ORIGINAL PAPER
Body composition and physical capabilities of newly admitted police officers: changes during a training course
 
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1
Federal University of Santa Catarina, Florianopolis, Brazil
 
2
Regional University of Blumenau, Blumenau, Brazil
 
 
Submission date: 2022-10-08
 
 
Acceptance date: 2023-02-22
 
 
Publication date: 2023-08-04
 
 
Hum Mov. 2023;24(3):106-114
 
KEYWORDS
TOPICS
ABSTRACT
Purpose:
To investigate the changes that occur to body composition and physical fitness of newly admitted military police officers that undergo a training course involving a 24 weeks of physical training.

Methods:
One-hundred and seven male police officers were evaluated before, after 12 weeks, and after 24 weeks of physical training. Body mass, fat mass, fat-free mass, fat percentage and body mass index were measured. Physical capabilities of strength (push-ups), muscle resistance (sit-ups), handgrip strength, and aerobic capacity (VO2max) were also measured.

Results:
An Anova with repeated measurements showed that after 24 weeks, there was a decrease (p < 0.01) of fat mass and fat percentage, and an increase (p < 0.01) in fat-free mass, number of push-ups, handgrip strength, and VO2max. Most of the dependent variables already showed the best values in week 12.

Conclusions:
Positive changes were observed in the body composition, aerobic capacity, and muscle strength of newly admitted military police officers at the end of 24 weeks of physical training, applied during the Soldier Training Course, compared to the beginning. However, the improvements occurred up to 12 weeks, with no new improvements after this, suggesting that modifications to the physical training are necessary.

REFERENCES (38)
1.
Cocke C, Dawes J, Orr RM. The use of 2 conditioning programs and the fitness characteristics of police academy cadets. J Athl Train. 2016;51(1):887–896; doi: 10.4085/1062-6050-51.8.06.
 
2.
Plat MJ, Frings-Dresen MHW, Sluiter JK. A systematic review of job-specific workers’ health surveillance activities for fire-fighting, ambulance, police and military personnel. Int Arch Occup Environ Health. 2011;84(8): 839–857; doi: 10.1007/s00420-011-0614-y.
 
3.
Bonneau J, Brown J. Physical ability, fitness and police work. J Clin Forensic Med. 1995;2(3):157–164; doi: 10.1016/1353-1131(95)90085-3.
 
4.
Orr R, Dawes JJ, Pope R, Terry J. Assessing differences in anthropometric and fitness characteristics between police academy cadets and incumbent officers. J Strength Cond Res. 2018;32(9):2632–2641; doi: 10.1519/JSC. 0000000000002328.
 
5.
Sorensen L, Smolander J, Louhevaara V, Korhonen O, Oja P. Physical activity, fitness and body composition of finnish police officers: a 15-year follow-up study. Occup Med. 2000;50(1):3–10; doi: 10.1093/occmed/50.1.3.
 
6.
Crawley AA, Sherman RA, Crawley WR, Cosio-Lima LM. Physical fitness of police academy cadets: baseline characteristics and changes during a 16-week academy. J Strength Cond Res. 2016;30(5):1416–1424; doi: 10.1519/ JSC.0000000000001229.
 
7.
Rossomanno CI, Herrick JE, Kirk SM, Kirk EP. A 6-month supervised employer-based minimal exercise program for police officers improves fitness. J Strength Cond Res. 2012;26(9):2338–2344; doi: 10.1519/JSC. 0b013e31823f2b64.
 
8.
Boyce RW, Jones GR, Schendt KE, Lloyd CL, Boone EL. Longitudinal changes in strength of police officers with gender comparisons. J Strength Cond Res. 2009;23(8): 2411–2418; doi: 10.1519/JSC.0b013e3181bac2ab.
 
9.
Pihlainen K, Santtila M, Hakkinen K, Kyrolainen H. Associations of physical fitness and body composition characteristics with simulated military task performance. J Strength Cond Res. 2018;32(4):1089–1098; doi: 10.1519/JSC.0000000000001921.
 
10.
World Health Organization. Global report on diabetes. Geneva: World Health Organization; 2016.
 
11.
Marins EF, David GB, Del Vecchio FB. Characterization of the physical fitness of police officers: a systematic review. J Strength Cond Res. 2019;33(10):2860–2874; doi: 10.1519/JSC.0000000000003177.
 
12.
Čvorović A, Kukić F, Orr RM, Dawes JJ, Jeknić V, Stojković M. Impact of a 12-week postgraduate training course on the body composition and physical abilities of police trainees. J Strength Cond Res. 2021;35(3): 826–832; doi: 10.1519/JSC.0000000000002834.
 
13.
Petroski EL. Development and validation of generalized equations for estimating body density in adults [in Portuguese]. Thesis [PhD in Human Movement Science] – Santa Maria, Federal University of Santa Maria; 1995.
 
14.
Siri WE. Body Composition from Fluid Spaces and Density: Analysis of Methods. In: Brozek J, Henschel A (eds). Techniques for Measuring Body Compositions. Washington DC: National Academy of Sciences; 1961.
 
15.
Dawes JJ, Orr RM, Siekaniec CL, Vanderwoude AA, Pope R. Associations between anthropometric characteristics and physical performance in male law enforcement officers: a retrospective cohort study. Ann Occup Environ Med. 2016;28:1–7; doi: 10.1186/s40557- 016-0112-5.
 
16.
Fukuda DH. Assessments for sport and athletic performance. Champaign: Human Kinetics; 2019.
 
17.
McArdle WD, Katch FI, Pechar GS, Jacobson L, Ruck S. Reliability and interrelationships between maximal oxygen intake, physical work capacity and step-test scores in college women. Med Sci Sports. 1972;4(4): 182–186.
 
18.
Lee DK. Alternatives to P value: confidence interval and effect size. Korean J Anesthesiol. 2016;69(6):555– 562; doi: 10.4097/kjae.2016.69.6.555.
 
19.
Thompson D, Karpe F, Lafontan M, Frayn K. Physical activity and exercise in the regulation of human adipose tissue physiology. Physiol Rev. 2012;92(1):157–191; doi: 10.1152/physrev.00012.2011.
 
20.
Ranallo RF, Rhodes EC. Lipid metabolism during exercise. Sports Med. 1998;26(1):29–42; doi: 10.2165/ 00007256-199826010-00003.
 
21.
Spriet LL. Metabolic regulation of fat use during exercise and in recovery. In: Maughan RJ, Burke LM (eds). Sports Nutrition: More Than Just Calories – Triggers for Adaptation. 2012;69:39–58; doi: 10.1159/000329281.
 
22.
Lohman TG. Advances in body composition assessment. Champaign: Human Kinetics; 1992.
 
23.
Charlton K, Batterham M, Langford K, Lateo J, Brock E, Walton K, et al. Lean body mass associated with upper body strength in healthy older adults while higher body fat limits lower extremity performance and endurance. Nutrients. 2015;7(9):7126–7142; doi: 10.3390/ nu7095327.
 
24.
Ho-Pham LT, Nguyen ND, Lai TQ, Nguyen TV. Contributions of lean mass and fat mass to bone mineral density: a study in postmenopausal women. BMC Musculoskelet Disord. 2010;11(59):1–9; doi: 10.1186/1471- 2474-11-59.
 
25.
Haines MS, Dichtel LE, Santoso K, Torriani M, Miller KK, Bredella MA. Association between muscle mass and insulin sensitivity independent of detrimental adipose depots in young adults with overweight/obesity. Int J Obes (Lond). 2020;44(9):1851–1858; doi: 10.1038/ s41366-020-0590-y.
 
26.
Schoenfeld BJ. The mechanisms of muscle hypertrophy and their application to resistance training. J Strength Cond Res. 2010;24(10):2857–2872. doi: 10.1519/JSC. 0b013e3181e840f3.
 
27.
Damas F, Libardi CA, Ugrinowitsch C. The development of skeletal muscle hypertrophy through resistance training: the role of muscle damage and muscle protein synthesis. Eur J Appl Physiol. 2018;118(3):485–500; doi: 10.1007/s00421-017-3792-9.
 
28.
Rothman KJ. BMI-related errors in the measurement of obesity. Int J Obes. 2008;32(Suppl 3):56–59; doi: 10.1038/ijo.2008.87.
 
29.
Araujo LGM, Sanches M, Turi BC, Monteiro HL. Physical fitness and injuries: 54 weeks of physical training among military police officers. Rev Bras Med Esporte. 2017;23(2):98–102; doi: 10.1590/1517-8692 20172302158877.
 
30.
Taber CB, Vigotsky A, Nuckols G, Haun CT. Exerciseinduced myofibrillar hypertrophy is a contributory cause of gains in muscle strength. Sports Med. 2019; 49(7):993–997; doi: 10.1007/s40279-019-01107-8.
 
31.
Kasper K. Sports training principles. Curr Sports Med Rep. 2019;18(4):95–96; doi: 10.1249/JSR.000000000 0000576.
 
32.
Stone M, Plisk S, Collins D. Strength and conditioning: training principles. Sports Biomech. 2002;1:79–103; doi: 10.1080/14763140208522788.
 
33.
Pollock ML, Wilmore JH. Exercises in Health and Illness: Assessment and Prescription for Rehabilitation [in Portuguese]. Rio de Janeiro: MEDSI; 1993.
 
34.
Sloan RA, Sawada SS, Martin CK, Church T, Blair SN. Associations between cardiorespiratory fitness and health-related quality of life. Health Qual Life Outcomes. 2009;28(7):1–5; doi: 10.1186/1477-7525-7-47.
 
35.
Murias JM, Kowalchuk JM, Paterson DH. Mechanisms for increases in VO2max with endurance training in older and young women. Med Sci Sports Exerc. 2010;42(10):1891–1898; doi: 10.1249/MSS.0b013e31 81dd0bba.
 
36.
Lundby C, Montero D, Joyner M. Biology of VO2max: looking under the physiology lamp. Acta Physiol. 2017; 220(2):218–228; doi: 10.1111/apha.12827.
 
37.
Lenart D. Sports activity as a factor differentiating the level of somatic constitution and physical fitness of officer cadets at the Military Academy of Land Forces. Hum Mov. 2015;16(4):195–199; doi: 10.1515/humo- 2015-0048.
 
38.
Myers J, Kokkinos P, Nyelin E. Physical activity, cardiorespiratory fitness, and the metabolic syndrome. Nutrients. 2019;11(7):1652; doi: 10.3390/nu11071652.
 
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