PORT Adelaide star Robbie Gray is said to be "buzzing" at the prospect of taking part in an innovative Gatorade testing program to improve player hydration in New York next week.

Players will take part in the three-day testing program to determine their individual hydration needs.

The Brazilian soccer team kicked off the initiative that provides players with customised hydration fluids three years ago.

Joining Gray will be Hawthorn's Luke Hodge and Grant Birchall, Western Bulldogs forward Jake Stringer, Geelong defender Harry Taylor, West Coast's best and fairest winner Andrew Gaff and Power assistant coach Matthew Nicks.

All six players will then join the International Rules Series training camp as part of the Australian squad that takes on Ireland in a one-off test at Croke Park in Dublin on November 21, while Nicks' participation is part of his Level Four coaching program.

The testing, to be conducted in the Big Apple by Gatorade's sports scientists from Florida's Gatorade Sports Science Institute, will include VO2 max and sweat testing as well as interviews with the individuals.

Further testing will occur with the players when Gatorade's team visits Australia in late January but the player's individual hydration packs will be used in Ireland.

Gatorade previously involved Collingwood's Scott Pendlebury and Gold Coast's Gary Ablett in testing in America in February 2014.

Port Adelaide's fitness coach Darren Burgess told AFL.com.au the 27-year-old Gray was '"buzzing" ahead of the Gatorade program.

Burgess said the testing was necessary because each player sweated at different rates and their sweat differed, with some individuals containing more fluid and others more electrolytes.

Burgess said clubs had an understanding of how to hydrate players but the Gatorade testing would take individualised programs a step further.

"Gatorade is bringing out an individual hydration strategy. At the end of this [testing] we'll know how much to hydrate Robbie [Gray] and what content of electrolyte to include," Burgess said.

"The technology coming out of Gatorade does look pretty cool. You can design your own little pod for each player and that makes the job so much easier."