Evaluation of an Anthropometric Fast Bowling Machine

Ronnie Bickramdass,Kelvin Loutan Jr,Prakash Persad

doi:10.28991/hij-2021-02-02-04

Ronnie Bickramdass, Kelvin Loutan Jr + Show 1 more

Open Access

https://doi.org/10.28991/hij-2021-02-02-04

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Abstract

The use of bowling machines to train batsmen whether it be indoors or outdoors has increased significantly. In the absence of bowlers, batsmen can bat for hours without any bowlers getting tired. The designs of these machines are often a derivative of ball projection machines used for other sports such as tennis. Reviewed literature highlights the deficit in visual information in the form of an arm and hand when using these machines. Hence a cricket bowling machine was developed with an arm and hand. The usability, functionality, repeatability, and accuracy of the cricket bowling machine with an arm and hand was tested which had been previously designed and built by Loutan Jr. (2016) at The University of Trinidad and Tobago. A trajectory model was developed for an indoor environment and experimentally validated with data collected from extensive testing of the bowling machine using Pitch Vision hardware and software. A design procedure had to be formulated to determine what test had to be done and the method of collecting data. The testing, data collection and validation of the model was done with the cricket bowling machine in its current state with minor changes to the hand. The release angle at which the ball leaves the hand was found to have a significant impact on the length (distance along the pitch the ball bounces) of the delivery. Finally, the bowling machine was able to bowl various lengths and varying speeds consistently. The variation in speed placed the machine in the category of medium-fast, that is, speeds between 120 km/h (75 mph) and 130 km/h (81mph). Doi: 10.28991/HIJ-2021-02-02-04 Full Text: PDF

Highlights

With the advent of the twenty over format, the spectatorship of cricket has increased
This study focuses on evaluating the efficacy of an anthropometrically dimensioned fast bowling machine with an arm and hand, design and built by Loutan Jr. (2016) [22]
In phase 1 testing, 6 overs were bowled at a constant spring extension of 780 mm (80 mph), with the wrist angle being manipulated for each over

Summary

Introduction

With the advent of the twenty over format, the spectatorship of cricket has increased. This increase is fueled by the formation of individual country leagues that showcases teams comprising of players of various nationalities. Pace bowling generates the most injuries [4,5,6,7,8] with hamstrings being the most reported and lumbar stress fracture being the most severe [7]. In reviewing data from South African national teams, identified players younger than 24 years old were the most susceptible to bowling injuries [6]

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