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Walking cadence required to elicit criterion moderate-intensity physical activity is moderated by fitness status (2019)
Journal Article
Abt, G., Bray, J., Myers, T., & Benson, A. C. (in press). Walking cadence required to elicit criterion moderate-intensity physical activity is moderated by fitness status. Journal of sports sciences, 1-7. https://doi.org/10.1080/02640414.2019.1612505

The aims of this study were to estimate the walking cadence required to elicit a VO2reserve (VO2R) of 40% and determine if fitness status moderates the relationship between walking cadence and %VO2R. Twenty participants (10 male, mean(s) age 32(10) y... Read More

Measuring Moderate-Intensity Exercise with the Apple Watch: Validation Study (2018)
Journal Article
Abt, G., Bray, J., & Benson, A. C. (in press). Measuring Moderate-Intensity Exercise with the Apple Watch: Validation Study. JMIR Cardio, 2(1), (e6). doi:10.2196/cardio.8574. ISSN 2561-1011

Background: Moderate fitness levels and habitual exercise have a protective effect for cardiovascular disease, stroke, type 2 diabetes, and all-cause mortality. The Apple Watch displays exercise completed at an intensity of a brisk walk or above usin... Read More

The validity and inter-device variability of the Apple Watch™ for measuring maximal heart rate (2017)
Journal Article
Abt, G., Bray, J., & Benson, A. C. (2018). The validity and inter-device variability of the Apple Watch™ for measuring maximal heart rate. Journal of sports sciences, 36(13), 1447-1452. doi:10.1080/02640414.2017.1397282

Maximal heart rate (HRmax) is a fundamental measure used in exercise prescription. The Apple Watch measures heart rate yet the validity and inter-device variability of the device for measuring HRmax are unknown. Fifteen participants completed a maxim... Read More

Using microtechnology to evaluate the between and within match variability of professional Twenty20 cricket fast bowlers (2016)
Journal Article
Abt, G., Bray, J., & Fogarty, M. (2016). Using microtechnology to evaluate the between and within match variability of professional Twenty20 cricket fast bowlers. Professional strength and conditioning, 43(December), 19-26

This study assessed the between- and within-match variability of external training load measures during two consecutive Twenty20 cricket seasons in professional fast bowlers. Global positioning system (GPS) and accelerometer data (PlayerLoad™) were c... Read More

Effectiveness of short-term heat acclimation on intermittent exercise in thermoneutral and hot environments (2015)
Journal Article
Nation, F., Birkett, M., Gleadall-Siddall, D., Burke, R., Towlson, C., Bray, J., …Garrett, A. (2015). Effectiveness of short-term heat acclimation on intermittent exercise in thermoneutral and hot environments. Extreme Physiology and Medicine, 4(1), A120. doi:10.1186/2046-7648-4-S1-A120

It is well-established that repetition of heat stress exposure has been shown to facilitate adaptations to the heat but these protocols have tended to be of a fixed work intensity, continuous exercise, long-term in duration (>7 days) and use hydratio... Read More

Cardiometabolic health benefits of a six-week high-intensity interval training intervention : a case study (2014)
Journal Article
Siddall-Gleadall, D., Gritt, J., Burke, R., O'Carroll, G., Bray, J., Ingle, L., & Garrett, A. (2014). Cardiometabolic health benefits of a six-week high-intensity interval training intervention : a case study. Journal of sports sciences, 32(Supplement 2), s28-s32. doi:10.1080/02640414.2014.968381

Regular physical activity is recommended for patients diagnosed with impaired glucose tolerance (IGT) and Type 2 Diabetes. However, "lack of time" is a common cited barrier in achieving the recommended weekly physical activity guidelines. High-intens... Read More

Effectiveness of a six-week high-intensity interval training programme on cardiometabolic markers in sedentary males (2014)
Conference Proceeding
Gleadall-Siddall, D., Burke, R., Gritt, J., O'Carroll, G., Bray, J., Ingle, L., & Garrett, A. (2014). Effectiveness of a six-week high-intensity interval training programme on cardiometabolic markers in sedentary males. doi:10.1080/02640414.2014.968390

High-intensity interval training (HIT) has been proposed as an effective, time efficient strategy to elicit similar cardiometabolic health benefits as traditional moderate-intensity endurance training. This is an important consideration as "lack of t... Read More

Individualisation of time-motion analysis : a method comparison and case report series (2014)
Journal Article
Hunter, F., Bray, J., Towlson, C., Smith, M., Barrett, S., Madden, J., …Lovell, R. (2015). Individualisation of time-motion analysis : a method comparison and case report series. International journal of sports medicine, 36(1), (41-48). doi:10.1055/s-0034-1384547. ISSN 0172-4622

© Georg Thieme Verlag KG. This study compared the intensity distribution of time-motion analysis data, when speed zones were categorized by different methods. 12 U18 players undertook a routine battery of laboratory- and field-based assessments to de... Read More