Jon Oliver

Jon Oliver
Cardiff Metropolitan University | cardiffmet · Cardiff School of Sport

About

187
Publications
374,125
Reads
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6,705
Citations

Publications

Publications (187)
Article
Full-text available
Barillas, SR, Oliver, JL, Lloyd, RS, and Pedley, J. Kinetic responses to external cues are specific to both the type of cue and type of exercise in adolescent athletes. J Strength Cond Res XX(X): 000-000, 2022-The purpose of this study was to examine how external cues influence kinetics during isometric and dynamic tasks in adolescent athletes. Fif...
Conference Paper
Full-text available
INTRODUCTION: Drop jumps (DJ) are effective screening tools for stretch-shortening cycle (SSC) function in youth. During periods of accelerated growth, it has been postulated that youth experience disturbances in neuromuscular control termed "adolescent awkwardness". However, this has predominantly been assessed using fitness performance assessment...
Article
Full-text available
This cross-sectional study investigated how stretch-shortening cycle (SSC) function and kinetic variables differed between young female gymnasts of varying competitive levels. Drop jump (DJ) force-time profiles were examined in 118 female gymnasts, sub-divided by competitive level (n = 21 recreational, n = 41 regional and n = 50 elite). DJ force-ti...
Article
Full-text available
Background Weightlifting training (WLT) is commonly used to improve strength, power and speed in athletes. However, to date, WLT studies have either not compared training effects against those of other training methods, or been limited by small sample sizes, which are issues that can be resolved by pooling studies in a meta-analysis. Therefore, the...
Article
Full-text available
The aim of this review was to describe and summarize the scientific literature on programming parameters related to jump or plyometric training in male and female soccer players of different age and fitness levels. A literature search was conducted in the electronic databases PubMed, Web of Science and SCOPUS, using keywords related to the main top...
Article
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The purpose of this study was to examine the relationships between athletic motor skill competencies (AMSC), maturation, sex, body mass index, physical performance, and psychological constructs (motivation to exercise, physical self-efficacy, and global self-esteem). Two-hundred and twenty-four children aged 11–13 years old were included in the stu...
Article
Purpose: This study aimed to evaluate a 10-month neuromuscular training (NMT) intervention on isometric and dynamic kinetics, standing long jump (SLJ) distance, speed and sport-specific performance. Methods: Forty-three pre-pubertal female gymnasts were allocated into either a gymnastics + NMT (gNMT; n = 16), gymnastics only (GYM, n = 15) or mat...
Article
Read, PJ, Pedley, JS, Eirug, I, Sideris, V, and Oliver, JL. Impaired stretch-shortening cycle function persists despite improvements in reactive strength followingafter anterior cruciate ligament reconstruction. J Strength Cond Res 36(5): 1238-1244, 2022-Reactive strength index (RSI) during a single-leg drop jump (SLDJ) has been indicated to determ...
Article
Key points: It has long been hypothesised that cardiovascular adaptation to endurance training is augmented following puberty. We investigated whether differences in cardiac and haematological variables exist, and to what extent, between endurance-trained vs. untrained, pre- and post-peak height velocity (PHV) children, and how these central facto...
Article
Full-text available
This study aimed to: (1) examine differences in physical performance across birth-quartiles and maturity-status, and (2) determine the relationships among relative age, maturation and physical performance in young male soccer players. The sample included 199 males aged between 8.1 and 18.9 years, from two professional soccer academies in the Englis...
Article
Full-text available
The stretch‐shortening cycle (SSC) assists in effective force attenuation upon landing and augments force generation at take‐off during a drop vertical jump (DVJ). General performance outcomes such as jump height or peak measures have been used to assess SSC function in youth populations; however, these discrete metrics fail to provide insight into...
Article
This study aims to determine whether motor coordination influences the perception-decision time (perceptual-cognitive factor) and movement response time (physical factor) of young soccer players in a sport-specific agility task regardless of maturation. Eighty-seven young male soccer players were analysed. Anthropometric measurements were used to d...
Article
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Purpose: To conduct a systematic review and meta-analysis of epidemiological data of injuries in male and female youth football players. Methods: Searches were performed in MEDLINE/PubMed, Web of Science, Cochrane Library, and SPORTDiscus databases. Studies were considered if they reported injury incidence rate among male and female youth (≤19 yea...
Article
Full-text available
Leading health organizations and long- term athletic development models have identified the need to develop movement competencies in children and adolescents. The athletic motor skill competencies (AMSCs) have been identified as key skills that form the foundations of all athletic movements. The AMSCs form an integral part of the long-term athletic...
Article
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Background Youth populations benefit from neuromuscular training; however, the extent to which training frequency, baseline fitness, and maturity status moderate the response to long-term neuromuscular training in male youth remains unclear. Hypothesis Twice-weekly training (G2x) would induce larger improvements in movement competency and strength...
Article
The aims of the current study were to i) investigate differences in maximal rebound jump kinetics in boys at different stages of maturity, and ii) determine the relationship of muscle architecture characteristics to maximal rebound jump kinetics. One hundred twenty-seven male, secondary school children were categorised into maturity groups (pre-, c...
Article
Full-text available
The purpose of this article is to provide an overview of the growth, maturation and resistance training-related changes in muscle-tendon and neuromuscular mechanisms in youth, and the subsequent effect on performance. Sprinting, jumping, kicking, and throwing are common movements in sport that have been shown to develop naturally with age, with imp...
Article
Full-text available
Objectives To determine the inter-rater and intra-rater reliability of frontal and sagittal plane landing kinematic measures during drop jump (DVJ) and tuck jump (TJA) tasks in male youth soccer players, to assess the concurrent validity between DVJ and TJA tests, and to evaluate the ability of both tasks to detect differences between players’ stag...
Article
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The purpose of this study was to investigate the landscape of Fundamental Movement Skills (FMS) and strength development in professional football (soccer) academies in the UK. To achieve this, we interviewed 16 participants, whose primary responsibility was the physical development of youth players from a variety of Elite Player Performance Plan (E...
Article
PurposeNeuromuscular training aims to enhance motor skill competency and increase muscle strength. However, the effectiveness of short-duration interventions focused on addressing lower limb injury risk factors in male youth athletes at different stages of maturity remains unknown.Methods Forty-eight young male academy cricket players [pre-peak hei...
Article
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Despite previous misconceptions, youth participation in weightlifting is now recognized as safe and beneficial when delivered, programed, and monitored by a qualified professional. This article explores teaching progressions to help coaches periodize weightlifting training for young or novice athletes, with consideration to the theoretical concepts...
Article
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Context Arbitrary asymmetry thresholds are regularly used in professional soccer athletes, notwithstanding the sparse literature available to examine their prevalence. Objective To establish normative and positional asymmetry values for commonly used screening tests and investigate their relationships with jumping performance. Design Cross-sectio...
Article
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Radnor, JM, Oliver, JL, Waugh, CM, Myer, GD, and Lloyd, RS. Muscle Architecture and Maturation Influence Sprint and Jump Ability in Young Boys: A Multistudy Approach. J Strength Cond Res XX(X): 000-000, 2020-This series of experiments examined the influence of medial gastrocnemius (GM) and vastus lateralis (VL) muscle architecture (muscle thickness...
Article
Full-text available
Pedley, JS, Lloyd, RS, Read, PJ, Moore, IS, Myer, GD, and Oliver, JL. A novel method to categorize stretch-shortening cycle performance across maturity in youth soccer players. J Strength Cond Res XX(X): 000-000, 2020-This study used a novel method to categorize stretch-shortening cycle (SSC) function during a drop jump (DJ) using the force-time cu...
Article
Full-text available
Purpose Jump-landing assessments provide a means to quantify an individual’s ability to attenuate ground reaction forces, generate lower limb explosive power and maintain joint alignment. In order to identify risk factors that can be targeted through appropriate training interventions, it is necessary to establish which (scalar) objective kinetic,...
Article
Context: Single-leg hop tests are used to assess functional performance following anterior cruciate ligament (ACL) reconstruction. Recording 6-m timed hop scores using a stopwatch increases the potential for misclassification of patient status due to the number of error sources present. Objective: To examine the consistency of pass/fail (>90% li...
Article
Full-text available
An understanding of how movement competency, strength, and power interacts with natural growth and maturation is required in order to determine meaningful changes with developing athletes. Isometric and dynamic testing in youth athletes provide insight into the natural development of the force‐velocity (F‐V) spectrum. Two‐hundred and six young male...
Article
Full-text available
Leading global physical activity guidelines advocate that young children need to engage in activities that strengthen musculoskeletal tissues and improve movement skill competency. The purpose of this study was to examine the effects of delivering strength and conditioning as part of the physical education curriculum on athletic motor skill compete...
Article
Background The triple hop for distance test commonly uses a limb symmetry index (LSI) ‘pass’ threshold of > 90% for total hop distance following anterior cruciate ligament reconstruction (ACLR). However, understanding the manner in which athletes generate and dissipate forces during consecutive hops within the test may provide greater insight into...
Article
Full-text available
Cahill, MJ, Oliver, JL, Cronin, JB, Clark, K, Cross, MR, Lloyd, RS, and Lee, JE. Influence of resisted sled-pull training on the sprint force-velocity profile of male high-school athletes. J Strength Cond Res XX(X): 000-000, 2020-Although resisted sled towing is a commonly used method of sprint-specific training, little uniformity exists around tra...
Article
Full-text available
PurposeThis cross-sectional study investigated dynamic force–time variables and vaulting performance in young female gymnasts of different maturity status.Methods120 gymnasts aged 5–14 years were sub-divided into maturity groupings using percent of predicted adult height (%PAH) attained. Participants performed three jumping protocols, the squat jum...
Poster
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PURPOSE To examine the effects of a 9-month NMT intervention on isometric and dynamic force-time characteristics during strength and power tests and vertical takeoff velocity during gymnastics vaulting. METHODS Forty-three pre-pubertal female gymnasts were subdivided into gymnastics + NMT (GYM+NMT; n = 16), gymnastics only (GYM, n = 15) groups and...
Article
Objectives Examine growth and maturation trends in dynamic balance using the anterior reach Y-Balance test, and its utility as an injury risk screening tool. Design Cross sectional and prospective cohort. Setting Elite male youth soccer players. Participants 346 players grouped as pre, circa or post peak height velocity (PHV). Main outcome meas...
Poster
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An investigation of the effects of different training types on back squat performance and how changes in back squat performance influence changes in athletic motor skills.
Thesis
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Speed is an important athletic quality and needs to be developed in young athletes, this may be best achieved using specific forms of sprint training. Resisted sled training is a sprint specific form of training widely used by coaches and practitioners. The two modes of resisted sled training that exist are sled pushing and pulling, with limited re...
Article
Moeskops, S, Oliver, JL, Read, PJ, Cronin, JB, Myer, GD, Haff, GG, and Lloyd, RS. The influence of biological maturity and competitive level on isometric force-time curve variables and vaulting performance in young female gymnasts. J Strength Cond Res XX(X): 000-000, 2020-This cross-sectional study investigated isometric force-time curve variables...
Article
Objectives The purpose of this study was to examine whether the use of machine learning improved the ability of a neuromuscular screen to identify injury risk factors in elite male youth football players. Methods 355 elite youth football players aged 10–18 years old completed a prospective pre-season neuromuscular screen that included anthropometr...
Article
Full-text available
Sled pushing is a commonly used form of resisted sprint training, however little empirical evidence exists, especially in youth populations. The aim of this study was to assess the effectiveness of unresisted and resisted sled pushing across multiple loads. Fifty high school athletes were assigned to an unresisted (n=12), or 3 resisted groups; ligh...
Article
Full-text available
Purpose: To determine the differences in muscle architecture of the lower limb in pre-peak height velocity (PHV), circa-PHV, and post-PHV boys. Method: Muscle architecture variables from both the gastrocnemius medialis (GM) and vastus lateralis (VL) were derived from ultrasonographic images in 126 school-aged boys. One-way analysis of variance u...
Article
Full-text available
Dobbs, IJ, Oliver, JL, Wong, MA, Moore, IS, and Lloyd, RS. Effects of a 12-week training program on isometric and dynamic force-time characteristics in pre- and post-peak height velocity male athletes. J Strength Cond Res XX(X): 000-000, 2019-Literature shows that training children and adolescents can enhance strength and power irrespective of thei...
Article
Purpose: To quantify speed, peak momentum, standing long jump (SLJ), and the ratio of vertical to horizontal take-off velocity (Ratiovert-hori TOV) in young female gymnasts of different maturity status and their influence on vaulting vertical TOV. Methods: One hundred twenty gymnasts age 5-14 years were subdivided into maturity groupings using p...
Article
Objective: Determine how lower limb neuromuscular control changes over the course of a competitive soccer season. Design: Repeated measures. Setting: Academy soccer club. Participants: 43 male youth soccer players (age 13.1 ± 2.2 yr; height 160.1 ± 15.7 cm; body mass 49.4 ± 14.3 kg; maturity offset 0.2 ± 1.9 yr). Main outcome measures: Pre...
Article
Full-text available
Cahill, M, Oliver, JL, Cronin, JB, Clark, K, Cross, MR, and Lloyd, RS. Sled-push load-velocity profiling and implications for sprint training prescription in young athletes. J Strength Cond Res XX(X): 000-000, 2019-Resisted sled pushing is a popular method of sprint-specific training; however, little evidence exists to support the prescription of r...
Article
Full-text available
This study aimed to examine the extent to which maturity offset, strength, and movement competency influences motor skill performance in adolescent boys. One hundred and eight secondary school boys completed anthropometric and physical testing on two non-consecutive days for the following variables: Maturity offset, isometric mid-thigh pull absolut...
Article
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The purpose of this study was to investigate the effects of resistance training with or without weightlifting on risk factors for injury and resistance training skill in circa-peak height velocity boys. Sixty-seven boys (age 12-14 years) from a local secondary school were divided into three groups: combined resistance training (CRT), combined resis...
Article
Full-text available
Dobbs, IJ, Oliver, JL, Wong, MA, Moore, IS, Myer, GD, and Lloyd, RS. Effects of a 4-week neuromuscular training program on movement competency during the back-squat assessment in pre- and post-peak height velocity male athletes. J Strength Cond Res XX(X): 000-000, 2019-The back-squat assessment (BSA) is a novel movement screen to detect functional...
Article
Context Despite the popularity of jump-landing tasks being used to identify injury risk factors, minimal data currently exist examining differences in knee kinematics during commonly used bilateral jumping tasks. This is especially the case for rebounding-based protocols involving young athletes. Objective The purpose of this study was to compare...
Article
Full-text available
This study aimed to investigate the age‐related differences in sprinting performance, kinematic and kinetic variables in girls aged between 7.0 to 15.3 years. Step‐to‐step spatiotemporal variables and ground reaction impulses during sprinting were collected in 94 Japanese girls across a 50 m in‐ground force plate. From the results, a difference in...
Article
Full-text available
The purpose of this study was to examine the usefulness of individual load-velocity profiles and the between-athlete variation using the decrement in maximal velocity (Vdec) approach to prescribe training loads in resisted sled pulling in young athletes. Seventy high school, team sport, male athletes (age 16.7 ± 0.8 years) were recruited for the st...
Article
Full-text available
Resistance training and weightlifting are regarded as safe and effective training methods for youth. However, no studies have examined the effects of a year-long resistance training program using weightlifting movements on strength, speed or power. Therefore, the purpose of this study was to determine the long-term effects of combined resistance tr...