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Human skeletal muscle is refractory to the anabolic effects of leucine during the postprandial muscle-full period in older men (2017)
Journal Article
Mitchell, W. K., Phillips, B. E., Hill, I., Greenhaff, P. L., Lund, J. N., Williams, J. P., …Atherton, P. J. (2017). Human skeletal muscle is refractory to the anabolic effects of leucine during the postprandial muscle-full period in older men. Clinical Science, 131(21), https://doi.org/10.1042/CS20171230

Leucine modulates muscle protein synthesis (MPS), with potential to facilitate accrual/maintenance of muscle mass. Animal models suggest that leucine boluses shortly after meals may prolong MPS and delay onset of a “muscle-full” state. However, the e... Read More about Human skeletal muscle is refractory to the anabolic effects of leucine during the postprandial muscle-full period in older men.

Impact of the calcium form of ?-hydroxy-?-methylbutyrate upon human skeletal muscle protein metabolism (2017)
Journal Article
Wilkinson, D. J., Hossain, T., Limb, M. C., Phillips, B. E., Lund, J., Williams, J. P., …Atherton, P. J. (2018). Impact of the calcium form of β-hydroxy-β-methylbutyrate upon human skeletal muscle protein metabolism. Clinical Nutrition, 37(6), 2068-2075. https://doi.org/10.1016/j.clnu.2017.09.024

© 2017 The Authors Background & aims: β-hydroxy-β-methylbutyrate (HMB) is purported as a key nutritional supplement for the preservation of muscle mass in health, disease and as an ergogenic aid in exercise. Of the two available forms of HMB (calcium... Read More about Impact of the calcium form of ?-hydroxy-?-methylbutyrate upon human skeletal muscle protein metabolism.

Effects of leucine-enriched essential amino acid and whey protein bolus dosing upon skeletal muscle protein synthesis at rest and after exercise in older women (2017)
Journal Article
Wilkinson, D. J., Bukhari, S. S., Phillips, B. E., Limb, M. C., Cegielski, J., Brook, M. S., …Atherton, P. J. (2018). Effects of leucine-enriched essential amino acid and whey protein bolus dosing upon skeletal muscle protein synthesis at rest and after exercise in older women. Clinical Nutrition, 37(6), 2011-2021. https://doi.org/10.1016/j.clnu.2017.09.008

© 2017 The Authors Background & aims: Impaired anabolic responses to nutrition and exercise contribute to loss of skeletal muscle mass with ageing (sarcopenia). Here, we tested responses of muscle protein synthesis (MPS), in the under represented gr... Read More about Effects of leucine-enriched essential amino acid and whey protein bolus dosing upon skeletal muscle protein synthesis at rest and after exercise in older women.

The efficacy of unsupervised home-based exercise regimens in comparison to supervised lab-based exercise training upon cardio-respiratory health facets (2017)
Journal Article
Blackwell, J., Atherton, P. J., Smith, K., Doleman, B., Williams, J. P., Lund, J. N., & Phillips, B. E. (2017). The efficacy of unsupervised home-based exercise regimens in comparison to supervised lab-based exercise training upon cardio-respiratory health facets. Physiological Reports, 5(16), Article e13390. https://doi.org/10.14814/phy2.13390

Supervised high-intensity interval training (HIIT) can rapidly improve cardiorespiratory fitness (CRF). However, the effectiveness of time-efficient unsupervised home-based interventions is unknown. Eighteen volunteers completed either: laboratory-HI... Read More about The efficacy of unsupervised home-based exercise regimens in comparison to supervised lab-based exercise training upon cardio-respiratory health facets.

A 4-week, lifestyle-integrated, home-based exercise training programme elicits improvements in physical function and lean mass in older men and women: a pilot study (2017)
Journal Article
Cegielski, J., Brook, M. S., Quinlan, J. I., Wilkinson, D. J., Smith, K., Atherton, P. J., & Phillips, B. E. (2017). A 4-week, lifestyle-integrated, home-based exercise training programme elicits improvements in physical function and lean mass in older men and women: a pilot study. F1000Research, https://doi.org/10.12688/f1000research.11894.2

Background: Developing alternative exercise programmes that can alleviate certain barriers to exercise such as psychological, environmental or socio-economical barriers, but provide similar physiological benefits e.g. increases in muscle mass and str... Read More about A 4-week, lifestyle-integrated, home-based exercise training programme elicits improvements in physical function and lean mass in older men and women: a pilot study.

A practical and time-efficient high-intensity interval training program modifies cardio-metabolic risk factors in adults with risk factors for type ii diabetes (2017)
Journal Article
Phillips, B. E., Kelly, B. M., Lilja, M., Ponce-González, J. G., Brogan, R. J., Morris, D. L., …Timmons, J. A. (2017). A practical and time-efficient high-intensity interval training program modifies cardio-metabolic risk factors in adults with risk factors for type ii diabetes. Frontiers in Endocrinology, 8, Article 229. https://doi.org/10.3389/fendo.2017.00229

Introduction: Regular physical activity (PA) can reduce the risk of developing type 2 diabetes, but adherence to time-orientated (150 min week−1 or more) PA guidelines is very poor. A practical and time-efficient PA regime that was equally efficaciou... Read More about A practical and time-efficient high-intensity interval training program modifies cardio-metabolic risk factors in adults with risk factors for type ii diabetes.

Physiological adaptations to resistance exercise as a function of age (2017)
Journal Article
Phillips, B. E., Williams, J. P., Greenhaff, P. L., Smith, K., & Atherton, P. J. (2017). Physiological adaptations to resistance exercise as a function of age. JCI insight, 2(17), Article e95581. https://doi.org/10.1172/jci.insight.95581

BACKGROUND. The impact of resistance exercise training (RE-T) across the life span is poorly defined. METHODS. To resolve this, we recruited three distinct age cohorts of young (18–28 years; n = 11), middle-aged (45–55 years; n = 20), and... Read More about Physiological adaptations to resistance exercise as a function of age.

A novel D2O tracer method to quantify RNA turnover as a biomarker of de novo ribosomal biogenesis, in vitro, in animal models, and in human skeletal muscle (2017)
Journal Article
Brook, M. S., Wilkinson, D., Mitchell, W. K., Lund, J. N., Phillips, B. E., Szewczyk, N. J., …Atherton, P. J. (2017). A novel D2O tracer method to quantify RNA turnover as a biomarker of de novo ribosomal biogenesis, in vitro, in animal models, and in human skeletal muscle. AJP - Endocrinology and Metabolism, 313(6), Article E681-E689. https://doi.org/10.1152/ajpendo.00157.2017

Current methods to quantify in vivo RNA dynamics are limited. Here, we developed a novel stable isotope (D2O) methodology to quantify RNA synthesis (i.e., ribosomal biogenesis) in cells, animal models, and humans. First, proliferating C2C12 cells wer... Read More about A novel D2O tracer method to quantify RNA turnover as a biomarker of de novo ribosomal biogenesis, in vitro, in animal models, and in human skeletal muscle.

Oesophageal Doppler guided optimization of cardiac output does not increase visceral microvascular blood flow in healthy volunteers (2017)
Journal Article
Heinink, T. P., Read, D. J., Mitchell, W. K., Bhalla, A., Lund, J. N., Phillips, B. E., & Williams, J. P. (2018). Oesophageal Doppler guided optimization of cardiac output does not increase visceral microvascular blood flow in healthy volunteers. Clinical Physiology and Functional Imaging, 38(2), 213-219. https://doi.org/10.1111/cpf.12401

Background Oesophageal Doppler monitoring (ODM) is used clinically to optimize cardiac output (CO) and guide fluid therapy. Despite limited experimental evidence, it is assumed that increasing CO increases visceral microvascular blood flow (MBF).... Read More about Oesophageal Doppler guided optimization of cardiac output does not increase visceral microvascular blood flow in healthy volunteers.