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All Outputs (227)

Association between protein intake and muscle wasting in critically ill children: A prospective cohort study (2024)
Journal Article
Tume, L. N., Simons, C., Latten, L., Huang, C., Comfort, P., Compton, V., …Valla, F. V. (in press). Association between protein intake and muscle wasting in critically ill children: A prospective cohort study. Journal of Parenteral and Enteral Nutrition, https://doi.org/10.1002/jpen.2627

Background: Survival from pediatric critical illness in high‐income countries is high, and the focus now must be on optimizing the recovery of survivors. Muscle mass wasting during critical illness is problematic, so identifying factors that may redu... Read More about Association between protein intake and muscle wasting in critically ill children: A prospective cohort study.

The effect of rest redistribution on kinetic and kinematic variables during the hang pull (2024)
Journal Article
Meechan, D., McMahon, J. J., Suchomel, T. J., & Comfort, P. (in press). The effect of rest redistribution on kinetic and kinematic variables during the hang pull. PloS one, 19(2), e0299311. https://doi.org/10.1371/journal.pone.0299311

The aim of this study was to compare the effects of rest redistribution (RR) on kinetics and kinematics during the hang pull (HP). Twenty-one male athletes (age 29.5 ± 4.3 years, height 1.78 ± 0.07 m, body mass 75.17 ± 11.11 kg, relative one repetiti... Read More about The effect of rest redistribution on kinetic and kinematic variables during the hang pull.

Relative strength explains the differences in multi-joint rapid force production between sexes (2024)
Journal Article
Comfort, P., McMahon, J. J., Lake, J. P., Ripley, N. J., Triplett, N. T., & Haff, G. G. (in press). Relative strength explains the differences in multi-joint rapid force production between sexes. PloS one, 19(2), e0296877. https://doi.org/10.1371/journal.pone.0296877

The primary aim of this study was to determine whether relative strength explains the differences in the rapid force production (force developed during first 150-, 200-, and 250 ms) of females and males, and to evaluate the relationships between peak... Read More about Relative strength explains the differences in multi-joint rapid force production between sexes.

Effect of Sampling Frequency on a Unilateral Isometric Hamstring Strength Assessment Using Force Plates (2024)
Journal Article
Ripley, N., McMahon, J., & Comfort, P. (in press). Effect of Sampling Frequency on a Unilateral Isometric Hamstring Strength Assessment Using Force Plates. #Journal not on list,

The purpose of this study was to determine the effect of sampling frequency on the 90-90 (90-degrees hip and knee flexion) isometric hamstring assessment. Thirty-three elite female soccer players (age: 18.7 ± 3.7 years; height: 158.3 ± 5.9 cm; body m... Read More about Effect of Sampling Frequency on a Unilateral Isometric Hamstring Strength Assessment Using Force Plates.

Real-World Fatigue Testing in Professional Rugby Union: A Systematic Review and Meta-analysis. (2023)
Journal Article
Grainger, A., Comfort, P., Twist, C., M. Heffernan, S., & Tarantino, G. (2023). Real-World Fatigue Testing in Professional Rugby Union: A Systematic Review and Meta-analysis. Sports Medicine, 10.1007/s40279-023-01973-3. https://doi.org/10.1007/s40279-023-01973-3

Professional rugby union is a high-intensity contact sport with position-specific high training and match volumes across a season that may lead to periods of fatigue if above a typically experienced threshold. This study assesses the influence of mat... Read More about Real-World Fatigue Testing in Professional Rugby Union: A Systematic Review and Meta-analysis..

The Kneeling Isometric Plantar Flexor Test: Preliminary Reliability and Feasibility in Professional Youth Football (2023)
Journal Article
McMahon, J. J., Ripley, N. J., Comfort, P., Robles-Palazón, F. J., Fahey, J. T., Badby, A. J., & Bramah, C. (2023). The Kneeling Isometric Plantar Flexor Test: Preliminary Reliability and Feasibility in Professional Youth Football. Journal of Functional Morphology and Kinesiology, 8(4), 164. https://doi.org/10.3390/jfmk8040164

Calf injuries are common in professional football; thus, the establishment of reliable and time-efficient methods of measuring the peak force capabilities of the plantar flexors with equipment that is accessible to football practitioners is valuable.... Read More about The Kneeling Isometric Plantar Flexor Test: Preliminary Reliability and Feasibility in Professional Youth Football.

Rapid force generation during unilateral isometric hamstring assessment: reliability and relationship to maximal force. (2023)
Journal Article
Ripley, N., Fahey, J., Cuthbert, M., McMahon, J., & Comfort, P. (2023). Rapid force generation during unilateral isometric hamstring assessment: reliability and relationship to maximal force. Sports Biomechanics, 1-12. https://doi.org/10.1080/14763141.2023.2276316

Limited research has reported the reliability of rapid force generation characteristics during isometric assessments of the hamstrings. Therefore, the purpose of the present study was to determine the between-session reliability of rapid force genera... Read More about Rapid force generation during unilateral isometric hamstring assessment: reliability and relationship to maximal force..

Development Pathways for the Sport Scientist: A Process for the United States (2023)
Journal Article
Gleason, B. H., Suchomel, T. J., Pyne, D. B., Comfort, P., McMahon, E., Hornsby, W. G., …Stone, M. H. (2023). Development Pathways for the Sport Scientist: A Process for the United States. Strength and Conditioning Journal, https://doi.org/10.1519/ssc.0000000000000804

A variety of sport organizations employ sport scientists (SSs) in a range of capacities to support team operations, whereas universities employ SSs in academic (teaching and research), consulting, and support roles. Despite the growth in professional... Read More about Development Pathways for the Sport Scientist: A Process for the United States.

Force plate methodologies applied to injury profiling and rehabilitation in sport: A scoping review protocol (2023)
Journal Article
Robles-Palazón, F. J., Comfort, P., Ripley, N. J., Herrington, L., Bramah, C., & McMahon, J. J. (in press). Force plate methodologies applied to injury profiling and rehabilitation in sport: A scoping review protocol. PloS one, 18(10), e0292487. https://doi.org/10.1371/journal.pone.0292487

Musculoskeletal injuries are a common health problem among sporting populations. Such injuries come with a high financial burden to the involved organisations and can have a detrimental impact on the career attainment of injured individuals. Force pl... Read More about Force plate methodologies applied to injury profiling and rehabilitation in sport: A scoping review protocol.

Predicting Weight Category–Specific Performance Zones for Olympic, World, and European Weightlifting Competitions (2023)
Journal Article
Chavda, S., Comfort, P., Lake, J. P., Bishop, C., & Turner, A. N. (2023). Predicting Weight Category–Specific Performance Zones for Olympic, World, and European Weightlifting Competitions. Journal of Strength and Conditioning Research, 37(10), 2038-2045. https://doi.org/10.1519/jsc.0000000000004511

Understanding the total likely required weight category to achieve a specific rank within a specific competition can aid in the long-term and short-term preparation and tactics for performance teams. The primary objective of this investigation was to... Read More about Predicting Weight Category–Specific Performance Zones for Olympic, World, and European Weightlifting Competitions.

The Good Morning—Exercise Technique and Exercise Selection Principles (2023)
Journal Article
Ross, S., Comfort, P., & McMahon, J. (2023). The Good Morning—Exercise Technique and Exercise Selection Principles. Strength and Conditioning Journal, https://doi.org/10.1519/ssc.0000000000000802

The good morning is a barbell exercise that can be used to develop muscular strength and hypertrophy in the posterior chain (i.e., hamstring muscles, gluteal muscles, spinal erectors, calf complex). The exercise uses a hip hinge motion with the barbe... Read More about The Good Morning—Exercise Technique and Exercise Selection Principles.

The Predictive Validity of Individualised Load–Velocity Relationships for Predicting 1RM: A Systematic Review and Individual Participant Data Meta-analysis (2023)
Journal Article
Greig, L., Aspe, R. R., Hall, A., Comfort, P., Cooper, K., & Swinton, P. A. (2023). The Predictive Validity of Individualised Load–Velocity Relationships for Predicting 1RM: A Systematic Review and Individual Participant Data Meta-analysis. Sports Medicine, 53(9), 1693-1708. https://doi.org/10.1007/s40279-023-01854-9

Background: Load–velocity relationships are commonly used to estimate one-repetition maximums (1RMs). Proponents suggest these estimates can be obtained at high frequencies and assist with manipulating loads according to session-by-session fluctuatio... Read More about The Predictive Validity of Individualised Load–Velocity Relationships for Predicting 1RM: A Systematic Review and Individual Participant Data Meta-analysis.

Microdosing: A Conceptual Framework for use as Programming Strategy for Resistance Training in Team Sports (2023)
Journal Article
Cuthbert, M., Haff, G. G., McMahon, J. J., Evans, M., & Comfort, P. (2023). Microdosing: A Conceptual Framework for use as Programming Strategy for Resistance Training in Team Sports. Strength and Conditioning Journal, 46(2), 180-201. https://doi.org/10.1519/ssc.0000000000000786

Microdosing, in the context of resistance training, has increased in popularity within sporting environments where it is frequently used among strength and conditioning professionals. Although there is a clear definition for the concept within the li... Read More about Microdosing: A Conceptual Framework for use as Programming Strategy for Resistance Training in Team Sports.

Development of Physical Qualities Related to Multidirectional Speed (2023)
Book Chapter
Comfort, P. (2023). Development of Physical Qualities Related to Multidirectional Speed. In P. Jones, & T. Dos'Santos (Eds.), Multidirectional Speed in Sport. Taylor and Francis. https://doi.org/10.4324/9781003267881-10

In addition to the development of the appropriate movement patterns required to perform rapid multidirectional speed movements, while minimising the risk of injury, it is essential that athletes develop the appropriate force production capacities (e.... Read More about Development of Physical Qualities Related to Multidirectional Speed.

The Validity of Hawkin Dynamics Wireless Dual Force Plates for Measuring Countermovement Jump and Drop Jump Variables (2023)
Journal Article
J. Badby, A., D. Mundy, P., Comfort, P., Lake, J. P., & McMahon, J. (2023). The Validity of Hawkin Dynamics Wireless Dual Force Plates for Measuring Countermovement Jump and Drop Jump Variables. Sensors, 23(10), 4820. https://doi.org/10.3390/s23104820

Force plate testing is becoming more commonplace in sport due to the advent of commercially available, portable, and affordable force plate systems (i.e., hardware and software). Following the validation of the Hawkin Dynamics Inc. (HD) proprietary s... Read More about The Validity of Hawkin Dynamics Wireless Dual Force Plates for Measuring Countermovement Jump and Drop Jump Variables.

National Strength and Conditioning Association Position Statement on Weightlifting for Sports Performance (2023)
Journal Article
Comfort, P., Haff, G. G., Suchomel, T. J., Soriano, M. A., Pierce, K. C., Hornsby, W. G., …Stone, M. H. (in press). National Strength and Conditioning Association Position Statement on Weightlifting for Sports Performance. Journal of Strength and Conditioning Research, 37(6), 1163-1190. https://doi.org/10.1519/jsc.0000000000004476

The origins of weightlifting and feats of strength span back to ancient Egypt, China, and Greece, with the introduction of weightlifting into the Olympic Games in 1896. However, it was not until the 1950s that training based on weightlifting was adop... Read More about National Strength and Conditioning Association Position Statement on Weightlifting for Sports Performance.

A systematic review of the different calculation methods for measuring jump height during the countermovement and drop jump tests (2023)
Journal Article
Xu, J., Turner, A., Comfort, P., Harry, J., McMahon, J., Chavda, S., & Bishop, C. (in press). A systematic review of the different calculation methods for measuring jump height during the countermovement and drop jump tests. Sports Medicine, 11, https://doi.org/10.1007/s40279-023-01828-x

Background The height obtained during the countermovement jump (CMJ) and drop jump (DJ) tests have been measured by numerous studies using different calculation methods and pieces of equipment. However, the differences in calculation methods and e... Read More about A systematic review of the different calculation methods for measuring jump height during the countermovement and drop jump tests.

Reliability, Validity, and Comparison of Barbell Velocity Measurement Devices during the Jump Shrug and Hang High Pull (2023)
Journal Article
J. Suchomel, T., S. Techmanski, B., R. Kissick, C., & Comfort, P. (2023). Reliability, Validity, and Comparison of Barbell Velocity Measurement Devices during the Jump Shrug and Hang High Pull. Journal of Functional Morphology and Kinesiology, 8(1), https://doi.org/10.3390/jfmk8010035

This study examined the reliability, potential bias, and practical differences between the GymAware Powertool (GA), Tendo Power Analyzer (TENDO), and Push Band 2.0 (PUSH) during the jump shrug (JS) and hang high pull (HHP) performed across a spectrum... Read More about Reliability, Validity, and Comparison of Barbell Velocity Measurement Devices during the Jump Shrug and Hang High Pull.