ORCID Profile
0000-0002-1468-3901
Current Organisations
University of South Australia
,
Auckland University of Technology
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Publisher: Elsevier BV
Date: 05-2013
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 11-11-2022
Publisher: American Chemical Society (ACS)
Date: 22-10-2013
DOI: 10.1021/CG400858P
Publisher: Elsevier BV
Date: 05-2021
Publisher: Informa UK Limited
Date: 19-09-2021
DOI: 10.1080/02699052.2021.1972452
Abstract: To report pre-season baseline concussion assessment performance among senior rugby players and explore associations between assessment performance and player demographics. A cross-sectional study using the New Zealand Rugby Concussion Assessments (NZRCA), comprising symptom, cognitive and dynamic coordination assessments was conducted in the 2018-2019 season. Players' baseline assessments were characterised using descriptive statistics effect sizes (ES) and t-tests were used to explore associations between player demographic characteristics and NZRCA performance. A total of 733 players (11.4% female) aged between 16 and 52 years completed the NZRCA. The median (range) value for symptom severity, endorsed symptoms and "percentage normal" was respectively, 5 (0-40), 5 (0-21) and 90% (30-100%). A perfect standardised assessment of concussion score was achieved by one participant seven achieved ≥27/30 for immediate recall, and 22 achieved a perfect delayed recall score. Most participants (n = 674, 92%) passed the tandem gait test. Associations between NZRCA performance and gender, concussion history, and Pasifika ethnicity were observed with effect sizes ranging from small (0.18) to large (0.70). Six hundred and twenty-three (85%) participants reported at least one symptom. The results from this study could help support decision-making by clinicians, improving the management of concussions in the community setting.
Publisher: Elsevier BV
Date: 03-2021
Publisher: Elsevier BV
Date: 11-2022
DOI: 10.1016/J.PTSP.2022.10.013
Abstract: The aims of this study were to determine the prevalence of sport specialisation in youth football, and to investigate the associations of sport specialisation and volume of sport participation with injury history. Cross-sectional questionnaire. New Zealand youth football teams. 414 youth football players aged 10-15 years. The level of specialisation, average weekly sport participation and free-play volume were recorded. 12-month injury history was captured and grouped by injury type. Associations between level of specialisation and demographic variables were analysed using chi square tests. Logistic regression was used to investigate associations between injury history, level of specialisation, and volume of participation. Participants were classified as high (43%), moderate (38%), or low (19%) specialised (n = 399 complete). High specialisation was more likely in boys, older participants, and those from large schools. Highly specialised participants were more likely to report a history of gradual onset injury than those who were low specialised (n = 340 with complete injury data). Odds of reporting a gradual onset injury also increased with greater weekly and annual sport participation volume. There is a high prevalence of sport specialisation in youth football, and it is associated with increased incidence of gradual onset injury.
Publisher: Informa UK Limited
Date: 28-01-2022
DOI: 10.1080/02699052.2022.2033839
Abstract: To describe the collaborative development of a New Zealand Rugby Concussion Assessment (NZRCA) for primary care and to provide normative baseline data from a representative group of high school rugby players. This study, conducted over the 2018 and 2019 community rugby season where players were baseline tested during the pre- or start of season period. Data were collected from 1428 players (males n = 1121, females n = 307) with a mean age of 15.9 ± 1.4 years. The mean ± SD symptom severity score was 11.3 ± 8.6, the mean number of endorsed symptoms was 8.5 ± 5.3 and the percentage feeling "normal" was 80.2 ± 15.3%. Only 5.3% of players reported no symptoms at baseline. The most common reported were: 'distracted easily' (72.5%), 'forgetful' (68.5%), and 'often tired' (62.6%). None of the participants achieved a perfect score for the SAC50. The majority of participants (89.7%) passed the tandem gait test with a time of 12.2 ± 1.7 seconds. Age, gender, and ethnicity were associated with NZRCA performance albeit weakly. This study provides normative reference values for high-school rugby players. These data will aid healthcare providers in their identification of suspected concussion in the absence of in idualized baselines.
Publisher: American Chemical Society (ACS)
Date: 19-02-2014
DOI: 10.1021/CG401815A
Publisher: Informa UK Limited
Date: 07-02-2022
DOI: 10.1080/14763141.2022.2034928
Abstract: This systematic video analysis of 21 anterior cruciate ligament (ACL) injuries sustained by elite-level netball players during televised games, describes the situation, movement pattern and player behaviour, providing insight regarding the injury mechanism. Seventeen of the ACL injuries occurred from jump-landing actions and only two from cutting manoeuvres. A common scenario was identified for 11 players. In this scenario, players were decelerating rapidly after jumping to receive a high pass, utilising a double-footed landing with a wide base of support (WBOS). Deceleration appeared to be applied predominantly via the injured leg with the knee extended and foot planted. Often the players appeared unbalanced on landing leaning too far back. ACL injury risk was possibly exacerbated by the players head turning away from the injured side. A further compressive knee moment may have been placed on the lateral aspect of the knee by bringing the ball from a high position to a low position at the estimated time of injury. Players may benefit from landing technique training programmes that encourage shoulder-width foot landings, with ≥30° knee flexion, a small amount of plantar-flexion and good balance. Incorporating challenges to players balance and ability to cope with perturbations may also be beneficial. Training programmes should include instruction on securing the ball in a stable above pelvis-level position after receiving a pass and bringing their whole body around during landing into the direction of their next pass, rather than simply turning their head to look.
Publisher: American Chemical Society (ACS)
Date: 24-05-2013
DOI: 10.1021/CM4008393
No related grants have been discovered for Chris Whatman.