Effects of Whey and Collagen on FFM, Muscle Strength and Wound Healing in Elderly Surgical Patients

The Effects of Whey Protein and Collagen on Fat Free Mass, Muscle Strength and Wound Healing in Elderly Patients Undergoing Elective Knee- or Hip Surgery

The purpose of the study is to compare the effect of whey protein and collagen on fat free mass, muscle strength, functional ability, wound healing and life quality in elderly patients undergoing elective knee- or hip surgery (defined as elective knee- or hip arthroplasty). The patients are admitted at the department of Orthopaedic Surgery at Herlev Gentofte Hospital.

Inclusion Criteria:

• Age 65+ years
• Scheduled elective knee- or hip surgery
• Must be able to understand and speak danish
• Must be able to chew and swallow food with a regular consistency
• Must be able to consume the assigned protein supplementation
• Must be able to consent participation

Exclusion Criteria:

• Vegan
• Demensia
• Critical complications to the surgery which prevents the patient from participating in the rehabilitation program
• Plasma-creatinin above 250 micromol/L
• Palliative patients
• Known intolerance of whey protein and/or collagen
• Patients with a pacemaker