Effect of 25-hydroxyvitamin D and a Structured Exercise Program on Dialysis Patients

Inclusion Criteria: 1. Stable on dialysis for at least 3 months 2. Able to obtain informed consent 3. Medically stable 4. Dialysis adequacy at target for small solute clearance (ie Kt/V\>1.2 or Urea reduction ratio\>65%) 5. Serum 25-hydroxyvitamin D levels less than 75nmol/L at baseline Exclusion Criteria: 1. Limb Amputation 2. Impaired cognition 3. Impaired vision 4. Haemoglobin concentration \< 110g/L 5. Change in Erythropoiesis stimulating agent dose over the last 2 months 6. Unable or unwilling to comply with exercise program