Physiology

Introduction: Maximal oxygen uptake, or VO2 max represents the maximum amount of oxygen consumption attainable during all out aerobic exercise, most commonly running on a treadmill. The point at which oxygen consumption plateaus is the individual’s maximal oxygen uptake. If the individual does not plateau, that point is referred to as VO2 peak. VO2 max is measured in milliliters per kilogram of body weight per minute, and there are two ways to measure it, either direct or indirect. The direct…

technique to estimate this value at the definition of the physical activity is indirect calorimetry (Westerterp, 2013). Oxygen consumed during postexercise recovery period and during exercise above resting level contribute to calorie expenditure. The physiology of upperbody exercise and lower body exercise has been thoroughly researched and reviewed in so many research…

and minerals for athletes. Moreover, organic substances like carbohydrates, fats, and proteins are also a part of sport nutrition. Sport nutrition is a term that is under the umbrella of exercise science along with biomechanics, clinical exercise physiology, motor behavior, athletic training, sports medicine and sport and exercise psychology. Staying active helps a person maintain their flexibility, strength and endurance as they begin to age (Carmont, 2012). Regular physical activity is great…

Abstract Whens humans exercise, their oxygen supply needs to be increased in order to produce the energy needed to sustain this workload. Humans will use a variety of cardio-respiratory mechanisms in order to supply and meet the oxygen levels the body needs during exercise. In this study we wanted to see how different individuals respond to exercise, specifically how long they can work and how efficiently they work. We predicted that females who exercise will have a higher relative-VO2, higher…

According to the Journal of Physiology, high-intensity interval training describes physical exercise that represent brief, intermittent bursts of vigorous activity, integrated by periods of rest (Gibala et al., 2012). The effectiveness of high-intensity training on the cardiovascular and muscular skeletal system is not in question, as it’s been proven in numerous studies the impact HIIT has on the cardiovascular system, psychological health, and physiological changes. Emberts, Porcari, Steffen,…

In the article, “Compressive Forces and Computed Topography-derived Positive End-expiratory Pressure in Acute Respiratory Distress Syndrome” (Cressoni et al. 2014), the researchers' hypothesis was that there was a direct correlation between lung recruitability and positive end-expiratory pressure (PEEP). This would validate the prevailing notion that higher PEEP is only for patients with higher lung recruitability. Previous studies have led to advancements in the field such as the switch from…

When choosing who to interview to learn more about a desired future career choice I went straight to Cody Hodgeson. Cody is known here at Northern Arizona University as Coach Hodgeson. Coach Hodgeson is the head strength and conditioning coach for the university. He is the main strength coach for the football team and oversees all his assistants and graduate assistants for the other sports here at NAU. He began his education journey at Pima Community College for the first two years where he…

Alverti, A. (2011). Respiratory and leg muscles perceived exertion during exercise at altitude. Respiratory Physiology and Neurobiology, 177(2), 162-168. DOI: 10.1016/j.resp.2011.03.014. Alverti measured the exertion of the legs and respiratory muscles in a specific environmental setting. Using Arida, R., Cavalheiro, E.A., Scorza, F. A. (2010). Favorable effects of physical activity for recovery in temporal lobe epilepsy. Epilepsia, 51(3):76-79. DOI: 10.1111/j.1528-1167.2010.02615.x…

1. The nervous system maintains homeostasis by sending electrochemical signs throughout the body, coordinating and executing both the voluntary and involuntary processes. The nervous system is the most complex system in the body and is comprised of the central nervous system, compromised of the brain and the spinal cord, and the peripheral nervous system, composed of the nerve extensions beyond those central pathways. 2. Central nervous system processes information and dictates actions…

clarity. Some people discover new ideas, have more energy, and feel more relaxed. You may find a reduction of your allergy and digestive symptoms. Weight loss is another positive side effect you may experience from fasting. The 2016 Nobel laureate in Physiology or Medicine was Yoshinori Ohsumi, a scientist whose work directly impacts the knowledge of fasting’s benefits. Dr.Ohsumi studied autophagy, or the way cells break down their content. Autophagy is a natural process called that is literally…