The KT committee is introducing a new format for our Knowledge Translation articles with an emphasis on how current research articles may impact practitioners. Our first article is written by Katie Kowalski, PhD (Candidate) at Western University. Katie graduated as a doctor of Physical Therapy with honours from the University of Wisconsin-Madison and has many years experience working in a healthcare setting.
Nutritional supplements - a multi-billion-dollar global industry - are heavily marketed to consumers to optimize health, support well-being and improve performance. However, determining whether their purported effects are supported by high quality science can be challenging.
A growing body of literature suggests that not only do overweight and obese individuals experience a greater proportion of negative outcomes as a result of influenza exposure but also vaccination response differs across age groups and sex.
Among various fitness communities it has been long-standing belief that the deadlift exercise causes greater fatigue than the squat or bench press. Therefore, it is commonly said that the deadlift should be trained less frequently than the squat or bench press even though no data actually supports this notion.
Vitamin and mineral supplements have been available for decades. Individuals who take multiple medications and those who are at risk for low nutritional intake from food, may benefit from using these types of supplements.
The nine short months of pregnancy are associated with profound physiological adaptations to the cardiovascular and nervous systems. This includes a 50% increase in blood volume, 30% increase in cardiac output and 20% increase in heart rate at rest.
When activated by stressors such as exercise, sympathetic nerves supplying the heart and muscle blood vessels release a chemical called noradrenaline which causes increases in heart rate and blood vessel constriction.
The optimization of explosive performance is important for enhancing athletic performance and for everyday life, such as recovering from a slip, fall or trip. Explosive performance can be quantified by rate of force development, which is how fast force is produced over a given period of time.
The use of heat exposure has been a growing area of scientific interest with performance and health benefits reported for adults. Athletes typically undertake exercise in the heat to develop adaptations that lead to improved performance.
The Canadian Society for Exercise Physiology (CSEP) recommends that older adults (≥65 years) accumulate 150 minutes of moderate- to vigorous-intensity aerobic physical activity per week. Unfortunately, only ~12% of older adults in Canada achieve this recommendation and most spend ~70-80% of their waking hours engaged in sedentary behaviours like sitting