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Goggins L, Williams S, Griffin S, Langley B, Newman D, Peirce N. English and Welsh men's domestic cricket injury risk by activity and cricket type: A retrospective cohort study from 2010 to 2019. J Sci Med Sport 2024; 27:25-29. [PMID: 37953165 DOI: 10.1016/j.jsams.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/23/2023] [Accepted: 07/31/2023] [Indexed: 11/14/2023]
Abstract
OBJECTIVES Explore whether injury profiles and mechanisms differ between red (First-Class multi-day) ball cricket and white (One-Day and Twenty20 limited over) ball cricket in elite men's domestic cricket from 2010 to 2019. DESIGN Retrospective cohort analysis. METHODS Injury incidence calculated according to the updated international consensus statement on injury surveillance in cricket, along with seasonal days lost and injury severity descriptive statistics. RESULTS Across both cricket types, bowling resulted in the most seasonal days lost (mean 1942, 95 % confidence interval: 1799-2096) and highest mean injury severity (30 days, 95 % confidence interval: 28-33), with the lumbar spine the body region with the most seasonal days lost (mean 432 seasonal days; 95 % confidence interval: 355-525) from bowling. Injury incidence was higher in white ball compared to red ball cricket (per unit of time), with bowling (and its various phases) the most frequently occurring mechanism in both cricket types (white ball: 67.0 injuries per 1000 days of play [95 % confidence interval: 59.6-75.3]; red ball: 32.4 injuries per 1000 days of play [95 % confidence interval: 29.1-36.1]). When bowling, the abdomen and thigh were the body regions most injured from white (13.4 injuries per 1000 days of play [95 % confidence interval: 10.3-17.4]), and red ball (6.4 injuries per 1000 days of play [95 % confidence interval: 5.0-8.2]) cricket respectively. Overall, clear differences emerged in the nature and mechanism of injuries between red ball cricket and white ball cricket. CONCLUSIONS Bowling presents the highest injury risk (across both cricket types), as well as highlighting the increased risk of injuries from diving during fielding and running between the wickets when batting, in shorter white ball cricket.
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Affiliation(s)
- Luke Goggins
- England and Wales Cricket Board, National Cricket Performance Centre, Loughborough University, United Kingdom.
| | - Sean Williams
- Department for Health, University of Bath, United Kingdom
| | - Steve Griffin
- England and Wales Cricket Board, National Cricket Performance Centre, Loughborough University, United Kingdom
| | - Ben Langley
- England and Wales Cricket Board, National Cricket Performance Centre, Loughborough University, United Kingdom; Mumbai Indians, Mumbai, India
| | - David Newman
- England and Wales Cricket Board, National Cricket Performance Centre, Loughborough University, United Kingdom
| | - Nicholas Peirce
- England and Wales Cricket Board, National Cricket Performance Centre, Loughborough University, United Kingdom
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2
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Dhillon MS, Maini L. Editorial: Science and Medicine in Cricket. Indian J Orthop 2023; 57:1559-1560. [PMID: 37766946 PMCID: PMC10519883 DOI: 10.1007/s43465-023-00991-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Affiliation(s)
- M. S. Dhillon
- Department of Orthopaedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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3
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Farhart P, Beakley D, Diwan A, Duffield R, Rodriguez EP, Chamoli U, Watsford M. Intrinsic variables associated with low back pain and lumbar spine injury in fast bowlers in cricket: a systematic review. BMC Sports Sci Med Rehabil 2023; 15:114. [PMID: 37730648 PMCID: PMC10512628 DOI: 10.1186/s13102-023-00732-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/12/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND Lumbar spine injuries in fast bowlers account for the greatest missed playing time in cricket. A range of extrinsic and intrinsic variables are hypothesised to be associated with low back pain and lumbar spine injury in fast bowlers, and an improved understanding of intrinsic variables is necessary as these may alter load tolerance and injury risk associated with fast bowling. This review critically evaluated studies reporting intrinsic variables associated with low back pain and lumbar spine injury in fast bowlers and identified areas for future investigation. METHODS OVID Medline, EMBASE, SPORTDiscus, CINAHL, Web of Science and SCOPUS databases were last searched on 3 June 2022 to identify studies investigating intrinsic variables associated with low back pain and lumbar spine injury in cricket fast bowlers. Terms relevant to cricket fast bowling, and intrinsic variables associated with lumbar spine injury and low back pain in fast bowlers were searched. 1,503 abstracts were screened, and 118 full-text articles were appraised to determine whether they met inclusion criteria. Two authors independently screened search results and assessed risk of bias using a modified version of the Quality in Prognostic Studies tool. RESULTS Twenty-five studies met the inclusion criteria. Overall, no included studies demonstrated a low risk of bias, two studies were identified as moderate risk, and twenty-three studies were identified as high risk. Conflicting results were reported amongst studies investigating associations of fast bowling kinematics and kinetics, trunk and lumbar anatomical features, anthropometric traits, age, and neuromuscular characteristics with low back pain and lumbar spine injury. CONCLUSION Inconsistencies in results may be related to differences in study design, injury definitions, participant characteristics, measurement parameters, and statistical analyses. Low back pain and lumbar spine injury occurrence in fast bowlers remain high, and this may be due to an absence of low bias studies that have informed recommendations for their prevention. Future research should employ clearly defined injury outcomes, analyse continuous datasets, utilise models that better represent lumbar kinematics and kinetics during fast bowling, and better quantify previous injury, lumbar anatomical features and lumbar maturation. TRIAL REGISTRATION Open Science Framework https://doi.org/10.17605/OSF.IO/ERKZ2 .
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Affiliation(s)
- Patrick Farhart
- School of Sport, Exercise and Rehabilitation, Faculty of Health, Human Performance Research Centre, Moore Park Precinct, University of Technology Sydney, Broadway, NSW, 2007, Australia.
- Spine Labs, Discipline of Surgery, St. George and Sutherland Campus of the Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, NSW, 2217, Australia.
- Cricket New South Wales, 161 Silverwater Road, Sydney Olympic Park, Sydney, NSW, 2127, Australia.
- Delhi Capitals, JSW GMR Cricket Private Limited, Bahadurshah Zafar Marg, New Delhi, 110002, India.
| | - David Beakley
- Deakin University, Burwood Highway, Burwood, VIC, 3125, Australia
| | - Ashish Diwan
- Spine Labs, Discipline of Surgery, St. George and Sutherland Campus of the Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, NSW, 2217, Australia
- Spine Service, Department of Orthopaedic Surgery, St. George Hospital Campus, Kogarah, NSW, 2217, Australia
| | - Rob Duffield
- School of Sport, Exercise and Rehabilitation, Faculty of Health, Human Performance Research Centre, Moore Park Precinct, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - Elizabeth Pickering Rodriguez
- School of Sport, Exercise and Rehabilitation, Faculty of Health, Human Performance Research Centre, Moore Park Precinct, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - Uphar Chamoli
- Spine Labs, Discipline of Surgery, St. George and Sutherland Campus of the Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, NSW, 2217, Australia
- School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - Mark Watsford
- School of Sport, Exercise and Rehabilitation, Faculty of Health, Human Performance Research Centre, Moore Park Precinct, University of Technology Sydney, Broadway, NSW, 2007, Australia
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Felton PJ, Shine KJ, Yeadon MR, King MA. Optimal initial position and technique for the front foot contact phase of cricket fast bowling: Commonalities between individual-specific simulations of elite bowlers. J Biomech 2023; 158:111765. [PMID: 37579606 DOI: 10.1016/j.jbiomech.2023.111765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023]
Abstract
Group-based and individual-based studies in cricket fast bowling have identified common technique characteristics associated with ball release speed. The applicability of these findings to individual bowlers is often questioned, however, due to research approach limitations. This study aims to identify whether the optimal initial body position at front foot contact and subsequent technique to maximise ball release speed exhibit common characteristics for elite male cricket fast bowlers using individual-specific computer optimisations. A planar 16-segment whole-body torque-driven simulation model of the front foot contact phase of fast bowling was customised, evaluated, and the initial body position and subsequent movement pattern optimised, for ten elite male fast bowlers. The optimised techniques significantly increased ball release speed by 4.8 ± 1.3 ms-1 (13.5 ± 4.1%) and ranged between 37.8 and 42.9 ms-1, and in lower peak ground reaction forces and loading rates. Common characteristics were observed within the optimal initial body position with more extended front knees, as well as more flexion of the front and bowling arm shoulders than in current performances. Delays to the onset of trunk flexion, front arm and bowling arm shoulder extension, and wrist flexion were also common in the subsequent movement during the front foot contact phase. Lower front hip extensor and front shoulder flexor torques, as well as greater bowling shoulder extensor torques were also evident. This is useful knowledge for coach development, talent identification, and coaching practice.
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Affiliation(s)
- P J Felton
- School of Science and Technology, Nottingham Trent University, United Kingdom; School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom.
| | - K J Shine
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom; Nottinghamshire County Cricket Club, Nottingham, United Kingdom.
| | - M R Yeadon
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom.
| | - M A King
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom.
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5
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Yeadon MR, Pain MTG. Fifty years of performance-related sports biomechanics research. J Biomech 2023; 155:111666. [PMID: 37263075 DOI: 10.1016/j.jbiomech.2023.111666] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/03/2023]
Abstract
Over the past fifty years there has been considerable development in motion analysis systems and in computer simulation modelling of sports movements while the relevance and importance of functional variability of sports technique has become increasingly recognised. Technical developments for experimental work have led to increased, and still increasing, subject numbers. Increased subjects per study give better statistical power, the ability to utilise different data analyses, and thus the determination of more subtle and nuanced factors. The overall number of studies has also increased massively. Most actions in sport can, and have, been studied at some level with even the more challenging ones, such as player on player impacts, having some developing research. Computer simulation models of sports movements have ranged from simple (one or two segment) models to very complex musculoskeletal models and have used parameters ranging from the generic to individual-specific. Simple models have given insights into the key mechanics of movement while individual-specific model optimisations have been used to improve athlete performance. Our depth of understanding of the mechanics of sports techniques has increased across a wide range of sports. In the future there is likely to be more development and use of markerless motion capture, individual-specific model parameters, and more consideration of motor control aspects in the analysis of sports technique.
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Affiliation(s)
- M R Yeadon
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK.
| | - M T G Pain
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK
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6
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Felton PJ, McCaig S, King MA. Cricket fast bowling: The relationship between range of motion and key performance and injury technique characteristics. J Sports Sci 2023; 41:112-120. [PMID: 37125503 DOI: 10.1080/02640414.2023.2200520] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Fast bowling technique characteristics associated with performance and injury have been established; however, the effect of joint range of motion (ROM) on technique remains unknown. This study aimed to investigate ROM and its effect on fast bowling technique. Eighteen ROM measures and thirteen technique parameters were determined for 45 elite male fast bowlers. Twenty-three significant correlations were found between the shoulder, hip, and ankle ROM measures and technique parameters (r = 0.300-0.452; p < 0.05). Shoulder ROM was observed to have the highest number of correlations with fast bowling technique. Increased internal rotation, less external rotation, and greater total arc of rotation were associated with technique characteristics previously linked with increased ball release speed and decreased lumbar stress injury risk. Although hip and ankle ROM were also correlated with technique, their association is yet to be understood. Future research should aim to determine the impact of ROM on fast bowling movement patterns. This knowledge is likely to be useful in enhancing the coaching and rehabilitation of fast bowlers from lumbar stress injuries.
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Affiliation(s)
- P J Felton
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - S McCaig
- Athlete Health Directorate, UK Sports Institute, Manchester, UK
| | - M A King
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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7
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Epifano DJ, Ryan S, Clarke AC, Huynh M, Anderson H, Middleton KJ. Comparing tibial accelerations between delivery and follow-through foot strikes in cricket pace bowling. Sports Biomech 2022:1-14. [PMID: 36266941 DOI: 10.1080/14763141.2022.2136582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 10/11/2022] [Indexed: 10/24/2022]
Abstract
Foot strikes of the pace-bowling delivery stride produce large ground reaction forces, which may be linked to injury, yet the biomechanics of the follow-through are unknown. This study assessed tibial accelerations across the delivery and follow-through foot strikes in pace bowlers and evaluated relationships between these measures and five common pace-bowling intensity metrics. Fifteen sub-elite male pace bowlers performed deliveries at warm-up, match, and maximal intensities. Tibial accelerations were measured using tibial-mounted inertial measurement units and recorded at back- and front-foot initial and re-contacts. A trunk-worn global navigation satellite system unit measured PlayerLoad™, run-up speed, and distance. Ball speed and perceived exertion measures were also recorded. A linear mixed model showed statistical significance of prescribed intensities (p < .001) and foot strike for tibial acceleration (p < .001). Tibial accelerations showed positive increases with changes in prescribed intensity (p < .05). The greatest magnitude of tibial acceleration was found at back foot re-contact (mean ± SD; 1139 ± 319 m/s2). Repeated-measures correlations of tibial acceleration between foot contacts were weak (r = 0.2-0.4). The greatest magnitude of tibial acceleration reported at back foot re-contact may have implications for injury incidence, representing an important avenue for future pace bowling research.
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Affiliation(s)
- Daniel J Epifano
- Applied Biomechanics Laboratory, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Samuel Ryan
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Anthea C Clarke
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Minh Huynh
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Harvey Anderson
- Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield, South Yorkshire, UK
| | - Kane J Middleton
- Applied Biomechanics Laboratory, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
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8
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Alway P, Peirce N, Johnson W, King M, Kerslake R, Brooke-Wavell K. Activity specific areal bone mineral density is reduced in athletes with stress fracture and requires profound recovery time: A study of lumbar stress fracture in elite cricket fast bowlers. J Sci Med Sport 2022; 25:828-833. [PMID: 36064501 DOI: 10.1016/j.jsams.2022.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The aims of this study were to determine whether lumbar areal bone mineral density differed between cricket fast bowlers with and without lumbar stress fracture, and whether bone mineral density trajectories differed between groups during rehabilitation. DESIGN Cross-sectional and cohort. METHODS 29 elite male fast bowlers received a post-season anteroposterior lumbar dual-energy X-ray absorptiometry scan and a lumbar magnetic resonance imaging scan to determine stress fracture status. Participants were invited for three additional scans across the 59 weeks post baseline or diagnosis of injury. Bone mineral density was measured at L1 - L4 and ipsilateral and contralateral L3 and L4 sites. Independent-sample t-tests determined baseline differences in bone mineral density and multilevel models were used to examine differences in bone mineral density trajectories over time between injured and uninjured participants. RESULTS 17 participants with lumbar stress fracture had lower baseline bone mineral density at L1 - L4 (7.6 %, p = 0.034) and contralateral sites (8.8-10.4 %, p = 0.038-0.058) than uninjured participants. Bone mineral density at all sites decreased 1.9-3.0 % by 20-24 weeks before increasing to above baseline levels by 52 weeks post injury. CONCLUSIONS Injured fast bowlers had lower lumbar bone mineral density at diagnosis that decreased following injury and did not return to baseline until up to a year post-diagnosis. Localised maladaptation of bone mineral density may contribute to lumbar stress fracture. Bone mineral density loss following injury may increase risk of recurrence, therefore fast bowlers require careful management when returning to play.
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Affiliation(s)
- Peter Alway
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom; Department of Science and Medicine, England and Wales Cricket Board, United Kingdom.
| | - Nicholas Peirce
- Department of Science and Medicine, England and Wales Cricket Board, United Kingdom
| | - William Johnson
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom
| | - Mark King
- School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom
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Keylock L, Alway P, Felton P, McCaig S, Brooke-Wavell K, King M, Peirce N. Lumbar bone stress injuries and risk factors in adolescent cricket fast bowlers. J Sports Sci 2022; 40:1336-1342. [DOI: 10.1080/02640414.2022.2080161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Laura Keylock
- School of Sport Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Peter Alway
- School of Sport Exercise and Health Sciences, Loughborough University, Loughborough, UK
- National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, UK
| | - Paul Felton
- Department of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Steve McCaig
- Athlete Health, English Institute of Sport, Manchester, UK
| | | | - Mark King
- School of Sport Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Nicholas Peirce
- School of Sport Exercise and Health Sciences, Loughborough University, Loughborough, UK
- National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, UK
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10
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Alway P, Wedatilake T, Peirce N, Warren A, King M, Brooke-Wavell K. Bone health and asymmetry in elite female cricketers. Eur J Sport Sci 2022; 23:667-675. [PMID: 35414351 DOI: 10.1080/17461391.2022.2065929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study is to determine if bone mineral density (BMD) and bone asymmetry differs between female cricket fast bowlers, spin bowlers and batters. BMD was determined at the total body, lumbar spine, and proximal femurs in 12 fast bowlers, 13 batters and 11 spin bowlers from pre-season DXA scans. High Z-scores at the total body, lumbar spine, and proximal femur were observed in all cricketers (mean Z-scores: +1.4 to +3.3) compared with a general age matched reference population. Fast bowlers had significantly greater BMD on the contralateral side of the lumbar spine compared with the ipsilateral side (p = 0.001, 5.9 - 12.1%). No asymmetry was found between hips in all groups. All cricket positions demonstrated high BMD at all measured sites. The lumbar spine of fast bowlers is asymmetric, with significantly greater BMD on the contralateral side of the spine, particularly at L4, possibly in response to the asymmetric lumbar loading patterns observed in bowling.HIGHLIGHTS Elite female cricketers demonstrate high BMD at total body, lumbar spine and proximal femur sites, regardless of playing position compared with a general age and ethnic group matched reference populationFast bowlers have greater BMD on the contralateral (opposite bowling arm) side of the lumbar spine compared with the ipsilateral side, while a symmetrical pattern was observed in spin bowlers and batters.No asymmetry in BMD or section modulus between hips was observed at any proximal femur site for any cricket position.
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Affiliation(s)
- Peter Alway
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom.,Department of Science and Medicine, National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, United Kingdom
| | - Thamindu Wedatilake
- Department of Science and Medicine, National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, United Kingdom
| | - Nicholas Peirce
- Department of Science and Medicine, National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, United Kingdom
| | - Anna Warren
- Department of Science and Medicine, National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, United Kingdom
| | - Mark King
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom
| | - Katherine Brooke-Wavell
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom
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11
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Epifano DJ, Ryan S, Clarke AC, Middleton KJ. Objective assessment of fast bowling delivery intensity in amateur male cricketers. J Sports Sci 2021; 40:442-449. [PMID: 34812118 DOI: 10.1080/02640414.2021.1996987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Wearable microtechnology is effective in detecting fast deliveries in cricket, however methods to quantify delivery intensity have not been established. This study aimed to investigate the utility of wearable sensors in quantifying cricket fast bowling intensity.Fifteen sub-elite male fast bowlers performed deliveries at warm-up, match, and maximal intensities. A principal component analysis resulted in the selection of perceived exertion and seven variables of bowling exertion derived from trunk- (PlayerLoad™, trunk flexion velocity, trunk forward rotation velocity) and tibia-mounted (tibial acceleration at back foot contact, front foot contact, back foot re-contact and front foot re-contact) inertial measurement units for further analysis. Repeated measures ANOVAs were used to investigate the effect of intensity on outcome variables. Significant main effects of intensity and large effect sizes were identified for all variables (p < .05, np2 > 0.14). Measures from the match and maximal conditions were significantly larger compared with the warm-up condition (Pholm < .05). No differences were observed between the match and maximal conditions (p > .05). Inertial measurement metrics can distinguish between a warm-up effort and both match and maximal fast bowling delivery intensity. These devices provide a unique, time-efficient approach to cricket fast bowling exertion quantification.
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Affiliation(s)
- Daniel J Epifano
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
| | - Samuel Ryan
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
| | - Anthea C Clarke
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
| | - Kane J Middleton
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
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12
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Keylock L, Felton P, Alway P, Brooke-Wavell K, Peirce N, King M. Lumbar Bone Mineral Adaptation: The Effect of Fast Bowling Technique in Adolescent Cricketers. Med Sci Sports Exerc 2021; 54:438-446. [PMID: 34711706 DOI: 10.1249/mss.0000000000002820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Localised bone mineral density (BMD) adaptation of the lumbar spine, particularly on the contralateral side to the bowling arm, has been observed in elite male cricket fast bowlers. No study has investigated this in adolescents, or the role of fast bowling technique on lumbar BMD adaptation. This study aims to investigate lumbar BMD adaptation in adolescent cricket fast bowlers, and its relationship with fast bowling technique. METHODS 39 adolescent fast bowlers underwent antero-posterior DXA scan of their lumbar spine. Hip, lumbopelvic and thoracolumbar joint kinematics, and vertical ground reaction kinetics were determined using 3D motion capture and force plates. Significant partial (covariate: fat free mass) and bivariate correlations of the technique parameters with whole lumbar (L1-L4) BMD and BMD asymmetry (L3 and L4) were advanced as candidate variables for multiple stepwise linear regression. RESULTS Adolescent fast bowlers demonstrated high lumbar Z-Scores (+1.0; 95%CI: 0.7 - 1.4) and significantly greater BMD on the contralateral side of L3 (9.0%; 95%CI: 5.8 - 12.1%) and L4 (8.2%; 95%CI: 4.9 - 11.5%). Maximum contralateral thoracolumbar rotation and maximum ipsilateral lumbopelvic rotation in the period between back foot contact (BFC) and ball release (BR), as well as contralateral pelvic drop at front foot contact (FFC), were identified as predictors of L1-L4 BMD, explaining 65% of the variation. Maximum ipsilateral lumbopelvic rotation between BFC and BR, as well as ipsilateral lumbopelvic rotation and contralateral thoracolumbar side flexion at BR, were predictors of lumbar asymmetry within L3 and L4. CONCLUSION Thoracolumbar and lumbopelvic motion are implicated in the aetiology of the unique lumbar bone adaptation observed in fast bowlers whereas vertical ground reaction force, independent of body mass, was not. This may further implicate the osteogenic potential of torsional rather than impact loading in exercise-induced adaptation.
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Affiliation(s)
- Laura Keylock
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom Department of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom National Cricket Performance Centre, England and Wales Cricket Board, Loughborough, United Kingdom
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13
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Senington B, Lee RY, Williams JM. Validity and reliability of innovative field measurements of tibial accelerations and spinal kinematics during cricket fast bowling. Med Biol Eng Comput 2021; 59:1475-1484. [PMID: 34173966 PMCID: PMC8313468 DOI: 10.1007/s11517-021-02381-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 05/08/2021] [Indexed: 11/25/2022]
Abstract
The use of inertial sensors in fast bowling analysis may offer a cheaper and portable alternative to current methodologies. However, no previous studies have assessed the validity and reliability of such methods. Therefore, this study aimed to assess the validity and reliability of collecting tibial accelerations and spinal kinematics using inertial sensors during in vivo fast bowling. Thirty-five elite male fast bowlers volunteered for this study. An accelerometer attached to the skin over the tibia was used to determine impacts and inertial sensors over the S1, L1 and T1 spinous processes used to derive the relative kinematics. These measurements were compared to optoelectronic and force plate data for validity analysis. Most acceleration and kinematics variables measured report significant correlations > 0.8 with the corresponding gold standard measurement, with intraclass correlation coefficients greater than 0.7. Low standard error of measurement and consequently small minimum detectable change (MDC) values were also observed. This study demonstrates that inertial sensors are as valid and reliable as current methods of fast bowling analysis and may provide some advantages over traditional methods. The novel metrics and methods described in this study may aid coaches and practitioners in the design and monitoring of fast bowling technique. ![]()
Graphical abstract illustrating the synopsis of the findings from this paper.
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Affiliation(s)
- Billy Senington
- School of Biosciences and Medicine, University of Surrey, Guildford, GU2 7WG UK
| | - Raymond Y. Lee
- Faculty of Technology, Portsmouth University, Portsmouth, UK
| | - Jonathan Mark Williams
- Faculty of Health and Social Sciences, Bournemouth University, Bournemouth Gateway Building, St Paul’s Lane, Bournemouth, BH8 8GP Dorset UK
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