Daniel Thomas Jackson

Mr. Daniel Thomas Jackson

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 July 2021 in Sports
Verified
Journal Article
Open access
PDF file
Adam Leigh KellyAdam Leigh Kelly
Adam Leigh Kelly
Sergio L. JiménezSergio L. Jiménez
Sergio L. Jiménez
ALBERTO LORENZO CALVOALBERTO LORENZO CALVO
ALBERTO LORENZO CALVO
Alfonso de la RubiaAlfonso de la Rubia
Alfonso de la Rubia
DJDaniel Thomas Jackson
Daniel Thomas Jackson
SSSara Santos
Sara Santos
Relative age effects (RAEs) appear consistently prevalent throughout the youth basketball literature. However, the selection into and successful transition out of a national talent pathway in basketball is yet to be explored. Thus, the primary aim of this study was to explore the influence of relative age, gender, and playing time based on the selection into the Regional Talent Hubs and Basketball England youth teams (U16, U18, and U20) and the successful transition into the England National Senior Teams. Participants who were selected into the male (n = 450) and female (n = 314) Basketball England Talent Pathway were allocated into one of three cohorts: (a) Regional Talent Hubs (U12 to U15; n = 183), (b) England National Youth Teams (U16, U18, and U20; n = 537), and (c) England National Senior Teams (n = 44). A chi-square test was used to compare the birth quarter (BQ) distributions of each cohort against the expected distributions, with a Cramer’s V (Vc) used to interpret effect sizes. Odds ratios (OR) and 95% confidence intervals were also calculated to compare the likelihood of each BQ being represented. Males revealed significant RAEs across both the Regional Talent Hubs (p < 0.001, Vc > 0.29, OR = 10) and England National Youth Teams (p < 0.001, Vc > 0.17, OR = 3.1). In comparison, females only had significant RAEs in the Regional Talent Hubs (p < 0.001, Vc > 0.29, OR = 2.3). Despite RAEs being prevalent throughout youth levels, there were no significant differences in the BQ distribution based on playing time and those who made the successful transition to the England National Senior Teams. These findings demonstrate the potential mechanisms of RAEs in basketball, as well as the impetus to explore more equitable competition structures within the England Basketball Talent Pathway.

21 January 2025 in Applied Sciences
Verified
Journal Article
Open access
PDF file
DJDaniel Thomas Jackson
Daniel Thomas Jackson
RBRichard C Blagrove
Richard C Blagrove
Peter Kevin ThainPeter Kevin Thain
Peter Kevin Thain
AWAnthony Weldon
Anthony Weldon
Adam Leigh KellyAdam Leigh Kelly
Adam Leigh Kelly
Background: Sports science and medicine (SSM) is integral to professional football clubs. The level below professional football in England, ‘non-league football’ (NLF), consists of full-time and part-time clubs. The existing literature has exclusively focused on SSM in professional football, with the resources and practices in NLF currently unknown. Therefore, this study explored the SSM resources and practices within NLF by investigating the perspectives of key stakeholders working within NLF coaching and SSM disciplines. Methods: Fifty participants (coaching practitioners [n = 25] and SSM practitioners [n = 25]) from NLF clubs completed an anonymous online survey comprising 31 multiple-choice and Likert-scale questions, alongside optional open-ended comments. Results: Support was mixed for SSM evidence-based practices across clubs in Tiers 5–10 within the National League System. The most common SSM resources were the training ground (n = 39), resistance training equipment (n = 15), and rehabilitation area (n = 13). Fitness testing was frequent (86%) pre-season but rare end-of-season (8%). Workload monitoring primarily consisted of the session duration (80%) and time–motion data (36%). Performance analysis of competitive matches commonly used video (74%) or post-match technical analysis (40%). Injury monitoring generally occurred ‘always’ (44%) or ‘sometimes’ (28%). Nutritional support on match days was mostly fluids (80%), with ‘no support’ reported most outside match days (54%). Conclusions: The SSM resources and practices vary considerably within NLF, influenced by individual club constraints and barriers, including financial support, access to facilities, and equipment availability. These findings may inform future SSM provisions in NLF to enhance team performances and player availability.

Verified
Journal Article
Open access
PDF file
Adam Leigh KellyAdam Leigh Kelly
Adam Leigh Kelly
Diogo CoutinhoDiogo Coutinho
Diogo Coutinho
JRJohn M Radnor
John M Radnor
KBKate Burke
Kate Burke
DBDonald Barrell
Donald Barrell
PBPaolo Riccardo Brustio
Paolo Riccardo Brustio
Relative age effects (RAEs) within sports refer to the overrepresentation of athletes born earlier in the selection year and the underrepresentation of those born later in the selection year. Research examining RAEs in women’s and girls’ rugby union remains limited in comparison to the male literature, whilst the impacts of RAEs on the youth–senior transition are yet to be explored in a female sport context. As such, the purpose of this study was to examine RAEs during entry into the women’s and girls’ premiership and international rugby union pathways in England, as well as to compare them to their respective senior cohort (n = 1367): (a) U18 England Rugby Centre of Excellence Player (n = 325) vs. Senior Premiership Player (n = 868), and (b) U18 England Player (n = 49) vs. Senior England Player (n = 125). Chi-square (χ2) analyses compared birth quarter (BQ) distributions against expected distributions. The findings revealed no significant difference in BQ distributions at either youth or senior levels, as well as no significant differences in the BQ distributions of those who were likely to transition from youth to senior levels (all p > 0.05). Importantly, though, descriptive statistics showed a skewed birthdate distribution in both U18 England Rugby Centre of Excellence Player (BQ1 = 30% vs. BQ4 = 20%) and U18 England Player cohorts (BQ1 = 33% vs. BQ4 = 18%). We highlight the gender-specific mechanisms that potentially explain the variations between male and female RAEs in rugby union, including developmental differences, sport popularity, and sociocultural norms. We also warn against a ‘copy and paste’ template from the male provision to ensure the recent growth of female rugby union does not fall victim to the same RAEs in the future.

30 April 2025 in Sensors
Verified
Journal Article
Open access
PDF file
DJDaniel Thomas Jackson
Daniel Thomas Jackson
RBRichard C Blagrove
Richard C Blagrove
Peter Kevin ThainPeter Kevin Thain
Peter Kevin Thain
AWAnthony Weldon
Anthony Weldon
Cain ClarkCain Clark
Cain Clark
Adam Leigh KellyAdam Leigh Kelly
Adam Leigh Kelly
Match running speed demands vary across competitive levels of football, influenced by player position, tactical considerations, and Head Coach changes. In England, the level directly below professional football, Non-League Football (NLF), comprises full-time and part-time clubs. However, the running speed demands of professional teams at this level remain unknown. Therefore, this study aimed to investigate (1) the match running speed demands in a professional NLF team, and (2) the impact of changing the Head Coach on these physical demands. Match running speed data were collected via Polar Team Pro global positioning system (GPS) devices during 41 matches of a tier 6 NLF team, comprising 311 observations of 22 full-time outfield players. Linear mixed-effect models examined the relationship between running speed metrics and fixed effects of a Head Coach change (n = 3), player position, and match outcome, with match number as a random effect. The team average total distance (TD) was 10,479 ± 42 m, and high-speed running and sprinting were 431 ± 62 m and 99 ± 26 m, respectively. The results showed significant positional differences, with wide defenders and midfielders associated with a greater TD than central defenders and strikers. Moreover, a change in Head Coach was significantly associated with a reduced TD, and a similar downward trend was observed across other running speed metrics. The TD and positional differences observed are comparable with other football cohorts, yet HSR and sprinting distances were notably lower in professional NLF. The findings highlight NLF clubs’ challenges in transitioning to higher competitive levels and provide insights for performance and training. Further research is warranted to explore the influence of running speed demands, technical and tactical factors, and other determinants on success in NLF.

29 April 2026 in International Journal of Performance Analysis in Sport
Verified
Journal Article
Open access
DJDaniel Thomas Jackson
Daniel Thomas Jackson
RBRichard C. Blagrove
Richard C. Blagrove
PTPeter K. Thain
Peter K. Thain
AWAnthony Weldon
Anthony Weldon
RHRichard Handyside
Richard Handyside
AKAdam L. Kelly
Adam L. Kelly

16 September 2026 in International Journal of Sports Science & Coaching
Verified
Journal Article
Closed access
KBKevin Braybrook
Kevin Braybrook
DJDaniel Thomas Jackson
Daniel Thomas Jackson
LHLaura Hodgson
Laura Hodgson
AKAdam L. Kelly
Adam L. Kelly
Women football coaches often experience learning within male-dominated environments, which can significantly shape their experiences and development opportunities. This study explored the actual and preferred forms and sources of learning among women football coaches, examining whether their current learning aligns with their perceived needs. A mixed methods survey was completed by 52 women coaches holding a minimum UEFA C qualification. Results revealed clear detachment between how coaches currently learn and how they would prefer to learn, with preferences for relational (mentoring and role models), situated (shadowing), and structured (internal continuous professional development) learning opportunities; all of which were significantly underrepresented in their actual experiences (e.g., mentoring: 38.5% vs. 92.3%, p < .0001; shadowing: 25% vs. 78.8%, p < .0001; internal CPD: 32.7% vs. 61.5%, = p < .0015; external CPD: 71.2% vs. 86.5%, p < .049). These findings highlight the need for more tailored coach education approaches that better reflect the learning preferences and lived experiences of women coaches.