All Outputs (112)

Relationships between unilateral horizontal and vertical drop jumps and 20 metre sprint performance (2016)
Journal Article
Schuster, D., & Jones, P. (2016). Relationships between unilateral horizontal and vertical drop jumps and 20 metre sprint performance. Physical Therapy in Sport, 21, 20-25. https://doi.org/10.1016/j.ptsp.2016.02.007

Objectives: The purpose of this study was to compare the relationships between horizontal (HDJ) and vertical drop jumps (VDJ) to sprint performance. Design: Exploratory Study. Setting: Laboratory. Participants: Nineteen male collegiate participant... Read More about Relationships between unilateral horizontal and vertical drop jumps and 20 metre sprint performance.

Comparison of peak power output during exercises with similar lower-limb kinematics (2016)
Journal Article
with similar lower-limb kinematics. Journal of trainology, 5(1), 1-5. https://doi.org/10.17338/trainology.5.1_1

Objectives: The aim of this investigation was to compare peak power between the mid-thigh power clean, squat jump and push press.
Design and Methods: Eleven recreationally trained men (age 22.2 ± 3.5 yrs; height 178.6 ± 8.5 cm; body mass 88.7 ± 13.... Read More about Comparison of peak power output during exercises with similar lower-limb kinematics.

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.

Reliability of the 30-15 intermittent fitness test in semiprofessional soccer players (2016)
Journal Article
Thomas, C., Dos’Santos, T., Jones, P., & Comfort, P. (2016). Reliability of the 30-15 intermittent fitness test in semiprofessional soccer players. International Journal of Sports Physiology and Performance, 11(2), 172-175. https://doi.org/10.1123/ijspp.2015-0056

Purpose: The purpose of this investigation was to determine the reliability of the 30-15 Intermittent Fitness Test (30-15IFT) in semiprofessional soccer players. Methods: Fourteen male semiprofessional soccer players performed the 30-15IFT on 2 occas... Read More about Reliability of the 30-15 intermittent fitness test in semiprofessional soccer players.

Changing pivoting technique reduces knee valgus moments (2015)
Presentation / Conference Contribution

Changing direction is a common action involved in non-contact anterior cruciate ligament injuries in female athletes (Faude et al. [2005]. American Journal of Sports Medicine, 33, 1694-1700), as such actions involve lower limb postures that increase... Read More about Changing pivoting technique reduces knee valgus moments.

D2.S2.5(3). Changing pivoting technique reduces knee valgus moments : taken from Day 2. Free Communications – Biomechanics and Motor Behaviour (2015)
Journal Article
Jones, P., Barber, O., & Smith, L. (2015). D2.S2.5(3). Changing pivoting technique reduces knee valgus moments : taken from Day 2. Free Communications – Biomechanics and Motor Behaviour. Journal of Sports Sciences, 33(1), S62. https://doi.org/10.1080/02640414.2015.1110326

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.

Joint kinetics and kinematics during common lower limb rehabilitation exercises (2015)
Journal Article
Comfort, P., Jones, P., Smith, L., & Herrington, L. (2015). Joint kinetics and kinematics during common lower limb rehabilitation exercises. Journal of Athletic Training, 50(10), 1011-1018. https://doi.org/10.4085/1062-6050-50.9.05

Context: Unilateral body-weight exercises are commonly used to strengthen the lower limbs during rehabilitation after injury, but data comparing the loading of the limbs during these tasks are limited.
Objective: To compare joint kinetics and kinem... Read More about Joint kinetics and kinematics during common lower limb rehabilitation exercises.

Technique determinants of knee abduction moments during pivoting in female soccer players (2015)
Journal Article
Jones, P., Herrington, L., & Graham-Smith, P. (2016). Technique determinants of knee abduction moments during pivoting in female soccer players. Clinical Biomechanics, 31, 107-112. https://doi.org/10.1016/j.clinbiomech.2015.09.012

Background
No previous studies have investigated the optimal technique for pivoting with regard to reducing peak knee abduction moments and potential knee injury risk. The aim of this study was to investigate the relationships between technique char... Read More about Technique determinants of knee abduction moments during pivoting in female soccer players.

Technique determinants of knee joint loads during pivoting in female soccer players (2015)
Journal Article

Background: No previous studies have investigated the optimal technique for pivoting with regard to reducing
peak knee abduction moments and potential knee injury risk. The aim of this study was to investigate the relationships
between technique ch... Read More about Technique determinants of knee joint loads during pivoting in female soccer players.

An investigation into the relationship between maximum isometric strength and vertical jump performance (2015)
Journal Article
Thomas, C., Jones, P., Rothwell, J., Chiang, C., & Comfort, P. (2015). An investigation into the relationship between maximum isometric strength and vertical jump performance. Journal of Strength and Conditioning Research, 29(8), 2176-2185. https://doi.org/10.1519/JSC.0000000000000866

Research has demonstrated a clear relationship between dynamic strength and vertical jump (VJ) performance; however, the relationship of isometric strength and VJ performance has been studied less extensively. The aim of this study was to determine t... Read More about An investigation into the relationship between maximum isometric strength and vertical jump performance.

An investigation into the relationship between maximum Isometric strength and vertical jump performance (2015)
Journal Article
Thomas, C., Jones, P., Rothwell, J., Chiang, C., & Comfort, P. (2015). An investigation into the relationship between maximum Isometric strength and vertical jump performance. Journal of Strength and Conditioning Research, 29(8), 2176-2185. https://doi.org/10.1519/jsc.0000000000000866

Abstract: Thomas, C, Jones, PA, Rothwell, J, Chiang, CY, and Comfort, P. An investigation into the relationship between maximum isometric strength and vertical jump performance. J Strength Cond Res 29(8): 2176–2185, 2015—Research has demonstrated a c... Read More about An investigation into the relationship between maximum Isometric strength and vertical jump performance.

Reliability of the dynamic strength index in college athletes (2015)
Journal Article
Thomas, C., Jones, P., & Comfort, P. (2015). Reliability of the dynamic strength index in college athletes. International Journal of Sports Physiology and Performance, 10(5), 542-545. https://doi.org/10.1123/ijspp.2014-0255

Purpose: To determine the reliability of the Dynamic Strength Index (DSI) in college athletes. Method: Nineteen male college athletes performed the squat jump (SJ) and isometric midthigh pull (IMTP) to determine peak force, on 2 separate days. Relia... Read More about Reliability of the dynamic strength index in college athletes.

Technique determinants of knee joint loads during cutting in female soccer players (2015)
Journal Article
cutting in female soccer players. Human Movement Science, 42, 203-211. https://doi.org/10.1016/j.humov.2015.05.004

The aim of this study was to investigate the relationships between technique characteristics and knee abduction moments during 90° cuts. A cross sectional design involving 26 elite and sub-elite female soccer players (mean ± SD; age: 21 ± 3.2 years,... Read More about Technique determinants of knee joint loads during cutting in female soccer players.

Relationship between isometric mid-thigh pull variables and sprint and change of direction performance in collegiate athletes (2015)
Journal Article
Thomas, C., Comfort, P., Chiang, C., & Jones, P. (2015). Relationship between isometric mid-thigh pull variables and sprint and change of direction performance in collegiate athletes. Journal of trainology, 4(1), 6-10. https://doi.org/10.17338/trainology.4.1_6

Objectives: The aim of this investigation was to assess the use of isometric strength testing as a determinant of sprint and change of direction performance in collegiate athletes.
Design and Methods: Fourteen male collegiate athletes (mean ± SD; a... Read More about Relationship between isometric mid-thigh pull variables and sprint and change of direction performance in collegiate athletes.

The assisted nordic hamstring curl (2015)
Journal Article
Matthews, M., Jones, P., Cohen, D., & Matthews, H. (2015). The assisted nordic hamstring curl. Strength and Conditioning Journal, 37(1), 84-87. https://doi.org/10.1519/SSC.0000000000000084

Assisted nordic hamstring curls provide a mechanism for assisting the lower phases of a nordic hamstring curl, allowing training at increased hamstring muscle length positions and the performance of more repetitions. This exercise may be useful to ta... Read More about The assisted nordic hamstring curl.

The validity of the Nordic hamstring lower as a field-based assessment of eccentric hamstring strength (2015)
Journal Article
Sconce, E., Jones, P., Turner, E., Comfort, P., & Graham-Smith, P. (2015). The validity of the Nordic hamstring lower as a field-based assessment of eccentric hamstring strength. Journal of Sport Rehabilitation, 24(1), 13-20. https://doi.org/10.1123/JSR.2013-0097

Context: Hamstring injury-risk assessment has primarily been investigated using isokinetic dynamometry.
However, practical issues such as cost and availability limit the widespread application of isokinetics for
injury-risk assessment; thus, field-... Read More about The validity of the Nordic hamstring lower as a field-based assessment of eccentric hamstring strength.

Effect of knee and trunk angle on kinetic variables during the isometric mid-thigh pull : test-retest reliability (2015)
Journal Article
Comfort, P., Jones, P., McMahon, J., & Newton, R. (2015). Effect of knee and trunk angle on kinetic variables during the isometric mid-thigh pull : test-retest reliability. International Journal of Sports Physiology and Performance, 10(1), 58-63. https://doi.org/10.1123/ijspp.2014-0077

The isometric midthigh pull (IMTP) has been used to monitor changes in force, maximum rate of force development (mRFD), and impulse, with performance in this task being associated with performance in athletic tasks. Numerous postures have been adopte... Read More about Effect of knee and trunk angle on kinetic variables during the isometric mid-thigh pull : test-retest reliability.

The consistency of knee kinematic, kinetic, and ground reaction force variables collected during running and cutting manoeuvres (2014)
Presentation / Conference Contribution

Introduction: Abnormal biomechanics during sports activities
can lead to increased joint-reaction forces, an increased valgus
angle and increased load at the knee. The majority of studies that
assess lower-limb biomechanics commonly use 3D motion... Read More about The consistency of knee kinematic, kinetic, and ground reaction force variables collected during running and cutting manoeuvres.

A comparison of braking characteristics between pre-planned and unanticipated changing direction tasks in female soccer players: An exploratory study. Day 1. Posters – Biomechanics,BASES Annual Conference, 25th November 2014, St Georges Park, Burton (2014)
Journal Article
Jones, P., Stones, S., & Smith, L. (2014). A comparison of braking characteristics between pre-planned and unanticipated changing direction tasks in female soccer players: An exploratory study. Day 1. Posters – Biomechanics,BASES Annual Conference, 25th November 2014, St Georges Park, Burton. Journal of Sports Sciences, 32(sup 2), S25-S26. https://doi.org/10.1080/02640414.2014.968379