ECB Coaches Safety Pack
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The Swing of a Cricket Ball
SCIENCE BEHIND REVERSE SWING C.P.VINOD CSIR-National Chemical Laboratory Pune BACKGROUND INFORMATION • Swing bowling is a skill in cricket that bowlers use to get a batsmen out. • It involves bowling a ball in such a way that it curves or ‘swings’ in the air. • The process that causes this ball to swing can be explained through aerodynamics. Dynamics is the study of the cause of the motion and changes in motion Aerodynamics is a branch of Dynamics which studies the motion of air particularly when it interacts with a moving object There are basically four factors that govern swing of the cricket ball: Seam Asymmetry in ball due to uneven tear Speed Bowling Action Seam of cricket ball Asymmetry in ball due to uneven tear Cricket ball is made from a core of cork, which is layered with tightly wound string, and covered by a leather case with a slightly raised sewn seam Dimensions- Weight: 155.9 and 163.0 g 224 and 229 mm in circumference Speed Fast bowler between 130 to 160 KPH THE BOUNDARY LAYER • When a sphere travels through air, the air will be forced to negotiate a path around the ball • The Boundary Layer is defined as the small layer of air that is in contact with the surface of a projectile as it moves through the air • Initially the air that hits the front of the ball will stick to the ball and accelerate in order to obtain the balls velocity. • In doing so it applies pressure (Force) in the opposite direction to the balls velocity by NIII Law, this is known as a Drag Force. -
ECB Coaches-Safety-Pack
Coaches’ Safety Pack Contents Net Coaching - page 2 Practice Facilities - page 3 Bowling Machine Guidelines - page 9 Fielding Machine Guidelines - page 10 Net Discipline - page 11 Helmets and Face Protectors - page 12 Advice on Batting Equipment - page 14 Games Outdoors - page 15 Games Indoors - page 15 ECB Fast Bowling Directives - page 16 Injury Prevention for Fast Bowlers - page 17 Junior Cricketers Playing in Adult Matches - page 21 1 Net Coaching This pack has been designed to provide coaches with guidance on how to make sure that sessions they plan and deliver are safe and effective for their players. Providing good practice, assessing risk and ensuring a safe cricket environment are key aspects of coaching and it is vital that players are provided with a developmental, safe and fun experience. These guidelines are published by the ECB to promote appropriate best practice, standards and safety both indoors and outdoors in practice and matches at all levels of the game. It is appreciated that even if the guidelines are followed exhaustively, this will not prevent all injuries. Cricket is an intrinsically dangerous game and the elimination of all risk is not possible. Accidents will always happen. Participants in the game accept the risk individually and/or through their parents if minors. It is believed, however, that by following the guidelines, the risk of serious injury to players and spectators can be significantly reduced. These guidelines provide information on the following areas: . Practice Facilities . Indoor Nets . Outdoor Nets . Outfield Practice . Net Coaching . Bowling Machine Guidelines . Fielding Machine Guidelines . Net Discipline . Definition of a Hard Ball . -
INVESTOR PRESENTATION the Future of Sport Has Arrived
INVESTOR PRESENTATION The Future of Sport has Arrived October 2019 Commercial in Confidence This Investor Presentation is restricted to Sophisticated, Experienced and Professional Investors Global Sports Technology sector expected grow to be USD$31 billion by 2024. Sportcor is an Australian sporting technology company which integrates proprietary advanced electronics within traditional sports equipment and licenses the software and data rights globally. Secured a 5 year agreement with Kookaburra. Kookaburra launched their SmartBall with Sportcor electronics in August at the Ashes this year. Investment In agreement negotiations with Gray Nicolls Sports to embed the Sportcor electronics within the broad GNS product range: Steeden rugby league ball, Highlights cricket, hockey, water polo, netball, soccer, clothing, shoes and headgear. First mover advantage on Sportcor’s movement sensor technology, ready to accelerate to capitalise on this growing trend in sport globally. An independently tested and working product which can be applied to multiple sporting goods and wearables. Board of Directors chaired by Michael Kasprowicz (former Australian cricketer and currently a Cricket Australia Board Member, with a strong global network of athletes and administrators), and an experienced management team to drive growth. Commercial in Confidence 2 What is Sportcor Commercial in Confidence Demand for performance & engagement Fans Players are thirsty for want to next level optimise engagement, performance immersion and and training excitement Broadcasters are demanding new competitive content, in new formats, to elevate digital and broadcast audiences Commercial in in Confidence Confidence 4 Sportcor is a sports technology company powering data-driven sports engagement. Sportcor integrates its proprietary, Sportcor powers smart advanced electronics with traditional sporting goods sports equipment produced by leading global sport manufacturers. -
Design of Neck Protection Guards for Cricket Helmets
Design of Neck Protection Guards for Cricket Helmets T. Y. Pang a and P. Dabnichki School of Engineering, RMIT University, Bundoora Campus East, Bundoora VIC 3083, Australia Keywords: Cricket, Helmet, Neck, Guard, Design. Abstract: Cricket helmet safeguards have come under scrutiny due to the lack of protection at the basal skull and neck region, which resulted in the fatal injury of one Australian cricketer in 2014. Current cricket helmet design has a number of shortcomings, the major one being the lack of a neck guard. This paper introduces a novel neck protection guard that provides protection to a cricket helmet wearer’s head and neck, without restricting head movements and obstructing the airflow, but achieving a minimal weight. Adopting an engineering design approach, the concept was generated using computer aided design software. The design was performed through several iterative processes to achieve an optimal solution. A prototype was then created using rapid prototyping technology and tested experimentally to meet the objectives and design constraints. The experimental results showed that the novel neck protection guard reduced by more than 50% the head acceleration values in the drop test in accordance to Australian Standard AS/NZS 4499.1-3:1997 protective headgear for cricket. Further experimental and computer simulation analysis are recommended to select suitable materials for the neck guards with satisfactory levels of protection and impact-attenuation capabilities for users. 1 INTRODUCTION head and facial injuries (Ranson et al. 2013). Stretch (2000) conducted an experiment on six different Cricket helmets were introduced into the sport to helmets with different features and materials at three protect the head and face of batsman when a bowler different locations. -
Bowling Performance Assessed with a Smart Cricket Ball: a Novel Way of Profiling Bowlers †
Proceedings Bowling Performance Assessed with a Smart Cricket Ball: A Novel Way of Profiling Bowlers † Franz Konstantin Fuss 1,*, Batdelger Doljin 1 and René E. D. Ferdinands 2 1 Smart Products Engineering Program, Centre for Design Innovation, Swinburne University of Technology, Melbourne 3122, Australia; [email protected] 2 Department of Exercise and Sports Science, Faculty of Health Sciences, University of Sydney, Sydney 2141, Australia; [email protected] * Correspondence: [email protected]; Tel.: +61-3-9214-6882 † Presented at the 13th conference of the International Sports Engineering Association, Online, 22–26 June 2020. Published: 15 June 2020 Abstract: Profiling of spin bowlers is currently based on the assessment of translational velocity and spin rate (angular velocity). If two spin bowlers impart the same spin rate on the ball, but bowler A generates more spin rate than bowler B, then bowler A has a higher chance to be drafted, although bowler B has the potential to achieve the same spin rate, if the losses are minimized (e.g., by optimizing the bowler’s kinematics through training). We used a smart cricket ball for determining the spin rate and torque imparted on the ball at a high sampling frequency. The ratio of peak torque to maximum spin rate times 100 was used for determining the ‘spin bowling potential’. A ratio of greater than 1 has more potential to improve the spin rate. The spin bowling potential ranged from 0.77 to 1.42. Comparatively, the bowling potential in fast bowlers ranged from 1.46 to 1.95. Keywords: cricket; smart cricket ball; profiling; performance; skill; spin rate; torque; bowling potential 1. -
+91-9908899800/+91-9966600014 Email - [email protected] SACHIN TENDULKAR COMMENTS on LEVERAGE BOWLING MACHINES
Contact - +91-9908899800/+91-9966600014 Email - [email protected] SACHIN TENDULKAR COMMENTS ON LEVERAGE BOWLING MACHINES Contact - +91-9966600014 or +91-9908899800 RAHUL DRAVID COMMENTS ON LEVERAGE BOWLING MACHINES Contact - +91-9966600014 or +91-9908899800 A LOW COST TWO WHEEL BOWLING MACHINE FOR BASIC BATTING PRACTICE. FEATURES Polyurethane concave wheels Bowls Hard Balls 150 kmph speed Basic swing, spin Auto feeder ( optional) 180 V Ac power PRICE – Rs.59,900/- Contact - +91-9966600014 or +91-9908899800 PRICE – Rs. 99,900/- A COMPUTERIZED TWO WHEEL CRICKET BOWLING MACHINE Contact - +91-9966600014 or +91-9908899800 FEATURES – LEVERAGE WINNER TWO WHEEL CRICKET BOWLING MACHINE Digital Operations Two Wheel Profile Computerized operations with Polyurethane wheel Criptex software Speed – up to 170 Pre set variations Concave wheels kmph In Swing Seam grip Specialty Variations technology Out Swing Programming Mode Hard and Cricket Leg spin Balls Usage Off Spin Random Mode Googly Regenerative Ready Indicator breaking system Wrong-un Speed Indicator Head Cover for BOWLING safety VARIATIONS Video Analysis Software Angular Box Battery Backup Robotic Alignment MECHANICS DIGITAL & PC OPERATIONS Contact - +91-9966600014 or +91-9908899800 TWO WHEEL DESIGN Leverage Winner is a two wheel bowling machine with sensor driven concave polyurethane wheels. POLYURETHANE Concave WHEELS New generation Polyurethane Concave sleeve, which can withstand heat, sun and humid conditions. In Leverage Winner Bowling Machine concave flanges are designed for most of the kinetic energy transfer to the ball. Polyurethane concave wheel Up to 170kmph speed can be achieved without harming the ball. Life of the SEAM GRIP wheels is long and does not get damaged even after 5 to 10 years of extensive practice. -
Cricket Cat for Email.Qxd:Layout 1
cricket 2011 www.gray-nicolls.co.uk Station Road, Robertsbridge, East Sussex, TN32 5DH, England. Tel: +44 (0) 1580 880357 Fax: +44 (0) 1580 881156 e-mail: [email protected] www.gray-nicolls.co.uk where tradition meets innovation The players you see on the international stage in number of the world’s elite and we are proud that matched only by the skill and ability of the playing alongside this elite group and like them, 2011 are true authorities on all our equipment. so many of them trust their game with us. The Internationals and top players who choose to use you can be secure in the knowledge that you are Gray-Nicolls provides the power to an impressive quality of our bats and associated products is them. When you select a Gray-Nicolls bat, you are using a bat manufactured by the best. the best use the best Unique to the industry, Gray-Nicolls grows only the best English willow Since 1876 Gray-Nicolls have continued to manufacture cricket bats 2007 saw the launch of the ground-breaking Fusion handle. This Every Gray-Nicolls bat is made, hand finished and rigorously tested for the production of their cricket bats. Salix Caerulea or Alba Var to the very highest quality, in Robertsbridge, England. totally hollow carbon handle dramatically reduced the weight of the by our “Master Bat Makers”. varieties are grown and harvested by the Company in a willow bat allowing huge edges and a massive profile never seen before. Gray-Nicolls superior handle technology dates back to the ultra Gray-Nicolls is proud of its traditional Hand Crafted cricket bats replenishment programme pioneered over 50 years ago. -
CRICKET BATTING GLOVES P R O D U C T S
+91-8048405501 B. D. Mahajan & Sons Private Limited https://www.bdmcricket.net/ We are engaged in manufacturing, supplying, and exporting premium array of Cricket Equipment such as Cricket Bat, Cricket Ball and Cricket Batting Pad and many more. About Us We were set up in the year 1986 as B. D. Mahajan & Sons Private Limited, are committed to manufacturing, supplying, and exporting a huge array of Cricket Equipment such as Cricket Bat, Cricket Ball and Cricket Batting Pad and many more. We source the raw materials from reputed and trustworthy vendors to ensure immaculate standards of quality. We are diligently supported by teams of adept technicians, managers, and executives who work meticulously for achieving new milestones of product excellence. Our up to date production facilities are highly equipped with cutting edge machines and we use modern technologies to carry out seamless production. Our strong desire to offer the finest quality cricket accessories to our valued clients has established us as reputed organization that is driven by quality and client satisfaction. BDM range of Cricket Bats and Cricket Accessories have been used by renowned cricketers for more than 8 decades and these are recognized as trend setters. We constantly upgrade our products by keeping pace with the new trends and changing requirements of cricketers. We use state of the art technologies to produce wide array of cricket accessories by maintaining rigorous norms of quality in adherence to well defined standards of the industry. We have a robust infrastructure that is well equipped with high-tech machines and facilities and we have divided our works into various divisions for streamlining of different.. -
Cricket Bats, Badminton Rackets and Shuttle Cocks, Tennis Racket, Fitness Equipment and Sports Football
+91-8048412986 Harmony Sports India https://www.indiamart.com/harmonysportsindia/ Harmony Sports India is one of the well reputed and leading firms engaged in Manufacturing, Trading and Supplying a finest quality range of Badminton Rackets, Fitness Equipment and Sports Football. About Us Established in the year 2014 we, Harmony Sports India, are an eminent name involved in Manufacturing, Supplying and Trading a comprehensive range of Cricket Balls, Cricket Gloves And Pads, Sports Tracksuits, Carrom Board, Trophies And Awards, Cricket Bats, Badminton Rackets And Shuttle Cocks, Tennis Racket, Fitness Equipment and Sports Football. Manufactured using optimum-grade basic material and advanced production technique, this range is featured with durability, smooth-finish and quality. Keeping in mind divergent demands of the clients, we offer all our products in different sizes, colors and designs. Along with this, we provide our clients with customization services as per their requirement. We are benefited by a team of professionals and sound infrastructure setup that make us to accomplish undertaken consignments. Our team comprises designers, managers, weavers, production personnel, who hold enormous understanding of their concerned domain. Professionals that we are supported by, conduct surveys to understand emerging requirements of players and then make assiduous efforts to develop innovative products as per the same. They interact with the clients not only to understand their requirement but also to get feedback on our business practices, -
Mouthguard Material B Westerman, P M Stringfellow, J a Eccleston
51 Br J Sports Med: first published as 10.1136/bjsm.36.1.51 on 1 February 2002. Downloaded from ORIGINAL ARTICLE Beneficial effects of air inclusions on the performance of ethylene vinyl acetate (EVA) mouthguard material B Westerman, P M Stringfellow, J A Eccleston ............................................................................................................................. Br J Sports Med 2002;36:51–53 Objective: To investigate the impact characteristics of an ethylene vinyl acetate (EVA) mouthguard material with regulated air inclusions, which included various air cell volumes and wall thickness between air cells. In particular, the aim was to identify the magnitude and direction of forces within the impacts. See end of article for authors’ affiliations Method: EVA mouthguard material, 4 mm thick and with and without air inclusions, was impacted with ....................... a constant force impact pendulum with an energy of 4.4 J and a velocity of 3 m/s. Transmitted forces through the EVA material were measured using an accelerometer, which also allowed the determina- Correspondence to: tion of force direction and magnitude within the impacts. Dr Westerman, 500 Sandgate Road, Clayfield Results: Statistically significant reductions in the transmitted forces were observed with all the air inclu- 4011, Queensland, sion materials when compared with EVA without air inclusions. Maximum transmitted force through one Australia; air inclusion material was reduced by 32%. Force rebound was eliminated in one material, and [email protected] reduced second force impulses were observed in all the air inclusion materials. Accepted 12 July 2001 Conclusion: The regulated air inclusions improved the impact characteristics of the EVA mouthguard ....................... material, the material most commonly used in mouthguards world wide. -
– the Game of Test Cricket Part 5
24 LIFE NEWSPAPERS IN EDUCATION sunshinecoastdaily.com.au Thursday, November 23, 2017 Catch this THE Baggy Green is the nickname given to the capeach 4 cricketer in the Aussie side wears on their head. A baggy PART green cap has been a part of the Australian test cricket NiE uniform since the early twentieth century. TERMS EQUIPMENT REQUIRED LIKE all sports, the game of cricket has its own set OTHER than the on field equipment of of rules. Knowing these HOWZAT stumps and bails, there are a few pieces of terms will help you equipment required to play the game. understand the game. ■ A ball average, bowling - The The ball used in cricket is a cork ball total of runs scored off a covered in leather, weighing between 155.9g bowler in the period to – THE GAME OF TEST and 163g. The two most common colours of which the average refers, cricket balls are red – used in Test cricket divided by the number of and First Class cricket, and white – used in wickets he took in that One Day matches. period. A proficient ■ A bat bowler will aim for an CRICKET Bats used in cricket are made of flat wood, average of less than 30. and connected to a conical handle. They are hat trick - Three wickets not allowed to be longer than 96.5cm and taken in successive TODAY the first ball will be bowled in the 2017/18 Test series have to be less than 10.8cm wide. While balls. A bowler who has there is no standard weight, most bats taken two successive between Australia and England at the Gabba cricket ground range between 1.2kg and 1.4kg. -
The Big Three Era Starts
151 editions of the world’s most famous sports book WisdenEXTRA No. 12, July 2014 England v India Test series The Big Three era starts now Given that you can bet on almost anything these most recent book was a lovely biography of Bishan days, it would have been interesting to know the odds Bedi – a stylist who played all his international cricket on the first Test series under N. Srinivasan’s ICC before India’s 1983 World Cup win and the country’s chairmanship running to five matches. (Actually, on wider liberalisation. Since then, the IPL has moved the reflection, let’s steer clear of the betting issue.) But goalposts once again. Menon is in an ideal position to certainly, until this summer, many assumed that – examine what Test cricket means to Indians across the barring the Ashes – the five-Test series was extinct. Yet, social spectrum. here we are, embarking on the first since 2004-05 – The Ranji Trophy has withstood all this to remain when England clung on to win 2–1 in South Africa. the breeding ground for Indian Test cricketers. Although Not so long ago, five- or even six-match series it has never commanded quite the same affection as between the leading Test nations were the core of the the County Championship, it can still produce its fair calendar. Sometimes, when it rained in England or share of romance. We delve into the Wisden archives someone took an early lead in the subcontinent, the to reproduce Siddhartha Vaidyanathan’s account of cricket could be dreary in the extreme.