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If there is more haemoglobin in the blood, more oxygen can be carried to the muscles, giving an athlete more resistance to lactic acid burn - helping them go faster for longer.

L. reuteri, or LR, typically resides in the digestive tract, where it generates lactic acid.

As the lactic bit late on, England, outscored by 23 points in the final 20 minutes of matches so far this year, could not maintain their line speed.

“Cupping helps the body to detox that lactic acid and get it moved out of the area so that soreness can be relieved.”

She had gritted her teeth through the final metres of the race, the lactic building with every stride, years of hurt channelled into every stride.