Assessment statement Obj Teacher’s notes A.2.8 Outline what steps should 2 be taken to prevent and to subsequently treat heat- related disorders. A.2.9 Describe how an athlete 2 Performing training sessions in similar should acclimatize to heat environmental conditions (heat and humidity) stress. for 5 to 10 days results in almost total heat acclimatization. Initially, the intensity of training should be reduced to avoid heat-related problems in these conditions. National representative teams/sportspeople choosing to acclimatize to the conditions of a host country during a major international sporting competition could be considered. Aim 8: The cost associated with the acclimatization of athletes using environmental chambers and/or expensive overseas training facilities (science and technology drives demand) could be explored. This also raises an ethical implication that poorer nations are unable to afford such support mechanisms and so their athletes are disadvantaged in comparison to athletes from wealthier nations. A.2.10 Discuss the physiological and 3 Include increased plasma volume, increased metabolic adaptations that response and reduced rate of muscle glycogen with heat utilization. acclimatization. A.2.11 Outline the principal means by 2 Consider shivering, non-shivering thermogenesis which the body maintains and peripheral vasoconstriction. core temperature in cold environments. A.2.12 Explain why the body 3 For example, tall, heavy individuals have a small surface area to body mass body surface area to body mass ratio, which is important for heat makes them less susceptible to hypothermia. preservation. Small children tend to have a large body surface area to body mass ratio compared to adults. This makes it more difficult for them to maintain normal body temperature in the cold. A.2.13 Outline the importance of 2 A chill factor created by the increase in the rate of wind chill in relation to body heat loss via convection and conduction caused by heat loss. wind.
Assessment statement Obj Teacher’s notes A.2.8 Outline what steps should be taken to prevent and to subsequently treat heat- related disorders. 2 A.2.9 Describe how an athlete should acclimatize to heat stress. 2 Performing training sessions in similar environmental conditions (heat and humidity) for 5 to 10 days results in almost total heat acclimatization. Initially, the intensity of training should be reduced to avoid heat-related problems in these conditions. National representative teams/sportspeople choosing to acclimatize to the conditions of a host country during a major international sporting competition could be considered. Aim 8: The cost associated with the acclimatization of athletes using environmental chambers and/or expensive overseas training facilities (science and technology drives demand) could be explored. This also raises an ethical implication that poorer nations are unable to afford such support mechanisms and so their athletes are disadvantaged in comparison to athletes from wealthier nations. A.2.10 Discuss the physiological and metabolic adaptations that with heat acclimatization. 3 Include increased plasma volume, increased response and reduced rate of muscle glycogen utilization. A.2.11 Outline the principal means by which the body maintains core temperature in cold environments. 2 Consider shivering, non-shivering thermogenesis and peripheral vasoconstriction. A.2.12 Explain why the body surface area to body mass is important for heat preservation. 3 For example, tall, heavy individuals have a small body surface area to body mass ratio, which makes them less susceptible to hypothermia. Small children tend to have a large body surface area to body mass ratio compared to adults. This makes it more difficult for them to maintain normal body temperature in the cold. A.2.13 Outline the importance of wind chill in relation to body heat loss. 2 A chill factor created by the increase in the rate of heat loss via convection and conduction caused by wind.
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