Inclusion Criteria:  Obese or severe obese patients Candidates for short term pre-habilitation among morbid obese patients before bariatric surgery Aged more than 18 years old Malaysian Provided and signed informed consent  Exclusion Criteria:  Not a candidate for short term pre-habilitation among morbid obese patients before bariatric surgery Aged <18 years old Non-Malaysian Not able to provide informed consent chronic renal failure