Physical Training, Fitness, and Injuries: Lessons Learned From Military Studies.

abstract：ABSTRACT:Merrigan, JJ and Martin, JR. Is the OUTPUT sports unit reliable and valid when estimating back squat and bench press concentric velocity? J Strength Cond Res XX(X): 000-000, 2020-This study evaluated the reliability and concurrent validity of the OUTPUT sports inertial unit to measure concentric velocity of fr...

journal_title：Journal of strength and conditioning research

authors： Merrigan JJ,Martin JR

更新日期：2020-12-16 00:00:00

abstract：:Ground reaction forces are important in pitching given that the only external contact a pitcher has is between the foot and the ground. Windmill softball pitchers are routinely seen clinically for injuries to the lower extremities, and lower-extremity kinetics have not been well studied. The purpose of this study was ...

journal_title：Journal of strength and conditioning research

authors： Guido JA Jr,Werner SL,Meister K

更新日期：2009-09-01 00:00:00

abstract：:According to the spring mass model, leg stiffness (characterized by the measure of kleg) behavior is theoretically dependent on lower limb joint and trunk stiffness. Yet, the influence of the trunk as a possible regulator of kleg is unknown. This study investigated the influence of abdominal training on kleg during ho...

journal_title：Journal of strength and conditioning research

authors： Dupeyron A,Hertzog M,Micallef JP,Perrey S

更新日期：2013-08-01 00:00:00

abstract：:Alves, RR, Viana, RB, Silva, MH, Guimarães, TC, Vieira, CA, Santos, DdAT, and Gentil, PRV. Postactivation potentiation improves performance in a resistance training session in trained men. J Strength Cond Res XX(X): 000-000, 2019-This study aims to analyze the influence of postactivation potentiation (PAP) on performa...

journal_title：Journal of strength and conditioning research

authors： Alves RR,Viana RB,Silva MH,Guimarães TC,Vieira CA,Santos DAT,Gentil PRV

更新日期：2019-09-25 00:00:00

abstract：:This cross-sectional study investigated the effects of participation in various sports on side-to-side (contralateral) differences in bone mineral density (BMD) of the upper and lower limbs. The BMD of the arms and legs was measured using dual energy X-ray absorptiometry. The subjects were 184 collegiate athletes, bot...

journal_title：Journal of strength and conditioning research

authors： McClanahan BS,Harmon-Clayton K,Ward KD,Klesges RC,Vukadinovich CM,Cantler ED

更新日期：2002-11-01 00:00:00

abstract：:Reliability, the consistency of a test or measurement, is frequently quantified in the movement sciences literature. A common metric is the intraclass correlation coefficient (ICC). In addition, the SEM, which can be calculated from the ICC, is also frequently reported in reliability studies. However, there are severa...

journal_title：Journal of strength and conditioning research

authors： Weir JP

更新日期：2005-02-01 00:00:00

abstract：:Mattes, K, Wollesen, B, and Manzer, S. Asymmetries of maximum trunk, hand, and leg strength in comparison to volleyball and fitness athletes. J Strength Cond Res 32(1): 57-65, 2018-Playing volleyball and corresponding training loads lead to specific strains and might result in asymmetric muscle pattern. The study aime...

journal_title：Journal of strength and conditioning research

authors： Mattes K,Wollesen B,Manzer S

更新日期：2018-01-01 00:00:00

abstract：:Anaerobic exercise is involved in many recreational and competitive sport activities. This study first established regression equations to predict maximal anaerobic power and then cross-validated these prediction equations. Using stepwise multiple regression analysis prediction equations for relative (watts per kilogr...

journal_title：Journal of strength and conditioning research

authors： Mastrangelo MA,Chaloupka EC,Kang J,Lacke CJ,Angelucci J,Martz WP,Biren GB

更新日期：2004-02-01 00:00:00

abstract：:The purpose of the present investigation was to describe the physiological profile of elite Iranian junior freestyle wrestlers. Seventy elite wrestlers (age 19.8 +/- 0.9 years) who were invited to the national training camps, based on their top 10 national ranking, participated in this study. The physiological profile...

journal_title：Journal of strength and conditioning research

authors： Mirzaei B,Curby DG,Rahmani-Nia F,Moghadasi M

更新日期：2009-11-01 00:00:00

abstract：:The objective of this study was to investigate the potential variations in cardiorespiratory and metabolic parameters and running performance among 3 modes of exercise of the same duration, namely, intermittent running with active recovery (AR) or passive recovery (PR) and continuous running (CR) and whether these var...

journal_title：Journal of strength and conditioning research

authors： Mandroukas A,Heller J,Metaxas TI,Sendelides T,Riganas C,Vamvakoudis E,Christoulas K,Stefanidis P,Karagiannis V,Kyparos A,Mandroukas K

更新日期：2011-06-01 00:00:00

abstract：:Biomarkers of inflammation, muscle damage, and oxidative stress after high-intensity exercise have been described previously; however, further understanding of their role in the postexercise recovery period is necessary. Because these markers have been implicated in cell signaling, they may be specifically related to ...

journal_title：Journal of strength and conditioning research

authors： Bessa AL,Oliveira VN,Agostini GG,Oliveira RJ,Oliveira AC,White GE,Wells GD,Teixeira DN,Espindola FS

更新日期：2016-02-01 00:00:00

abstract：:The aim of this study was to investigate whether supplementing regular preseason futsal training with weekly sessions of repeated sprints (RS) training would have positive effects on repeated sprint ability (RSA) and field test performance. Thirteen players from a professional futsal team (22.6 ± 6.7 years, 72.8 ± 8.7...

journal_title：Journal of strength and conditioning research

authors： Soares-Caldeira LF,de Souza EA,de Freitas VH,de Moraes SM,Leicht AS,Nakamura FY

更新日期：2014-10-01 00:00:00

abstract：:Exercise or Swiss balls are increasingly being used with conventional resistance exercises. There is little evidence supporting the efficacy of this approach compared to traditional resistance training on a stable surface. Previous studies have shown that force output may be reduced with no change in muscle electromyo...

journal_title：Journal of strength and conditioning research

authors： Goodman CA,Pearce AJ,Nicholes CJ,Gatt BM,Fairweather IH

更新日期：2008-01-01 00:00:00

abstract：:Currently, a submaximal protocol is used to measure cardiorespiratory fitness in firefighters by estimating their true aerobic capacity (V[Combining Dot Above]O2max); however, this submaximal test has not been cross-validated among firefighters. Thirty firefighters (85% male, 15% female), completed the submaximal prot...

journal_title：Journal of strength and conditioning research

authors： Delisle AT,Piazza-Gardner AK,Cowen TL,Huq MB,Delisle AD,Stopka CB,Tillman MD

更新日期：2014-10-01 00:00:00

abstract：:Nakamura, FY, Pereira, LA, Loturco, I, Rosseti, M, Moura, FA, and Bradley, PS. Repeated-sprint sequences during female soccer matches using fixed and individual speed thresholds. J Strength Cond Res 31(7): 1802-1810, 2017-The main objective of this study was to characterize the occurrence of single sprint and repeated...

journal_title：Journal of strength and conditioning research

authors： Nakamura FY,Pereira LA,Loturco I,Rosseti M,Moura FA,Bradley PS

更新日期：2017-07-01 00:00:00

abstract：:This study investigated physiological and performance aspects of 15 (4 women and 11 men) elite Taekwondo athletes (24.0 ± 5.7 years) during their National Championship. The load of the competition was evaluated by means of heart rate (HR) and blood lactate (La). Pre and postmatch countermovement jump (CMJ), and handgr...

journal_title：Journal of strength and conditioning research

authors： Chiodo S,Tessitore A,Cortis C,Lupo C,Ammendolia A,Iona T,Capranica L

更新日期：2011-02-01 00:00:00

abstract：:Abnormal movement patterns have been identified as important prospective risk factors for lower extremity injury, including anterior cruciate ligament injury. Specifically, poor neuromuscular control during the early landing phase has been associated with increased injury risk. Although it is commonly assumed that hig...

journal_title：Journal of strength and conditioning research

authors： Theiss JL,Gerber JP,Cameron KL,Beutler AI,Marshall SW,Distefano LJ,Padua DA,de la Motte SJ,Miller JM,Yunker CA

更新日期：2014-04-01 00:00:00

abstract：:The aim of this study was to analyze the effects of 3 different low/moderate load strength training methods (full-back squat [SQ], resisted sprint with sled towing [RS], and plyometric and specific drills training [PLYO]) on sprinting, jumping, and change of direction (COD) abilities in soccer players. Thirty-two youn...

journal_title：Journal of strength and conditioning research

authors： de Hoyo M,Gonzalo-Skok O,Sañudo B,Carrascal C,Plaza-Armas JR,Camacho-Candil F,Otero-Esquina C

更新日期：2016-02-01 00:00:00

abstract：:Practitioners training the older adult may benefit from a low-cost, easy-to-administer field test of upper body power. This study evaluated validity and reliability of the seated medicine ball throw (SMBT) in older adults. Subjects (n = 33; age 72.4 ± 5.2 years) completed 6 trials of an SMBT in each of 2 testing days ...

journal_title：Journal of strength and conditioning research

authors： Harris C,Wattles AP,DeBeliso M,Sevene-Adams PG,Berning JM,Adams KJ

更新日期：2011-08-01 00:00:00

abstract：:Amarante do Nascimento, M, Nunes, JPA, Pina, FLC, Ribeiro, AS, Carneiro, NH, Venturini, D, Barbosa, DS, Mayhew, JL, and Cyrino, ES. Comparison of 2 weekly frequencies of resistance training on muscular strength, body composition, and metabolic biomarkers in resistance-trained older women: Effects of detraining and ret...

journal_title：Journal of strength and conditioning research

authors： Amarante do Nascimento M,Nunes JP,Pina FLC,Ribeiro AS,Carneiro NH,Venturini D,Barbosa DS,Mayhew JL,Cyrino ES

更新日期：2020-08-27 00:00:00

abstract：:The active manual straight leg raise (ASLR) and passive manual straight leg raise (MSLR) tests are commonly used in clinical settings to assess hamstring tightness. However, to our knowledge, the validity and sensitivity of these tests have not been compared with the instrumental straight leg raise (ISLR). The aim of ...

journal_title：Journal of strength and conditioning research

authors： Ylinen JJ,Kautiainen HJ,Häkkinen AH

更新日期：2010-04-01 00:00:00

abstract：:Suitability for safe participation in aerobic exercise is typically determined by a cardiopulmonary exercise test, using a treadmill or cycle. With increased participation in strength training by healthy clients as well as rehabilitation patients, there is a need to develop a test for determining suitability for safe ...

journal_title：Journal of strength and conditioning research

authors： Swank AM,Funk DC,Manire JT,DeGruccio LA,Dimitriadis CK,Denny DM

更新日期：2005-05-01 00:00:00

abstract：:This study examined the physical and decision-making requirements of elite Australian football (AF) umpires during match play. Twenty-nine field umpires were assessed across 20 AF League matches. Physical demands were monitored using global positioning system devices to record the total distance covered and high-speed...

journal_title：Journal of strength and conditioning research

authors： Elsworthy N,Burke D,Scott BR,Stevens CJ,Dascombe BJ

更新日期：2014-12-01 00:00:00

abstract：:The purpose of this study was to compare shoulder range-of-motion (ROM) and strength values between bodybuilders and nonbodybuilders. Fifty-four men (29 bodybuilders and 25 nonbodybuilders) between the ages of 21 and 34 years participated in the study. Goniometric measurements were used to assess shoulder flexion and ...

journal_title：Journal of strength and conditioning research

authors： Barlow JC,Benjamin BW,Birt P,Hughes CJ

更新日期：2002-08-01 00:00:00

abstract：:Collins, KS, Coburn, JW, Galpin, AJ, and Lockie, RG. Relationships and reliability between a drive block test and traditional football performance tests in high school offensive line players. J Strength Cond Res 32(12): 3432-3441, 2018-The offensive line (OL) is a specialized football position responsible for blocking...

journal_title：Journal of strength and conditioning research

authors： Collins KS,Coburn JW,Galpin AJ,Lockie RG

更新日期：2018-12-01 00:00:00

abstract：:Kyröläinen, H, Hackney, AC, Salminen, R, Repola, J, Häkkinen, K, and Haimi, J. Effects of combined strength and endurance training on physical performance and biomarkers of healthy young women. J Strength Cond Res 32(6): 1554-1561, 2018-Cardiovascular fitness has decreased and obesity has increased in young adults wor...

journal_title：Journal of strength and conditioning research

authors： Kyröläinen H,Hackney AC,Salminen R,Repola J,Häkkinen K,Haimi J

更新日期：2018-06-01 00:00:00

abstract：:The aim of this study was to investigate the effect of match play on the performance of technical actions in professional soccer players. Using computerized notational analysis, technical performance was quantified for the outfield players of one team during the 2010/2011 English Championship season. This retrospectiv...

journal_title：Journal of strength and conditioning research

authors： Russell M,Rees G,Kingsley MI

更新日期：2013-10-01 00:00:00

abstract：:Lawrence, MA, Ostrowski, SJ, Leib, DJ, and Carlson, LA. Effect of unstable loads on stabilizing muscles and bar motion during the bench press. J Strength Cond Res XX(X): 000-000, 2018-Unstable loads are anecdotally used to increase muscle stabilizer strength and utilization; however, there is little evidence to suppor...

journal_title：Journal of strength and conditioning research

authors： Lawrence MA,Ostrowski SJ,Leib DJ,Carlson LA

更新日期：2018-08-21 00:00:00

abstract：:Cerasola, D, Cataldo, A, Bellafiore, M, Traina, M, Palma, A, Bianco, A, and Capranica, L. Race profiles of rowers during the 2014 Youth Olympic Games. J Strength Cond Res 32(7): 2055-2060, 2018-Among the different factors affecting the outcome of elite rowing competitions, pacing strategy plays a relevant role. The pu...

journal_title：Journal of strength and conditioning research

authors： Cerasola D,Cataldo A,Bellafiore M,Traina M,Palma A,Bianco A,Capranica L

更新日期：2018-07-01 00:00:00

abstract：:We evaluated a submaximal and maximal version of the Yo-Yo intermittent recovery level 1 children's (YYIR1C) test and the Andersen test for fitness and maximal heart rate assessments of children aged 6-10 years. Two repetitions of the YYIR1C and Andersen tests were carried out within 1 week by 6- to 7-year-olds and 8-...

journal_title：Journal of strength and conditioning research

authors： Bendiksen M,Ahler T,Clausen H,Wedderkopp N,Krustrup P

更新日期：2013-06-01 00:00:00