KINE 4010 Lecture Notes - Lecture 4: Fructokinase, Phosphofructokinase, Creatine Supplements
2 Mar 2018
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Document Summary
So phosphocreatine goes down depending on the intensity and it plateaus as the other systems take over. Creatine supplements are beneficial in increasing phosphocreatine levels by on an average of 10% and 5-10% is the range we discussed in the previous lecture. 10% is the average improvement, so you start in a high level but the depletion is the same however the plateau is a little bit higher. And because there is more creatine in the muscle that reaction that goes in reverse with high creatine with atp coming from mitochondria to resynthesize phosphocreatine allows for a faster resynthesis rate. 50% of srudies say there is improvement with creatine. 30 sec maximal cycling your work is improved 4% if you"re on creatine compared to when you"re not on creatine. Intervals (300 or 1000 m sprints) better times in the 4th interval. So having creatine supplements gave you better performance times in the 4th interval.
