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Prof Paul Comfort's Outputs (247)

A mixed methods approach to training for the mitigation of modifiable risk factors for hamstring strain injury and the development of athletic performance. (2025)
Thesis

Hamstring strain injuries (HSIs) are the most common non-contact injuries in various sports, including soccer, American football, rugby union, Australian rules football, cricket, and sprinting. Epidemiological studies have highlighted the significant... Read More about A mixed methods approach to training for the mitigation of modifiable risk factors for hamstring strain injury and the development of athletic performance..

Practices and perceptions in hamstring training for injury risk mitigation: A survey-based mixed-methods analysis (2025)
Journal Article

In this study, the practices and perceptions of sport and exercise practitioners regarding hamstring training for injury risk mitigation were investigated. Hamstring strain injuries (HSIs) remain a prevalent issue across sports, despite extensive res... Read More about Practices and perceptions in hamstring training for injury risk mitigation: A survey-based mixed-methods analysis.

The relationship between muscle mass changes and protein or energy intake in critically ill children: A systematic review and meta‐analysis (2024)
Journal Article

Survivorship after pediatric critical illness is high in developed countries, but many suffer physical morbidities afterwards. The increasing focus on follow‐up after critical illness has led to more pediatric studies reporting muscle mass changes (u... Read More about The relationship between muscle mass changes and protein or energy intake in critically ill children: A systematic review and meta‐analysis.

Evidence-Driven Approaches to Developing Specific Strength in the First Pull: A Narrative Review (2024)
Journal Article
Joffe, S. A., Chavda, S., Sorensen, A., & Comfort, P. (in press). Evidence-Driven Approaches to Developing Specific Strength in the First Pull: A Narrative Review. Strength and Conditioning Journal, https://doi.org/10.1519/ssc.0000000000000874

A substantial body of literature has focused on weightlifting derivative lifts, primarily emphasizing the second pull phase because of its greater expression of force, velocity, and power output. The biomechanical resemblance of this phase to various... Read More about Evidence-Driven Approaches to Developing Specific Strength in the First Pull: A Narrative Review.

A systematic review and network meta-analysis on the effectiveness of exercise-based interventions for reducing the injury incidence in youth team-sport players. Part 1: an analysis by classical training components (2024)
Journal Article
Robles-Palazón, F. J., Blázquez-Rincón, D., López-Valenciano, A., Comfort, P., López-López, J. A., & Ayala, F. (in press). A systematic review and network meta-analysis on the effectiveness of exercise-based interventions for reducing the injury incidence in youth team-sport players. Part 1: an analysis by classical training components. Annals of Medicine, 56(1), Article 2408457. https://doi.org/10.1080/07853890.2024.2408457

Objectives: the primary purposes were (a) to estimate the pooled effects of injury prevention
programs (iPPs) on reducing overall and some specific body regions (lower extremity, thigh, knee,
and ankle) injury incidence rates (iiRs) and (b) to comp... Read More about A systematic review and network meta-analysis on the effectiveness of exercise-based interventions for reducing the injury incidence in youth team-sport players. Part 1: an analysis by classical training components.

Kinematic, Neuromuscular and Bicep Femoris In Vivo Mechanics during the Nordic Hamstring Exercise and Variations of the Nordic Hamstring Exercise (2024)
Journal Article
Ripley, N., Fahey, J., Comfort, P., & McMahon, J. (2024). Kinematic, Neuromuscular and Bicep Femoris In Vivo Mechanics during the Nordic Hamstring Exercise and Variations of the Nordic Hamstring Exercise. #Journal not on list, 3(3), 310-322. https://doi.org/10.3390/muscles3030027

The Nordic hamstring exercise (NHE) is effective at decreasing hamstring strain injury risk. Limited information is available on the in vivo mechanics of the bicep femoris long head (BFLH) during the NHE. Therefore, the purpose of this study was to o... Read More about Kinematic, Neuromuscular and Bicep Femoris In Vivo Mechanics during the Nordic Hamstring Exercise and Variations of the Nordic Hamstring Exercise.

The Reliability, Bias, Differences, and Agreement Between Velocity Measurement Devices During the Hang Clean Pull. (2024)
Journal Article

This study examined the reliability, bias, differences, and agreement between the GymAware PowerTool (GA) and Tendo Power Analyzer (TENDO) during the hang clean pull (HCP). Fourteen resistance-trained men performed HCP repetitions with 20, 40, 60, 80... Read More about The Reliability, Bias, Differences, and Agreement Between Velocity Measurement Devices During the Hang Clean Pull..

Early Versus Late Rapid Force Production During Single-Joint Isometric Hamstring Assessment Using Force Plates. (2024)
Journal Article
Ripley, N. J., Barber, R., Fahey, J. T., Fahey, J., & Comfort, P. (2024). Early Versus Late Rapid Force Production During Single-Joint Isometric Hamstring Assessment Using Force Plates. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000004911

Ripley, NJ, Barber, R, Fahey, JT, and Comfort, P. Early versus late rapid force production during single-joint isometric hamstring assessment using force plates. J Strength Cond Res XX(X): 000-000, 2024-The aim of this study was to assess differences... Read More about Early Versus Late Rapid Force Production During Single-Joint Isometric Hamstring Assessment Using Force Plates..

Kinetics and Kinematics of the Push Press, Push Jerk, and Split Jerk. (2024)
Journal Article
Soriano, M. A., Jiménez-Ormeño, E., Lake, J. P., McMahon, J. J., Gallo-Salazar, C., Mundy, P., & Comfort, P. (2024). Kinetics and Kinematics of the Push Press, Push Jerk, and Split Jerk. Journal of Strength and Conditioning Research, 38(8), 1359-1365. https://doi.org/10.1519/JSC.0000000000004810

The aim of this study was to explore the kinetics and kinematics across incremental loads with the push press (PP), push jerk (PJ), and split jerk (SJ). Eighteen resistance- trained men performed the 1 repetition maximum (1RM) tests (visit 1) 3–7 day... Read More about Kinetics and Kinematics of the Push Press, Push Jerk, and Split Jerk..

The Effect of Training Modalities on Bicep Femoris Fascicle Length Adaptations: A Systematic Review and Meta-analyses (2024)
Journal Article

Bicep femoris long head (BFLH) fascicle length (FL) is a modifiable risk factor of hamstring strain injury (HSI) and is extremely adaptable to imposed demands. The aim was to conduct a systematic review and meta-analysis to estimate the effects of di... Read More about The Effect of Training Modalities on Bicep Femoris Fascicle Length Adaptations: A Systematic Review and Meta-analyses.

Can the Velocity of a 1RM Hang Power Clean Be Used to Estimate a 1RM Hang High Pull? (2024)
Journal Article
Suchomel, T. J., Techmanski, B. S., Kissick, C. R., & Comfort, P. (2024). Can the Velocity of a 1RM Hang Power Clean Be Used to Estimate a 1RM Hang High Pull?. Journal of Strength and Conditioning Research, 38(7), 1321-1325. https://doi.org/10.1519/JSC.0000000000004845

Suchomel, TJ, Techmanski, BS, Kissick, CR, and Comfort, P. Can the velocity of a 1RM hang power clean be used to estimate a 1RM hang high pull? J Strength Cond Res 38(7): 1321-1325, 2024-The purpose of this study was to estimate the 1-repetition maxi... Read More about Can the Velocity of a 1RM Hang Power Clean Be Used to Estimate a 1RM Hang High Pull?.

Normalization of rapid force to peak force in an isometric hamstring assessment using force plates (2024)
Journal Article
Barber, R., Fahey, J., Comfort, P., & Ripley, N. (2024). Normalization of rapid force to peak force in an isometric hamstring assessment using force plates. Apunts Sports Medicine, 59(223), 100450. https://doi.org/10.1016/j.apunsm.2024.100450

Purpose The aim of this investigation was to determine the reliability of normalizing rapid force (RF) production to peak force assessed during an isometric knee flexor assessment, and to present a novel method of c... Read More about Normalization of rapid force to peak force in an isometric hamstring assessment using force plates.

Things to keep in mind when selecting physical assessments in youth soccer: Correlations between test performances, interlimb asymmetries, and effects of maturation (2024)
Journal Article
Robles-Palazón, F. J., McMahon, J. J., Ayala, F., & Comfort, P. (2024). Things to keep in mind when selecting physical assessments in youth soccer: Correlations between test performances, interlimb asymmetries, and effects of maturation. PLoS ONE, 19(6), e0305570. https://doi.org/10.1371/journal.pone.0305570

A range of field-based tests have been proposed for inclusion in physical performance assessment batteries. However, there are obvious time and human resources constraints in applied settings. The knowledge of potential relationships between tests on... Read More about Things to keep in mind when selecting physical assessments in youth soccer: Correlations between test performances, interlimb asymmetries, and effects of maturation.

Comparison between Short, Medium, and Long Fields of View in Estimating Bicep Femoris Fascicle Length (2024)
Journal Article
J. Ripley, N., Comfort, P., & McMahon, J. (2024). Comparison between Short, Medium, and Long Fields of View in Estimating Bicep Femoris Fascicle Length. #Journal not on list, 3(2), 153-165. https://doi.org/10.3390/muscles3020014

Measuring the bicep femoris long head fascicle length via the use of diagnostic ultrasound has become common practice within elite sport, using single images of between 4 and 6 cm. No study to date has compared single image estimations in terms of th... Read More about Comparison between Short, Medium, and Long Fields of View in Estimating Bicep Femoris Fascicle Length.

Neuromuscular Capabilities in Top-Level Weightlifters and Their Association with Weightlifting Performance (2024)
Journal Article
Soriano, M. A., Flores, F. J., Lama-Arenales, J., Fernández-del-Olmo, M., & Comfort, P. (2024). Neuromuscular Capabilities in Top-Level Weightlifters and Their Association with Weightlifting Performance. Applied Sciences, 14(9), 3762. https://doi.org/10.3390/app14093762

The aim of this study was to determine the associations between the front and back squat, countermovement jump (CMJ) and deep squat jump (DSJ) force–time metrics, and weightlifting performance in top-level weightlifters. Thirteen top-level weightlift... Read More about Neuromuscular Capabilities in Top-Level Weightlifters and Their Association with Weightlifting Performance.

"You Are Not Wrong About Getting Strong:" An Insight Into the Impact of Age Group and Level of Competition on Strength in Spanish Football Players. (2024)
Journal Article

This study aimed to compare the maximum and rapid force production of Spanish football players and explore the differences between age group and level of competition. A cross-sectional study was developed to evaluate the peak force (PF), relative PF,... Read More about "You Are Not Wrong About Getting Strong:" An Insight Into the Impact of Age Group and Level of Competition on Strength in Spanish Football Players..