abstract：:This study sought to compare the anthropometric profiles of 17 weaker and 17 stronger Australasian and Pacific powerlifters who had competed in a regional-, national-, or international-level powerlifting competition in New Zealand. Stronger lifters were defined as those having a Wilks score greater than 410, whereas t...

journal_title：Journal of strength and conditioning research

authors： Keogh JW,Hume PA,Pearson SN,Mellow PJ

更新日期：2009-11-01 00:00:00

abstract：:This study compared anthropometric and performance variables in professional baseball players and examined the relationship between these variables and baseball-specific performance (i.e., home runs, total bases, slugging percentage, and stolen bases). During a 2-year period, 343 professional baseball players were ass...

journal_title：Journal of strength and conditioning research

authors： Hoffman JR,Vazquez J,Pichardo N,Tenenbaum G

更新日期：2009-11-01 00:00:00

abstract：:The aim of the present study was to investigate the effect of playing position on strength, power, speed, and agility performances of women basketball players. Thirty subjects playing at national level participated in this study. They were divided into 3 groups according to playing position: guards (positions 1 and 2)...

journal_title：Journal of strength and conditioning research

authors： Delextrat A,Cohen D

更新日期：2009-10-01 00:00:00

abstract：:Resistance training has previously been purported to be unsafe and ineffective in children. The purpose of this investigation was to evaluate resistance training-related injuries presenting to U.S. emergency rooms by age, type, and mechanism of injury. We hypothesized that older athletes would sustain greater percenta...

journal_title：Journal of strength and conditioning research

authors： Myer GD,Quatman CE,Khoury J,Wall EJ,Hewett TE

更新日期：2009-10-01 00:00:00

abstract：:The purpose was to test the validity of a nomogram to predict performance at distances ranging from the 10 km to the marathon. Official running rankings of the French Athletics Federation for the men's 10 km, 20 km, and marathon were scrutinized from 2002 to 2006. Performances of runners who competed in the 3 distance...

journal_title：Journal of strength and conditioning research

authors： Coquart JB,Alberty M,Bosquet L

更新日期：2009-10-01 00:00:00

abstract：:It is theorized that the force and velocity profile of a repetition performed during a standard barbell exercise may be altered by substituting suspended chains for some portion of the total resistance. The purpose of this study was to document the alterations in lifting velocity that occur when the bench press exerci...

journal_title：Journal of strength and conditioning research

authors： Baker DG,Newton RU

更新日期：2009-10-01 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：:The purpose of this study was to determine the effect of circuit training directed toward motion and action velocity over the sprint-agility and anaerobic endurance. A total of 32 healthy male physical education students with a mean age of 23.92 +/- 1.51 years were randomly allocated into a circuit training group (CTG...

journal_title：Journal of strength and conditioning research

authors： Taşkin H

更新日期：2009-09-01 00:00:00

abstract：:A nonlinear model of training responses was utilized to test whether a 2-phase taper could be more effective than a traditional linear taper. Simulations were conducted using model parameters previously determined in 6 nonathletes trained on a cycle ergometer (non-ATH) and 7 elite swimmers trained in sport-specific co...

journal_title：Journal of strength and conditioning research

authors： Thomas L,Mujika I,Busso T

更新日期：2009-09-01 00:00:00

abstract：:Muscle dysmorphia is a form of body dysmorphic disorder in which individuals have a pathological preoccupation with their muscularity and, more specifically, an extreme fear that their bodies are too small. Relatively few empirical studies have been completed on muscle dysmorphia, and even fewer studies on the relatio...

journal_title：Journal of strength and conditioning research

authors： Robert CA,Munroe-Chandler KJ,Gammage KL

更新日期：2009-09-01 00:00:00

abstract：:The purpose of this study was to measure and analyze kinematic differences between competitive collegiate (CLG, n = 9) powerlifters, competitive high school (HS, n = 9) powerlifters, and novice (NV, n = 11) powerlifters during a maximal squat to determine the effect of skill level on performance. All powerlifters perf...

journal_title：Journal of strength and conditioning research

authors： Miletello WM,Beam JR,Cooper ZC

更新日期：2009-08-01 00:00:00

abstract：:The purpose of this study was to examine performance differences between starters and nonstarters and between different playing positions in collegiate female lacrosse athletes. Twenty-two subjects playing on a two-time defending National Champion National Collegiate Athletic Association Division III female lacrosse t...

journal_title：Journal of strength and conditioning research

authors： Hoffman JR,Ratamess NA,Neese KL,Ross RE,Kang J,Magrelli JF,Faigenbaum AD

更新日期：2009-08-01 00:00:00

abstract：:Although from an athletic performance perspective it may be beneficial to undertake drop jump training when fatigued (principle of "specificity" of training), such endurance fatigue may expose the body to a greater risk of injury if it causes an increase in peak impact accelerations. This study aimed to determine if e...

journal_title：Journal of strength and conditioning research

authors： Moran KA,Clarke M,Reilly F,Wallace ES,Brabazon D,Marshall B

更新日期：2009-08-01 00:00:00

abstract：:Research suggests that caffeine may improve performance in aerobic exercise; the evidence for anaerobic performance is mixed. This study examined the effect of caffeine (5 mg/kg body weight [BW]) vs. placebo on performance-based anaerobic exercise tests used during the National Football League (NFL) Combine. Collegiat...

journal_title：Journal of strength and conditioning research

authors： Woolf K,Bidwell WK,Carlson AG

更新日期：2009-08-01 00:00:00

abstract：:Traditionally, baseball players have used a heavy bat for warm-up before competition. Because bat velocity is an essential component to hitting a baseball, and because players warm up differently, there is a need to investigate the best way to maximize post warm-up bat velocity. The purpose of this study was to determ...

journal_title：Journal of strength and conditioning research

authors： Montoya BS,Brown LE,Coburn JW,Zinder SM

更新日期：2009-08-01 00:00:00

abstract：:The current case study attempted to document the contemporary demands of elite rugby union. Players (n = 2) were tracked continuously during a competitive team selection game using Global Positioning System (GPS) software. Data revealed that players covered on average 6,953 m during play (83 minutes). Of this distance...

journal_title：Journal of strength and conditioning research

authors： Cunniffe B,Proctor W,Baker JS,Davies B

更新日期：2009-07-01 00:00:00

abstract：:Caplan, N, Rogers, R, Parr, MK, and Hayes, PR. The effect of proprioceptive neuromuscular facilitation and static stretch training on running mechanics. J Strength Cond Res 23(4): 1175-1180, 2009-There is a long-standing belief that increased range of movement (RoM) at the hip or knee will improve running mechanics; h...

journal_title：Journal of strength and conditioning research

authors： Caplan N,Rogers R,Parr MK,Hayes PR

更新日期：2009-07-01 00:00:00

abstract：:The aim of this study was to compare the acute influence of 2 intensities of aerobic exercise on a strength training session in physically active elderly women. Twenty-five women (74.3 +/- 2.8 years) with previous experience in both resistance and aerobic exercise volunteered to perform aerobic activity (60 and 80% ma...

journal_title：Journal of strength and conditioning research

authors： Lemos A,Simão R,Polito M,Salles B,Rhea MR,Alexander J

更新日期：2009-07-01 00:00:00

abstract：:Anthropometric equations, based on 2-compartment models, have been routinely used to estimate body composition in female college athletes; however, these equations are not without error. In an attempt to decrease the error associated with anthropometric equations, updated equations were developed using multiple-compar...

journal_title：Journal of strength and conditioning research

authors： Moon JR,Tobkin SE,Smith AE,Lockwood CM,Walter AA,Cramer JT,Beck TW,Stout JR

更新日期：2009-07-01 00:00:00

abstract：:The purpose of this investigation was to examine the effects of a 5-week, low-cost unstable surface balance training program in sexagenarians. Nineteen men and women (60-68 years; 83.7 +/- SD kg) were randomly assigned to a control or training group. The training group performed various balance activities on air-fille...

journal_title：Journal of strength and conditioning research

authors： Schilling BK,Falvo MJ,Karlage RE,Weiss LW,Lohnes CA,Chiu LZ

更新日期：2009-07-01 00:00:00

abstract：:The purpose of this case study is to establish how a gradual increase in fatigue affects the position of the arms and shoulders during a long shot in a basketball game. For this purpose, Primoz Brezec, an elite National Basketball Association player, performed a total of 7 series of 20 shots from a distance of 7.24 m....

journal_title：Journal of strength and conditioning research

authors： Erculj F,Supej M

更新日期：2009-05-01 00:00:00

abstract：:The aim of this study is to estimate the metabolic and hormone response in middle-aged women to acute physical aerobic exercise accompanied by music, the so-called "aerobics." The experiment (single 60-minute aerobics session) included 11 women aged between 30 and 50. The following variables were determined in blood s...

journal_title：Journal of strength and conditioning research

authors： Charmas M,Opaszowski BH,Charmas R,Rózańska D,Jówko E,Sadowski J,Dorofeyeva L

更新日期：2009-05-01 00:00:00

abstract：:Force platforms are used extensively to measure force and power output during countermovement jump (CMJ). The purpose of this study was to examine measurement reliability and validity of commonly used performance measurements derived from ground reaction force (GRF)-time data during CMJ and the influence of sampling a...

journal_title：Journal of strength and conditioning research

authors： Hori N,Newton RU,Kawamori N,McGuigan MR,Kraemer WJ,Nosaka K

更新日期：2009-05-01 00:00:00

abstract：:Ponderal somatograms assessed body composition in four groups of Division III collegiate football players: offensive line (OL), defensive line (DL), offensive backs (OB), and defensive backs (DB). Ponderal somatograms evaluate body size and shape by converting muscular (shoulders, chest, biceps, forearm, thigh, and ca...

journal_title：Journal of strength and conditioning research

authors： Stuempfle KJ,Drury DG,Petrie DF,Katch FI

更新日期：2009-05-01 00:00:00

abstract：:This research aimed to critically examine the effectiveness of a time-limited and distance-regulated interval training program on subelite field hockey players. Subjects comprised 22 women (26.1 +/- 4.5 years, 62.8 +/- 7.4 kg, 1.7 +/- 0.9 m) and 22 men (22.1 +/- 3.2 years, 74.9 +/- 5.4 kg, 1.8 +/- 0.5 m) field hockey ...

journal_title：Journal of strength and conditioning research

authors： Chapman DW,Newton MJ,McGuigan MR

更新日期：2009-05-01 00:00:00

abstract：:An excessive load in resisted sprint training can produce changes in running patterns. Therefore, load control is essential to ensure the specificity of these training methods. The most common way to control it is through the percentage of velocity lost in relation to maximum velocity. The present paper describes a st...

journal_title：Journal of strength and conditioning research

authors： Alcaraz PE,Palao JM,Elvira JL

更新日期：2009-03-01 00:00:00

abstract：:In addition to aerobic endurance and anaerobic capacity, high power-to-weight ratio (PWR) is important for cycling performance. Cyclists often try to lose weight before race season to improve body composition and optimize PWR. Research has demonstrated body fat-reducing benefits of exercise after fasting overnight. We...

journal_title：Journal of strength and conditioning research

authors： Ferguson LM,Rossi KA,Ward E,Jadwin E,Miller TA,Miller WC

更新日期：2009-03-01 00:00:00

abstract：:There is some debate in the literature as to whether strength deficits exist at the ankle in individuals with chronic ankle instability (CAI). Additionally, there is evidence to suggest that knee and hip performance is altered in those with CAI. Therefore, the purpose of this study was to determine whether CAI is asso...

journal_title：Journal of strength and conditioning research

authors： Gribble PA,Robinson RH

更新日期：2009-03-01 00:00:00

abstract：:The purpose of this study was to determine, based on the time course of the velocity and stride pattern recorded in each 50-m segment of a 400-m competition, whether elite 400-m runners present the same pacing strategy as less successful athletes. Based on video data, 3 different levels of performance were analyzed: w...

journal_title：Journal of strength and conditioning research

authors： Hanon C,Gajer B

更新日期：2009-03-01 00:00:00

abstract：:The purpose of this study was to determine the effect of below-knee compression stockings on running performance in men runners. Using a within-group study design, 21 moderately trained athletes (39.3 +/- 10.9 years) without lower-leg abnormities were randomly assigned to perform a stepwise treadmill test up to a volu...

journal_title：Journal of strength and conditioning research

authors： Kemmler W,von Stengel S,Köckritz C,Mayhew J,Wassermann A,Zapf J

更新日期：2009-01-01 00:00:00

abstract：:The purpose of this investigation was to examine the impact of training on the power-, force-, and velocity-time curves of the countermovement jump (CMJ) through both cross-sectional and longitudinal comparisons. The most novel aspect of this study was the analysis of these curves for the entire movement at a sampling...

journal_title：Journal of strength and conditioning research

authors： Cormie P,McBride JM,McCaulley GO

更新日期：2009-01-01 00:00:00

abstract：:Increasing participation rates for women's lacrosse necessitate a clear understanding of fitness parameters for this athlete group. However, limited sport-specific information is available. We described the physiological profile of an NCAA Division I women's lacrosse team to provide current data for this specific athl...

journal_title：Journal of strength and conditioning research

authors： Enemark-Miller EA,Seegmiller JG,Rana SR

更新日期：2009-01-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of chain- (CBP) and plate-loaded (PBP) bench press training on measures of strength, shoulder pain, and muscle soreness in Division II baseball players. Twenty-eight subjects with previous resistance training experience (4.8 +/- 2.7 years) completed the study wh...

journal_title：Journal of strength and conditioning research

authors： McCurdy K,Langford G,Ernest J,Jenkerson D,Doscher M

更新日期：2009-01-01 00:00:00

abstract：:The purpose of this investigation was to examine the acute effects of whole-body vibration (WBV) on muscular strength, flexibility, and heart rate (HR). Twenty adults (10 men, 10 women) untrained to WBV participated in the study. All subjects completed assessment of lower-extremity isokinetic torque, flexibility, and ...

journal_title：Journal of strength and conditioning research

authors： Jacobs PL,Burns P

更新日期：2009-01-01 00:00:00

abstract：:The aim of our research was primarily to compare the conditional abilities of European countries' Fédération Internationale de Football Association (FIFA) referees with those of Hungarian national and county referees and, secondly, to investigate whether the stop tests of FIFA and the Union of European Football Associ...

journal_title：Journal of strength and conditioning research

authors： Bartha C,Petridis L,Hamar P,Puhl S,Castagna C

更新日期：2009-01-01 00:00:00

abstract：:The purpose of this study was to establish validity and reliability evidence for the medicine ball throw test for kindergarten students, an underrepresented group in the literature. The subjects were 105 students, 5-7 years old, BMI 17.44 +/- 3.17 kg x m(-2), 43% female and 57% male. Intraclass correlation coefficient...

journal_title：Journal of strength and conditioning research

authors： Davis KL,Kang M,Boswell BB,DuBose KD,Altman SR,Binkley HM

更新日期：2008-11-01 00:00:00

abstract：:The purpose of this study was to examine the changes to block start and early acceleration sprint kinematics with resisted sled towing. Ten male sprinters performed 12 sprints (four each of unresisted and approximately 10 and 20% body mass [BM]) for 10 m from a block start. Two-dimensional high-speed video footage (25...

journal_title：Journal of strength and conditioning research

authors： Maulder PS,Bradshaw EJ,Keogh JW

更新日期：2008-11-01 00:00:00

abstract：:The purpose of this study was to examine the effects of a 6-week, periodized squat training program, with or without whole-body low-frequency vibration (WBLFV), on jump performance. Males ranged in age from 20 to 30 years and were randomized into groups that did squat training with (SQTV, n = 13) or without (SQT, n = ...

journal_title：Journal of strength and conditioning research

authors： Lamont HS,Cramer JT,Bemben DA,Shehab RL,Anderson MA,Bemben MG

更新日期：2008-11-01 00:00:00

abstract：:The purpose of this study was to compare the peak force and force curve characteristics during a traditional bench press (BP) and a ballistic bench throw (BT). Eight (age = 21.0 +/- 2.3 years, height = 182.3 +/- 7.4 cm, body mass = 85.9 +/- 5.5 kg) semi-professional rugby league players with resistance and power train...

journal_title：Journal of strength and conditioning research

authors： Clark RA,Bryant AL,Humphries B

更新日期：2008-11-01 00:00:00

abstract：:This study aimed to examine the relationships between muscle power output using the stretch-shortening cycle (SSC) and eccentric maximum strength under elbow flexion. Eighteen young adult males pulled up a constant light load (2 kg) by ballistic elbow flexion under the following two preliminary conditions: 1) the stat...

journal_title：Journal of strength and conditioning research

authors： Miyaguchi K,Demura S

更新日期：2008-11-01 00:00:00