Investigating the Effects of Krill Oil and Krill Protein on Post-exercise Muscle Protein Metabolism

• Krill oil (Dietary supplement): Krill oil will be supplemented to see if they can gain strength and/or muscle mass following supplementation.
• Krill protein (Dietary supplement): Krill protein will be given to the participant following a resistance exercise bout.
• Vegetable oil (Dietary supplement): This will be the control against the Krill oil
• Carbohydrate (Dietary supplement): This will be the control for the Krill protein

Primary outcomes

• Post-exercise muscle protein synthesis [3-7 hours]: Muscle protein synthesis measured 3-7h after a single bout of resistance exercise

Secondary outcomes

• Change in Muscle thickness [Change from baseline to 8 weeks]: Vastus lateralis muscle thickness measured by ultrasound
• Change in grip strength [Change from baseline to 8 weeks]: Grip strength measured with a Jamar dynamometer
• Change in fat mass [Change from baseline to 8 weeks]: Whole body fat mass measured by BIA
• Change in lean mass [Change from baseline to 8 weeks]: Whole body lean mass measured by BIA
• Change in muscle strength [Change from baseline to 8 weeks]: Knee extensor muscle strength measured isometrically
• Change in Chair rise time [Change from baseline to 8 weeks]: Time taken to get up and down from a chair 5 times
• Change in balance [Change from baseline to 8 weeks]: Ability to stand for 10 seconds in full tandem, semi-tandem and feet together
• Change in gait speed [Change from baseline to 8 weeks]: Time taken to walk 4 metres at a normal walking pace
• Basal muscle protein synthesis [0-3 hours]: Muscle protein synthesis measured from 0-3h after an overnight fast
• Change in Erythrocyte fatty acid profile [Change from baseline to 8 weeks]: Erythrocyte fatty acid profile

Sex: All, ages: 60 Years to 90 Years, accepts healthy volunteers

Inclusion Criteria:

* Be 60 years old or older
* Have a BMI of less than 35kg/m2
* Be participating in structured exercise for less than 2h per week

Exclusion Criteria:

* Diabetes
* Severe cardiovascular disease
* Seizure disorders,
* Uncontrolled hypertension (>150/90mmHg at baseline measurement)
* Cancer or cancer that has been in remission <5 years
* Ambulatory impairments which would limit ability to perform assessments of muscle function
* Dementia
* Taking medication known to affect muscle (e.g., steroids)
* Have an implanted electronic device (e.g., pacemaker/defibrillator/insulin pump),
* Anticoagulant therapy
* Allergies to seafood
* Regular consumption of more than 1 portion of oily fish per week.