Before a fight, many MMA fighters lose weight rapidly before regaining it before the fight.
Many sports clubs around the country are preparing for a return to outdoor activity from next month as part of the Government's re-opening plan.
Amid difficulties for those involved in sport at all levels over the last year, Professor Niall Moyna and Dr Katie Liston talk to RTÉ Sport's Clare MacNamara about the challenges faced by those in the sector during the pandemic.
