All Outputs (98)

How early should you brake during a 180° turn? A kinetic comparison of the antepenultimate, penultimate, and final foot contacts during a 505 change of direction speed test (2020)
Journal Article
Dos'Santos, T., Thomas, C., & Jones, P. (2021). How early should you brake during a 180° turn? A kinetic comparison of the antepenultimate, penultimate, and final foot contacts during a 505 change of direction speed test. Journal of Sports Sciences, 39(4), 395-405. https://doi.org/10.1080/02640414.2020.1823130

The aim of the study was to compare ground reaction force (GRF) characteristics between the antepenultimate foot contact (APFC), penultimate foot contact (PFC), and final foot contact (FFC), and to examine the relationships between APFC, PFC, and FFC... Read More about How early should you brake during a 180° turn? A kinetic comparison of the antepenultimate, penultimate, and final foot contacts during a 505 change of direction speed test.

Biomechanical determinants of knee joint loads associated with increased anterior cruciate ligament loading during cutting : a systematic review and technical framework (2020)
Journal Article
Donelon, T., Dos’Santos, T., Pitchers, G., Brown, M., & Jones, P. (2020). Biomechanical determinants of knee joint loads associated with increased anterior cruciate ligament loading during cutting : a systematic review and technical framework. Sports Medicine - Open, 6(1), 53. https://doi.org/10.1186/s40798-020-00276-5

Background: Cutting actions are associated with non-contact ACL injuries in multidirectional sports due to the propensity to generate large multiplanar knee joint loads (KJLs) that have the capacity to increase ACL loading and strain. Numerous studie... Read More about Biomechanical determinants of knee joint loads associated with increased anterior cruciate ligament loading during cutting : a systematic review and technical framework.

Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction (2020)
Journal Article
Thomas, C., Dos’Santos, T., Comfort, P., & Jones, P. (2020). Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction. Sports Biomechanics, 1-14. https://doi.org/10.1080/14763141.2020.1830160

Change of direction manoeuvres is important in soccer and associated with non-contact anterior cruciate ligament injury, yet it is not known how the mechanics differentiate between males and females during 180° turns. Twenty-eight soccer players (14... Read More about Male and female soccer players exhibit different knee joint mechanics during pre-planned change of direction.

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?.

Relationship between physical fitness and the physical demands of 50-over cricket in fast bowlers (2020)
Journal Article
Webster, T., Comfort, P., & Jones, P. (2020). Relationship between physical fitness and the physical demands of 50-over cricket in fast bowlers. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000003542

Professional cricket is constantly evolving and resulting in increased physiological demand placed on players. Fast bowlers experience the greatest physical demand during match-play; despite this, research has overlooked the importance of specific ph... Read More about Relationship between physical fitness and the physical demands of 50-over cricket in fast bowlers.

Changes in early and maximal isometric force production in response to moderate- and high-load strength and power training (2020)
Journal Article
Comfort, P., Jones, P., Thomas, C., Dos'Santos, T., McMahon, J., & Suchomel, T. (2020). Changes in early and maximal isometric force production in response to moderate- and high-load strength and power training. Journal of Strength and Conditioning Research, https://doi.org/10.1519/JSC.0000000000003544

The aims of this study were to determine the changes in early (50-, 100-, 150-, 200-, 250 ms) and maximal isometric force production, in response to a 4-week period of moderate-load resistance training (60-82.5% 1 repetition maximum [1RM]), followed... Read More about Changes in early and maximal isometric force production in response to moderate- and high-load strength and power training.

Effect of asymmetry on biomechanical characteristics during 180° change of direction (2020)
Journal Article
Thomas, C., DosʼSantos, T., Comfort, P., & Jones, P. (2020). Effect of asymmetry on biomechanical characteristics during 180° change of direction. Journal of Strength and Conditioning Research, 34(5), 1297-1306. https://doi.org/10.1519/JSC.0000000000003553

The aim of this study was to explore the effect of asymmetry on biomechanical characteristics during two 180° change of direction (CoD) tasks (505 and modified 505 [505mod]). Fifty-two male (n = 24; age = 22.1 ± 4.8 years; height = 1.78 ± 0.06 m; bod... Read More about Effect of asymmetry on biomechanical characteristics during 180° change of direction.

Biomechanical determinants of the modified and traditional 505 change of direction speed test (2019)
Journal Article
DosʼSantos, T., McBurnie, A., Thomas, C., Comfort, P., & Jones, P. (2020). Biomechanical determinants of the modified and traditional 505 change of direction speed test. Journal of Strength and Conditioning Research, 34(5), 1285-1296. https://doi.org/10.1519/JSC.0000000000003439

The aim of this study was to investigate the whole-body biomechanical determinants of 180° change of direction (COD) performance. Sixty-one male athletes (age: 20.7 ± 3.8 years, height: 1.77 ± 0.06 m, mass: 74.7 ± 10.0 kg) from multiple sports (socce... Read More about Biomechanical determinants of the modified and traditional 505 change of direction speed test.

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 effect of training interventions on change of direction biomechanics associated with increased anterior cruciate ligament loading : a scoping review (2019)
Journal Article
Dos'Santos, T., Thomas, C., Comfort, P., & Jones, P. (2019). The effect of training interventions on change of direction biomechanics associated with increased anterior cruciate ligament loading : a scoping review. Sports Medicine, 49, 1837-1859. https://doi.org/10.1007/s40279-019-01171-0

Change of direction (COD) manoeuvres are associated with anterior cruciate ligament (ACL) injury risk due to the propensity to generate large multiplanar knee joint loads. Given the short- and long-term consequences of ACL injury, practitioners are i... Read More about The effect of training interventions on change of direction biomechanics associated with increased anterior cruciate ligament loading : a scoping review.

The effects of six-weeks change of direction speed and technique modification training on cutting performance and movement quality in male youth soccer players. (2019)
Journal Article
Dos'Santos, T., McBurnie, A., Comfort, P., & Jones, P. (2019). The effects of six-weeks change of direction speed and technique modification training on cutting performance and movement quality in male youth soccer players. Sports, 7(9), 205. https://doi.org/10.3390/sports7090205

Cutting manoeuvres are important actions associated with soccer performance and a key action associated with non-contact anterior cruciate ligament injury; thus, training interventions that can improve cutting performance and movement quality are of... Read More about The effects of six-weeks change of direction speed and technique modification training on cutting performance and movement quality in male youth 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.