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Author Interviews, CHEST, Lifestyle & Health, Obstructive Sleep Apnea / 24.02.2015

Matthew Buman PhD Asst Professor SNHP Exercise & Wellness Arizona State UniversityMedicalResearch.com Interview with: Matthew Buman PhD Asst Professor SNHP Exercise & Wellness Arizona State University   Medical Research: What is the background for this study? What are the main findings? Dr. Buman: A lack of physical activity is a known risk factor for insomnia, poor sleep, and obstructive sleep apnea. In addition to physical activity, sedentary behavior has emerged as an important behavior. Sedentary behavior is not just the lack of physical activity, but actually refers to the time someone spend sitting. This behavior has been shown to, independent of physical activity, be related to many poor health outcomes including cardiovascular disease, diabetes, and even premature death. This is the first study to examine whether there is a relationship between excess sitting and insomnia, poor sleep, and risk for obstructive sleep apnea. We found, after adjusting for physical activity and body weight (among other confounding factors), that total daily sitting was associated with poor sleep quality but not other sleep metrics or OSA risk. However, we also examined sitting while watching television and found a significant relationship between this type of sitting and a host of sleep quality metrics as well as risk for OSA. In a subsequent analysis we found that despite the independent relationship between sitting while watching television with OSA risk, those that were physically active were protected from this negative impact. (more…)
Author Interviews, Lancet, Lifestyle & Health / 07.02.2015

Dr Sandra L Jackson PhD Atlanta VA Medical Center, Decatur, GA, Nutrition and Health Sciences, Graduate Division of Biological and Biomedical Sciences Emory University, Atlanta, GA, USAMedicalResearch.com Interview with: Dr Sandra L Jackson PhD  Atlanta VA Medical Center, Decatur, GA, Nutrition and Health Sciences, Graduate Division of Biological and Biomedical Sciences Emory University, Atlanta, GA, USA Medical Research: What is the background for this study? What are the main findings? Dr. Jackson: Lifestyle change programs are aimed to improve health, yet little is known about their impact once translated into clinical settings. The Veterans Health Administration (VA) MOVE! program is the largest lifestyle change program in the U.S. Participation is a key challenge of the program, as only 13% of the eligible population participated. However, among patients who did not have diabetes at baseline, we found that MOVE! participation was associated with lower diabetes incidence. (more…)
Annals Internal Medicine, Author Interviews, Exercise - Fitness, Lifestyle & Health / 20.01.2015

David Alter, MD, PhD FRCPC Senior Scientist Toronto Rehabilitation Institute-University Health Network and Institute for Clinical Evaluative Sciences Research Director, Cardiac Rehabilitation and Secondary Prevention Program Toronto Rehabilitation InstituteMedicalResearch.com Interview with: David Alter, MD, PhD FRCPC Senior Scientist Toronto Rehabilitation Institute-University Health Network and Institute for Clinical Evaluative Sciences Research Director, Cardiac Rehabilitation and Secondary Prevention Program Toronto Rehabilitation Institute   Medical Research: What is the background for this study? What are the main findings? Dr. Alter: We knew going into the study that exercise was an important lifestyle factor that improved health. We also knew from studies that sedentary time was associated with deleterious health-effects. What we didn’t know was whether the health-outcome effects of sedentary time and exercise were really one and the same (i.e., albeit opposite ends of the same spectrum) or alternatively, whether the health effects of each were independent of one another.  We explored over 9000 published studies to quantify the health-outcome effects associated with sedentary behaviour and extracted only those which took into account both sedentary time and exercise. We found a consistent association between sedentary time and a host of health outcomes independent of exercise. Specifically, after controlling for an individual’s exercising behaviour, sitting-time was associated with a 15-20% higher risk of death, heart-disease, death from heart disease, cancer-incidence, and death from cancer. Sitting time was also independently  associated with a marked (i.e., 90% increase) in the risk for diabetes after controlling for exercise. In short, sedentary times and exercise are each independently associated with health outcomes. We hypothesize that the two may have different mechanism, and may require different therapeutic strategies. But, the health-outcome implications of both are each important in their own right. (more…)
Aging, Author Interviews, JAMA, Lifestyle & Health / 19.01.2015

Jane Wardle University College London MedicalResearch.com Interview with: Jane Wardle University College London Medical Research: What is the background for this study? What are the main findings? Dr. Wardle: Previous studies have shown that couples tend to have similar health behaviours to one another, but no studies had compared having a partner who takes up a healthy behaviour (e.g. quits smoking) with having one whose behaviour is consistently healthy (e.g. never smoked). Nor have there been other studies in the older age group – our participants were over 60 on average.  We used data from 3722 couples participating in the English Longitudinal Study of Ageing (ELSA) to explore this issue for three behaviours: smoking, physical activity, and weight loss. For each behaviour, we found that when one partner changed their behaviour, the other partner was more likely to make a positive change, and the effect was stronger than having a partner whose behaviour was consistently healthy (i.e. never smoked/always exercised). (more…)
Author Interviews, Gender Differences, Heart Disease, JACC, Lifestyle & Health / 07.01.2015

Andrea Kaye Chomistek ScD Assistant Professor Epidemiology and Biostatistics Indiana University BloomingtonMedicalResearch.com Interview with: Andrea Kaye Chomistek ScD Assistant Professor Epidemiology and Biostatistics Indiana University Bloomington   Medical Research: What is the background for this study? What are the main findings? Dr. Chomistek:  Although mortality rates from coronary heart disease in the U.S. have been in steady decline for the last four decades, women aged 35-44 have not experienced the same reduction. This disparity may be explained by unhealthy lifestyle choices. Thus, the purpose of our study was to determine what proportion of heart disease cases and cardiovascular risk factors (diabetes, hypertension, and high cholesterol) could be attributed to unhealthy habits. We defined healthy habits as not smoking, a normal body mass index, physical activity of at least 2.5 hours per week, watching seven or fewer hours of television a week, consumption of a maximum of one alcoholic drink per day on average, and a diet in the top 40 percent of a measure of diet quality based on the Alternative Healthy Eating Index. We found that women who adhered to all six healthy lifestyle practices had a 92 percent lower risk of heart attack and a 66 percent lower risk of developing a risk factor for heart disease. This lower risk would mean three quarters of heart attacks and nearly half of all risk factors in younger women may have been prevented if all of the women had adhered to all six healthy lifestyle factors. (more…)
Author Interviews, Diabetes, General Medicine, Lancet, Lifestyle & Health / 04.04.2014

Prof Guangwei Li MD Department of Endocrinology China-Japan Friendship Hospital Center of Endocrinology and Cardiovascular Disease, National Center of Cardiology & Fuwai Hospital, Beijing, ChinaMedicalResearch.com Interview with: Prof Guangwei Li MD Department of Endocrinology China-Japan Friendship Hospital Center of Endocrinology and Cardiovascular Disease, National Center of Cardiology & Fuwai Hospital, Beijing, China MedicalResearch.com: What are the main findings of the study? Answer: Our study first shows that a six-year period of lifestyle intervention in Chinese people with IGT reduced the incidence of diabetes over a protracted time period and was ultimately associated with a significant reduction in total and cardio-vascular disease mortality. This reduction in mortality appears to be mediated in part by the delay in onset of diabetes resulting from the lifestyle interventions. (more…)
Author Interviews, Heart Disease, Lifestyle & Health / 04.06.2013

MedicalResearch.com eInterview with: Haitham Ahmed, MD, MPH The Ciccarone Center for the Prevention of Heart Disease Johns Hopkins Hospital MedicalResearch.com: What were the main findings of the study? Dr. Ahmed: Everyone knows that healthy lifestyle habits are major factors that protect you from heart disease. What we don’t know is which habits are most important, and how exactly these habits prevent disease progression along the causal biological pathway over years and years. So we followed 6,200 men and women of various ethnic backgrounds from 6 university locations across the US. We looked at their eating habits, exercise, weight, and smoking history. We did CT scans on them at the start of the study and then a few years later (mean 3 years) and found that healthier people had lower calcium deposition in their coronaries. We then kept following them and found that these same healthy people had a trend towards less cardiovascular events. We then kept following them further and found that these same healthy people died less, by an 80% lower rate, compared to people that were unhealthy, which was incredible. So what we took away from this is that you have enormous power in changing your risk of atherosclerosis, heart disease, and death by changing your lifestyle behaviors. (more…)