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In several nations MBT MBT Shoes there is great interest in developing and maintaining the physical fitness levels of the citizens of all age NFL jerseys Football jerseys levels, but special concern goes to the fitness of youth. Physical fitness has been defined in many ways. According to the American Academy of Physical Education 'physical fitness is the ability to carry out daily tasks with vigor and alertness, without undue fatigue and with ample energy to engage in leisure time pursuits and to meet the above average physical stresses encountered in emergency situations' (Clarke, 1979).

Often the distinction is cheap jerseys NFL jerseys cheap made between an organic component and a motor component. The organic component is defined as the capacity to adapt to and recover from strenuous exercise, and relates to energy production and work output. The motor component relates to the development and performance of gross motor abilities. Since the beginning of the 1980s the distinction between health-related and performance-related physical fitness has come into common use (Pate and Shephard, 1989). Health-related fitness is then viewed as a state characterized by an ability to perform daily activities with vigour, and traits and capacities that are associated with low risk throwback jerseys Saints jerseys of premature development of the hypokinetic diseases (i.e. those associated with physical inactivity) (Pate and Shephard, 1989,' p.4). Health-related physical fitness includes cardiorespiratory endurance, body composition, muscular strength and flexibility. Performance-related fitness refers to the abilities associated with adequate athletic performance, and encompasses components such as isometric strength, power, speed-agility, balance and hand-eye coordination.
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Since Sargent (1921) proposed the vertical jump as a physical performance test for men, considerable change has taken place both in the conceptualization of physical performance and physical fitness and also about measurement. In the early days the expression 'general motor ability' was used to indicate one's Viking jerseys MBT 'general' skill. The term was similar to the general intelligence factor used at that time. Primarily under the influence of Brace (1927) and McCloy (1934) a fairly large number of studies were undertaken and a multiple motor ability concept replaced the general ability concept. There is now considerable agreement among authors and experts that the fitness concept is multi-dimensional and several abilities can be identified. An ability refers to a more general trait of the individual which can be inferred from response consistencies on a number of MBT Shoes MBT shoes clearance
related tasks, whereas skill refers to the level of proficiency on a specific task or limited group of tasks. A child possesses Isometric strength since he or she performs well on a variety of isometric strength tests.

9 }, p4 ^$ Z/ z& Z7 K/ e. q/ TConsiderable attention has been devoted to fitness testing and research in the USA and Canada. The President's Council on Youth Fitness, the American Alliance for Health, Physical Education, Recreation and Dance (AAHPER, 1958, 1965; AAHPERD, 1988) and the Canadian sister organization (CAHI'ER, 1965) have done an outstanding job in constructing and promoting fitness testing in schools. Internationally the fundamental works of Fleishman (1964) and the International Committee for the Standardization of Physical Fitness Tests (now the International Council for Physical Activity MBT Sandals MBT Kisumu and Fitness Research) (Larson, 1974) have received considerable attention and served, for example, as the basis for nationwide studies in Belgium (Hebbelinck and Borms, 1975; Ostvn et <?/., 1980; Simons el ul., 1990). Furthermore, the fitness test battery constructed by Simons et al. (1969) served as the basis for studies in The Netherlands (Bovend'eerdt et &laquo;?/., 1980) and for the construction of the Eurofit test battery (Adam etal., 1988).
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* S. U5 {# L% TIn the following section three laboratory practicals will be outlined focusing on standards of normal growth, biological Reebok EasyTone maturity status and evaluation of physical fitness. INTERPRETATION OF THE RESULTS