Outputs (20)

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. https://doi.org/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 about The validity and inter-device variability of the Apple Watch™ for measuring maximal heart rate.

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 about Using microtechnology to evaluate the between and within match variability of professional Twenty20 cricket fast bowlers.

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., Abt, G., & Garrett, A. (2015). Effectiveness of short-term heat acclimation on intermittent exercise in thermoneutral and hot environments. Extreme Physiology and Medicine, 4(1), A120. https://doi.org/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 about Effectiveness of short-term heat acclimation on intermittent exercise in thermoneutral and hot environments.

Investigating strength and range of motion of the hip complex in ice hockey athletes (2015)
Journal Article
Wilcox, C. R. J., Osgood, C. T., White, H. S. F., & Vince, R. V. (2015). Investigating strength and range of motion of the hip complex in ice hockey athletes. Journal of sport rehabilitation, 24(3), 300-306. https://doi.org/10.1123/jsr.2014-0175

CONTEXT: Ice hockey athletes frequently injure the hip complex via a non-contact mechanism. We investigated patterns of strength and range of motion (ROM) to establish major differences compared to soccer athletes. Soccer athletes were compared to ic... Read More about Investigating strength and range of motion of the hip complex in ice hockey athletes.

Genetic factors associated with exercise performance in atmospheric hypoxia (2015)
Journal Article
Hennis, P. J., Grocott, M. P. W., Levett, D. Z. H., Montgomery, H. M., & O'Doherty, A. F. (2015). Genetic factors associated with exercise performance in atmospheric hypoxia. Sports medicine, 45(5), 745-761. https://doi.org/10.1007/s40279-015-0309-8

Background and Objective ‘Natural selection’ has been shown to have enriched the genomes of high-altitude native populations with genetic variants of advantage in this hostile hypoxic environment. In lowlanders who ascend to altitude, genetic factors... Read More about Genetic factors associated with exercise performance in atmospheric hypoxia.

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. https://doi.org/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 about Cardiometabolic health benefits of a six-week high-intensity interval training intervention : a case study.

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

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 about Effectiveness of a six-week high-intensity interval training programme on cardiometabolic markers in sedentary males.

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., Abt, G., & Lovell, R. (2015). Individualisation of time-motion analysis : a method comparison and case report series. International journal of sports medicine, 36(1), 41-48. https://doi.org/10.1055/s-0034-1384547

© 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 about Individualisation of time-motion analysis : a method comparison and case report series.

Aspartame in conjunction with carbohydrate reduces insulin levels during endurance exercise (2012)
Journal Article
Siegler, J., Howell, K., Vince, R., Bray, J., Towlson, C., Peart, D., Mellor, D., & Atkin, S. (2012). Aspartame in conjunction with carbohydrate reduces insulin levels during endurance exercise. Journal of the International Society of Sports Nutrition, 9, Article 36. https://doi.org/10.1186/1550-2783-9-36

Background: As most sport drinks contain some form of non-nutritive sweetener (e.g. aspartame), and with the variation in blood glucose regulation and insulin secretion reportedly associated with aspartame, a further understanding of the effects on i... Read More about Aspartame in conjunction with carbohydrate reduces insulin levels during endurance exercise.

Sodium bicarbonate supplementation and ingestion timing: Does it matter? (2012)
Journal Article
Siegler, J. C., Marshall, P. W., Bray, J., & Towlson, C. (2012). Sodium bicarbonate supplementation and ingestion timing: Does it matter?. Journal of strength and conditioning research, 26(7), 1953-1958. https://doi.org/10.1519/JSC.0b013e3182392960

Although a considerable amount of literature exists on the ergogenic potential of ingesting sodium bicarbonate (NaHCO3) before short-term, high-intensity exercise, very little exists on optimal loading times before exercise. The purpose of this study... Read More about Sodium bicarbonate supplementation and ingestion timing: Does it matter?.