As homoiothermic organisms humans keeps the constant body temperature throughout life.The mechanisms of the temperature maintenance (i.e. thermoregulation) depend on the intensity of metabolic processes and environment…
Download file to see previous pages...
2005; Hosey, Glazer, 2004) This short review is dedicated to the issues associated with thermoregulation and dehydration influence athletic capacity during endurance events.The specific changes in the organism of athletes (Reilly, Drust, Gregson 2006; Morris et al. 2005, etc) provide the perfect adaptation to the usual environment however in extreme environmental conditions the heat or cold stress can occur and cause serious health problems (Murray, 1998; Kains et al., 1983). The conditions include heat stroke, heat cramps, heat exhaustion, heat oedemas, cardiac events and gastrointestinal symptoms (Murray, 2006; Moses, 2005; Weinmann, 2003; Hedley, Climstein, Hansen, 2002)There is well known that during exercises the metabolism is changed. Prolonged sport training is characterized with the increase of fatty acids oxidation and decrease in carbohydrates oxidation. These changes are supported by the hormonal influences (epinephrine, thyroid hormones, insulin and glucagon). Oxidation of carbohydrates leads to the production of lactic acid and fat oxidation is a source of acidic products thus acidosis can occur (Coyle, 1999; Durkot et al. 1995; Gordon et al., 1985). On the other hand high breathing rate during exercises can cause the condition of respiratory alkalosis (White, 2006). Physical endurance is characterized by the homoeostatic balance and the improved adaptive abilities (Reilly, Drust, Gregson, 2006)....
Usually he most of the heat (40%) organism loses by the emitted radiation, 30% - by convection and conduction (Varghese, Pati, 1996; Nagashima, 2006). This pattern is changed during vigorous physical activity: up to 80% of heat is lost by the evaporation (Reilly, Drust, Gregson, 2006). During prolonged heavy exercise as well as in the extreme environmental conditions body temperature deviates because of the misbalance between heat production and heat losses (ibid). Consequently the ratio between different physical mechanisms of the thermoregulation is altering.
Heat conduction involves the direct transfer of heat energy between the different materials (e.g. human body and cool water) through direct molecular contact (Pezzagno, 1999). Contrarily to this convection is the circulatory motion that occurs in a fluid at a non-uniform temperature owing to the variation of its density and the action of gravity (ibid). This mechanism of thermoregulation is important for the premises or open areas with high velocity of air movement (Saunders et al., 2005). Radiation is the process of emitting radiant energy in the form of electromagnetic waves (i.e. infrared radiation). It is the primary method for discharging the body's excess heat. Its effectiveness depends on the endurance of cardiovascular system - the peripheral hyperaemia in poorly trained person can cause "steal syndrome" and syncope (Natarajan, Nikore 2006; Seto, Way, O'Connor 2005), and on the external infrared radiation from the sun or heated surfaces (Peiser, Reilly., 2004). If the temperature of the surrounding objects is greater than skin temperature thus the body will
...Download file to see next pagesRead More
The author of the text describes the sports of basketball and volleyball from different angles as he/she has to make a choice in favor of one of the activity. Reportedly, approximately 50 boys and girls from the 6th grade participated in either basketball or volleyball. Notably, as the class size was big the teachers split the students into different groups as per their choice.
Nations like the USA has many races and racism is known to dominate some of its states. This has adversely affected sports because there are certain groups of races who see themselves as superior in certain sports, and that the sports are not fit for other races.
15 Symonds, ME and Ramsay, MR 2010, Maternal-Foetal Nutrition during Pregnancy and Lactation, Cambridge University Press, Cambridge. 15 OUTLINE 1. INTRODUCTION 2. PHYSIOLOGY OF NORMAL PREGNANCY a. Prenatal development b. Uterine changes c. Placental development and function 3.
One of the most important things about sports, however, is the huge cultural, political and economic impact they have had on human being over the many years they have been around. Few human activities have more to say about humankind and its aspirations than sports.
Therefore, I will focus on the energy requirements to boost the overall performance among water polo players in Grace Lutheran College.
According to Mike and Thomas (1998), water polo is a high intensity water based team sport that requires aspects of both strength and endurance.
describing the nerve fibres, velocity of impulse conduction, spatial orientation and type of impulses conducted. (5)
The dorsal column-lemniscal pathway is an ascending somatic sensory pathway conveying tactile and proprioceptive information for the body and posterior third of the head.
Thus, the skeletal pattern is formed in cartilage and connective tissue membranes. From here, bone development continues throughout adulthood. The 3 cell types involved in the development, growth and remodeling of bones are osteoblasts, osteocytes and
It would be boring if everyone enjoyed the same sport because people would eventually lose interest in sport. Because there are a variety of sports, anybody can choose which sport they will follow. Even though there are many types of
This is to ensure that differences in temperature between the environment and the skin remain constant thus preventing heat loss and attaining a constant temperature (Yagiela, 1995). When sick, body temperature rises to about 20
I learnt there are many aspects to drag racing, prominently the commercial and technological facets to the sport. What follows is my response to the short documentary.
I learnt the reasons why Hotroders
2 Pages(500 words)Essay
GOT A TRICKY QUESTION? RECEIVE AN ANSWER FROM STUDENTS LIKE YOU!
Let us find you another Essay on topic Advanced Sports Physiology for FREE!