Agility demands of Gaelic football match-play : a time-motion Analysis (2022)
Journal Article
Talty, P., McGuigan, K., Quinn, M., & Jones, P. (2022). Agility demands of Gaelic football match-play : a time-motion Analysis. International Journal of Performance Analysis in Sport, https://doi.org/10.1080/24748668.2022.2033519

Research into the physical demands of Gaelic football is limited with no research into the agility or change of direction (CoD) demands of the sport. This study examined the CoD demands of Gaelic football via a time-motion analysis of senior inter-co... Read More about Agility demands of Gaelic football match-play : a time-motion Analysis.

Linear advancing actions followed by deceleration and turn are the most common movements preceding goals in male professional soccer (2022)
Journal Article
Martinez, D., Quinn, M., & Jones, P. (2022). Linear advancing actions followed by deceleration and turn are the most common movements preceding goals in male professional soccer. Science and Medicine in Football, https://doi.org/10.1080/24733938.2022.2030064

Data were collected through time-motion analysis from soccer players participating in the English Premier League using a modified version of the Bloomfield Movement Classification with differences analysed through chi-square. The most common indiv... Read More about Linear advancing actions followed by deceleration and turn are the most common movements preceding goals in male professional soccer.

Using qualitative technique analysis to evaluate and develop technique of agility actions with your athletes (2021)
Journal Article
technique of agility actions with your athletes. Professional strength & conditioning, 25-33

An important element of developing agility with athletes is to evaluate technique in performing actions associated with match play. For practitioners it is important to understand what the key elements of ideal movement technique are to enhance per... Read More about Using qualitative technique analysis to evaluate and develop technique of agility actions with your athletes.

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?.

Contribution of eccentric strength to cutting performance in female soccer players (2019)
Journal Article
Jones, P., Dos'Santos, T., McMahon, J., & Graham-Smith, P. (2019). Contribution of eccentric strength to cutting performance in female soccer players. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000003433

The aim of this study was to examine the contribution of eccentric strength to performance of a 70-90° cutting task (CUT) (time to complete: 5 m approach, 70-90° cut, 3 m exit). Nineteen female soccer players (mean ± SD age, height and mass; 21.6 ± 4... Read More about Contribution of eccentric strength to cutting performance in female soccer players.

Comparison of countermovement jump–derived reactive strength index modified and underpinning force-time variables between super league and championship rugby league players (2019)
Journal Article
McMahon, J., Jones, P., & Comfort, P. (2019). Comparison of countermovement jump–derived reactive strength index modified and underpinning force-time variables between super league and championship rugby league players. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000003380

The countermovement jump (CMJ) is regularly tested in rugby league (RL), with recent work reporting reactive strength index modified (RSImod) to distinguish between levels of play. Differences in CMJ-derived RSImod and underpinning force-time variabl... Read More about Comparison of countermovement jump–derived reactive strength index modified and underpinning force-time variables between super league and championship rugby league players.

Normalization of early isometric force production as a percentage of peak force during multijoint isometric assessment (2019)
Journal Article
Comfort, P., Dos’Santos, T., Jones, P., McMahon, J., Suchomel, T., Bazyler, C., & Stone, M. (2020). Normalization of early isometric force production as a percentage of peak force during multijoint isometric assessment. International Journal of Sports Physiology and Performance, 15(4), 478-482. https://doi.org/10.1123/ijspp.2019-0217

Purpose: To determine the reliability of early force production (50-, 100-, 150-, 200-, 250 ms) relative to peak force (PF) during an isometric mid-thigh pull (IMTP) and assess the relationships between these variables. Methods: Male collegiate athle... Read More about Normalization of early isometric force production as a percentage of peak force during multijoint isometric assessment.

The effect of limb preference on braking strategy and knee joint mechanics during pivoting in female soccer players (2019)
Journal Article
Thomas, C., Dos'Santos, T., Cuthbert, M., Fields, C., & Jones, P. (2019). The effect of limb preference on braking strategy and knee joint mechanics during pivoting in female soccer players. Science and Medicine in Football, 4(1), 30-36. https://doi.org/10.1080/24733938.2019.1667020

Purpose: The purpose of this study was to explore whether limb preference influences braking strategy and knee joint mechanics during a 180° pivot task in female soccer players. Methods: Three-dimensional motion analyses of pivoting on the prefer... Read More about The effect of limb preference on braking strategy and knee joint mechanics during pivoting in female soccer players.

The reliability of using a laser device to assess deceleration ability (2019)
Journal Article
deceleration ability. Sports, 7(8), https://doi.org/10.3390/sports7080191

An important component of change of direction speed is the ability to decelerate. Objective methods to examine this quality have been rarely reported in the literature. The aim of this study was to investigate the within and between session reliabili... Read More about The reliability of using a laser device to assess deceleration ability.

Biomechanical associates of performance and knee joint loads during A70–90° cutting maneuver in sub-elite soccer players (2019)
Journal Article
McBurnie, A., Dos'Santos, T., & Jones, P. (2021). Biomechanical associates of performance and knee joint loads during A70–90° cutting maneuver in sub-elite soccer players. Journal of Strength and Conditioning Research, 35(11), 3190-3198. https://doi.org/10.1519/JSC.0000000000003252

The aim of this study was to explore the“performance-injury risk” conflict during cutting, by examining whole-body joint kinematics and kinetics that are responsible forfaster change-of-direction (COD) performance of a cutting task in soccer players,... Read More about Biomechanical associates of performance and knee joint loads during A70–90° cutting maneuver in sub-elite soccer players.

A qualitative screening tool to identify athletes with ‘high-risk’ movement mechanics during cutting : the cutting movement assessment score (CMAS) (2019)
Journal Article
assessment score (CMAS). Physical Therapy in Sport, 38, 152-161. https://doi.org/10.1016/j.ptsp.2019.05.004

Objective To assess the validity of the cutting movement assessment score (CMAS) to estimate the magnitude of peak knee abduction moments (KAM) against three-dimensional (3D) motion analysis, while comparing whole-body kinetics and kinematics betw... Read More about A qualitative screening tool to identify athletes with ‘high-risk’ movement mechanics during cutting : the cutting movement assessment score (CMAS).

The effect of limb dominance on change of direction biomechanics : a systematic review of its importance for injury risk (2019)
Journal Article
Dos'Santos, T., Bishop, C., Thomas, C., Comfort, P., & Jones, P. (2019). The effect of limb dominance on change of direction biomechanics : a systematic review of its importance for injury risk. Physical Therapy in Sport, 37, 179-189. https://doi.org/10.1016/j.ptsp.2019.04.005

Objective:To critically evaluate the effect of limb dominance on change of direction (COD) biomechanicsassociated with increased ACL injury-risk.Methods:A systematic review of the literature was conducted using Medline and Sport DISCUS data-bases. St... Read More about The effect of limb dominance on change of direction biomechanics : a systematic review of its importance for injury risk.

Role of the penultimate foot contact during change of direction : implications on performance and risk of injury (2019)
Journal Article
Dos'Santos, A., Thomas, C., Comfort, P., & Jones, P. (2019). Role of the penultimate foot contact during change of direction : implications on performance and risk of injury. Strength and Conditioning Journal, 41(1), 87-104. https://doi.org/10.1519/SSC.0000000000000395

Most change of direction biomechanical investigations and current technique guidelines focus on the role of the final foot contact (plant foot contact). However, it is evident that the braking characteristics during the penultimate foot contact pla... Read More about Role of the penultimate foot contact during change of direction : implications on performance and risk of injury.

Changes in dynamic strength index in response to strength training (2018)
Journal Article
Comfort, P., Thomas, C., Dos'Santos, T., Suchomel, T., Jones, P., & McMahon, J. (2018). Changes in dynamic strength index in response to strength training. Sports, 6(4), 176. https://doi.org/10.3390/sports6040176

The primary aim of this investigation was to determine the effects of a four-week period of in-season strength training on the dynamic strength index (DSI). Pre and post a four-week period of strength-based training, twenty-four collegiate athletes (... Read More about Changes in dynamic strength index in response to strength training.

Comparison of change of direction speed performance and asymmetries between team-sport athletes : application of change of direction deficit (2018)
Journal Article
Dos'Santos, T., Thomas, C., Comfort, P., & Jones, P. (2018). Comparison of change of direction speed performance and asymmetries between team-sport athletes : application of change of direction deficit. Sports, 6(4), 174. https://doi.org/10.3390/sports6040174

The purpose of this study was twofold: (1) to examine differences in change of direction (COD) performance and asymmetries between team-sports while considering the effects of sex and sport; (2) to evaluate the relationship between linear speed, COD... Read More about Comparison of change of direction speed performance and asymmetries between team-sport athletes : application of change of direction deficit.

Average of trial peaks versus peak of average profile : impact on change of direction biomechanics (2018)
Journal Article
Dos'Santos, T., Comfort, P., & Jones, P. (2020). Average of trial peaks versus peak of average profile : impact on change of direction biomechanics. Sports Biomechanics, 19(4), 483-492. https://doi.org/10.1080/14763141.2018.1497197

The aims of this study were twofold: firstly, to compare lower limb kinematic and kinetic variables during a sprint and 90° cutting task between two averaging methods of obtaining discrete data (peak of average profile vs. average of individual trial... Read More about Average of trial peaks versus peak of average profile : impact on change of direction biomechanics.

Relationships between unilateral muscle strength qualities and change of direction in adolescent team-sport athletes (2018)
Journal Article
Thomas, C., Dos'Santos, T., Comfort, P., & Jones, P. (2018). Relationships between unilateral muscle strength qualities and change of direction in adolescent team-sport athletes. Sports, 6(3), 83. https://doi.org/10.3390/sports6030083

Previous studies have reported an association between global measures of bilateral strength and change of direction (COD) ability. Yet, little is known about the association between unilateral muscle strength qualities and COD ability. The aim of thi... Read More about Relationships between unilateral muscle strength qualities and change of direction in adolescent team-sport athletes.

The effect of angle and velocity on change of direction biomechanics : an angle-velocity trade-off (2018)
Journal Article
Dos'Santos, T., Thomas, C., Comfort, P., & Jones, P. (2018). The effect of angle and velocity on change of direction biomechanics : an angle-velocity trade-off. Sports Medicine, 48(10), 2235-2253. https://doi.org/10.1007/s40279-018-0968-3

Changes of direction (CODs) are key manoeuvres linked to decisive moments in sport and are also key actions associated with lower limb injuries. During sport athletes perform a diverse range of CODs, from various approach velocities and angles, thus... Read More about The effect of angle and velocity on change of direction biomechanics : an angle-velocity trade-off.

Asymmetries in isometric force-time characteristics are not detrimental to change of direction speed (2018)
Journal Article
Dos'Santos, T., Thomas, C., Jones, P., & Comfort, P. (2018). Asymmetries in isometric force-time characteristics are not detrimental to change of direction speed. Journal of Strength and Conditioning Research, 32(2), 520-527. https://doi.org/10.1519/JSC.0000000000002327

The purpose of this study was to determine the impact of between-limb asymmetries in isometric midthigh pull (IMTP) force-time characteristics on change of direction speed (CODS). Twenty multisport collegiate athletes (mean ± SD: age: 21.0 ± 1.9 year... Read More about Asymmetries in isometric force-time characteristics are not detrimental to change of direction speed.

Effect of low-pass filtering on isometric midthigh pull kinetics (2018)
Journal Article
Dos'Santos, T., Lake, J., Jones, P., & Comfort, P. (2018). Effect of low-pass filtering on isometric midthigh pull kinetics. Journal of Strength and Conditioning Research, 32(4), 983-989. https://doi.org/10.1519/JSC.0000000000002473

The purpose of this study was to investigate the effect of low-pass filtering on isometric mid-thigh pull (IMTP) kinetics, including body weight (BW), onset threshold force, time-specific force values (50, 100, 150 and 200 ms) and peak force (PF). Fo... Read More about Effect of low-pass filtering on isometric midthigh pull kinetics.