Personal profile
Research Interests
Biography
In 2013 I was awarded my PhD from Coventry University for my work exploring the direct treatment of physiologically relevant concentrations of caffeine on isolated muscle performance. Although I continue to develop this work in human and animal models, my more recent research interests have been examining how mechanical properties of skeletal muscle change in response to increasing age. I have worked with leading international collaborators in Australia, Belgium, Brazil, Canada, France, UK and USA on a number of research projects including skeletal muscle ageing, temperature effects on skeletal muscle and locotomory performance in a number of different vertebrae species. We are continuing this collaborative work for upcoming projects whilst looking to establish new research links for our ageing research. Current work examining the effect of intramuscular fat accumulation on isolated muscle performance and the influence of this on muscle ageing is being supported by grant funding from TANITA.
Area of Expertise:
Skeletal muscle mechanics using the work loop technique
Vision Statement
Although valuable, previous techniques examining isolated muscle mechanics have poor relation to real life muscle function. By using the work loop technique we can get a better understanding of skeletal muscle performance during dynamic activity similar to what would occur in vivo. Our research group are world leaders in this technique and my interests focus on how this method can be applied to improve our understanding of muscle mechanics in relation to human muscle performance. My key areas of interest are exploring direct responses to ergogenic aids and the measurement and prevention of the age related decline in muscle performance.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being
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Collaborations and top research areas from the last five years
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Reliability of Surface EMG During High-Risk Single-Leg Jump Landing and 90° Sidestep Cutting in Female Footballers
Frampton, A., Hill, M., Clarke, N., Eustace, S. & Tallis, J., 25 Feb 2026, In: Applied Sciences. 16, 5, 16 p., 2236.Research output: Contribution to journal › Article › peer-review
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Adverse Effects of High-Fat Diet Consumption on Contractile Mechanics of Isolated Mouse Skeletal Muscle are Reduced When Supplemented With Resveratrol
Shelley, S., James, R. S., Eustace, S., Turner, M., Brett, R., Eyre, E. & Tallis, J., 11 May 2025, (E-pub ahead of print) In: Journal of Physiology. 603, 9, p. 2675-2698 24 p.Research output: Contribution to journal › Article › peer-review
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Between Session Reliability Of Traditional And Temporal Bilateral And Unilateral Dynamic Strength Index Calculations And Association With Sprint And Change Of Direction Performance
Tallis, J., Bolt, L., Morris, R., Suchomel, T. J. & Eustace, S., 5 Dec 2025, (E-pub ahead of print) In: Journal of Strength and Conditioning Research. 40, 2, p. 167-179 13 p.Research output: Contribution to journal › Article › peer-review
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Diffusion And Physical Constraints Limit Oxidative Capacity, Capillary Supply And Size Of Muscle Fibres In Mice And Humans
Degens, H., Guy, M., Tallis, J., Bosutti, A., Venckunas, T., Adeniran, I., Wust, R. & Hendrickse, P., 28 Apr 2025, (Accepted/In press).Research output: Contribution to conference › Paper › peer-review
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Improved Functional Movement Skills Reduce Drop Landing Injury Risk Movement Patterns in Male and Female Youth Soccer Players
Duncan, M., Tallis, J., Guimarães-Ferreira, L., G. Martins, R. M., Crotti, M., Pattison, W., Hammami, R. & Lyons, M., 21 Nov 2025, (E-pub ahead of print) In: Pediatric Exercise Science. (In-Press), p. (In-Press)Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure)
Thesis
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Effect of physiological caffeine concentration on isolated skeletal muscle force, power and fatigue resistance
Tallis, J. (Author), James, R. (Supervisor), Cox, V. (Supervisor) & Duncan, M. (Supervisor), 2013Student thesis: Doctoral Thesis › Doctor of Philosophy
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