KNES 203 Lecture Notes - Lecture 1: Diffusing Capacity, Vo2 Max, Endoplasmic Reticulum
22 Feb 2016
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Document Summary
Physical activity: encompasses all leisure and non leisure body movement produced by the skeletal muscles which result in an increase in energy expenditure over resting levels, classifications: occupational, domestic, transportation, leisure-time. Physical fitness: a set of attributes (measureable) or characteristics that people have or achieve that relates to their ability to perform physical activity, general fitness (state) vs specific fitness (task) Performance related fitness: physical training for a specific task (job or sport?, can be different than training for general health (agility, speed, power) Risks of physical inactivity: recognized as common risk factors for non-communicable diseases, ranks 4th among 5 leading causes of global mortality, costs: (2009) . 4 billion dollars directly, . 3 billion indirectly. Pa benefits: strengthen muscles and bones, reduce stress, maintain healthy body weight, improve sleep, smoking cessation, management of chronic disease, etc. Common physical activity barriers: time, inconvenience, no motivation, not enjoyable, lack confidence, injury fears, lack goals, lack encouragement, lack of infrastructure.
