A simplified model to predict stress fracture in young elite combat recruits.

Abstract:

:The purpose of the study was to develop a simple prediction model for stress fractures (SFs) in young male recruits to identify risk factors for SF. Data were collected from 57 young (18.5 ± 0.5 years) male athletes before elite combat basic training (BT). Measurements included anthropometric variables, blood samples, fitness tests, bone quality (peripheral quantitative computed tomography [pQCT]), psychological assessment, nutritional habits, and history of physical activity. A medical evaluation was done periodically. The SFs were clinically diagnosed during the 1-year training and thereafter confirmed by bone scintigraphy. Three "simple to monitor" variables were found to be significantly (p < 0.05) related to SF occurrence during basic and advanced training: aerobic training frequency, aerobic training duration, and waist circumference. From these 3 variables, a new model was constructed that successfully predicted 85% of the soldiers with (n = 23) and without (n = 34) SF as follows:(Equation is included in full-text article.)where PSF is the stress fracture prediction according to the Log Odds (SF), Odds(SF) is the ratio between the probability of SF existence and nonexistence, ATn is the aerobic training (times per week), ATt is the aerobic training duration (minutes per week), and waist is the circumference (centimeters). This model was validated on a different database taken from another 59 elite combat recruits before BT and successfully predicted 76.5% of the soldiers with SF (n = 22) and without SF (n = 37). A young male recruit for elite combat unit is at a greater risk of developing SF if, before entering BT, he trained aerobically <2 times per week with each training >40 minutes and has a waist circumference of <75 cm. However, further evaluation is required for different combat recruits, ages, and training programs to validate these results.

journal_name

J Strength Cond Res

authors

Moran DS,Finestone AS,Arbel Y,Shabshin N,Laor A

doi

10.1519/JSC.0b013e31823f2733

subject

Has Abstract

pub_date

2012-09-01 00:00:00

pages

2585-92

issue

9

eissn

1064-8011

issn

1533-4287

journal_volume

26

pub_type

杂志文章
  • Kinetic Contributions of The Upper Limbs During Counter-Movement Verical Jumps With and Without Arm Swing.

    abstract::Mosier, EM, Fry, AC, and Lane, MT. Kinetic contributions of the upper limbs during countermovement. J Strength Cond Res 33(8): 2066-2073, 2019-This study examined the kinetic contributions of the upper extremities during countermovement vertical jumps (CMVJs) while using arm swing (AS) or no arm swing (NAS) conditions...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000002275

    authors: Mosier EM,Fry AC,Lane MT

    更新日期:2019-08-01 00:00:00

  • The relationships between local muscular endurance and kinematic changes during a run to exhaustion at vVO2max.

    abstract::The relationships between local muscular endurance and kinematic changes during a run to exhaustion at vVo2max. J Strength Cond. Res. 18(4):000-000. 2004.-A recent study suggested that runners who maintain a stable running style are able to run for longer at vVo2max velocity (vVo2max). This may be because of the capac...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/r-13503.1

    authors: Hayes PR,Bowen SJ,Davies EJ

    更新日期:2004-11-01 00:00:00

  • Load-Power Relationship During a Countermovement Jump: A Joint Level Analysis.

    abstract::Williams, KJ, Chapman, DW, Phillips, EJ, and Ball, N. Load-power relationship during a countermovement jump: A joint level analysis. J Strength Cond Res 32(4): 955-961, 2018-This study aimed to investigate whether hip, knee, and ankle peak power is influenced by the relative load lifted, altering the joint and system ...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000002432

    authors: Williams KJ,Chapman DW,Phillips EJ,Ball NB

    更新日期:2018-04-01 00:00:00

  • Match-play activity profile in elite women's rugby union players.

    abstract::The aim of this study was to provide an objective description of the locomotive activities and exercise intensity undergone during the course of an international-level match of female rugby union. Eight players were analyzed using global positioning system tracking technology. The total distance covered by the players...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e3182999e2b

    authors: Suarez-Arrones L,Portillo J,Pareja-Blanco F,Sáez de Villareal E,Sánchez-Medina L,Munguía-Izquierdo D

    更新日期:2014-02-01 00:00:00

  • A Retrospective Analysis of the National Youth Teams in Volleyball: Were They Always Faster, Taller, and Stronger?

    abstract::Mireille, M, Johan, P, Matthieu, L, and Pieter, V. A retrospective analysis of the national youth teams in volleyball: Were they always faster, taller, and stronger? J Strength Cond Res XX(X): 000-000, 2020-Although there are numerous studies comparing the characteristics of young and adult volleyball players of diffe...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003847

    authors: Mostaert M,Pion J,Lenoir M,Vansteenkiste P

    更新日期:2020-10-09 00:00:00

  • Post Activation Potentiation and Concentric Contraction Performance: Effects on Rate of Torque Development, Neuromuscular Efficiency, and Tensile Properties.

    abstract::Gago, P, Zoellner, A, Cezar, J, and Ekblom, MM. Post activation potentiation and concentric contraction performance: effects on rate of torque development, neuromuscular efficiency and tensile properties. J Strength Cond Res 34(6): 1600-1608, 2020-This study investigated how a 6-second maximal voluntary isometric cont...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000002427

    authors: Gago P,Zoellner A,Cézar Lima da Silva J,Ekblom MM

    更新日期:2020-06-01 00:00:00

  • Lactate threshold and performance adaptations to 4 weeks of training in untrained swimmers: volume vs. intensity.

    abstract::The purpose of this study was to investigate the impact of 4 weeks of high-intensity vs. high-volume swim training on lactate threshold (LT) characteristics and performance. Thirteen untrained swimmers with a mean age of 19.0 ± 0.5 undertook an incremental swimming test before and after 4 weeks of training for the det...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e31821eb7bd

    authors: Soultanakis HN,Mandaloufas MF,Platanou TI

    更新日期:2012-01-01 00:00:00

  • Reliability of performance velocity for jump squats under feedback and nonfeedback conditions.

    abstract::Randell, AD, Cronin, JB, Keogh, JWL, Gill, ND, and Pedersen, MC. Reliability of performance velocity for jump squats under feedback and nonfeedback conditions. J Strength Cond Res 25(12): 3514-3518, 2011-Advancements in the monitoring of kinematic and kinetic variables during resistance training have resulted in the a...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e318216001f

    authors: Randell AD,Cronin JB,Keogh JW,Gill ND,Pedersen MC

    更新日期:2011-12-01 00:00:00

  • Repeated sprint and change-of-direction abilities in soccer players: effects of age group.

    abstract::The purpose of the present study was to compare the performance in repeated sprint ability (RSA) and repeated changes-of-direction (RCOD) among elite soccer players with different age categories. Forty-nine elite soccer players from the same club and from different age categories (Pro2: n = 8, U19: n = 18, U17: n = 13...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e31827f540c

    authors: Dellal A,Wong del P

    更新日期:2013-09-01 00:00:00

  • Effects of carbohydrate supplementation on force output and time to exhaustion during static leg contractions superimposed with electromyostimulation.

    abstract::The purpose of this study was to investigate the effects of carbohydrate ingestion on force output and time to exhaustion using single leg static contractions superimposed with brief periods of electromyostimulation. Six trained male subjects participated in a randomized, counterbalanced, double-blind study. The subje...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0b013e318234ec0e

    authors: Wax B,Brown SP,Webb HE,Kavazis AN

    更新日期:2012-06-01 00:00:00

  • Landing Impact Intensities for Jumping Exercises From the OPTIMA-Ex Trial in Trained and Untrained Women.

    abstract::Lambert, C, Beck, BR, and Weeks, BK. Landing impact intensities for jumping exercises from the OPTIMA-Ex trial in trained and untrained women. J Strength Cond Res XX(X): 000-000, 2019-High-intensity mechanical loads are required to elicit a positive adaptive bone response. Our aim was to quantify the mechanical loads ...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003204

    authors: Lambert C,Beck BR,Weeks BK

    更新日期:2019-08-08 00:00:00

  • Reliability and factorial validity of squat and countermovement jump tests.

    abstract::The primary aim of this study was to determine reliability and factorial validity of squat (SJ) and countermovement jump (CMJ) tests. The secondary aim was to compare 3 popular methods for the estimation of vertical jumping height. Physical education students (n = 93) performed 7 explosive power tests: 5 different ver...

    journal_title:Journal of strength and conditioning research

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1519/1533-4287(2004)18<551:RAFVOS>2.0.CO;2

    authors: Markovic G,Dizdar D,Jukic I,Cardinale M

    更新日期:2004-08-01 00:00:00

  • Effects of Cluster Set Configuration on Mechanical Performance and Neuromuscular Activity.

    abstract:ABSTRACT:Ortega-Becerra, M, Sánchez-Moreno, M, and Pareja-Blanco, F. Effects of cluster set configuration on mechanical performance and neuromuscular activity. J Strength Cond Res 35(2): 310-317, 2021-The aim of this study was to compare the effects of different cluster set (CS) configurations on mechanical performance...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003907

    authors: Ortega-Becerra M,Sánchez-Moreno M,Pareja-Blanco F

    更新日期:2021-02-01 00:00:00

  • Estimation of oxygen uptake from heart rate and ratings of perceived exertion in young soccer players.

    abstract::The objective of this study was to estimate the oxygen uptake (&OV0312;O2) in elite youth soccer players using measures of heart rate (HR) and ratings of perceived exertion (RPEs). Forty-six regional-level male youth soccer players (∼13 years) participated in 2 VO(2)max tests. Data for HR, RPE, and VO(2) were simultan...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e3181e4ffe6

    authors: Wong del P,Carling C,Chaouachi A,Dellal A,Castagna C,Chamari K,Behm DG

    更新日期:2011-07-01 00:00:00

  • Do hockey players need aerobic fitness? Relation between VO2max and fatigue during high-intensity intermittent ice skating.

    abstract::The primary objective of this study was to assess the relationship between aerobic capacity, as measured by the VO(2)max test, and recovery from high-intensity intermittent exercise. Eleven female collegiate hockey players agreed to participate. Subjects skated 5 1-lap intervals around the hockey rink at maximal inten...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/R-18881.1

    authors: Carey DG,Drake MM,Pliego GJ,Raymond RL

    更新日期:2007-08-01 00:00:00

  • Acute effects of Flexi-bar vs. Sham-bar exercise on muscle electromyography activity and performance.

    abstract::This study was conducted to investigate whether the low-frequency (5-Hz) oscillatory vibration-like stimulus, purported to be delivered by exercising with Flexi-bar, acutely affects muscle activation and maximal voluntary contraction (MVC) force. Nine healthy men participated in 2 trials, separated by at least 1 week,...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0b013e3181c7c2d8

    authors: Mileva KN,Kadr M,Amin N,Bowtell JL

    更新日期:2010-03-01 00:00:00

  • The influence of resting period length on jumping performance.

    abstract::The purpose of this study was to determine a resting interval between countermovement jumps (i.e., volleyball spikes) that allows the maintenance of maximal jumping performance. Ten male volleyball players (1.85 +/- 0.05 m, 77.2 +/- 10.6 kg, 21.6 +/- 5.3 years) performed 6 experimental jumping sessions. In the first a...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e318173932a

    authors: Pereira G,Almeida AG,Rodacki AL,Ugrinowitsch C,Fowler NE,Kokubun E

    更新日期:2008-07-01 00:00:00

  • Effects of resisted sprint training on acceleration with three different loads accounting for 5, 12.5, and 20% of body mass.

    abstract::The optimal resisted load for sprint training has not been established yet, although it has been suggested that a resistance reducing the athlete's velocity by more than 10% from unloaded sprinting would entail substantial changes in the athlete's sprinting mechanics. This investigation has evaluated the effects of a ...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0000000000000492

    authors: Bachero-Mena B,González-Badillo JJ

    更新日期:2014-10-01 00:00:00

  • Strength-Power Tests are More Effective When Performed After Exhaustive Exercise in Discrimination Between Top-Elite and Elite Wrestlers.

    abstract::Özbay, S and Ulupinar, S. Strength-power tests are more effective when performed after exhaustive exercise in discrimination between top-elite and elite wrestlers. J Strength Cond Res XX(X): 000-000, 2019-This study aimed (a) to analyze strength-power variables in top-elite and elite wrestlers, (b) to identify which v...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003456

    authors: Özbay S,Ulupınar S

    更新日期:2020-01-03 00:00:00

  • Specific Adaptations in Performance and Muscle Architecture After Weighted Jump-Squat vs. Body Mass Squat Jump Training in Recreational Soccer Players.

    abstract::Coratella, G, Beato, M, Milanese, C, Longo, S, Limonta, E, Rampichini, S, Cè, E, Bisconti, AV, Schena, F, and Esposito, F. Specific adaptations in performance and muscle architecture after weighted jump-squat vs. body mass squat jump training in recreational soccer players. J Strength Cond Res 32(4): 921-929, 2018-The...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0000000000002463

    authors: Coratella G,Beato M,Milanese C,Longo S,Limonta E,Rampichini S,Cè E,Bisconti AV,Schena F,Esposito F

    更新日期:2018-04-01 00:00:00

  • The metabolic costs of reciprocal supersets vs. traditional resistance exercise in young recreationally active adults.

    abstract::An acute bout of traditional resistance training (TRAD) increases energy expenditure (EE) both during exercise and in the postexercise period. Reciprocal supersets (SUPERs) are a method of resistance training that alternates multiple sets of high-intensity agonist-antagonist muscle groups with limited recovery. The pu...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e3181d3e993

    authors: Kelleher AR,Hackney KJ,Fairchild TJ,Keslacy S,Ploutz-Snyder LL

    更新日期:2010-04-01 00:00:00

  • Acute effects of self-myofascial release using a foam roller on arterial function.

    abstract::Flexibility is associated with arterial distensibility. Many individuals involved in sport, exercise, and/or fitness perform self-myofascial release (SMR) using a foam roller, which restores muscles, tendons, ligaments, fascia, and/or soft-tissue extensibility. However, the effect of SMR on arterial stiffness and vasc...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0b013e31829480f5

    authors: Okamoto T,Masuhara M,Ikuta K

    更新日期:2014-01-01 00:00:00

  • Static stretching and performance in multiple sets in the bench press exercise.

    abstract::The purpose of this study was to analyze the acute effect of static stretching on the performance of multiple sets in the bench press (BP) exercise. Fifteen men (26.2 ± 0.7 years, 72.4 ± 1.3 kg, 1.78 ± 0.1 m, 22.8 ± 0.3 kg·m) performed 4 sets of the BP exercise at 80% of 1 repetition maximum until concentric failure, ...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000000257

    authors: Ribeiro AS,Romanzini M,Dias DF,Ohara D,da Silva DR,Achour A Jr,Avelar A,Cyrino ES

    更新日期:2014-04-01 00:00:00

  • Alpha-Actinin-3 R577X Polymorphism Influences Muscle Damage and Hormonal Responses After a Soccer Game.

    abstract::Coelho, DB, Pimenta, EM, Rosse, IC, Veneroso, C, Pussieldi, GDA, Becker, LK, De Oliveira, EC, Carvalho, MRS, and Silami-Garcia, E. Alpha-actinin-3 R577X polymorphism influences muscle damage and hormonal responses after a soccer game. J Strength Cond Res 33(10): 2655-2664, 2019-The purpose of this study was to evaluat...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000002575

    authors: Coelho DB,Pimenta EM,Rosse IC,Veneroso C,Pussieldi GA,Becker LK,Oliveira EC,Carvalho MRS,Silami-Garcia E

    更新日期:2019-10-01 00:00:00

  • A survey of the scientific data and training methods utilized by collegiate strength and conditioning coaches.

    abstract::The purpose of this study was to determine the extent to which scientific research influences college strength and conditioning coaching practices and to determine the training methods utilized. A total of 321 surveys were mailed to Division I strength and conditioning coaches, and the response rate was 42.7% (137 of ...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/1533-4287(2003)017<0368:asotsd>2.0.co;2

    authors: Durell DL,Pujol TJ,Barnes JT

    更新日期:2003-05-01 00:00:00

  • Acute effects of dynamic stretching exercise on power output during concentric dynamic constant external resistance leg extension.

    abstract::The purpose of the present study was to clarify the acute effect of dynamic stretching exercise on muscular performance during concentric dynamic constant external resistance (DCER, formally called isotonic) muscle actions under various loads. Concentric DCER leg extension power outputs were measured in 12 healthy mal...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/R-21366.1

    authors: Yamaguchi T,Ishii K,Yamanaka M,Yasuda K

    更新日期:2007-11-01 00:00:00

  • Effects of Combined Resistance Training and Weightlifting on Injury Risk Factors and Resistance Training Skill of Adolescent Males.

    abstract::Pichardo, AW, Oliver, JL, Harrison, CB, Maulder, PS, Lloyd, RS, and Kandoi, R. Effects of combined resistance training and weightlifting on injury risk factors and resistance training skill of adolescent males. J Strength Cond Res XX(X): 000-000, 2019-The purpose of this study was to investigate the effects of resista...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003341

    authors: Pichardo AW,Oliver JL,Harrison CB,Maulder PS,Lloyd RS,Kandoi R

    更新日期:2019-08-23 00:00:00

  • Panax ginseng Supplementation Increases Muscle Recruitment, Attenuates Perceived Effort, and Accelerates Muscle Force Recovery After an Eccentric-Based Exercise in Athletes.

    abstract::Cristina-Souza, G, Santos-Mariano, AC, Lima-Silva, AE, Costa, PL, Domingos, PR, Silva, SF, Abreu, WC, De-Oliveira, FR, and Osiecki, R. Panax Ginseng supplementation increases muscle recruitment, attenuates perceived effort, and accelerates muscle force recovery after an eccentric-based exercise in athletes. J Strength...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0000000000003555

    authors: Cristina-Souza G,Santos-Mariano AC,Lima-Silva AE,Costa PL,Domingos PR,Silva SF,Abreu WC,De-Oliveira FR,Osiecki R

    更新日期:2020-04-29 00:00:00

  • The Effect of 2 Weeks of Inactivated Probiotic Bacillus coagulans on Endocrine, Inflammatory, and Performance Responses During Self-Defense Training in Soldiers.

    abstract::Hoffman, JR, Hoffman, MW, Zelicha, H, Gepner, Y, Willoughby, DS, Feinstein, U, and Ostfeld, I. The Effect of 2-Weeks of Inactivated Probiotic Bacillus coagulans on Endocrine, Inflammatory and Performance Responses During Self-Defense Training in Soldiers. J Strength Cond Res 33(9): 2330-2337, 2019-The effect of 2 week...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章,随机对照试验

    doi:10.1519/JSC.0000000000003265

    authors: Hoffman JR,Hoffman MW,Zelicha H,Gepner Y,Willoughby DS,Feinstein U,Ostfeld I

    更新日期:2019-09-01 00:00:00

  • Evaluating sprinting ability, density of acceleration, and speed dribbling ability of professional soccer players with respect to their positions.

    abstract::The aim of this study is to evaluate sprinting ability, density of acceleration, and speed dribbling ability of professional soccer players with respect to their positions.A total of 243 professional soccer players were examined. These soccer players are playing in different leagues of Turkey. The F-MARC test battery,...

    journal_title:Journal of strength and conditioning research

    pub_type: 杂志文章

    doi:10.1519/JSC.0b013e318181fd90

    authors: Taskin H

    更新日期:2008-09-01 00:00:00