KPE160H1 Study Guide - Midterm Guide: White Blood Cell, Ion Exchange, Systolic Geometry
31 Jan 2017
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Energy systems: anaerobic system ( lactic + alactic) Without the use of oxygen, uses chemicals and enzymes. Alactic system uses atp-pc system: relies on action of phosphor-creatine, compound normally stored in muscle and readily accessible. Like atp, it is a high-enery molecule where the phosphate can be broken off easily and can be used to convert adp back to. Important for things like 50-metre dash and high jump. System can only give energy for intense activity for 10-15 seconds. phospho creatine requires atp: 2-5 minute of recovery time is needed for full replenishment. Does not involve metabolism of glucose as an energy source. Lactic system uses energy pathway of glycolysis: glucose is partially broken down to provide usable energy in the form of atp. It is the(cid:374) (cid:272)o(cid:374)(cid:448)erted to la(cid:272)ti(cid:272) a(cid:272)id, (cid:272)ausi(cid:374)g e(cid:454)haustio(cid:374) or pai(cid:374) to the athlete"s (cid:373)us(cid:272)le. This gives about 1-3 additional minutes of high-level activity.
