Dominique ten Haaf and colleagues performed a randomized clinical trial to assess the effects of 12-weeks protein supplementation on body characteristics. Daily supplementation of 30 grams of protein increased lean body mass and reduced fat mass. Findings were published in the Journal of Cachexia, Sarcopenia & Muscle.Sufficient protein intake is important for the maintenance of muscle mass. However, Ten Haaf previously showed that 63% of physically active individuals aged >65 years have insufficient protein consumption. In the present study, the effects of protein supplementation on muscle mass, muscle strength and physical performance were assessed.
A total of 116 physically active older adults with insufficient protein intake and preparing for the Nijmegen Marches were recruited and allocated to daily protein supplementation or placebo. Measurements of body composition, muscle strength and physical performance were performed before the start and after 12 weeks of supplementation. Participants receiving proteins demonstrated a larger increase in relative lean body mass and larger reduction in fat mass during the study. No differences in muscle strength or physical performance were observed most likely because both groups already performed extremely well on these parameters at the initiation of the study.
Findings from the present study provide important insight in strategies to optimize the health benefits of a physically active lifestyle in older adults. Increasing or maintaining lean body mass is important as 0.5-1% of muscle mass is typically lost per year due to ageing. Preservation of muscle mass and muscle strength are important prerequisites to preserve mobility and independence for daily life activities while ageing.
Protein supplementation improves lean body mass in physically active older adults: a randomized placebo-controlled trial.
Ten Haaf DSM, Eijsvogels TMH, Bongers CCWG, Horstman AMH, Timmers S, de Groot LCPGM, Hopman MTE.
Dominique ten Haaf is member of theme Vascular damage.
Related news items
Radboudumc Master Prize for Mark van Goor18 June 2019
Mark van Goor, theme Renal disorders, received the Radboudumc Master Prize for his MSc thesis entitled “High-resolution structure of the renal calcium channel TRPV5 revealed with cryo-EM”, which was based on his internship at the lab of Prof. Yifan Cheng, USA.read more
Exome sequencing in routine diagnostics: a generic test for 254 patients with primary immunodeficiencies18 June 2019
Exome sequencing may provide a genetic diagnosis in a significant number of patients in a single genetic test. Alexander Hoischen and Mihai Netea, theme Infectious diseases and global health, and colleagues, published their results in Genome Medicine.read more
Lowering cholesterol is not enough to reduce hyperactivity of the immune system14 June 2019
In Cell Metabolism, Siroon Bekkering, theme Vascular damage, and colleagues, provides a novel potential explanation for the residual cardiovascular risk, related to persistent activation of the immune system in patients with hypercholesterolemia who are treated with statins.read more