Loughborough University
Browse
6 Lumbar Spine Bone Mineral in Adolescent Fast Bowlers According to Bowling Technique.pdf (280.38 kB)

Lumbar bone mineral adaptation: the effect of fast bowling technique in adolescent cricketers

Download (280.38 kB)
journal contribution
posted on 2022-05-30, 14:41 authored by Laura Keylock, Paul Felton, Pete Alway, Katherine Brooke-WavellKatherine Brooke-Wavell, Nicholas Peirce, Mark KingMark King

Introduction: Localized 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: Thirty-nine adolescent fast bowlers underwent anteroposterior dual x-ray absorptiometry scan of their lumbar spine. Hip, lumbopelvic and thoracolumbar joint kinematics, and vertical ground reaction kinetics were determined using three-dimensional 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% confidence interval [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 and ball release (BR), as well as contralateral pelvic drop at front foot contact, were identified as predictors of L1 to L4 BMD, explaining 65% of the variation. Maximum ipsilateral lumbopelvic rotation between back foot contact and BR, as well as ipsilateral lumbopelvic rotation and contralateral thoracolumbar side flexion at BR, were predictors of lumbar asymmetry within L3 and L4.

Conclusions: Thoracolumbar and lumbopelvic motion are implicated in the etiology 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.

History

School

  • Sport, Exercise and Health Sciences

Published in

Medicine and Science in Sports and Exercise

Volume

54

Issue

3

Pages

438 - 446

Publisher

Lippincott, Williams & Wilkins

Version

  • AM (Accepted Manuscript)

Rights holder

© American College of Sports Medicine

Publisher statement

This is a non-final version of an article published in final form in KEYLOCK, LAURA; FELTON, PAUL; ALWAY, PETER; BROOKE-WAVELL, KATHERINE; PEIRCE, NICHOLAS,; KING, MARK Lumbar Bone Mineral Adaptation: The Effect of Fast Bowling Technique in Adolescent Cricketers, Medicine & Science in Sports & Exercise: March 2022 - Volume 54 - Issue 3 - p 438-446 doi: 10.1249/MSS.0000000000002820.

Acceptance date

2021-10-01

Publication date

2021-10-28

Copyright date

2021

ISSN

0195-9131

eISSN

1530-0315

Language

  • en

Depositor

Dr Katherine Brooke Wavell. Deposit date: 27 May 2022

Usage metrics

    Loughborough Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC