Publications by authors named "Jay Dawes"

Lockie, RG, Young, MA, Lanham, SN, Orr, RM, Dawes, JJ, and Nagel, TR. Scenario and shooting performance in incumbent deputy sheriffs/police officers, cadets, and cadets who worked in custody/corrections facilities. J Strength Cond Res XX(X): 000-000, 2024-Job-specific fitness of law enforcement personnel can decline during their careers.

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Background/objectives: Custody officers (CO) are often exposed to workplace hazards when monitoring prisoners, managing prisoners' recreational time, or searching for contraband, yet research into their injuries is limited. This review aimed to identify, appraise, and synthesise research investigating injuries in CO.

Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol and registration with the Open Science Framework, a systematic search of five databases (PubMed, ProQuest, Embase, CINAHL and SportDiscus) using key search terms was conducted.

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Lockie, RG, Young, MA, Lanham, SN, Orr, RM, Dawes, JJ, and Nagel, TR. Retrospective analysis of grip and index finger strength, job-specific scenario, and shooting performance in incumbent law enforcement personnel and cadets. J Strength Cond Res XX(X): 000-000, 2024-This study investigated grip and index finger strength, and scenario performance, of incumbent deputy sheriffs/police officers.

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Marins, EF, de Araújo Rocha Junior, V, Castagna de Freitas, F, Rossy e Vasconcelos Júnior, J, Aparecido Minervi, N, Dawes, JJ, and Boscolo Del Vecchio, F. Unraveling the boundaries of police physical fitness: normative values of police physical fitness based on a representative sample of 8000 federal highway police officers aged 21-70 years from Brazil. J Strength Cond Res XX(X): 000-000, 2024-To develop age- and sex-based normative tables related to physical fitness components (cardiorespiratory fitness, muscular endurance, and power) from a representative sample of the Brazilian police population.

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The aim of this study was to determine the validity, reliability, and sensitivity of a new linear position transducer (LPT) device (RepOne) to a previously validated LPT (Tendo) during the barbell back squat and bench press exercises. Fourteen recreationally resistancetrained individuals (7 males and 7 females) performed three repetitions for the back squat and bench press at loads ranging from 30-90% 1RM. Both devices recorded average (ACV) and peak (PCV) concentric velocities concurrently for every repetition at each load.

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Law enforcement agencies typically have recruits complete fitness assessments without personal protective equipment (PPE). PPE negatively impacts performance. Greater strength and power could alleviate performance decrements due to the extra load, termed the tactical deficit (TD).

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Article Synopsis
  • - ACL injuries are influenced by various risk factors, and assessing movement quality during sports—especially during change of direction (COD) movements—can help reduce injury risk.
  • - Poor movement techniques, like knee valgus and lateral trunk flexion, are common causes of ACL injuries in sports that require quick directional changes.
  • - The commentary emphasizes the need for accessible, cost-effective tools for assessing COD movement quality in clinical settings to better identify athletes at risk for ACL injuries.
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Article Synopsis
  • This study investigates the impact of dummy weight (74.84 kg and 90.72 kg) and different dragging techniques on body drag times in a simulated law enforcement scenario with 43 physically-active civilians acting as police recruit surrogates.
  • Results showed that participants were faster with the lighter dummy and completed the standard drag technique quicker than both the adapted and preferred methods.
  • The findings suggest the need for law enforcement training programs to include strength training for handling heavier dummies and consider varying drag techniques to better prepare recruits for real-life scenarios.
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  • The study developed normative fitness data for Australian police recruits engaging in aerobic fitness tests, specifically the 20-meter multistage fitness test (20MSFT) and the 2.4-km run.
  • The analysis included data from 5 cohorts, totaling 1,536 recruits for the 20MSFT and 1,499 for the 2.4-km run, providing percentile rankings based on performance divided by sex and age groups.
  • Findings indicated that linear regression models could explain 65-74% of the performance variance between the two tests, facilitating fitness benchmarking, goal setting, and injury rehabilitation for law enforcement recruits.
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Fitness testing is employed by some law enforcement agencies to assure performance in occupational tasks. The aim of this study was to investigate associations between musculoskeletal fitness assessment scores and performance in police occupational tasks. Retrospective data from 106 law enforcement officers who completed five musculoskeletal fitness assessments (vertical jump (VJ), hand grip strength, leg back dynamometer, 1-minute push-ups and sit-ups) and three routine occupational tasks (1.

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Moreno, MR, Dawes, JJ, Orr, RM, Dulla, JM, and Lockie, RG. Relationships between strength and power with the 74.84-kg (165-lb) and 90.

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This study aimed to analyze the effect of box height on box jump performance among recreationally active college students. Fourteen males (age = 20.8 ± 4.

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The overhead squat, as part of the Functional Movement Screen (FMS), can analyze total- and lower-body mechanics. Shoulder taps, which incorporates a push-up position and challenges shoulder, trunk, and hip stability, may identify movement deficiencies indicated by multiple FMS actions which could be useful for law enforcement recruits. This study determined overhead squat and shoulder taps relationships, associations between these screens with body composition and fitness, and differences in body composition and fitness according to overhead squat/shoulder taps scores in recruits by sex.

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Lockie, RG, Orr, RM, Sanchez, KJ, Gonzales, SM, Viramontes, E, Kennedy, K, and Dawes, JJ. Relationships between physical ability test performance and fitness in recruits from a southeastern U.S.

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Article Synopsis
  • - Law enforcement agencies need to maximize the physical fitness of recruits during academy training since the job requires a mix of sedentary and demanding activities.
  • - A study examined 715 recruits and found that those starting with lower fitness levels showed greater improvements in physical assessments compared to more fit recruits, indicating a potential "ceiling effect."
  • - To enhance fitness outcomes, the study suggests that training programs should be tailored based on an individual's fitness level, with appropriate workloads for those already in good shape.
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Lockie, RG, Dulla, JM, Higuera, D, Ross, K, Orr, RM, Dawes, JJ, and Ruvalcaba, TJ. Age-related differences in body fat and fitness of firefighters participating in a health and wellness program. J Strength Cond Res 38(6): 1127-1135, 2024-Fitness tends to decline, whereas body fat increases, with age, which could impact firefighter occupational performance later in their careers.

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This study investigated the effects of a six-week strength training intervention on the physical fitness of female high school athletes, with a focus on training frequency. Twenty-three female high school basketball athletes were recruited and split into two groups: one group participated in strength training once per week (S1), while the other participated in two training sessions per week (S2). The groups were not random as training sessions were voluntary, and some participants were only able to train once per week.

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Softball is a sport that requires speed, agility, and lower-body power to be successful. Accordingly, strength and conditioning programs have focused on improving speed and lower-body power, which are beneficial to players performing softball-related tasks. The purpose of this study was to determine the correlation between absolute and relative lower-body strength to performance measures among female collegiate softball players.

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Lockie, RG, Orr, RM, Montes, F, and Dawes, JJ. Expanding research on firefighter trainee fitness, reasons for academy release, and the predictive capabilities of fitness tests. J Strength Cond Res 38(4): 724-733, 2024-Firefighter trainees need a level of fitness to be admitted to and complete a training academy.

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Lockie, RG, Orr, RM, Montes, F, and Dawes, JJ. A research note exploring the impact of firefighter trainee fitness on academy graduation or release. J Strength Cond Res 38(5): 999-1003, 2024-This study investigated the impact of fitness test performance on firefighter trainee ability to graduate an academy using ordinal logistic generalized linear models.

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Campbell, P, Maupin, D, Lockie, RG, Dawes, JJ, Simas, V, Canetti, E, Schram, B, and Orr, R. Determining the changes in law enforcement recruit aerobic fitness using the 2.4-km run and 20-m multistage fitness test.

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Thompson, MB, Johnson, QR, Lindsay, KG, and Dawes, JJ. Development of an abbreviated model for predicting functional movement screen score within tactical populations. J Strength Cond Res 38(3): 607-611, 2024-The Functional Movement Screen (FMS) is a tool commonly used to identify compensations when performing 7 specific movement patterns.

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Background: Fitness tests have been previously used to predict academy graduation and highlight specific capacities to be targeted in applicants/trainees to optimise their potential for academy success.

Objective: To compare the fitness of graduated and released (did not complete academy requirements) firefighter trainees and explore using decision tree analysis to predict academy graduation via fitness tests.

Methods: Retrospective analysis was conducted on 686 trainees who completed an occupational physical ability test (OPAT): Illinois agility test; push-ups; pull-ups; leg tucks; estimated maximal aerobic capacity (VO2max); backwards overhead 4.

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