Abstract:
:A bout of eccentric exercise (ECC) has the protective effect of reducing muscle damage during a subsequent bout of ECC known as the "repeated bout effect" (RBE). The purpose of this study was to determine if the RBE is greater when both bouts of ECC are performed using the same vs. different velocity of contraction. Thirty-one right-handed participants were randomly assigned to perform an initial bout of either fast (3.14 rad·s [180°·s]) or slow (0.52 rad·s [30°·s]) maximal isokinetic ECCs of the elbow flexors. Three weeks later, the participants completed another bout of ECC at the same velocity (n = 16), or at a different velocity (n = 15). Indirect muscle damage markers were measured before, immediately after, and at 24, 48, and 72 hours postexercise. Measures included maximal voluntary isometric contraction (MVC) strength (dynamometer), muscle thickness (MT; ultrasound), delayed onset muscle soreness (DOMS; visual analog scale), biceps and triceps muscle activation amplitude (electromyography), voluntary activation (interpolated twitch), and twitch torque. After the repeated bout, MVC strength recovered faster compared with the same time points after the initial bout for only the same velocity group (p = 0.017), with no differences for all the other variables. Irrespective of velocity, MT and DOMS were reduced after the repeated bout compared with that of the initial bout at 24, 48, and 72 hours with a corresponding increase in TT at 72 hours (p < 0.05). Faster recovery of isometric strength associated with a repeated bout of ECC was evident when the velocity was matched between bouts, suggesting that specificity effects contribute to the RBE. The current findings support the idea of multiple mechanisms contributing to the RBE.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Barss TS,Magnus CR,Clarke N,Lanovaz JL,Chilibeck PD,Kontulainen SA,Arnold BE,Farthing JPdoi
10.1519/JSC.0b013e31829d23ddsubject
Has Abstractpub_date
2014-02-01 00:00:00pages
339-49issue
2eissn
1064-8011issn
1533-4287journal_volume
28pub_type
杂志文章abstract::Folk, AL, Garcia, CA, Whitney, SH, and Kovacs, SJ. Relationship between strength and conditioning assessments and rowing performance in female collegiate athletes. J Strength Cond Res XX(X): 000-000, 2020-The purpose of this study was to examine the relationship between strength and conditioning variables and rowing p...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003698
更新日期:2020-06-24 00:00:00
abstract::The ability to complete high-intensity running is essential for soccer. The Yo-Yo Intermittent Recovery Test Level 2 (YYIRT2) can measure this capacity, but there is limited information regarding this assessment in collegiate female soccer players. This study investigated the YYIRT2 as a measure of high-intensity runn...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001734
更新日期:2017-10-01 00:00:00
abstract::Sañudo, B, Rueda, D, del Pozo-Cruz, B, de Hoyo, M, and Carrasco, L. Validation of a video analysis software package for quantifying movement velocity in resistance exercises. J Strength Cond Res 30(10): 2934-2941, 2016-The aim of this study was to establish the validity of a video analysis software package in measurin...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000563
更新日期:2016-10-01 00:00:00
abstract::Jastrzębska, M, Kaczmarczyk, M, and Jastrzębski, Z. Effect of vitamin D supplementation on training adaptation in well-trained soccer players. J Strength Cond Res 30(9): 2648-2655, 2016-There is growing body of evidence implying that vitamin D may be associated with athletic performance, however, studies examining 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.0000000000001337
更新日期:2016-09-01 00:00:00
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
更新日期:2014-10-01 00:00:00
abstract::The purpose of this study was to determine the effects of a 12-week contrast training (CT) program (isometric + plyometric), with no external loads, on the vertical jump, kicking speed, sprinting, and agility skills of young soccer players. Thirty young soccer players (age, 15.9 ± 1.43 years; weight, 65.4 ± 10.84 kg; ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000000452
更新日期:2014-09-01 00:00:00
abstract::Lantis, DJ, Farrell, JW, III, Cantrell, GS, and Larson, RD. Eight weeks of high volume resistance training improves onset of blood lactate in trained individuals. J Strength Cond Res 31(8): 2176-2182, 2017-The purpose of this study was to determine if onset of blood lactate (OBLA) using the fixed at 4 mmol·L method co...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001686
更新日期:2017-08-01 00:00:00
abstract::Naval Special Warfare (NSW) Operators are expected to maintain a high degree of physical readiness requiring continual operational training. The physiological and psychological demands associated with operational training can result in physiological consequences evidenced by hormonal alterations justifying the need fo...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章
doi:10.1519/JSC.0000000000000628
更新日期:2015-01-01 00:00:00
abstract::The purpose of this study was to determine the effect of football equipment and running surface on sprint performance in NCAA Division II football players (n = 68). Players were timed in the 40-yd sprint on an indoor rubberized track (Day 1) and on an outdoor, natural-grass football field (Day 2) wearing either regula...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/R-16934.1
更新日期:2005-11-01 00:00:00
abstract::Inflammatory response and neutrophil functions in players after a futsal match. J Strength Cond Res 26(9): 2507-2514, 2012-Futsal players suffer injuries resulting from muscle fatigue and contact or collision among players. Muscle lesions can be detected by measuring muscle lesion markers such as creatine kinase (CK) ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31823f29b5
更新日期:2012-09-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bcd5fe
更新日期:2009-11-01 00:00:00
abstract::This study investigates the performance effects of a 6-week biweekly anaerobic speed endurance production training among junior elite soccer players. Sixteen junior (age 16.9 ± 0.6 years) elite soccer players were tested in the Yo-Yo Intermittent Recovery test level 2 (IR2), 10-m and 35-m sprints, 7 × 35-m repeated-sp...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31827647bd
更新日期:2013-07-01 00:00:00
abstract::The purpose of the study was to examine the effects of a resistance exercise program on soccer kick biomechanics. Twenty male amateur soccer players were divided in the experimental group (EG) and the control group (CG), each consisting of 10 players. The EG followed a 10-week resistance exercise program mainly for th...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0b013e3182915f21
更新日期:2013-12-01 00:00:00
abstract::The objective of this investigation was to determine whether short-term heavy resistance training (RT) in healthy older men could eliminate deficits in muscle mass and strength (ST) compared with healthy younger men. Seventeen older men (60-71 yr) performed supervised RT for 22 weeks. Before and after RT, measurements...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bf43c8
更新日期:2011-02-01 00:00:00
abstract::Liao, L-R, and Pang, MYC. Effect of whole-body vibration on neuromuscular activation of leg muscles during dynamic exercises in individuals with stroke. J Strength Cond Res 31(7): 1954-1962, 2017-This study examined the leg muscle activity during exposure to different whole-body vibration (WBV) intensities while perfo...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001761
更新日期:2017-07-01 00:00:00
abstract::de Souza, RF, de Matos, DG, Ferreira, ARP, Chilibeck, P, Barros, NdA, de Oliveira, AS, Cercato, LM, da Silva, DS, and Aidar, FJ. Effect of ibuprofen on muscle, hematological and renal function, hydric balance, pain, and performance during intense long-distance running. J Strength Cond Res 34(7): 2076-2083, 2020-The ai...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002502
更新日期:2020-07-01 00:00:00
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
更新日期:2020-10-09 00:00:00
abstract::Beato, M, Madruga-Parera, M, Piqueras-Sanchiz, F, Moreno-Pérez, V, and Romero-Rodriguez, D. Acute effect of eccentric overload exercises on change of direction performance and lower-limb muscle contractile function. J Strength Cond Res XX(X): 000-000, 2019-This study aimed to evaluate the postactivation potentiation (...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003359
更新日期:2019-09-02 00:00:00
abstract::Preparing for the stress of total knee arthroplasty (TKA) surgery by exercise training (prehabilitation) may improve strength and function before surgery and, if effective, has the potential to contribute to postoperative recovery. Subjects with severe osteoarthritis (OA), pain intractable to medicine and scheduled fo...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0b013e318202e431
更新日期:2011-02-01 00:00:00
abstract::Hoffmann, SM, Skinner, TL, van Rosendal, SP, Osborne, MA, Emmerton, LM, and Jenkins, DG. The efficacy of the lactate threshold: A sex-based comparison. J Strength Cond Res 34(11): 3190-3198, 2020-The second lactate threshold (LT2) has previously been associated with endurance performance; however, comparisons between ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002654
更新日期:2020-11-01 00:00:00
abstract::The physiological demands of jockeys during competition remain largely unknown, thereby creating challenges when attempting to prescribe sport-specific nutrition and training guidelines. The purpose of this study was to evaluate the physiological demands and energy requirements of jockeys during flat racing. Oxygen up...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000977
更新日期:2015-11-01 00:00:00
abstract::The facilitative effect of physical activity on age-related decline is well documented. Specifically, it has been found to reduce the risk of dependency. However, physical activity programs for older adults should be carefully designed so that improvements in all aspects of movement and physical capacities are achieve...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bac36a
更新日期:2011-01-01 00:00:00
abstract::The objective of the present study was to investigate the effects of static and dynamic stretching alone and in combination on subsequent agility, sprinting, and jump performance. Eight different stretching protocols: (a) static stretch (SS) to point of discomfort (POD); (b) SS less than POD (SS journal_title:Journal of strength and conditioning research pub_type: 临床试验,杂志文章 doi:10.1519/JSC.0b013e3181aeb181 更新日期:2010-08-01 00:00:00
abstract::Numerous investigations have attested to the efficacy of the National Football League (NFL)-225 test to estimate one repetition maximum (1RM) bench press. However, no studies have assessed the efficacy of the test to track changes in strength across a training program. The purpose of this study was to determine the ac...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000829
更新日期:2015-11-01 00:00:00
abstract::Conservative management of rotator cuff pathology often involves certain therapeutic exercises. Although a major goal of these exercises is to increase strength of the rotator cuff, little empirical evidence supports this assertion. In this study, 34 nonpathologic young adults were pretested using a LIDO Multijoint II...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章
doi:
更新日期:2002-05-01 00:00:00
abstract::Sanders, DJ, Walker, AJ, Prior, KE, Poyssick, AN, and Arent, SM. Training demands and physiological profile of cross-disciplined collegiate female dancers. J Strength Cond Res XX(X): 000-000, 2019-Little is known about the physical demands of high-level dance training. Therefore, the purpose of this study was to inves...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003107
更新日期:2019-03-15 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181d0a55f
更新日期:2010-04-01 00:00:00
abstract::We examined the effects of active dehydration by exercise in a hot, humid environment on anaerobic muscular power using a test-retest (euhydrated and dehydrated) design. Seven subjects (age, 27.1 +/- 4.6 years; mass, 86.4 +/- 9.5 kg) performed upper and lower body Wingate anaerobic tests prior to and after a 1.5-hour ...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章
doi:10.1519/JSC.0b013e3181635ba5
更新日期:2008-03-01 00:00:00
abstract::In ball game sports, players demand agility, which is a quick and adequate reaction to various changing stimuli. We developed a "successive choice reaction test" that evaluates such agility. This test requires subjects to be exposed to successive stimuli. Hence, it is very important to select appropriate stimulus temp...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31825c2f23
更新日期:2013-03-01 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
pub_type: 杂志文章
doi:
更新日期:2002-08-01 00:00:00