All Outputs (233)

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.

Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance (2023)
Journal Article
Ripley, N., Cuthbert, M., Comfort, P., & McMahon, J. (2023). Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance. PLoS ONE, 18(3), https://doi.org/10.1371/journal.pone.0281966

The Nordic hamstring exercise (NHE) has commonly been investigated in isolation, however, within practice multiple modalities are commonly incorporated. However, the NHE has a low level of compliance within sport, with sprinting being potentially bei... Read More about Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance.

Selecting Metrics That Matter: Comparing the Use of the Countermovement Jump for Performance Profiling, Neuromuscular Fatigue Monitoring, and Injury Rehabilitation Testing (2023)
Journal Article
Bishop, C., Jordan, M., Torres-Ronda, L., Loturco, I., Harry, J., Virgile, A., …Comfort, P. (in press). Selecting Metrics That Matter: Comparing the Use of the Countermovement Jump for Performance Profiling, Neuromuscular Fatigue Monitoring, and Injury Rehabilitation Testing. Strength and Conditioning Journal, 45(5), 545-553. https://doi.org/10.1519/ssc.0000000000000772

The countermovement jump (CMJ) is one of the most used performance assessments in strength and conditioning. Although numerous studies discuss the usability of different metrics in this test, this is often performed within the context of a specific a... Read More about Selecting Metrics That Matter: Comparing the Use of the Countermovement Jump for Performance Profiling, Neuromuscular Fatigue Monitoring, and Injury Rehabilitation Testing.

Strength and Conditioning for Cricket Fielding: A Narrative Review (2022)
Journal Article
Lim, J., Wong, S., McErlain-Naylor, S. A., Scanlan, A., Goggins, L., Ahmun, R., …Weldon, A. (in press). Strength and Conditioning for Cricket Fielding: A Narrative Review. Strength and Conditioning Journal, 45(5), 509-524. https://doi.org/10.1519/ssc.0000000000000758

The main aim of cricket fielding is to minimize runs scored by the opposing batting team. This is achieved through (a) collecting a batted ball and returning it to the wicket-keeper to prevent runs from being scored, (b) dismissing a batter by catchi... Read More about Strength and Conditioning for Cricket Fielding: A Narrative Review.

Muscle architectural and force-velocity curve adaptations following 10 weeks of training with weightlifting catching and pulling derivatives (2022)
Journal Article
Suchomel, T., McKeever, S., Nolen, J., & Comfort, P. (2022). Muscle architectural and force-velocity curve adaptations following 10 weeks of training with weightlifting catching and pulling derivatives. Journal of Sports Science and Medicine, 21(4), 504-516. https://doi.org/10.52082/jssm.2022.504

The aims of this study were to examine the muscle architectural, rapid force production, and force-velocity curve adaptations following 10 weeks of resistance training with either submaximal weightlifting catching (CATCH) or pulling (PULL) derivative... Read More about Muscle architectural and force-velocity curve adaptations following 10 weeks of training with weightlifting catching and pulling derivatives.

The Effect of Rest Redistribution on Kinetic and Kinematic Variables During the Countermovement Shrug. (2022)
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 Countermovement Shrug. Journal of Strength and Conditioning Research, 37(7), 1358-1366. https://doi.org/10.1519/JSC.0000000000004238

This study compared the effects of rest redistribution (RR) on kinetic and kinematic variables during the countermovement shrug (CMS). Twenty-one male subjects (age 27.2 ± 3.3. years, height 1.78 ± 0.07 m, body mass 77.2 ±10.6 kg, relative one repeti... Read More about The Effect of Rest Redistribution on Kinetic and Kinematic Variables During the Countermovement Shrug..

Force plate-derived countermovement jump normative data and benchmarks for professional Rugby League players (2022)
Journal Article
McMahon, J., Ripley, N., & Comfort, P. (2022). Force plate-derived countermovement jump normative data and benchmarks for professional Rugby League players. Sensors, 22(22), 8669. https://doi.org/10.3390/s22228669

The countermovement jump (CMJ) is an important test in rugby league (RL), and the force plate is the recommended assessment device, as it permits the calculation of several variables that explain jump strategy, alongside jump height. The purpose of t... Read More about Force plate-derived countermovement jump normative data and benchmarks for professional Rugby League players.

Comparing biomechanical time series data across countermovement shrug load (2022)
Journal Article
Meechan, D., McErlain-Naylor, S., McMahon, J., Suchomel, T., & Comfort, P. (2022). Comparing biomechanical time series data across countermovement shrug load. Journal of Sports Sciences, 40(15), 1658-1667. https://doi.org/10.1080/02640414.2022.2091351

The effect of load on time series data has yet to be investigated during weightlifting derivatives. This study compared the effect of load on the force-time and velocity-time curves during the countermovement shrug (CMS). Twenty-nine males performed... Read More about Comparing biomechanical time series data across countermovement shrug load.

A comparison of three load-velocity based methods to estimate maximum overhead press performance in weightlifters (2022)
Journal Article
Soriano, M. A., Jiménez-Ormeño, E., Haff, G. G., Comfort, P., Giráldez-Costas, V., Ruiz-Moreno, C., & García-Ramos, A. (2022). A comparison of three load-velocity based methods to estimate maximum overhead press performance in weightlifters. International journal of Sports Science & Coaching, 18(5), 1585-1593. https://doi.org/10.1177/17479541221115854

This study aimed to evaluate whether lifting velocity can be used to estimate the overhead press one repetition maximum (1RM) and to explore the differences in the accuracy of the 1RM between three velocity-based methods. Twenty-seven weightlifters (... Read More about A comparison of three load-velocity based methods to estimate maximum overhead press performance in weightlifters.

A biomechanical analysis of weightlifting pulling derivatives and their application to performance programming (2022)
Thesis
Meechan, D. A biomechanical analysis of weightlifting pulling derivatives and their application to performance programming. (Thesis). University of Salford

The aims of the studies within this thesis were to determine if kinetics and kinematics differences occur between weightlifting pulling derivatives across loads, and to provide greater context regarding biomechanical time series data across loads. Ad... Read More about A biomechanical analysis of weightlifting pulling derivatives and their application to performance programming.

Rate of force development adaptations after weightlifting-style training: the influence of power clean ability. (2022)
Journal Article
James, L., Suchomel, T., Comfort, P., Haff, G., & Connick, M. (2022). Rate of force development adaptations after weightlifting-style training: the influence of power clean ability. Journal of Strength and Conditioning Research, 36(6), 1560-1567. https://doi.org/10.1519/JSC.0000000000003673

This experiment examined changes to the rate of force development (RFD) expressed under loaded jump conditions between individuals with a higher (stronger) and lower (weaker) weightlifting performance (as assessed by the 1 repetition maximum [RM] pow... Read More about Rate of force development adaptations after weightlifting-style training: the influence of power clean ability..

How Does Lower-Body and Upper-Body Strength Relate to Maximum Split Jerk Performance? (2022)
Journal Article
Soriano, M. A., Jiménez-Ormeño, E., Amaro-Gahete, F. J., Haff, G. G., & Comfort, P. (2022). How Does Lower-Body and Upper-Body Strength Relate to Maximum Split Jerk Performance?. Journal of Strength and Conditioning Research, 36(8), 2102-2107. https://doi.org/10.1519/jsc.0000000000004289

The aims of this study were to (I) determine the relationships between the maximum dynamic strength of the upper and lower body, measured by overhead press and back squat 1 repetition maximum (1RM) performances, and the split jerk (SJ) performance in... Read More about How Does Lower-Body and Upper-Body Strength Relate to Maximum Split Jerk Performance?.

Micro-dosing of resistance training in soccer players (2022)
Thesis
Cuthbert, M. Micro-dosing of resistance training in soccer players. (Thesis). University of Salford

Micro-dosing of resistance training is “the division of total volume within a micro-cycle, across frequent, short duration, repeated bouts” as defined within this thesis, and is a concept built on a foundation of well-established training approaches,... Read More about Micro-dosing of resistance training in soccer players.

Comparisons of countermovement jump and isokinetic performance in youth athletes: maturation and early sport specialization considerations (2022)
Thesis
Hofmann, C. Comparisons of countermovement jump and isokinetic performance in youth athletes: maturation and early sport specialization considerations. (Thesis). University of Salford

This thesis examines the impact of maturation status and single versus multiple sport participation on the physical performance of adolescent athletes across 6 studies. Study 1 investigated the test – retest reliability of isokinetic knee flexion and... Read More about Comparisons of countermovement jump and isokinetic performance in youth athletes: maturation and early sport specialization considerations.

Comparison between methods to estimate bicep femoris fascicle length from three estimation equations using a 10 cm ultrasound probe (2022)
Journal Article
Ripley, N., Comfort, P., & McMahon, J. (2022). Comparison between methods to estimate bicep femoris fascicle length from three estimation equations using a 10 cm ultrasound probe. Measurement in Physical Education and Exercise Science, 27(1), 43-50. https://doi.org/10.1080/1091367X.2022.2063689

The aim of the present study was to determine the reliability and differences between three fascicle length (FL) estimation methods when utilizing a 10-cm ultrasound (US) probe. Thirteen males (24.1 ± 3.8 years, 79.3 ± 14 kg, 179 ± 6.6 cm) participat... Read More about Comparison between methods to estimate bicep femoris fascicle length from three estimation equations using a 10 cm ultrasound probe.