at devising new research questions and communicating these ideas in writing. Hence, Kevin was banished from spending too much time in the laboratory. He built an international reputation in all aspects of tracer methodology and protein metabolism during his time in Galveston. Indeed, several of Kevin
Search Results
Celebrating the Professional Life of Professor Kevin D. Tipton (1961–2022)
Oliver C. Witard, Arny A. Ferrando, and Stuart M. Phillips
Exercise Plus Presleep Protein Ingestion Increases Overnight Muscle Connective Tissue Protein Synthesis Rates in Healthy Older Men
Andrew M. Holwerda, Jorn Trommelen, Imre W.K. Kouw, Joan M. Senden, Joy P.B. Goessens, Janneau van Kranenburg, Annemie P. Gijsen, Lex B. Verdijk, and Luc J.C. van Loon
stiffness ( Wood et al., 2014 ), which contribute to the age-related decline in muscle strength and functional capacity ( Azizi et al., 2017 ; Kragstrup et al., 2011 ). Skeletal muscle tissue (mal)adaptation is regulated by the net balance between muscle protein synthesis and breakdown rates, with a tissue
No Difference Between the Effects of Supplementing With Soy Protein Versus Animal Protein on Gains in Muscle Mass and Strength in Response to Resistance Exercise
Mark Messina, Heidi Lynch, Jared M. Dickinson, and Katharine E. Reed
For a variety of reasons, dietary protein has gained increased research attention in recent years. Evidence shows that consuming protein in excess of the U.S. recommended dietary allowance has health benefits and that for many population groups, the recommended dietary allowance of protein (0.8 g
Protein Recommendations for Weight Loss in Elite Athletes: A Focus on Body Composition and Performance
Amy J. Hector and Stuart M. Phillips
restriction, strategies to promote high-quality weight loss (i.e., the loss of fat mass while maintaining LBM) are of importance for elite athletes. The normal maintenance of LBM is determined by continuously opposing and fluctuating rates of muscle protein synthesis (MPS) and muscle protein breakdown (MPB
Dietary Protein for Training Adaptation and Body Composition Manipulation in Track and Field Athletes
Oliver C. Witard, Ina Garthe, and Stuart M. Phillips
Dietary protein is widely regarded as a key nutrient for allowing optimal training adaptation ( Tipton, 2008 ) and optimizing body composition ( Hector & Phillips, 2018 ; Murphy et al., 2015 ) in athletes including track and field athletes. Track and field athletics encompasses a broad spectrum of
Coingestion of Collagen With Whey Protein Prevents Postexercise Decline in Plasma Glycine Availability in Recreationally Active Men
Thorben Aussieker, Tom A.H. Janssen, Wesley J.H. Hermans, Andrew M. Holwerda, Joan M. Senden, Janneau M.X. van Kranenburg, Joy P.B. Goessens, Tim Snijders, and Luc J.C. van Loon
Exercise increases muscle protein synthesis rates ( Biolo et al., 1995 ). This includes substantial increases in both myofibrillar ( Wilkinson et al., 2008 ) and muscle connective protein ( Holm et al., 2010 ; Holwerda et al., 2021 ; Trommelen et al., 2020 ) synthesis rates. Whereas the impact of
Nutrition for the Prevention and Treatment of Injuries in Track and Field Athletes
Graeme L. Close, Craig Sale, Keith Baar, and Stephane Bermon
repair. Given the crucial role of dietary protein in muscle protein turnover, it is not surprising that much attention has been given to dietary protein in the prevention of muscle injuries. It is accepted that the provision of dietary proteins enhances the adaptive processes to both resistance- and
Making Sense of Muscle Protein Synthesis: A Focus on Muscle Growth During Resistance Training
Oliver C. Witard, Laurent Bannock, and Kevin D. Tipton
Muscle protein synthesis (MPS) is the metabolic process that describes the incorporation of amino acids into bound skeletal muscle proteins. Muscle proteins can be crudely classified into the contractile myofibrillar proteins (i.e., myosin, actin, tropomyosin, troponin) and the energy producing
The Postprandial Plasma Amino Acid Response Does Not Differ Following the Ingestion of a Solid Versus a Liquid Milk Protein Product in Healthy Adult Females
Glenn A.A. van Lieshout, Jorn Trommelen, Jean Nyakayiru, Janneau van Kranenburg, Joan M. Senden, Lex B. Verdijk, and Luc J.C. van Loon
It has been well-established that protein ingestion increases muscle protein synthesis rates ( Biolo et al., 1997 ; Trommelen et al., 2019 ). The postprandial rise in muscle protein synthesis plays a key role in muscle maintenance and is instrumental in supporting the skeletal muscle adaptive
The Anabolic Response to Protein Ingestion During Recovery From Exercise Has No Upper Limit in Magnitude and Duration In Vivo in Humans: A Commentary
Oliver C. Witard and Samuel Mettler
An elegant recent study published by Trommelen et al. ( 2023 ) in Cell Reports Medicine provides unique insights into the postprandial protein handling of a “meal-like” (25 g) or “feast-like” (100 g) dose of protein ingested following an intense (60 min, 4× 10 sets/reps @65%–80% one repetition
