Edinburgh Napier University

Validity of the iPhone M7 Motion Coprocessor to Estimate Physical Activity During Structured and Free-Living Activities in Healthy Adults

Journal Article

Thomson, N. K., McMichan, L., Macrae, E., Baker, J. S., Muggeridge, D. J., & Easton, C. (2021)

Validity of the iPhone M7 Motion Coprocessor to Estimate Physical Activity During Structured and Free-Living Activities in Healthy Adults. Journal for the Measurement of Physical Behaviour, 4(3), 212-219. https://doi.org/10.1123/jmpb.2020-0067

Modern smartphones such as the iPhone contain an integrated accelerometer, which can be used to measure body movement and estimate the volume and intensity of physical activit...

Exercise decreases PP2A-specific reversible thiol oxidation in human erythrocytes: Implications for redox biomarkers

Journal Article

Muggeridge, D. J., Crabtree, D. R., Tuncay, A., Megson, I. L., Davison, G., & Cobley, J. N. (2022)

Exercise decreases PP2A-specific reversible thiol oxidation in human erythrocytes: Implications for redox biomarkers. Free Radical Biology and Medicine, 182, 73-78. https://doi.org/10.1016/j.freeradbiomed.2022.02.019

New readily accessible systemic redox biomarkers are needed to understand the biological roles reactive oxygen species (ROS) play in humans because overtly flawed, technically...

Measurement of Heart Rate Using the Polar OH1 and Fitbit Charge 3 Wearable Devices in Healthy Adults During Light, Moderate, Vigorous, and Sprint-Based Exercise: Validation Study

Journal Article

Muggeridge, D. J., Hickson, K., Davies, A. V., Giggins, O. M., Megson, I. L., Gorely, T., & Crabtree, D. R. (2021)

Measurement of Heart Rate Using the Polar OH1 and Fitbit Charge 3 Wearable Devices in Healthy Adults During Light, Moderate, Vigorous, and Sprint-Based Exercise: Validation Study. JMIR mHealth and uHealth, 9(3), https://doi.org/10.2196/25313

Background: Accurate, continuous heart rate measurements are important for health assessment, physical activity, and sporting performance, and the integration of heart rate me...

The effects of two different doses of ultraviolet-A light exposure on nitric oxide metabolites and cardiorespiratory outcomes

Journal Article

Monaghan, C., McIlvenna, L. C., Liddle, L., Burleigh, M., Weller, R. B., Fernandez, B. O., …Easton, C. (2018)

The effects of two different doses of ultraviolet-A light exposure on nitric oxide metabolites and cardiorespiratory outcomes. European Journal of Applied Physiology, 118(5), 1043-1052. https://doi.org/10.1007/s00421-018-3835-x

PURPOSE: The present study investigated different doses of ultraviolet-A (UV-A) light on plasma nitric oxide metabolites and cardiorespiratory variables. METHODS: Ten healthy...

CD34+ progenitors are predictive of mortality and are associated with physical activity in cardiovascular disease patients

Journal Article

Muggeridge, D., Dodd, J., & Ross, M. D. (2021)

CD34+ progenitors are predictive of mortality and are associated with physical activity in cardiovascular disease patients. Atherosclerosis, 333, 108-115. https://doi.org/10.1016/j.atherosclerosis.2021.07.004

Background and aims Circulating progenitor cells (CPCs) play an important role in vascular repair and can influence cardiovascular (CV) health and longevity. Exercise is known...

Co-ingestion of Antioxidant Drinks With an Unhealthy Challenge Meal Fails to Prevent Post-prandial Endothelial Dysfunction: An Open-Label, Crossover Study in Older Overweight Volunteers

Journal Article

Muggeridge, D. J., Goszcz, K., Treweeke, A., Adamson, J., Hickson, K., Crabtree, D., & Megson, I. L. (2019)

Co-ingestion of Antioxidant Drinks With an Unhealthy Challenge Meal Fails to Prevent Post-prandial Endothelial Dysfunction: An Open-Label, Crossover Study in Older Overweight Volunteers. Frontiers in Physiology, 10, https://doi.org/10.3389/fphys.2019.01293

Eating a high calorie meal is known to induce endothelial dysfunction and it is reported that consuming drinks rich in antioxidants may be protective against this. In this stu...

Venous occlusion during blood collection decreases plasma nitrite but not nitrate concentration in humans

Journal Article

Liddle, L., Burleigh, M. C., Monaghan, C., Muggeridge, D. J., & Easton, C. (2020)

Venous occlusion during blood collection decreases plasma nitrite but not nitrate concentration in humans. Nitric Oxide: Biology and Chemistry, 102, 21-27. https://doi.org/10.1016/j.niox.2020.06.001

Background: To maintain vascular tone and blood flow when tissue oxygenation is reduced, nitrite anions are reduced to nitric oxide (NO). From a practical perspective, it is u...

Patterns of Sedentary Behaviour in Female Office Workers

Journal Article

Kirk, A., Gibson, A., Laverty, K., Muggeridge, D., Kelly, L., & Hughes, A. (2016)

Patterns of Sedentary Behaviour in Female Office Workers. AIMS public health, 3(3), 423-431. https://doi.org/10.3934/publichealth.2016.3.423

Background: Prolonged sedentary behaviour is associated with poor health outcomes. Office workers often engage in excessive sedentary behaviour, however limited research repor...

Objectively Measured Sedentary Time in Children and Their Parents

Journal Article

R Hughes, A., J Muggeridge, D., Gibson, A., Johnstone, A., & Kirk, A. (2016)

Objectively Measured Sedentary Time in Children and Their Parents. AIMS public health, 3(4), 823-836. https://doi.org/10.3934/publichealth.2016.4.823

Background: No studies have examined associations in objectively measured sedentary time between parents and young people using activPAL posture sensors, which provide a more ...

Untargeted Metabolomics Profiling of an 80.5 km Simulated Treadmill Ultramarathon

Journal Article

Howe, C. C., Alshehri, A., Muggeridge, D., Mullen, A., Boyd, M., Spendiff, O., …Watson, D. (2018)

Untargeted Metabolomics Profiling of an 80.5 km Simulated Treadmill Ultramarathon. Metabolites, 8(1), https://doi.org/10.3390/metabo8010014

Metabolomic profiling of nine trained ultramarathon runners completing an 80.5 km self-paced treadmill-based time trial was carried out. Plasma samples were obtained from veno...