Abdominal Muscle Activation During Common Modifications of the Trunk Curl-up Exercise.

abstract：:The aim of this study was to examine the effects of training at the same time of the day on the diurnal variations of anaerobic performances to provide some recommendations to adjust training hours with the time of the day of competitive events. Thirty participants underwent 8 weeks of lower-extremity progressive resi...

journal_title：Journal of strength and conditioning research

authors： Chtourou H,Driss T,Souissi S,Gam A,Chaouachi A,Souissi N

更新日期：2012-01-01 00:00:00

abstract：:Talpey, SW, Young, WB, and Beseler, B. Effect of instructions on selected jump squat variables. J Strength Cond Res 30(9): 2508-2513, 2016-The purpose of this study was to compare 2 instructions on the performance of selected variables in a jump squat (JS) exercise. The second purpose was to determine the relationship...

journal_title：Journal of strength and conditioning research

authors： Talpey SW,Young WB,Beseler B

更新日期：2016-09-01 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：:Barbell back squats are a popular exercise for developing lower extremity strength and power. However, this exercise has potential injury risks, particularly to the lumbar spine, pelvis, and hip joint. Previous literature suggests heel wedges as a means of favorably adjusting trunk and pelvis kinematics with the inten...

journal_title：Journal of strength and conditioning research

authors： Charlton JM,Hammond CA,Cochrane CK,Hatfield GL,Hunt MA

更新日期：2017-06-01 00:00:00

abstract：:The purpose of this study was to measure the effects of additional eccentric loading on subsequent concentric strength. Eight subjects with some experience in weight training volunteered to perform maximal attempts in the barbell bench press using detaching hooks that allowed them to lower 105% of their concentric 1 r...

journal_title：Journal of strength and conditioning research

authors： Doan BK,Newton RU,Marsit JL,Triplett-McBride NT,Koziris LP,Fry AC,Kraemer WJ

更新日期：2002-02-01 00:00:00

abstract：:The objective of this study was to determine the effect of acute moderate hypoxia and rest duration on performance and on the accumulated oxygen deficit (AOD) in high-intensity intermittent efforts. After preliminary tests, 2 groups of nonacclimatized men (resident at 690 m above sea level) carried out 3 randomized pr...

journal_title：Journal of strength and conditioning research

authors： Feriche B,Delgado M,Calderón C,Lisbona O,Chirosa IJ,Miranda MT,Fernández JM,Alvarez J

更新日期：2007-05-01 00:00:00

abstract：:The purpose of the present study was to compare the age-related patterns of anthropometric dimensions of female high school gymnasts to those of a national representative sample of teenage girls. One hundred and one female high school gymnasts (X ± SD age = 15.8 ± 1.1 year; height [HT] = 162.2 ± 5.7 cm; body weight [B...

journal_title：Journal of strength and conditioning research

authors： Zuniga J,Housh TJ,Camic CL,Mielke M,Hendrix CR,Johnson GO,Housh DJ,Schmidt RJ

更新日期：2011-01-01 00:00:00

abstract：:Fitzpatrick, JF, Hicks, KM, Russell, M, and Hayes, PR. The reliability of potential fatigue-monitoring measures in elite youth soccer players. J Strength Cond Res XX(X): 000-000, 2019-Monitoring fatigue is of vital importance to practitioners; however, logistics and concerns about reliability may impede the use of cer...

journal_title：Journal of strength and conditioning research

authors： Fitzpatrick JF,Hicks KM,Russell M,Hayes PR

更新日期：2019-09-06 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：:Matsumoto M, Satoh, K, Kushi, H, Hamuro, K, Sakurai, M, Saito, H, Tanaka, R, Saito, T, Kohda, N, and Hamada, K. Salivary immunoglobulin A secretion rate during peak period conditioning regimens in triathletes. J Strength Cond Res XX(X): 000-000, 2019-Triathletes often feel unwell during the conditioning period (peak p...

journal_title：Journal of strength and conditioning research

authors： Matsumoto M,Satoh K,Kushi H,Hamuro K,Sakurai M,Saito H,Tanaka R,Saito T,Kohda N,Hamada K

更新日期：2019-01-23 00:00:00

abstract：:The purpose of the study was to examine the potential for using the mechanomyographic (MMG) signal as a biofeedback method to enhance muscular relaxation and to improve performance during forearm flexion repetitions to fatigue. Twelve adult (mean +/- SD; age: 22.0 +/- 1.1 years) moderately trained subjects (weight: 82...

journal_title：Journal of strength and conditioning research

authors： Evetovich TK,Conley DS,Todd JB,Rogers DC,Stone TL

更新日期：2007-02-01 00:00:00

abstract：:There has recently been a growing interest in long-term athletic development for youth. Because of their unique physical, psychological, and social differences, children and adolescents should engage in appropriately prescribed exercise programs that promote physical development to prevent injury and enhance fitness b...

journal_title：Journal of strength and conditioning research

authors： Lloyd RS,Cronin JB,Faigenbaum AD,Haff GG,Howard R,Kraemer WJ,Micheli LJ,Myer GD,Oliver JL

更新日期：2016-06-01 00:00:00

abstract：:The purpose of this study was to compare and correlate the effect of age group, sex, depth of water immersion, and the heart rate (HR) assessed out of the water on the HR behavior in individuals subjected to head-out water immersion. A total of 395 healthy individuals of both sexes, aged between 07 and 75 years, under...

journal_title：Journal of strength and conditioning research

authors： Kruel LF,Peyré-Tartaruga LA,Coertjens M,Dias AB,Da Silva RC,Rangel AC

更新日期：2014-01-01 00:00:00

abstract：:The purpose of this experiment was to examine the effects of concurrent endurance and explosive strength training on electromyography (EMG) and force production of leg extensors, sport-specific rapid force production, aerobic capacity, and work economy in cross-country skiers. Nineteen male cross-country skiers were a...

journal_title：Journal of strength and conditioning research

authors： Mikkola JS,Rusko HK,Nummela AT,Paavolainen LM,Häkkinen K

更新日期：2007-05-01 00:00:00

abstract：:It is commonly accepted that vertical jump performance is a good indicator of maximal joint power. Some studies, however, have indicated that knee joint power output in the vertical jump is limited due to forward trunk inclination early in the push-off. The aim of this experimental study was to investigate the effect ...

journal_title：Journal of strength and conditioning research

authors： Vanrenterghem J,Lees A,Clercq DD

更新日期：2008-05-01 00:00:00

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

authors： Hayes PR,Bowen SJ,Davies EJ

更新日期：2004-11-01 00:00:00

abstract：:High-intensity resistance training (HRT) has been recommended to offset age-related loss in muscle strength and mass. However, part of the elderly population is often unable to exercise at high intensities. Alternatively, low-intensity resistance training with blood flow restriction (LRT-BFR) has emerged. The purpose ...

journal_title：Journal of strength and conditioning research

authors： Vechin FC,Libardi CA,Conceição MS,Damas FR,Lixandrão ME,Berton RP,Tricoli VA,Roschel HA,Cavaglieri CR,Chacon-Mikahil MP,Ugrinowitsch C

更新日期：2015-04-01 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：: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：:The purpose of this meta-analysis was to attempt to gain a clear picture of the magnitude of sprint performance improvements expected after chronic plyometric training (PT) and to identify specific factors that influence the treatment effects. Studies employing a PT intervention and containing data necessary to calcul...

journal_title：Journal of strength and conditioning research

authors： Sáez de Villarreal E,Requena B,Cronin JB

更新日期：2012-02-01 00:00:00

abstract：:Cardio kickboxing classes have become a popular form of exercise to enhance fitness. This study surveyed kickboxing participants and instructors to ascertain the severity, type, and incidence of injuries sustained while performing cardio kickboxing exercise. The respondents consisted of 77.4% instructors and 29.3% par...

journal_title：Journal of strength and conditioning research

authors： Romaine LJ,Davis SE,Casebolt K,Harrison KA

更新日期：2003-08-01 00:00:00

abstract：:In competitive cycling, setting the proper saddle height is important for both performance and injury prevention. This is also true for ergometer use in a laboratory. The cycling literature recommends using a 25 to 35 degrees knee angle to set saddle height for injury prevention and recommends using 109% of inseam len...

journal_title：Journal of strength and conditioning research

authors： Peveler WW,Pounders JD,Bishop PA

更新日期：2007-11-01 00:00:00

abstract：:Gouvêa, AL, Martinez, CG, and Kurtenbach, E. Determining maximal muscle strength in mice: validity and reliability of an adapted swimming incremental overload test. J Strength Cond Res 34(8): 2360-2368, 2020-At present, there are no reliable methods to determine maximal muscle strength in small rodents. Here, we estab...

journal_title：Journal of strength and conditioning research

authors： Gouvêa AL,Martinez CG,Kurtenbach E

更新日期：2020-08-01 00:00:00

abstract：:Paulo, AC, Tricoli, V, Queiroz, ACC, Laurentino, G, and Forjaz, CLM. Blood pressure response during resistance training of different work-to-rest ratio. J Strength Cond Res 33(2): 399-407, 2019-Changes in the work-to-rest ratio (W:R) of resistance training protocols (RTPs) (i.e., decreasing work or increasing rest) re...

journal_title：Journal of strength and conditioning research

authors： Paulo AC,Tricoli V,Queiroz ACC,Laurentino G,Forjaz CLM

更新日期：2019-02-01 00:00:00

abstract：:The purpose of the study was to determine how manipulation of peripheral blood flow during resistance exercise using a light load affected perception and physiological measures compared with moderate load resistance exercise and a control trial. Seven subjects performed a 3 (session) by 2 (biceps curls and calf extens...

journal_title：Journal of strength and conditioning research

authors： Hollander DB,Reeves GV,Clavier JD,Francois MR,Thomas C,Kraemer RR

更新日期：2010-01-01 00:00:00

abstract：:Methenitis, S, Spengos, K, Zaras, N, Stasinaki, A-N, Papadimas, G, Karampatsos, G, Arnaoutis, G, and Terzis, G. Fiber type composition and rate of force development in endurance- and resistance-trained individuals. J Strength Cond Res 33(9): 2388-2397, 2019-The purpose of the study was to investigate the relationship ...

journal_title：Journal of strength and conditioning research

authors： Methenitis S,Spengos K,Zaras N,Stasinaki AN,Papadimas G,Karampatsos G,Arnaoutis G,Terzis G

更新日期：2019-09-01 00:00:00

abstract：:Strength and conditioning training for football has become year-round in virtually all levels of play, but none so much as contemporary NCAA DI football. Football players spend more off-season months and weeks in preparation for sport than is given to in-season practice, let alone play. A present peculiarity to NCAA F...

journal_title：Journal of strength and conditioning research

authors： Anderson SA

更新日期：2012-05-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of rest interval (RI) length on bench press performance in subjects with disparity in maximum strength. Two cohorts of subjects performed 3 bench press protocols in random order consisting of 3 sets of up to 10 repetitions with 75% of 1-repetition maximum (1RM) ...

journal_title：Journal of strength and conditioning research

authors： Ratamess NA,Chiarello CM,Sacco AJ,Hoffman JR,Faigenbaum AD,Ross RE,Kang J

更新日期：2012-07-01 00:00:00

abstract：:This study was undertaken to examine the role of interset stretching on the time course of acceleration portion AP and mean velocity profile during the concentric phase of 2 bench-press sets with a submaximal load (60% of the 1 repetition maximum). Twenty-five college students carried out, in 3 different days, 2 conse...

journal_title：Journal of strength and conditioning research

authors： García-López D,Izquierdo M,Rodríguez S,González-Calvo G,Sainz N,Abadía O,Herrero AJ

更新日期：2010-05-01 00:00:00

abstract：:The purpose of this study was to examine the affective responses to acute resistance exercise (RE) performed at self-selected (SS) and imposed loads in recreationally trained women. Secondary purposes were to (a) examine differences in correlates of motivation for future participation in RE and (b) determine whether a...

journal_title：Journal of strength and conditioning research

authors： Focht BC,Garver MJ,Cotter JA,Devor ST,Lucas AR,Fairman CM

更新日期：2015-11-01 00:00:00