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

abstract：:Special training methods in wrestling have been assumed to improve the stability and tolerance of the neck. The aim of this study was to measure the neck strength levels reached in an extremely physically demanding sport. A neck strength measurement system was used to measure various parameters of maximal isometric ne...

journal_title：Journal of strength and conditioning research

authors： Ylinen JJ,Julin M,Rezasoltani A,Virtapohja H,Kautiainen H,Karila T,Mälkiä E

更新日期：2003-11-01 00:00:00

abstract：:Lipford, GF, Evans, RK, Acevedo, EO, Wolfe, LG, and Franco, RL. Excess blood flow response to acute resistance exercise in individuals who are obese or nonobese. J Strength Cond Res 31(11): 3120-3127, 2017-Resistance exercise (RE) is a commonly recommended treatment option for obese individuals. However, little is kno...

journal_title：Journal of strength and conditioning research

authors： Lipford GF,Evans RK,Acevedo EO,Wolfe LG,Franco RL

更新日期：2017-11-01 00:00:00

abstract：:The purpose of this study was to examine the acute effects of 3 different warm-up protocols with and without a weighted vest on vertical jump (VJ) and long jump (LJ) performance in athletic women. Sixteen subjects (19.7 +/- 1.4 years, 67.0 +/- 10.7 kg, 165.7 +/- 11.4 cm) participated in 3 testing sessions in random or...

journal_title：Journal of strength and conditioning research

authors： Thompsen AG,Kackley T,Palumbo MA,Faigenbaum AD

更新日期：2007-02-01 00:00:00

abstract：:The affective benefits associated with aerobic exercise are well documented. However, literature concerning resistance exercise has suggested a more variable response (i.e., a short duration increase in state anxiety, which eventually is reduced below baseline) and thus may play an important role in the adoption and m...

journal_title：Journal of strength and conditioning research

authors： Bibeau WS,Moore JB,Mitchell NG,Vargas-Tonsing T,Bartholomew JB

更新日期：2010-08-01 00:00:00

abstract：:Anecdotal evidence suggests the widespread usage of anabolic steroids among athletes (20-90%), particularly at the professional and elite amateur levels. In contrast, scientific studies indicate that usage is rare and no higher than 6%. Conclusions from scientific studies suggest that anabolic steroid usage declines p...

journal_title：Journal of strength and conditioning research

authors： Berning JM,Adams KJ,Stamford BA

更新日期：2004-11-01 00:00:00

abstract：:Perceptions of wellness are often used by athletes and coaches to assess adaptive responses to training. The purpose of this research was to describe how players were coping with the demands of elite level Australian football over a competitive season using subjective ratings of physical and psychological wellness and...

journal_title：Journal of strength and conditioning research

authors： Gastin PB,Meyer D,Robinson D

更新日期：2013-09-01 00:00:00

abstract：:The purposes of this study were firstly to investigate whether learning affects were present in the administration of 4 hop tests and the Agility T-test and secondly to assess the between-session reliability of these tests. Twenty-two recreational athletes (11 women: age 22.3 ± 3.7 years, height 167.7 ± 6.2 cm, weight...

journal_title：Journal of strength and conditioning research

authors： Munro AG,Herrington LC

更新日期：2011-05-01 00:00:00

abstract：:This study assessed the effects of partial sleep deprivation on short-term maximal performances of judokas in the morning and afternoon of the following day. In a randomized design, 12 judokas completed the maximal voluntary contraction, the handgrip, and the Wingate tests before and after a judo combat. Measurements ...

journal_title：Journal of strength and conditioning research

authors： Souissi N,Chtourou H,Aloui A,Hammouda O,Dogui M,Chaouachi A,Chamari K

更新日期：2013-09-01 00:00:00

abstract：:This study sought to determine whether a 12-week intermittent (INT; 2 x 15 min.d(-1)) exercise program yielded similar improvements in cardiovascular health and fitness, compared with a traditional 12-week, 30-minute continuous (CON; 1 x 30 min.d(-1)) exercise program. A second purpose was to determine the effects of ...

journal_title：Journal of strength and conditioning research

authors： Quinn TJ,Klooster JR,Kenefick RW

更新日期：2006-02-01 00:00:00

abstract：:The purpose of this investigation was to quantify the effects that a practical bout of static stretching (SS) and dynamic stretching (DS) has on maximal countermovement jump (CMJ) height across a time spectrum of 25 minutes in National Collegiate Athletic Association Division I varsity volleyball players. Eleven femal...

journal_title：Journal of strength and conditioning research

authors： Kruse NT,Barr MW,Gilders RM,Kushnick MR,Rana SR

更新日期：2013-11-01 00:00:00

abstract：:Spitz, RW, Wong, V, Bell, ZW, Viana, RB, Chatakondi, RN, Abe, T, and Loenneke, JP. Blood flow restricted exercise and discomfort: A Review. J Strength Cond Res XX(X): 000-000, 2020-Blood flow restriction exercise involves using a pneumatic cuff or elastic band to restrict arterial inflow into the muscle and block veno...

journal_title：Journal of strength and conditioning research

authors： Spitz RW,Wong V,Bell ZW,Viana RB,Chatakondi RN,Abe T,Loenneke JP

更新日期：2020-02-13 00:00:00

abstract：:Military fitness is defined as a hierarchical 4-level construct in the German armed forces: (a) "Fundamental/Baseline Fitness," (b) "Basic Military Fitness," (c) "Task Fitness," and (d) "Mission Fitness." "Fundamental/Baseline Fitness" is assessed with the "Basic Fitness Test." However, this test alone is not sufficie...

journal_title：Journal of strength and conditioning research

authors： Rohde U,Sievert A,Rüther T,Witzki A,Leyk D

更新日期：2015-11-01 00:00:00

abstract：:We examined whether elbow position affects the handgrip strength in adolescents. The criterion-related validity and reliability of the Jamar, DynEx, and TKK dynamometers were also analyzed. A total of 66 adolescents aged 12 to16 years performed the handgrip strength test with the elbow extended and flexed at 90 degree...

journal_title：Journal of strength and conditioning research

authors： España-Romero V,Ortega FB,Vicente-Rodríguez G,Artero EG,Rey JP,Ruiz JR

更新日期：2010-01-01 00:00:00

abstract：:Firefighters are required to perform a variety of strenuous occupational tasks that require high levels of both aerobic and anaerobic fitness. Thus, it is critical that firefighters train at an appropriate intensity to develop adequate levels of aerobic and anaerobic fitness. Circuit training is a unique training meth...

journal_title：Journal of strength and conditioning research

authors： Abel MG,Mortara AJ,Pettitt RW

更新日期：2011-10-01 00:00:00

abstract：:Dello Iacono, A, Martone, D, Milic, M, and Padulo, J. Vertical- vs. horizontal-oriented drop jump training: chronic effects on explosive performances of elite handball players. J Strength Cond Res 31(4): 921-931, 2017-This study aimed to assess the chronic effects of vertical drop jump (VDJ)- and horizontal drop jump ...

journal_title：Journal of strength and conditioning research

authors： Dello Iacono A,Martone D,Milic M,Padulo J

更新日期：2017-04-01 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：:The aim of this study was to examine the concurrent validity of 2 portable systems for vertical jump (VJ) assessment under field conditions. The VJ flight times assessed using an optical mat (Optojump) and an accelerometer-based (Myotest) system were compared with that of a force platform. The flight times recorded du...

journal_title：Journal of strength and conditioning research

authors： Castagna C,Ganzetti M,Ditroilo M,Giovannelli M,Rocchetti A,Manzi V

更新日期：2013-03-01 00:00:00

abstract：:The purpose of the study was to compare 6-repetition maximum (6RM) loads and muscle activity in bench press on 3 surfaces, namely, stable bench, balance cushion, and Swiss ball. Sixteen healthy, resistance-trained men (age 22.5 ± 2.0 years, stature 1.82 ± 6.6 m, and body mass 82.0 ± 7.8 kg) volunteered for 3 habituati...

journal_title：Journal of strength and conditioning research

authors： Saeterbakken AH,Fimland MS

更新日期：2013-04-01 00:00:00

abstract：:The purpose of this study was to determine the relationship between squat loads and 2 bilateral and 2 unilateral stepping lower-body exercises in predominantly unilateral movement elite athletes (Karate). Equations to predict loads for lower-body exercises based on the squat load were also determined. Fourteen male el...

journal_title：Journal of strength and conditioning research

authors： Wong del P,Tan EC,Chaouachi A,Carling C,Castagna C,Bloomfield J,Behm DG

更新日期：2010-11-01 00:00:00

abstract：:The purpose of this study was to investigate the effect of 4 different step detection thresholds (10, 15, 20, and 30% body mass [BM]) on the kinetics and kinematics of a youth population sprinting on a Woodway nonmotorized treadmill (NMT). A total of 16 male youth athletes sprinted 30 m from a split start position. Of...

journal_title：Journal of strength and conditioning research

authors： Cronin JB,Rumpf MC

更新日期：2014-10-01 00:00:00

abstract：:The electrophoretic separation of myosin heavy chain isoforms from muscle biopsy homogenates has been widely practiced in the field of exercise physiology to examine how intrinsic (i.e., aging) and extrinsic (i.e., training) factors affect muscle phenotype. In the past, various research groups have used large and mini...

journal_title：Journal of strength and conditioning research

authors： Roberts MD,Dalbo VJ,Sunderland KL,Kerksick CM

更新日期：2012-12-01 00:00:00

abstract：:Kilit, B and Arslan, E. Effects of high-intensity interval training vs. on-court tennis training in young tennis players. J Strength Cond Res 33(1): 188-196, 2019-This study aimed to examine the effects of 6 weeks of high-intensity interval training (HIIT) vs. 6 weeks of on-court tennis training (OTT) on the psychophy...

journal_title：Journal of strength and conditioning research

authors： Kilit B,Arslan E

更新日期：2019-01-01 00:00:00

abstract：:The bench press exercise exists in multiple forms including the machine and free weight bench press. It is not clear though how each mode differs in its effect on muscle activation. The purpose of this study was to compare muscle activation of the anterior deltoid, medial deltoid, and pectoralis major during a Smith m...

journal_title：Journal of strength and conditioning research

authors： Schick EE,Coburn JW,Brown LE,Judelson DA,Khamoui AV,Tran TT,Uribe BP

更新日期：2010-03-01 00:00:00

abstract：:The purpose of this study was to investigate the force-velocity response of the neuromuscular system to a variety of concentric only, stretch-shorten cycle, and ballistic bench press movements. Twenty-seven men of an athletic background (21.9 +/- 3.1 years, 89.0 +/- 12.5 kg, 86.3 +/- 13.6 kg 1 repetition maximum [1RM]...

journal_title：Journal of strength and conditioning research

authors： Cronin JB,McNair PJ,Marshall RN

更新日期：2003-02-01 00:00:00

abstract：UNLABELLED:Some recommendations suggest keeping the shank as vertical as possible during the barbell squat, thus keeping the knees from moving past the toes. This study examined joint kinetics occurring when forward displacement of the knees is restricted vs. when such movement is not restricted. Seven weight-trained m...

journal_title：Journal of strength and conditioning research

authors： Fry AC,Smith JC,Schilling BK

更新日期：2003-11-01 00:00:00

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

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

更新日期：2007-08-01 00:00:00

abstract：:The aim of this study was twofold: (i) to describe the criterion-related validity of the sit-and-reach test (SRT) using a hand-held inclinometer when assessing hamstring muscle length (HML) when HML is recorded in degrees of hip joint angle (HJA); and (ii) to describe the effect of gender and age on HML in healthy adu...

journal_title：Journal of strength and conditioning research

authors： Youdas JW,Krause DA,Hollman JH

更新日期：2008-01-01 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：:The purpose of this study was to analyze the level of creatine use along with the perceived benefits and barriers of creatine use among collegiate athletes who participate in throwing events within the sport of track and field. A total of 258 throwers from National Collegiate Athletic Association Division I institutio...

journal_title：Journal of strength and conditioning research

authors： Judge LW,Petersen JC,Craig BW,Hoover DL,Holtzclaw KA,Leitzelar BN,Tyner RM,Blake AS,Hindawi OS,Bellar DM

更新日期：2015-07-01 00:00:00

abstract：:The purpose of this study was to evaluate the effects of sprint training on muscle function and dynamic athletic performance and to compare them with the training effects induced by standard plyometric training. Male physical education students were assigned randomly to 1 of 3 groups: sprint group (SG; n = 30), plyome...

journal_title：Journal of strength and conditioning research

authors： Markovic G,Jukic I,Milanovic D,Metikos D

更新日期：2007-05-01 00:00:00