The Effects Of A Protein Enriched Diet With Lean Red Meat Combined With A Multi Modal Exercise Program On Muscle And Cognitive Health And Function In Older Adults Study Protocol For A Randomised Controlled Trial

This research protocol outlines a study designed to test whether combining lean red meat consumption with resistance exercise can help older adults maintain both muscle and brain health as they age. The study recognizes that muscle loss in aging isn't just about physical weakness—it's also connected to cognitive decline and dementia risk. Researchers wanted to investigate whether adequate protein intake, specifically from lean red meat, combined with progressive resistance training could address both issues simultaneously.

The 48-week study will follow 152 men and women over age 65, randomly dividing them into two groups. One group will perform resistance training three times weekly and eat prescribed portions of lean red meat (about 160 grams of cooked meat per training day). The control group will do the same exercise routine but eat carbohydrates like rice, pasta, or potatoes instead of the meat. Both groups will be monitored for changes in muscle mass, strength, and cognitive function, along with various biological markers related to growth factors and inflammation.

The study is based on emerging science showing that protein intake and resistance exercise may benefit the brain through multiple pathways, including the regulation of growth factors like IGF-1 and brain-derived growth factor (BDNF), as well as reducing harmful inflammation. If successful, this research could provide evidence that strategic nutrition and exercise interventions can simultaneously address the muscle loss and cognitive decline that often accompany aging.

This type of research directly supports the personalized, preventive approach used in concierge medicine, where practitioners can design targeted nutrition and exercise protocols based on individual patient needs and goals for healthy aging.