Saturday, August 18, 2012

Weight Loss and Yoga



In the comprehensive search yielded 507 studies; 10 studies with 544 participants (69.6 ± 6.3 yr, 71% female) were included. Large variability in yoga styles and measurement outcomes make it challenging to interpret results across studies, but researchers found that moderate improvements for gait (ES = 0.54, 0.80), balance (ES = 0.25-1.61), upper/lower body flexibility (ES = 0.25, 0.70), lower body strength (ES = 0.51), and weight loss (ES = 0.73, 0.99).Yoga may engender improvements in some components of fitness in older adults. However, more evidence is needed to determine its effectiveness as an alternative exercise to promote fitness in older adults. Further investigation into yoga as an exercise activity for older adults is warranted(1)

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(1) "Does yoga engender fitness in older adults? A critical review" by Roland KP, Jakobi JM, Jones GR.

Sunday, August 12, 2012

CV health starts with good nutrition

A healthy diet is essential, regardless of CV risk. Caloric balance is inherent to a good diet. Despite patients who say they eat little, ideal weight can be maintained if calories are burned. Composition is another component of a healthy diet. Dr. Whayne TF Jr, and Dr. Maulik N. at the University of Kentucky, showed that Exercise, in conjunction with a healthy diet and good nutrition, helps maintain optimal weight and provides CV benefit such as decreased inflammation and increased vasodilatation. Whether vitamins or other nutritional supplements are important in a healthy diet is unproven. Nevertheless, the most promising data of added benefit to a healthy diet is with vitamin D. Some dietary supplements also have promise. Alcohol, in moderation, especially red wine, has nutritional and heart protective benefits. Antioxidants, endogenous or exogenous, have received increased interest and appear to play a favorable nutritional role. CV health starts with good nutrition(1).

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(1) " Nutrition and the healthy heart with an exercise boost" by Whayne TF Jr, Maulik N.

Friday, August 10, 2012

Obesity and type 2 diabetes (T2DM) and level of lysophosphatidylcholine (LPC)


In the investigation of the plasma lipidomic analysis in a rodent model of obesity and insulin resistance as well as in lean, obese and obese individuals with T2DM, showed that Irrespective of species, our lipidomic profiling revealed a generalized decrease in circulating LPC species in states of obesity. Moreover, our data indicate that diet and adiposity, rather than insulin resistance or diabetes per se, play an important role in altering the plasma LPC profile(1).

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(1) "Plasma lysophosphatidylcholine levels are reduced in obesity and type 2 diabetes"by Barber MN, Risis S, Yang C, Meikle PJ, Staples M, Febbraio MA, Bruce CR.

Thursday, August 9, 2012

Heart healthy diet and myocardial infarction and venous thromboembolism.



In the study to investigate the association of a heart healthy diet on risk of myocardial infarction (MI) and venous thromboembolism (VTE)., showed that  High intake of fish, fruit, vegetables and polyunsatured fat had a 23% reduced risk of MI (HR 0.77; 95%CI: 0.60-0.98), but no association with VTE (HR 0.95; 95%CI: 0.64-1.40). A heart healthy diet showed an even more favourable association with MI in obese subjects (HR: 0.62; 95%CI: 0.41-0.95), but not with VTE. Our findings suggest that a heart healthy dietary pattern is associated with moderately reduced risk of MI, but not related to risk of VTE(1).

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(1) "Heart healthy diet and risk of myocardial infarction and venous thromboembolism. The Tromsø Study" by Hansen-Krone IJ, Enga KF, Njølstad I, Hansen JB, Braekkan SK.

Monday, August 6, 2012

The Mediterranean diet: is it cardioprotective?



Researchers at the University of California, San Francisco, San Francisco that increasing scientific evidence suggests that the traditional Mediterranean diet may reduce the risk of cardiovascular disease. The cardiovascular benefits of this whole-diet approach may outweigh those of typically prescribed low-fat diets. The burden of coronary heart disease is enormous, and nutritional approaches that optimize cardiovascular health are essential(1).

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(1) " The Mediterranean diet: is it cardioprotective?" by Bautista MC, Engler MM.

Thursday, August 2, 2012

Effectiveness and safety of 1-year ad libitum consumption of a high-catechin beverage under nutritional guidance



In a study to study to conduct based on a comprehensive cohort design using a catechin beverage (containing 588 mg of tea catechins) and a control beverage (containing 126 mg of tea catechins), data were analyzed using per protocol samples of 134 subjects (catechin group, n = 77; control group, n = 57). Body weight and body mass index were reduced significantly in the catechin group compared to the control group. Changes in body weight during the study period were -1.1 kg in the catechin group and 0.2 kg in the control group. In the catechin group, the visceral fat areas at the start of the trial were significantly correlated with the magnitude of fat reduction at the end of the trial. Under the guidance of a registered dietitian, subjects in the catechin group who showed a reduction in their fat-derived energy percentage during the test period tended to reduce more body weight than those with an increase in this percentage, although no difference in total energy intake was noted between the two groups. One-year ad libitum consumption of a catechin beverage posed no health risks and resulted in a reduction in body weight(1).

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(1) "Effectiveness and safety of 1-year ad libitum consumption of a high-catechin beverage under nutritional guidance" by Yoneda T, Shoji K, Takase H, Hibi M, Hase T, Meguro S, Tokimitsu I, Kambe H.

Wednesday, August 1, 2012

Hypocaloric dietary intervention implemented in a school of obese children.



In the study to examine whether a protein-sparing modified fast diet and a hypocaloric balanced diet are effective in a clinic-based dietary intervention implemented in a school setting high-risk weight loss program for superobese (> or = 140% of their ideal body weight for height [IBW] children of
12 superobese children placed on a 2520 to 3360 J (600 to 800 Cal) protein-sparing modified fast diet.  showed that at 6 months the 12 superobese children on protein-sparing modified fast diet had a significant weight loss from baseline (-5.6 +/- 7.1 kg, ANOVA p < 0.02); a significant decrease in percentage IBW (-24.3 +/- 20%, ANOVA p < 0.002); and had positive growth velocity Z-score (1.3 +/- 1.6, ANOVA p < 0.05). Six children were not superobese at 6 months. At 6 months eight of 12 children were active participants and 11 of 12 children were followed. Decrease in blood pressure, as well as, downward trends in serum lipids were observed at 6 months. No clinical complications were observed. At 6 months, the 7 control superobese children, when compared with baseline had gained weight (2.8 +/- 3.1 kg, ANOVA p < 0.008); but had no significant change in percentage IBW (-0.3 +/- 5.9%, ANOVA p = 0.61); and had no changes in growth velocity Z-score (0.1 +/- 1.3, ANOVA p = 0.83). These children did not have any change in blood pressure and an upward trend in serum lipids were observed at 6 months. Protein-sparing modified fast diet and a hypocaloric balanced diet appear to be effective in a group of superobese-school-age children in a medically supervised clinic-based program implemented in a school setting over a 6-month period. The efforts of committed clinic staffs, school officials, peers, and family involvement were crucial to the success of this intervention program in promoting and maintaining weight loss over a 6-month period(1).

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(1) "Feasibility of a clinic-based hypocaloric dietary intervention implemented in a school setting for obese children" by Figueroa-Colon R, Franklin FA, Lee JY, von Almen TK, Suskind RM.