Among the various trace elements playing a key role in physical performance, iron is probably one of the most studied in the last 30 years. Iron is an essential component of both hemoglobin and myoglobin allowing an optimal oxygen delivery to organs, especially to skeletal muscle. Iron also plays a major role in the mitochondrial respiratory chain, as well as in the activity of numerous enzymes. Recent studies support the existence of a strong interaction between the iron metabolism and the other non-ferrous trace elements including among others zinc, copper or cobalt. The latter, but also other trace element metals could thus play an important role in physical performance. The finality of this project is thus 1) to determine the variations of plasma iron and non-ferrous metals in response to an acute exercise, 2) better understand the interactions between all these metals, 3) to determine if such responses to exercise are different or not depending on sex.
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Plasma iron availability
Timeframe: Week 3