Dawes, James

Joseph, Aaron

Orr, Rob Marc

Schram, Ben

Wiley, Amy

English

The current literature suggests that load carriage can impact on a tactical officer’s mobility, and that survival in the field may rely on the officer’s mobility. The ability for humans to generate power and agility is critical for performance of the high-intensity movements required in the field of duty. The aims of this review were to critically examine the literature investigating the impacts of load carriage on measures of power and agility and to synthesize the findings. The authors completed a search of the literature using key search terms in four databases. After relevant studies were located using strict inclusion and exclusion criteria, the studies were critically appraised using the Downs and Black Checklist and relevant data were extracted and tabled. Fourteen studies were deemed relevant for this review, ranging in percentage quality scores from 42.85% to 71.43%. Outcome measures used in these studies to indicate levels of power and agility included short-distance sprints, vertical jumps, and agility runs, among others. Performance of both power and agility was shown to decrease when tactical load was added to the participants. This suggests that the increase in weight carried by tactical officers may put this population at risk of injury or fatality in the line of duty.<br/

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Bond UniversityResearch RepositoryThe Impact of Added Load on Measures of Power and Agility in a Tactical Population: ACritical ReviewJoseph, Aaron; Wiley, Amy; Orr, Rob Marc; Schram, Ben; Dawes, JamesPublished: 07/04/2018Document Version:Publisher's PDF, also known as Version of recordLink to publication in Bond University research repository.Recommended citation(APA):Joseph, A., Wiley, A., Orr, R. M., Schram, B., & Dawes, J. (2018). The Impact of Added Load on Measures ofPower and Agility in a Tactical Population: A Critical Review. Poster session presented at 2018 Rocky MountainAmerican College of Sports Medicine Annual Meeting, Colorado Springs, United States.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.For more information, or if you believe that this document breaches copyright, please contact the Bond University research repositorycoordinator.Download date: 10 May 2019RESEARCH POSTER PRESENTATION DESIGN © 2015www.PosterPresentations.comTactical populations, by nature of their occupations, are often required to perform tasks that require reacting and moving very quickly. These populations are also required to carry additional loads on a daily basis, such as stab-resistant body armour [1]. It has been established that load carriage impacts mobility [2], and that survival in the field may rely on the mobility of the tactical personnel. The ability for humans to generate power and agility is critical  for performance of the high-intensity movements required when performing duty tasks. Considering this, how load carriage impacts on the power and agility of the tactical personnel is of importance.INTRODUCTIONThe purpose of this review was to critically examine the current literature investigating the impacts of load carriage on measures of power and agility and to synthesise the findings. PURPOSE• Reviewers (AJ, AW) completed a search of the literature using key search terms in the following databases: PUBMED, EMBASE, CINAHL, SPORTDiscus• After identifying relevant studies (process detailed in Figure 1), reviewers appraised each study using a modified Downs and Black checklist [3]. The Critical Appraisal Score (CAS) of each article, represented in a percentage, was determined by a third author (RO) by settling any discrepancies between the raters. • The level of interrater agreement was determined using a Cohen’s kappa coefficient. Scores were then subjected to Kennelly’s rating system [4], and given a grade of ‘good’ (>61%), ‘fair (45-61%), or ‘poor’ (<45%). • Once appraisal was completed, pertinent data were extracted.METHODS• The mean CAS percentage for the methodological quality of the included studies was 58.16% (42.85-71.43%).• The Cohen’s kappa analysis revealed an interrater agreement of k = 0.728, indicating a ‘substantial agreement’ • Of the fourteen included studies, two studies measured the impact of added load on power, five studies measured the impact on agility, and  seven studies measured both power and agility.• Figure 2 represents the number of studies where power and agility were either affected or unaffected by added load. In general, power was shown to decrease when load was added to the tactical personnel, most significantly when completing a sprint.• Agility performance generally decreased when load was added, especially in fire and movement simulations and obstacle courses incorporating agility movements.RESULTSSUMMARY AND CONCLUSIONSCurrent literature indicates that performance of  both power and agility decrease when load is added to tactical personnel. This is significant given the fact that survivability in the line of duty is majorly influenced by the mobility of the officer [5]. The major increases in the modern day tactical officer’s load may prove to be detrimental to the officer’s safety in the field. IMPLICATIONSDue to this, it is critical that training procedures for tactical personnel include training for power and agility specifically. Other measures to reduce the load the officer is required to carry should also be implemented, such as lighter body armour.KEY REFERENCES[1]. Dempsey, P.C., P.J. Handcock, and N.J. Rehrer, Body armour: the effect of load, exercise and distraction on landing forces. J Sports Sci, 2014. 32(4): p. 301-6. [2]. Dempsey, P.C., Handcock, P.J., Rehrer, N.J. Impact of police body armour and equipment on mobility. Applied Ergonomics, 2013. 44(6): p. 957-961. [3]. Downs, S.H. and Black, N. The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions. Journal of Epidemiology and Community Health, 1998. 52(6): p. 377.[4]. Kennelly, J. Reducing Racial/Ethnic Disparities in Reproductive and Perinatal Outcomes, 1st ed; Springer: New York, NY , USA, 2011, [5] Lewinski, W.J., et al., The influence of officer equipment and protection on short sprinting performance. Applied Ergonomics, 2015. 47: p. 65-711 Bond Institute of Health and Sport, Bond University, Gold Coast, Australia: 2 Tactical Research Unit, Bond University, Gold Coast QLD 4229, Australia3 University of Colorado, Colorado Springs, Colorado, United StatesAaron Joseph1, Amy Wiley1, Robin Orr1,2, Ben Schram1,2, Jay Dawes3The Impact of Added Load on Measures of Power and Agility in a Tactical Population:A Critical ReviewFigure 2. Impact of adding load on specific outcome measuresFigure 1. PRISMA diagram detailing screening process 2018 RMACSM Annual MeetingApril 6-7, 2018

The Impact of Added Load on Measures of Power and Agility in a Tactical Population: A Critical Review

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The Impact of Added Load on Measures of Power and Agility in a Tactical Population: A Critical Review

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