Early Supervised Incremental Resistance Training (ESpIRiT) following cardiac surgery via a median sternotomy: a study protocol of a multicentre randomised controlled trial oleh Doa El-Ansary, Md Ali Katijjahbe, Mohd Rizal Abdul Manaf, Colin Royse, Alistair Royse, Nur Ayub Md Ali, Mohd Ramzisham Abdul Rahman, Suriah Ahmad, Chong Tze Huat, Mohamad Arif Muhammad Nor, Jeswant Dillon, Hairulfaizi Haron, Muhamad Ishamudin Ismail