All Outputs (260)

Change of direction speed and technique modification training improves 180° turning performance, kinetics, and kinematics (2021)
Journal Article
Dos’Santos, T., Thomas, C., McBurnie, A., Comfort, P., & Jones, P. (2021). Change of direction speed and technique modification training improves 180° turning performance, kinetics, and kinematics. Sports, 9(6), e73. https://doi.org/10.3390/sports9060073

This study aimed to examine the effects of change of direction (COD) speed and technique modification training on 180° turning performance (completion time, ground contact time [GCT], and exit velocity), kinetics, and kinematics. A non-randomised 6 w... Read More about Change of direction speed and technique modification training improves 180° turning performance, kinetics, and kinematics.

Effects of variations in resistance training frequency on strength development in well-trained populations and implications for in-season athlete training : a systematic review and meta-analysis (2021)
Journal Article
Cuthbert, M., Haff, G., Arent, S., Ripley, N., McMahon, J., Evans, M., & Comfort, P. (2021). Effects of variations in resistance training frequency on strength development in well-trained populations and implications for in-season athlete training : a systematic review and meta-analysis. Sports Medicine, 51(9), 1967-1982. https://doi.org/10.1007/s40279-021-01460-7

In-season competition and tournaments for team sports can be both long and congested, with some sports competing up to three times per week. During these periods of time, athletes need to prepare technically, tactically and physically for the next fi... Read More about Effects of variations in resistance training frequency on strength development in well-trained populations and implications for in-season athlete training : a systematic review and meta-analysis.

Electromyographical Differences Between the Hyperextension and Reverse-Hyperextension (2021)
Journal Article
Cuthbert, M., Ripley, N. J., Suchomel, T. J., Alejo, R., McMahon, J. J., & Comfort, P. (2021). Electromyographical Differences Between the Hyperextension and Reverse-Hyperextension. Journal of Strength and Conditioning Research, 35(6), 1477-1483. https://doi.org/10.1519/jsc.0000000000004049

The aims of this study were to compare muscle activation of the erector spinae (ES), gluteus maximus (GMax), and biceps femoris (BF) during the hyperextension (HE) and reverse-HE (RHE) exercises. Ten subjects (age, 23 ± 4 years; height, 175.9 ± 6.9 c... Read More about Electromyographical Differences Between the Hyperextension and Reverse-Hyperextension.

Comparing the effects of plyometric and isometric strength training on dynamic and isometric force-time characteristics (2021)
Journal Article
Lum, D., Comfort, P., M. Barbosa, T., & Balasekaran, G. (2022). Comparing the effects of plyometric and isometric strength training on dynamic and isometric force-time characteristics. Biology of Sport, 39(1), 189-197. https://doi.org/10.5114/BIOLSPORT.2022.103575

The purpose of the study was to compare the change in dynamic and isometric force-time
characteristics after plyometric (PLYO) or isometric strength training (ISO). Twenty-two endurance runners
(age = 37 ± 6 years,stature = 1.71 ± 0.05 m, body mass... Read More about Comparing the effects of plyometric and isometric strength training on dynamic and isometric force-time characteristics.

Biomechanical determinants of performance and injury risk during cutting : a performance-injury conflict? (2021)
Journal Article
Dos'Santos, T., Thomas, C., McBurnie, A., Comfort, P., & Jones, P. (2021). Biomechanical determinants of performance and injury risk during cutting : a performance-injury conflict?. Sports Medicine, 51(9), 1983-1998. https://doi.org/10.1007/s40279-021-01448-3

Most cutting biomechanical studies investigate performance and knee joint load determinants independently. This is surprising because cutting is an important action linked to performance and non-contact anterior cruciate ligament (ACL) injuries. The... Read More about Biomechanical determinants of performance and injury risk during cutting : a performance-injury conflict?.

Biomechanical Effects of a 6-Week Change of Direction Speed and Technique Modification Intervention: Implications for Change of Direction Side step Performance (2021)
Journal Article
Dos'Santos, T., Thomas, C., Comfort, P., & Jones, P. A. (2021). Biomechanical Effects of a 6-Week Change of Direction Speed and Technique Modification Intervention: Implications for Change of Direction Side step Performance. Journal of Strength and Conditioning Research, 36(10), 2780-2791. https://doi.org/10.1519/jsc.0000000000003950

The aim of this study was to evaluate the biomechanical effects of change of direction (COD) speed and technique modification training on COD performance (completion time, ground contact time [GCT], and exit velocity) during 45° (CUT45) and 90° (CUT9... Read More about Biomechanical Effects of a 6-Week Change of Direction Speed and Technique Modification Intervention: Implications for Change of Direction Side step Performance.

Unilateral vs. bilateral hamstring strength assessments : comparing reliability and inter-limb asymmetries in female soccer players (2021)
Journal Article

The aims in the present study were to assess reliability for two unilateral and two bilateral field-based hamstring assessments and compare magnitude, direction and agreement of inter-limb asymmetry between tests and sessions. Twenty-nine female socc... Read More about Unilateral vs. bilateral hamstring strength assessments : comparing reliability and inter-limb asymmetries in female soccer players.

Modifiable risk factors of hamstring strain injury : assessment, performance and training (2021)
Thesis
Ripley, N. Modifiable risk factors of hamstring strain injury : assessment, performance and training. (Thesis). University of Salford

Hamstring strain injuries (HSIs), which are typically sustained during high velocity movements (i.e., sprinting or high velocity running), commonly involves the bicep femoris long head (BFLH). To date, the Nordic hamstring exercise (NHE) is the most... Read More about Modifiable risk factors of hamstring strain injury : assessment, performance and training.

Association of jumping ability and maximum strength with dive distance in swimmers (2020)
Journal Article
Calderbank, J., Comfort, P., & McMahon, J. (2021). Association of jumping ability and maximum strength with dive distance in swimmers. International Journal of Sports Physiology and Performance, 16(2), 296-303. https://doi.org/10.1123/ijspp.2019-0773

Purpose: The aim of the current study was to investigate the relationship between dive distance (DD) and countermovement jump (CMJ) height, track start CMJ height, countermovement broad jump (CMBJ) distance, track start broad jump distance, and isome... Read More about Association of jumping ability and maximum strength with dive distance in swimmers.

Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction (2020)
Journal Article
Thomas, C., Dos’Santos, T., Comfort, P., & Jones, P. (2020). Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction. Sports Biomechanics, 1-14. https://doi.org/10.1080/14763141.2020.1830160

Change of direction manoeuvres is important in soccer and associated with non-contact anterior cruciate ligament injury, yet it is not known how the mechanics differentiate between males and females during 180° turns. Twenty-eight soccer players (14... Read More about Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction.

Duplex ultrasound assessment of early-stage peripheral artery disease in the lower limbs of Zimbabwean diabetic patients (2020)
Thesis
Tityiwe, J. Duplex ultrasound assessment of early-stage peripheral artery disease in the lower limbs of Zimbabwean diabetic patients. (Thesis). University of Salford

Keywords: Spectral Doppler imaging, peak systolic velocity, pulsatility index, vessel diameter, resistive index, nitrite, nitric oxide, systolic blood pressure, diastolic blood pressure.

Objectives: i) To determine the repeatability of ultrasound... Read More about Duplex ultrasound assessment of early-stage peripheral artery disease in the lower limbs of Zimbabwean diabetic patients.

On "The Basics of Training for Muscle Size and Strength". (2020)
Journal Article

Letter to the editor.

Autoregulation in resistance training : addressing the inconsistencies (2020)
Journal Article
Greig, L., Stephens Hemingway, B., Aspe, R., Cooper, K., Comfort, P., & Swinton, P. (2020). Autoregulation in resistance training : addressing the inconsistencies. Sports Medicine, 50(11), 1873-1887. https://doi.org/10.1007/s40279-020-01330-8

Autoregulation is a process that is used to manipulate training based primarily on the measurement of an individual's performance or their perceived capability to perform. Despite being established as a training framework since the 1940s, there has b... Read More about Autoregulation in resistance training : addressing the inconsistencies.

Vertical jump testing in rugby league : a rationale for calculating take-off momentum (2020)
Journal Article
McMahon, J., Lake, J., Ripley, N., & Comfort, P. (2020). Vertical jump testing in rugby league : a rationale for calculating take-off momentum. Journal of Applied Biomechanics, 36(6), 370-374. https://doi.org/10.1123/jab.2020-0100

The purpose of this study was to determine the usefulness of calculating jump take-off momentum in rugby league (RL) by exploring its relationship with sprint momentum, due to the latter being an important attribute of this sport. Twenty-five male RL... Read More about Vertical jump testing in rugby league : a rationale for calculating take-off momentum.

Vertical jump testing in rugby league: a rationale for calculating take-off momentum (2020)
Journal Article
McMahon, J., Lake, J., Ripley, N., & Comfort, P. (2020). Vertical jump testing in rugby league: a rationale for calculating take-off momentum. Journal of Applied Biomechanics, 36(6), 370-374. https://doi.org/10.1123/JAB.2020-0100

The purpose of this study was to determine the usefulness of calculating jump take-off momentum in rugby league (RL) by exploring its relationship with sprint momentum, due to the latter being an important attribute of this sport. Twenty-five male RL... Read More about Vertical jump testing in rugby league: a rationale for calculating take-off momentum.

Effects of plyometric jump training on vertical jump height of volleyball players : a systematic review with meta-analysis of randomized-controlled trial (2020)
Journal Article
Ramirez-Campillo, R., Andrade, D., Nikolaidis, P., Moran, J., Clemente, F., Chaabene, H., & Comfort, P. (2020). Effects of plyometric jump training on vertical jump height of volleyball players : a systematic review with meta-analysis of randomized-controlled trial. Journal of Sports Science and Medicine, 19(3), 489-499

This meta-analysis aimed to assess the effects of plyometric jump training (PJT) on volleyball players' vertical jump height (VJH), comparing changes with those observed in a matched control group. A literature search in the databases of PubMed, MEDL... Read More about Effects of plyometric jump training on vertical jump height of volleyball players : a systematic review with meta-analysis of randomized-controlled trial.

Does sex impact the differences and relationships in the one repetition maximum performance across weightlifting overhead pressing exercises? (2020)
Journal Article
Soriano, M., García-Ramos, A., Calderbank, J., Marín, P., Sainz de Baranda, P., & Comfort, P. (2020). Does sex impact the differences and relationships in the one repetition maximum performance across weightlifting overhead pressing exercises?. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000003746

This study aimed to determine the impact of sex on the differences and relationships of the one repetition maximum (1RM) performance between 3 overhead pressing exercises (push press [PP], push jerk [PJ] and split jerk [SJ]). 15 men (body mass [BM]:... Read More about Does sex impact the differences and relationships in the one repetition maximum performance across weightlifting overhead pressing exercises?.

Countermovement jump standards in rugby league : what is a “good” performance? (2020)
Journal Article
McMahon, J., Lake, J., Dos'Santos, T., Jones, P., Thomasson, M., & Comfort, P. (2020). Countermovement jump standards in rugby league : what is a “good” performance?. Journal of Strength and Conditioning Research, 36(6), 1691-1698. https://doi.org/10.1519/JSC.0000000000003697

The countermovement jump (CMJ) is considered an important test in rugby league and the
force platform is the recommended tool for assessing CMJ performance in this cohort. Due to
inconsistent methods applied across previous studies, there is curren... Read More about Countermovement jump standards in rugby league : what is a “good” performance?.

The benefits of strength training on musculoskeletal system health : practical applications for interdisciplinary care (2020)
Journal Article

Global health organizations have provided recommendations regarding exercise for the general population. Strength training has been included in several position statements due to its multi-systemic benefits. In this narrative review, we examine the a... Read More about The benefits of strength training on musculoskeletal system health : practical applications for interdisciplinary care.

Training with weightlifting derivatives : the effects of force and velocity overload stimuli (2020)
Journal Article
Suchomel, T., McKeever, S., & Comfort, P. (2020). Training with weightlifting derivatives : the effects of force and velocity overload stimuli. Journal of Strength and Conditioning Research, 34(7), 1808-1818. https://doi.org/10.1519/JSC.0000000000003639

The purposes of this study were to compare the training effects of weightlifting movements performed with (CATCH) or without (PULL) the catch phase of clean derivatives performed at the same relative loads or training without the catch phase using a... Read More about Training with weightlifting derivatives : the effects of force and velocity overload stimuli.