"The key point of our work is that glucosamine can have effects that are far from harmless and should be used with great caution," concluded Professor Picard.
The results obtained by Picard and his team coincide with recent studies that cast serious doubt on the effectiveness of glucosamine in treating joint problems.
"Marathon runners can be a lot less fit than they think," Dr. Eric Larose today told the Canadian Cardiovascular Congress 2010, co-hosted by the Heart and Stroke Foundation and the Canadian Cardiovascular Society.
Lack of real aerobic fitness may directly impact the ways the heart organizes itself to survive the stress of marathon running, says Dr. Larose.
His research found that the magnitude of abnormal heart segments was more widespread and significant in a group of less fit runners. During the marathon, they had signs the heart might be at greater risk of damage than that of runners who had better training or at least had better exercise capacity.
"Without proper training, marathon running can damage your heart. Fortunately the exercise-induced injury is reversible over time," said Dr. Larose. "But it could take up to three months to completely recover."
Among community-dwelling older persons, both feeling alone and being alone are associated with more rapid motor decline, underscoring the importance of psychosocial factors and motor decline in old age.
The results of this case-control study reveal a positive association between weight and lumbar disc herniation as well as lumbar disc narrowing among men and women. A medium amount of pack-years was associated with lumbar disc herniation and narrowing in men and women. A non-significantly lowered risk of lumbar disc disease was found in men with high levels of cumulative body building and strength training.
These findings indicate that CPP enhances energy metabolism and reduces lipogenesis by downregulating SREBP-1c and related molecules, which leads to the suppression of body fat accumulation.
Conclusion: Changes in BMI during puberty were inversely related to changes in sleep duration, independent of possible confounders.
Barefoot is the best solution we can do to help counteract atrophy of the feet. While if you have pain or worse symptoms then specific work may be needed, barefoot helps rebuild the feet especially if agility and balance work are incorporated effectively.
The data show that modal adult life span is 68–78 years, and that it was not uncommon for individuals to reach these ages, suggesting that inferences based on paleodemographic reconstruction are unreliable. One recent study that avoids several common problems of skeletal aging used dental-wear seriation and relative macro-age categories (ratio of old to young) to demonstrate an increase in the relative presence of older adults from australopithecines to early Homo and, more strikingly, among Upper Paleolithic humans (Caspari and Lee 2004; but see Hawkes and O’Connell 2005). More compellingly, a recent re-estimation of several common paleo-mortality curves based on hazard analysis and maximum likelihood methods shows a life course pattern similar to that of our thnographic sample (Konigsberg and Herrmann 2006).
Robert H. Lustig, MD, UCSF Professor of Pediatrics in the Division of Endocrinology, explores the damage caused by sugary foods. He argues that fructose (too much) and fiber (not enough) appear to be cornerstones of the obesity epidemic through their effects on insulin.
For the past three decades, saturated fat has been considered a major culprit of cardiovascular disease (CVD) and as a result dietary advice persists in recommending reduced consumption of this macronutrient. However, new evidence shows that saturated fat intake has only a very limited impact on CVD risk -- causing many to rethink the "saturated fat is bad" paradigm.
"Screening of hundreds of thousands of athletes to save possibly one life a year, cannot be justified," he concludes.
Activity: From the 70's to now
Juneau and his colleagues used several Statistics Canada databases on the health of Canadians that included 17,000 to 132,000 respondents. He concluded that the lack of physical activity during office hours could explain the fact that obesity has increased 10 percent between 1978 and 2004.
A surprise findings was the increased healthy attitudes toward transportation. "As a result of urban sprawl we expected to see more car-dependant people," says Juneau. "Yet, both men and women increasingly adopted healthy behaviours such as walking and biking, which is definitely good news."
Quick bursts of activity may be the solution
Juneau suggests that to combat the inactivity and rise in obesity it would be best to integrate sport, work and transportation. For example, it may be more effective to exercise in smaller doses throughout the day rather than concentrate the effort. Therefore, walking at break time and taking the stairs could have great benefits.
"Even if you don't exclusively work with young people, this exam will challenge your working knowledge as a trainer and trainee."
"This test is challenging, yet necessary for establishing the proper goals and direction for today's youth. In a time when we are inflicted with child obesity, an abundance of poor food options, technology that limits daily activity level that results in minimal activity/exercise and consequently earlier-than-normal health issues -- it is time to step up and dial it back toward a healthier approach. Matt Brzycki and Fred Fornicola should be lauded for their efforts in addressing this issue and promoting healthier alternatives.".
"If your goal is to lose fat, skipping sleep is like poking sticks in your bicycle wheels," said study director Plamen Penev, MD, PhD, assistant professor of medicine at the University of Chicago. "Cutting back on sleep, a behavior that is ubiquitous in modern society, appears to compromise efforts to lose fat through dieting. In our study it reduced fat loss by 55 percent."
