Physical Fitness Test (PFT) in Police and Military in Brazil: A Systematic Review

Abstract

Background

Physical Fitness Tests (PFTs) are part of military routines and are usually administered to applicants for the Brazilian corps member, including the civil police.

Objective

To identify in the literature, scientific articles aimed at assessing physical fitness of police and military personnel in Brazil, using PFTs.

Methods

This was a systematic review, using the PRISMA systematization, using the following search keywords "police", "military", "physical fitness test" and " PFT", in English and Portuguese. The databases used were ScienceDirect, PubMed, BVS (Lilacs) and Scielo. Only original works performed with police and military personnel in Brazil were selected, through the application of inclusion and exclusion criteria.

Results

After the screening process, 11 articles were selected from a total of 1,487.

Conclusions

The data collected from the selected articles suggest that older age is related to a decrease in physical fitness, and better performance in the tests is related to a lower risk of comorbidities. Although high-intensity training improves physical fitness and anthropometric data, it is associated with injury rates; physically active lifestyle is associated with better flexibility.

Police; Military Personnel; Exercise Test; Brazil

Introduction

The Armed Forces are in charge of guaranteeing of the Brazil State, and their performance is based on the existence of the state, enforcing constitutional norms and principles throughout the territory.¹ The military police act in direct contact with the civilian population and work to protect their lives and freedom based on their rights and duties.² The civil police act in the judicial police branch of the criminal justice system.³

The police and military work require a wide range of physical abilities, and basic physical fitness must be displayed by all staff members.⁴ , ⁵ In this context, the assessment of physical abilities, by means of Physical Fitness Tests (PFTs), is routinely performed among the military personnel, and is also part of the tests for entry into the corps including the civil police.⁶ , ⁷

However, although PFT may be present in military routines and is usually administered to eligible applicants, periodic follow-up examinations are not common. In this sense, studies aimed at clarifying the purposes and applicability of PFTs and contributing to develop standardized protocols seem necessary .

The main objective of this study was to identify in the literature, scientific articles published from inception until May 17, 2020, related to physical fitness tests applied among the police and military personnel in Brazil. The secondary objective was to present the main results and conclusions obtained from the selected articles and discuss the purposes of the PFTs. This article sought to answer the following guiding questions: 1) What are the most commonly used tests? 2) What did the authors conclude from the results? 3) When available, how were anthropometric parameters assessed, and how did they affect the results?

Methods

This study was approved by PROSPERO (identification code CRD42020186880). First, a search was conducted in the ScienceDirect, PubMed, BVL (Lilacs) and Scielo databases to identify articles on the topic. The first phase of the search conducted on May 17, 2020, and considered all articles published up to that date. The keywords, in Portuguese and in English, used for the search, are listed in Table 1 .

Table 1
– Search terms and databases used in review

Keywords by database
ScienceDirect; PubMed; Scielo; BVS (Lilacs)
(( police ) or ( military )) and ( fitness test ) and not ( review )
Scielo; BVS (Lilacs)
((polícia) or (militar)) and ((teste de aptidão física) or (taf)) and not (revisão)

Source: Author.

The following resources were used in the databases: “ Research Articles ” in ScienceDirect; “ Clinical Trial ” and “ Randomized Controlled Trial ” in PubMed; “Aptidão física”, “Militares” and “Polícia” in BVS (Lilacs); “ Health Sciences ” and “ Biological Sciences ” in Scielo.

Data of articles retrieved from the search were exported to the EndNote^® program. The systematic review was made using the PRISMA flow diagram.⁸ In the screening stages, the inclusion and exclusion criteria described in Table 2 were used. The first screening was made based on titles and summary/abstract of the exported citations. The remaining articles were downloaded and included in the EndNote^® program for the second screening, based on full reading of the articles.

Table 2
– Inclusion and exclusion criteria for study selection

Inclusion criteria	Exclusion criteria
• The study sample was composed of police and/or military personnel in Brazil	• Animal experiments
• Studies involving physical fitness tests.	• Studies where physical fitness tests were used to assess patients with diseases or pathological conditions
• Original, complete articles published in scientific journals.	• Studies evaluating the performance of police or military personnel in specific sports or physical exercises
• Only studies with active police and/or military personnel.	• Interventions on nutritional supplementation
	• Review articles, guidelines, and positioning articles

Source: Author.

After the screening phases, a total of seven parameters were extracted from the selected articles – author, year of publication, sample characteristics, methods adopted, tests used, results obtained and main conclusions.

Results

The processes of data acquisition and sorting are shown in a flowchart in Figure 1 . The search for articles in the Portuguese language yielded fewer articles than the search for articles in the English. General results of the search in each database are presented in Figure 1 .

Figure 1
– PRISMA flow chart of screening and selection process

After exporting the data, six citations, specified as “Book Selection”, were excluded. Eleven articles were selected and included in this study; the oldest article published in 2006 and the most recent published in 2020. Table 3 summarizes methodological characteristics, results and main conclusions of each article.

Table 3
– Methodologies, results and conclusions obtained in the selected articles

Author and year	Characteristics of the sample	Experimental desig	Test	Before / G1		After / G2		G3		G4		Statistical significance level	Main conclusions of the study
				Mean	SD/CI	Mean	SD/CI	Mean	SD	Mean	SD	P value / CI 95 %
Araújo et al, 2017(9)	86 students from the Soldier Training Course to join the Military Police (PM) of São Paulo	Comparison of conditions before and after intervention	BMI (Kg/m2)	24	2,6	23,4	2,2	-	-	-	-	0,104	All variables investigated improved.
			1MA	39,6	3,7	47,5	3,9	-	-	-	-	0,001*
			HB	6,3	3,5	8,6	2,9	-	-	-	-	0,001*
		54-week intervention with 2 90-minute training sessions per week	50m	7,2	0,4	6,8	0,3	-	-	-	-	0,001*	The protocol showed a high rate of injuries
			12’R/W (mlkm-1.min-1)	44,9	5,3	53,1	3,6	-	-	-	-	0,001*
			Participants who have suffered from temporary disability injuries during the intervention	61	-	-	-	-	-	-	-	-
Domingos-Gomes et al, 2017(10)	25 BOPE police officers (75.75% of the population) (G1)	Comparison between groups	BMI (Kg/m2)	28,23	3,14	27,3	3,5	-	-	-	-	0.341	Military officers from BOPE showed greater flexibility, being this the only physical fitness with statistically significant differences
			%BF	19,51	4,3	21,45	4,82	-	-	-	-	0.152
			WC (cm)	92,52	7,53	92,89	10,55					0.891
			BW (cm)	29,23	6,95	23,96	8,7	-	-	-	-	0.026*
	22 police officers from BPTRAN (73.33% of the population) (G2)		1MA	38,64	10,25	33,22	12,01					0.103	The length of service affects negatively on morphological fitness, neuromuscular and cardiorespiratory
			Push-ups	23,8	11,42	19,04	14,23	-	-	-	-	0.211
			20meter SR (Km/h)	11,66	1,19	11,2	1,23	-	-	-	-	0.205
			20 meter SR (mlkm-1.min-1)	45,56	7,17	42,82	7,38	-	-	-	-	0.205
Esteves et al, 2014(11)	52 road policemen	Descriptive statistics	BMI (Kg/m2)	28,6	4,8	-	-	-	-	-	-	27,3 - 29,9	Study participants showed inadequate levels of physical condition; overweight; high body adiposity; an important portion, exhibited high blood pressure levels.
			WHR	0,92	0,05	-	-	-	-	-	-	0,91 - 0,93
			WC (cm)	95,4	10,8	-	-	-	-	-	-	92,5 - 98,3
			SBP (mmHg)	128,4	15,9	-	-	-	-	-	-	124,1 - 132,7
			DBP (mmHg)	86,7	12,2	-	-	-	-	-	-	83,4 - 90,0
			%BF	23,6	1,1	-	-	-	-	-	-	22,4 - 24,8
			1MA	28	8	-	-	-	-	-	-	26 - 30
			Pull-ups	21	8	-	-	-	-	-	-	19 - 23
			TEE (mlkm-1.min-1)	34,8	1,1	-	-	-	-	-	-	34,5 - 35,1
Marins et al, 2018(12)	6212 Federal Highway Patrol Officers (national level)	Review of records	1MA	33,5	33,3 – 33,7	30,1	29,3 – 30,9	-	-	-	-	<0,001*	The sample showed good cardiorespiratory fitness and excellent neuromuscular fitness compared to the population reference values.
			Push-ups	28.3	28.1 – 28.6	28.3	25.7 – 27.2	-	-	-	-	<0.001*
	51,1% male (G1)	Descriptive statistics of the 2016 PFT program data	Pull-ups	28,3	28,1 – 28,6	-	-	-	-	-	-	<0.001*	The sample showed a decline in neuromuscular and cardiorespiratory fitness with increasing age
	57,2% female (G2)		12’R/W (mlkm-1.min-1)	38	37,1 – 38,3	30,6	30,6 – 33,1	-	-	-	-	<0.001*
Medeiros et al, 2020(13)	702 PFT data from healthy adults of the Navy Personnel Command of the municipality of Rio de Janeiro between the years 2017-2018	Review of records	BMI (Kg/m2)	25,4	2,9	26,4	4,3	27,5	4	-	-	≤0,001*	Increasing age negatively interferes with the performance of strength, muscle endurance and cardiorespiratory capacity
			1MA	52,5	20,5	52,2	15,1	50,3	11,2	-	-	0,284
	91 Young Adults (20-30 years) (G1)	Comparison of age between the three groups	Pull-ups	10,8	4,6	10	3,6	8,5	4,7	-	-	0,000*
	243 Adults (30-40 years) (G2)		3,200m (s)	1282	172,4	1421	199,8	1567	192	-	-	≤0,001*
	368 Mature Adults (40-50 years old) (G3)		100mST (s)	140,1	45,6	149,7	37,9	180,8	50	-	-	≤0,001*
Oliveira & Anjos, 2008(14)	50,523 (38.6%) Army soldiers, male, healthy and who participated in the 2001 TAF, between November and December.	Review of records	BMI (Kg/m2)	26,2	3,7	24,7	2,8	23,4	2,3	22,3	2	p<0,001*	It was identified in the records that the Military with BMI equal showed ratio of smaller circumference of the abdomen when cardiorespiratory fitness was greater.
	62% of individuals up to 25 years of age		WC (cm)	88,5	9,8	84,2	7,6	80,8	6,5	78,3	6	<0,001*
	G1VO2max ≤ 49 (n=12290) (G1)
	49 < VO2max ≤ 54 (n=13737) (G2)	36 garrisons
	54 < VO2max ≤ 57 (n=13254) (G3)		12’ R/W (mlkm-1.min-1)	44,2	4,4	52,1	1,2	55,7	0,9	60	3	< 0,0001*
	57 < VO2max (n=11242) (G4)
Pereira & Teixeira, 2006(15)	1014 participants, military personnel from the Air Force of a Military Unit in southern Brazil, who had no medical restrictions on the effort.	Descriptive statistics	12’ R/W (m)	2485	322,42	1828,8	182,58	-	-	-	-	-	Participants have regular levels of performance and male soldiers have better physical conditions according to the classification by gender. It is necessary to implement more classifications to encompass other contexts such as age.
	29 female		1MA	40,76	10,3	28,52	11	-	-	-	-	-
			Push-ups	22,03	7,47	25,87	12,15	-	-	-	-	-
	985 male		FT (points)	12,5	2,62	13,62	3,16	-	-	-	-	-
Porto et al, 2016(16)	3822 Military Firefighters of the Federal District Brigade, male, healthy and completed in May 2009	Review of records	BMI (Kg/m2)	26,5	3,2	-	-	-	-	-	-	-	A very high level of agreement was identified between the variables presented in the study; the greater the physical fitness, the lower the percentage of fat and BMI.
	> 50 anos		%BF	15,9	-	-	-	-	-	-	-	-
	BMI ≤ 25 (G1)
	25 < BMI < 29 (G2)		1MA	27,8	4,7	27,4	5,3	25,3	5,7	-	-	< 0.001*
	30 ≤ BMI (G3)		12’R/W (METs)	12,7	1,7	12	1,7	10,4	1,5	-	-	< 0.001*
Rebelo Filho et al, 2012(17)	49 male military police officers	Comparison between tests	BMI (Kg/m2)	23	1,4	-	-	-	-	-	-	-	The 1600 meter test proved to be an efficient and effective alternative in measuring cardiorespiratory capacity; it also demonstrated greater control of the variables that can interfere in the referred measurement.
			12’R/W (mlkm-1.min-1)	39,42	4,18	-	-	-	-	-	-	0,001*
	Test 12min (G1)		1,600m	43,63	3,21	-	-	-	-	-	-	0,001*
	Test 1.600m (G2)		SPE	16,16	1,64	15,24	1,64	-	-	-	-	0,002*
Rodrigues et al, 2020(18)	41 Military male of the Brazilian Army, men, healthy and working in the city of Rio de Janeiro-RJ	Descriptive statistics	BMI (Kg/m2)	29,1	3,54	-	-	-	-	-	-	-	The prevalence of overweight and obesity in the military is related to low levels of physical fitness and the risk of developing chronic diseases.
			LUNAR IDXA (%BF)	29,2	3,36	-	-	-	-	-	-	-
		Evaluation of blood tests	12’ R/W (m)	2670	238,46	-	-	-	-	-	-	-
			Pull-ups	3,8	3,9	-	-	-	-	-	-	-
Teixeira & Pereira, 2010(19)	1,011 healthy, military male from the Air Force of a Military Unit in the south of Brazil.	Descriptive statistics	BMI (Kg/m2)	25,08	3,38	-	-	-	-	-	-	-	Higher age values and worse nutritional status are related to lower physical performance scores. In the localized muscular resistance the biggest losses were found.
			C12’ (mlkm-1.min-1)	46,46	6,68	41,5	6,88	-	-	-	-	<0,001*
			1MA	28,49	13,33	22,78	9,74	-	-	-	-	<0,001*
	BMI normal (G1)		Push-ups	42,92	9,35	38,25	10,8	-	-	-	-	<0,001*
	BMI > normal (G2)		FT (points)	13,27	2,52	11,58	2,45	-	-	-	-	<0,001*

• SD: standard deviation; CI: confidence index; BMI: body mass index; 1MA: One minute sit-ups; HB: Horizontal bar; C50m: 50 meter run; 12’test: 12 minute run/walk; WP: Waist Perimeter; BW: Wells bench; FT: Flexitest; SR: Shuttle Run; % G: Percentage of fat; TST: Treadmill stress test; 3,200m: 3,200 meter run test; 1,600m: 1,600 meter run test; 100mST: 100 meter swimming test; VO2max: Maximum oxygen consumption speed; WHR: waist-to-hip ratio; SBP: systolic pressure; DBP: diastolic pressure; SPE: Subjective perception of exertion. * The level of statistical significance adopted was 5% (p <0.05).

The most reported tests were one-minute sit-ups (1 MA)⁹ - ¹³ , ¹⁵ , ¹⁶ , ¹⁹ and 12-minute run/walk, both in eight articles (72.7%);⁹ , ¹² , ¹⁴ - ¹⁹ followed by push-ups in five articles (45.5%);¹⁰ ,¹¹, ¹² , ¹⁵ , ¹⁹ pull-ups in four articles (36.4%);⁹ , ¹² , ¹³ , ¹⁸ Flexitest (FT) in two articles (18.18%);¹⁵ , ¹⁹ and running tests (3,200m, 1,600m, or 50m),¹³ , ¹⁷ , ⁹ treadmill stress test (TST),¹¹ shuttle run (SR)¹⁰ test, the Wells bench (WB)¹⁰ test, and 100-meter swimming test (100mST)¹³ in one article each (12.5%).

As for the experimental design, five (45.5%)¹¹, ¹² , ¹⁵ , ¹⁸ , ¹⁹ articles with descriptive statistics were identified, four (36.4%)¹² - ¹⁴ , ¹⁶ registry data evaluation, two (18.2%)¹⁰ , ¹³ made comparisons between groups, one (9.1 %)¹⁷ comparison between tests and one (9.1%)⁹ comparisons between conditions before and after intervention, and one articles used more than one of methods.⁹

Nine articles used anthropometric evaluation nine involving measurement of body mass index (BMI) (81.8%)⁹ -¹¹, ¹³ , ¹⁴ , ¹⁶ - ¹⁹ , four %BF (36.6%)¹⁰ ,¹¹, ¹⁶ , ¹⁸ , three waist circumference (WC) (27.3%)¹⁰ ,¹¹, ¹⁴ and one waist-hipratio (9,1%)¹¹. One article reported hemodynamic data on systolic blood pressure (SBP) and diastolic blood pressure (DBP) (9.1%)¹¹; and one evaluated perception of effort (9.1%)¹⁷ , and one article (9.1%)⁹ evaluated injuries during the intervention.

Among the selected articles, in five the deleterious effects of aging sensitive to the performance of the TAF were reported.¹⁰ , ¹² , ¹³ , ¹⁵ , ¹⁹

Discussion

The present study presented studies involving PFTs applied to police and military personnel in Brazil, with no comparisons with data from other countries.

We did not find any article with civilian police officers, possibly because PFTs are not part of the routine of these policemen during their career.

Anthropometric and hemodynamic assessments are performed during the health examination, separate from the PFT. However, anthropometric, and hemodynamic measures may change after completion of the PFT .²⁰ , ²¹

To answer the guiding questions of this study, the selected articles will be discussed starting from the PFTs, followed by a kinesiological analysis, and presentation of the main conclusions drawn from the data collected.

The most reported tests in the selected articles were 1MA and 12-minute walk/run (72.73%). In the 1MA test, the subject lies down on the back, with the knees bent, the soles of the feet resting on the ground, and arms crossed over the chest. Participant’s feet are firmly held down by another person. In the up position, the subject should touch elbows to knee and then return down until their shoulder blades contact the floor. The participant performs as many correct sit ups as possible in 60 seconds.⁹ - ¹³ , ¹⁵ , ¹⁶ , ¹⁹ In the article by Rodrigues et al.¹⁸ the numbers of sit ups were considered inadequate, which was related to high values of BMI. In the article by Esteves et al.¹¹ conditioning was also considered inappropriate, however, BMI was classified as normal, and thus, the relationship between BMI and physical fitness was found. In the other articles, the values of the 1MA test were considered satisfactory. The data suggest that BMI may negatively influence the performance of the 1MA test, but it is not decisive.

In the 12-minute run/walk test, participant lines up behind the starting line. After a command, the watch is started, participants should walk or run, and the longest distance covered in 12 minutes is recorded. Then, estimated VO2 Max results are calculated by specific formulas.⁹ , ¹² , ¹⁴ - ¹⁹ Results of the selected articles suggest that the increase in age, BMI and %BF negatively affect the performance in the 12-minute walk/run test.¹² , ¹⁶ , ¹⁸ Also, individuals with better performance had lower BMI and Waist Perimeter (WP).¹⁴

The 3,200m, 1,600m, 20m ST and TST (9,1%) were also used for cardiac evaluation. In the 50m, 3,200m and 1,600m tests, the time required to cover the distances of 50m, 3,200m and 1,600m, respectively is recorded.⁹ , ¹³ , ¹⁷ The shuttle run test of running back and forth, repeatedly, a distance of 20 meters, controlled by a sound stimulus.¹⁰ TST was performed following a specific protocol, monitored by electrocardiography; the test was performed which made it possible to collect hemodynamic data.¹¹ The VO2max calculations were based on doubly indirect assessments. Despite the methodological differences, these studies supported the statement that cardiorespiratory performance decreases with increasing age.¹⁰ , ¹² , ¹³ , ¹⁵ , ¹⁹

Push-up test was the third most reported (45.5%). Before beginning the push-up movement, participants assume the front-leaning rest position by placing the hands comfortably and feet together. The body should form a straight line from the shoulders to the ankles, with the elbows extended. Push-ups are begun by bending the elbows and lowering the entire body until the upper arms are at least parallel to the ground. Then participants return to the starting position by raising the body until the arms are fully extended. The movement is repeated continuously until failure. For women, the exercise may be adapted by performing the exercise with the knees on the floor (knee push-ups). ¹⁰ - ¹² , ¹⁵ , ¹⁹ In the test, the number of correct repetitions is counted. The activity load is based on body mass, therefore, the anthropometric characteristics interfere with the test performance. A In that test the number of repetitions is counted to compose the test score and higher values represent the performance. As the activity load is based on body mass, anthropometric characteristics influence the test performance. This is corroborated by the study by Esteves et al.,¹¹ who reported inadequate levels of physical condition in highway police officers. In addition, other studies reinforced the negative effect of age on the performance in push-up tests.¹⁰ , ¹² , ¹⁵ , ¹⁹ According to Pereira & Teixeira,¹⁵ there should be an age categorization when applying the test and evaluating performance.

In the pull-up test (36.4%), the participant stands below a pull-up bar and, with elbows fully extended, place their hands in pronation in the bar. Then, participant bends the elbows and raises the upper body up toward the bar until the chin is over the bar. The movement is repeated until failure or until completing 60 seconds. An alternative or adapted version consists of maintaining the elbows at 90º in isometry; higher repetition values represent higher scores or better performance.⁹ , ¹² , ¹³ , ¹⁸ This test aims to assess muscle strength or endurance depending on the level of training and body mass.²² , ²³

The 100mST (9.1%) consists of performing a free swimming test in a 50 meter-pool. Participants start by jumping from a platform, touch the opposite end and swim back to the staring edge. Shorter times indicate better performance.¹³ Medeiros et al.¹³ also reported a decrease in the performance in the 100mST with increasing age.

Two articles used flexibility tests, the WB test and the FT (9.09%). In the BW test, also known as the sit and reach test, participants sit on the floor with the legs stretched out together, and knees extended. With the hands superimposed and palms facing downwards, participants reach forward along the measuring line as far as possible, performing hip and trunk flexion. The participant has three attempts to reaches the maximum distance; greater distances correspond to better performance.¹⁰ The FT is a test that qualitatively evaluates joint amplitudes in five movements – extension with adduction of the shoulder, horizontal adduction of the shoulder, flexion of the trunk, flexion of the hip and the abduction of the hip. The movements are rated from 0 to 4 and provide a global score called Flexindex. According to Domingos-Gomes et al.,¹⁰ flexibility can be influenced by lifestyle, and sedentarism is associated with less flexibility. Although older age can contribute to lower flexibility, it does not appear to be as determinant as in other physical capacities. Higher BMI values are related to lower mobility.¹⁵ , ¹⁹

Araújo et al.,⁹ used a 54-week intervention protocol, including 90 minutes of aerobic, recreational and sports activities, twice a week and during. Results of PFTs and anthropometric assessment showed improvements after the intervention protocol. In that article, a high rate of injuries was also observed during the intervention protocol, which was related to high training intensity.

BMI was the most common anthropometric parameter measured in the studies selected, assessed in nine of the 11 studies included.⁹ -¹¹, ¹³ , ¹⁴ , ¹⁶ - ¹⁹ BMI is suitable for assessing the nutritional status of populations, and widely applied in samples with certain homogeneity.²⁴

The %G can present personalized data of the subjects evaluated. This parameter was assessed in three of the 11 articles included, in 52, 50 and 41 participants. This relatively small number of participants made the individual evaluation viable.¹⁰ ,¹¹, ¹⁸

Subjective perception of exertion (SPE), also known as the Borg Scale, is not a PFTs, but rather a scale-based instrument used to measure an individual’s effort and exertion during physical work. The instrument was used in one article only.¹⁷

Measures involving WC, WHR, SBP and DBP were used to assess the risk of comorbidities.¹⁰ ,¹¹, ¹⁴ Esteves et al.¹¹ identified, in a sample of highway police officers, low performance in PFTs and worrying data regarding these measurements. Results of the selected articles suggest that better results in PFTs are related to better values of WC, WHR, SBP and DBP, i.e ., lower risk of comorbidities.

It is important to note that this review study had some limitations in its construction, such as the scarcity of articles on the developed theme, as well as the great heterogeneity regarding the protocols applied in the PFTs of the selected studies. Thus, it is evident that there is no standard protocol to be followed in PFT applied to military personnel in Brazil.

Conclusion

The present study brought to light studies involving PFTs in police and military personnel in Brazil. The most used tests were 1MA, the 12-minute run walk test, push-ups, pull-ups, the FT, running tests (3,200m, 1,600m, and 50m), TST, SR test, WB test, and 100mST. The tests aimed at assessing cardiorespiratory fitness, strength, muscular endurance, flexibility, running speed and swimming speed. No articles with civil police officers were found, but only with military police officers. Age and length of service were related to decreased physical fitness, whereas better performance in PFTs were related to decreased risk of comorbidities. Training protocols involving high intensity may be related to significant improvements in PFTs and anthropometric data, however, they can generate high injury rates. More physically active lifestyle can be related to greater flexibility. Further studies involving PFTs with military personnel should be carried out, especially clinical trials, to determine which tests are the most suitable to assess and measure the various physical capacities involved in military service, and allow the development of a single, standardized PFT protocol to assess this population in the various military forces in Brazil.

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• Study Association
  This study is not associated with any thesis or dissertation work.
• Ethics approval and consent to participate
  This article does not contain any studies with human participants or animals performed by any of the authors.

• Sources of Funding: There were no external funding sources for this study.

Publication Dates

• Publication in this collection
  13 Dec 2021
• Date of issue
  Mar-Apr 2022

History

• Received
  17 Sept 2020
• Reviewed
  19 Jan 2021
• Accepted
  18 May 2021