Fit­ness can pay off in the long­est run

Stanthorpe Border Post - - LIFESTYLE -

A TEAM of sci­en­tists is ex­plor­ing the molec­u­lar ba­sis of fit­ness and aim­ing to de­velop a sim­ple blood test to de­ter­mine a per­son’s level of health and well­be­ing, a re­port says.

Stan­ford Univer­sity School of Medicine sci­en­tists wanted more de­tails to as­sess aer­o­bic fit­ness. They sought more than the as­sess­ment from the peak VO2 test on a tread­mill that mea­sures the oxy­gen used.

“Ev­ery­body knows ex­er­cise is good for you, but we re­ally don’t know what drives that at a molec­u­lar level,” said Pro­fes­sor Michael Sny­der.

“Our goal was to con­duct a highly com­pre­hen­sive anal­y­sis of what’s hap­pen­ing in the body just after ex­er­cis­ing.”

The 36 par­tic­i­pants and hun­dreds of thou­sands of molec­u­lar mea­sure­ments let re­searchers track mark­ers for me­tab­o­lism, im­mu­nity, ox­ida­tive stress and car­dio­vas­cu­lar func­tion.

The tests let re­searchers ex­am­ine chem­i­cal variations in the body while the par­tic­i­pants did in­tense ex­er­cise.

For those who per­formed bet­ter on the tread­mill VO2 test, sci­en­tists found a strong and in­ter­est­ing cor­re­la­tion but have not yet un­rav­elled the rea­son for it. The par­tic­i­pants who were most phys­i­cally fit had sim­i­lar molec­u­lar sig­na­tures in their rest­ing blood sam­ples be­fore ex­er­cise.

Aer­o­bic fit­ness can be one of the best mea­sures of longevity.

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