2017 NACSM Spring Tutorial Meeting: Exercise and Aging
Dr. Charles L. Rice, PhD, FACSM
Professor of Kinesiology in the Faculty of Health Sciences, and Dept. of Anatomy & Cell Biology, Schulick School of Medicine and Dentistry at The University of Western Ontario, London, Ontario, Canada. Research Director of the Canadian Centre for Activity and Aging, Faculty of Health Sciences at The University of Western Ontario, London, Canada.
The age-related loss of muscle mass and strength (sarcopenia) can be related partially to changes in the quantity and quality of the neuromuscular system. We have focused our studies at the motor unit level to investigate how some key features of motor unit structure and function contribute and adapt to normal adult aging of the neuromuscular system. In cross-sectional comparisons of young and older (65-95y) healthy adults, and with older humans who are very physically active; a combination of electrophysiologic and anatomic techniques have been used to assess the relative influence of various elements of the system, and to explore the impact of physical activity as a possible moderating factor to the age-related declines in structure and function of the neuromuscular system.
Dr. Marc Poulin, PhD
Professor and Faculty of Medicine and Kinesiology, Brenda Strafford Foundation Chair in Alzheimer Research, Departments of Physiology & Pharmacology and Clinical Neurosciences at the University of Calgary in Alberta, Canada. Our research group is currently studying the mechanisms of cerebral blood flow regulation in young healthy humans, and of the changes in the cerebral circulation associated with ageing. More specifically, our research focuses on the mechanisms that regulate the sensitivity of cerebral blood flow to hypoxia, hypercapnia, and hypocapnia. In addition, we use simple mathematical models to characterize the changes in cerebral blood flow in response to the above stimuli. This work will help us better understand the cerebral blood flow control mechanisms in young healthy humans, how these mechanisms become altered with ageing, and the role of interventions such as exercise as preventive strategies against diseases such as stroke.