Outputs (94)

Influence of reactive strength index modified on force- and power-time curves (2017)
Journal Article
McMahon, J., Jones, P., Suchomel, T., Lake, J., & Comfort, P. (2017). Influence of reactive strength index modified on force- and power-time curves. International Journal of Sports Physiology and Performance, 13(2), 220-227. https://doi.org/10.1123/ijspp.2017-0056

Purpose: The reactive strength index modified (RSImod) has been recently identified and validated as a method of monitoring countermovement jump (CMJ) performance. The kinetic and kinematic mechanisms that optimize a higher RSImod score are, however,... Read More about Influence of reactive strength index modified on force- and power-time curves.

Sex differences in countermovement jump phase characteristics (2017)
Journal Article
McMahon, J., Rej, S., & Comfort, P. (2017). Sex differences in countermovement jump phase characteristics. Sports, 5(1), 8. https://doi.org/10.3390/sports5010008

The countermovement jump (CMJ) is commonly used to explore sex differences in neuromuscular function, but previous studies have only reported gross CMJ measures or have partly examined CMJ phase characteristics. The purpose of this study was to explo... Read More about Sex differences in countermovement jump phase characteristics.

Changes in strength, power, and speed across a season in English county cricketers (2017)
Journal Article
Carr, C., McMahon, J., & Comfort, P. (2017). Changes in strength, power, and speed across a season in English county cricketers. International Journal of Sports Physiology and Performance, 12(1), 50-55. https://doi.org/10.1123/ijspp.2015-0524

PURPOSE: Previous research has investigated changes in athletes' strength, power, and speed performances across the competitive season of many sports, although this has not been explored in cricketers. The aim of this study was to investigate changes... Read More about Changes in strength, power, and speed across a season in English county cricketers.

Within- and between-session reliability of medial gastrocnemius architectural properties (2016)
Journal Article
McMahon, J., Turner, A., & Comfort, P. (2016). Within- and between-session reliability of medial gastrocnemius architectural properties. Biology of Sport, 33(2), 185-188. https://doi.org/10.5604/20831862.1200511

This study aimed to determine the within- and between-session reliability of medial gastrocnemius (MG) architecture (e.g. muscle thickness (MT), fascicle length (FL) and pennation angle (PA)), as derived via ultrasonography followed by manual digit... Read More about Within- and between-session reliability of medial gastrocnemius architectural properties.

Reliability of the 505 change-of-direction test in netball players (2016)
Journal Article
Barber, O., Thomas, C., Jones, P., McMahon, J., & Comfort, P. (2016). Reliability of the 505 change-of-direction test in netball players. International Journal of Sports Physiology and Performance, 11(3), 377-380. https://doi.org/10.1123/ijspp.2015-0215

PURPOSE: To determine the reliability of the 505 change-of-direction (COD) test performed with both a stationary and a flying start. METHODS: Fifty-two female netball players (age 23.9 ± 5.4 y, height 169.9 ± 3.3 cm, body mass 65.2 ± 4.6 kg) pe... Read More about Reliability of the 505 change-of-direction test in netball players.

Effect of sampling frequency on isometric midthigh-pull kinetics (2016)
Journal Article
Dos’Santos, T., Jones, P., Kelly, J., McMahon, J., Comfort, P., & Thomas, C. (2016). Effect of sampling frequency on isometric midthigh-pull kinetics. International Journal of Sports Physiology and Performance, 11(2), 255-260. https://doi.org/10.1123/ijspp.2015-0222

Purpose: Skeletal-muscle function can be evaluated using force–times curves generated via the isometric midthigh pull (IMTP). Various sampling frequencies (500–1000 Hz) have been used for IMTP assessments; however, no research has investigated the in... Read More about Effect of sampling frequency on isometric midthigh-pull kinetics.

Relationships between lower body muscle structure and isometric mid-thigh pull peak force (2015)
Journal Article
McMahon, J., Stapley, J., Suchomel, T., & Comfort, P. (2015). Relationships between lower body muscle structure and isometric mid-thigh pull peak force. Journal of trainology, 4(2), 43-48. https://doi.org/10.17338/trainology.4.2_43

Objectives: To explore relationships between aspects of vastus lateralis (VL) and medial gastrocnemius (MG) muscle structure (muscle thickness, fascicle length and pennation angle) and isometric mid-thigh pull (IMTP) peak force capacity. Design and M... Read More about Relationships between lower body muscle structure and isometric mid-thigh pull peak force.

Relationships between speed, change of direction and jump performance with cricket specific speed tests in male academy cricketers (2015)
Journal Article
Foden, M., Astley, S., McMahon, J., Comfort, P., Matthews, M., & Jones, P. (2015). Relationships between speed, change of direction and jump performance with cricket specific speed tests in male academy cricketers. Journal of trainology, 4(2), 37-42. https://doi.org/10.17338/trainology.4.2_37

Objectives: The aim of this study was to investigate the relationships between general speed and change of direction speed and‘cricket specific’ speed tests and the relationships between jump performance and speed and change of direction ability in m... Read More about Relationships between speed, change of direction and jump performance with cricket specific speed tests in male academy cricketers.

Reliability of maximal back squat and power clean performances in inexperienced athletes (2015)
Journal Article
Comfort, P., & McMahon, J. (2015). Reliability of maximal back squat and power clean performances in inexperienced athletes. Journal of Strength and Conditioning Research, 29(11), 3089-3096. https://doi.org/10.1519/JSC.0000000000000815

The aim of the study was to determine between-session reliability of maximal weight lifted during the back squat and power clean, in inexperienced athletes, and to identify the smallest detectable difference between sessions. Forty-four collegiate at... Read More about Reliability of maximal back squat and power clean performances in inexperienced athletes.

A correction equation for jump height measured using the just jump system (2015)
Journal Article
McMahon, J., Jones, P., & Comfort, P. (2016). A correction equation for jump height measured using the just jump system. International Journal of Sports Physiology and Performance, 11(4), 555-557. https://doi.org/10.1123/ijspp.2015-0194

Purpose: To determine the concurrent validity and reliability of the popular Just Jump system (JJS) for determining jump height and, if necessary, provide a correction equation for future reference. Methods: Eighteen male college athletes performed 3... Read More about A correction equation for jump height measured using the just jump system.