-obese-women/ http://fitmarker.com/weight-loss/effects-of-resistance-or-aerobic-exercise-training-on-total-and-regional-body-composition-in-sedentary-overweight-middle-aged-adults/ Abstract:The purpose of this study was to examine the effects of 10 weeks of aerobic endurance training (AET), resistance exercise training (RET), or a control (CON) condition on absolute and relative fat mass (FM) or fat-free mass (FFM) in the total body (TB) and regions of interest (ROIs) of sedentary overweight middle-aged males and females. Following prescreening, 102 subjects underwent anthropometric measurements, dual-energy X-ray absorptiometry, and strength and aerobic exercise testing. Randomized subjects (male RET, n = 16; female RET, n = 19; male AET, n = 16; and female AET, n = 25) completed supervised and periodized exercise programs (AET, 30-50 min cycling at 70%-75% maximal heart rate; RET, 2-4 sets × 8-10 repetitions of 5-7 exercises at 70%-75% 1 repetition maximum) or a nonexercising control condition (male CON, n = 13 and female CON, n = 13). Changes in absolute and relative TB-FM and TB-FFM and ROI-FM and ROI-FFM were determined. At baseline, and although matched for age and body mass index, males had greater strength, aerobic fitness, body mass, absolute and relative TB-FFM and ROI-FFM, but reduced absolute and relative TB-FM and ROI-FM, compared with females (p < 0.05). After training, both female exercise groups showed equivalent or greater relative improvements in strength and aerobic fitness than did the male exercise groups (p < 0.05); however, the male exercise groups increased TB-FFM and reduced TB-FM more than did the female exercise groups (p < 0.05). Male AET altered absolute FM more than male RET altered absolute FFM, thus resulting in a greater enhancement of relative FFM. Despite equivalent or greater responses to RET or AET by female subjects, the corresponding respective increases in FFM or reductions in FM were lower than those in males, indicating that a biased dose-response relationship exists between sexes following 10 weeks of exercise training. ]]> Fri, 20 Apr 2012 03:15:18 -0500 http://fitmarker.com/weight-loss/effects-of-resistance-or-aerobic-exercise-training-on-total-and-regional-body-composition-in-sedentary-overweight-middle-aged-adults/ http://fitmarker.com/weight-loss/less-body-fat-improves-physical-and-physiological-performance-in-army-soldiers/ Abstract: The purpose of this study was to compare physical and physiological fitness test performance between Soldiers meeting the Department of Defense (DoD) body fat standard (< or = 18%) and those exceeding the standard (> 18%). Ninety-nine male 101st Airborne (Air Assault) Soldiers were assigned to group 1: < or = 18% body fat (BF) or group 2: > 18% BE. Groups 1 and 2 had similar amounts of fat-free mass (FFM) (66.8 +/- 8.2 vs. 64.6 +/- 8.0, p = 177). Each subject performed a Wingate cycle protocol to test anaerobic power and capacity, an incremental treadmill maximal oxygen uptake test for aerobic capacity, isokinetic tests for knee flexion/extension and shoulder internal/external rotation strength, and the Army Physical Fitness Test. Results showed group 1: < 18% BF performed significantly better on 7 of the 10 fitness tests. In Soldiers with similar amounts of FFM, Soldiers with less body fat had improved aerobic and anaerobic capacity and increased muscular strength. ]]> Tue, 17 Apr 2012 11:38:32 -0500 http://fitmarker.com/weight-loss/less-body-fat-improves-physical-and-physiological-performance-in-army-soldiers/ http://fitmarker.com/weight-loss/how-genes-and-environments-combine-to-regulate-body-adiposity/ Abstract: The close correspondence between energy intake and expenditure over prolonged time periods, coupled with an apparent protection of the level of body adiposity in the face of perturbations of energy balance, has led to the idea that body fatness is regulated via mechanisms that control intake and energy expenditure. Two models have dominated the discussion of how this regulation might take place. The set point model is rooted in physiology, genetics and molecular biology, and suggests that there is an active feedback mechanism linking adipose tissue (stored energy) to intake and expenditure via a set point, presumably encoded in the brain. This model is consistent with many of the biological aspects of energy balance, but struggles to explain the many significant environmental and social influences on obesity, food intake and physical activity. ]]> Sun, 29 Jan 2012 04:08:51 -0600 http://fitmarker.com/weight-loss/how-genes-and-environments-combine-to-regulate-body-adiposity/ http://fitmarker.com/weight-loss/new-exercise-hormone-found/ Wed, 18 Jan 2012 09:07:16 -0600 http://fitmarker.com/weight-loss/new-exercise-hormone-found/ http://fitmarker.com/weight-loss/fat-loss-eating-plan/ Sun, 06 Nov 2011 12:02:24 -0600 http://fitmarker.com/weight-loss/fat-loss-eating-plan/ http://fitmarker.com/weight-loss/study-shows-food-combining-not-beneficial-for-weight-loss/ RESULTS: There was no significant difference in the amount of weight loss in response to dissociated (6.2 +/- 0.6 kg) or balanced (7.5 +/- 0.4 kg) diets. Furthermore, significant decreases in total body fat and waist-to-hip circumference ratio were seen in both groups, and the magnitude of the changes did not vary as a function of the diet composition. Fasting plasma glucose, insulin, total cholesterol and triacylglycerol concentrations decreased significantly and similarly in patients receiving both diets. Both systolic and diastolic blood pressure values decreased significantly in patients eating balanced diets. The results of this study show that both diets achieved similar weight loss. Total fat weight loss was higher in balanced diets, although differences did not reach statistical significance. Total lean body mass was identically spared in both groups. CONCLUSION: In summary at identical energy intake and similar substrate composition, the dissociated (or 'food combining') diet did not bring any additional loss in weight and body fat. ]]> Mon, 26 Sep 2011 02:22:07 -0500 http://fitmarker.com/weight-loss/study-shows-food-combining-not-beneficial-for-weight-loss/ http://fitmarker.com/weight-loss/intermittent-fasts-in-the-correction-and-control-of-intractable-obesity/ Fri, 23 Sep 2011 01:09:01 -0500 http://fitmarker.com/weight-loss/intermittent-fasts-in-the-correction-and-control-of-intractable-obesity/ http://fitmarker.com/weight-loss/the-curse-of-the-liquid-calories/ Mon, 19 Sep 2011 09:44:41 -0500 http://fitmarker.com/weight-loss/the-curse-of-the-liquid-calories/ http://fitmarker.com/weight-loss/how-to-incorporate-cardio-to-your-fat-loss-program-lift-heavy-com/ Sun, 18 Sep 2011 03:27:38 -0500 http://fitmarker.com/weight-loss/how-to-incorporate-cardio-to-your-fat-loss-program-lift-heavy-com/