Abstract:
:The changes in daily countermovement jump (CMJ) and activity profile of male rugby 7 players during the 3-week period immediately before international competition were examined. Velocity and distance data were measured via a 10-Hz global positioning system from 12 international-level athletes on 11 ± 1 occasions. Work rate (m∣min), total distance (TD), high-intensity distance (HID, >5.00 m·s(-1)), high-intensity work rate (meter per minute, >5.00 m·s(-1)), tackle number, and repeated high-intensity efforts (RHIEs) defined the activity profile along with session duration (minutes). CMJ performance was measured via percentage change from an individual best using a 5-jump protocol. A one-way repeated-measures ANOVA was selected to determine any change in CMJ performance across the training mesocycle. Effect sizes (ESs) were calculated to determine the magnitude of effects. No significant differences were noted in CMJ percentage change (p = 0.27). Significant differences were noted in work rate (p = 0.001, ES [range across the 3-week mesocycle]: 0.13-0.68), HID work rate (p = 0.001, ES: 0.35-0.75), RHIEs count (p = 0.002, ES: 0.03-0.61), tackle count (p < 0.001, ES: 0.13-0.90), HID (p < 0.003, ES: -0.32 to 0.32), and training duration (p < 0.001, ES: 0.37-1.36). No significant differences were noted in HI accelerations, player load, or TD. Rugby sevens players maintain CMJ performance throughout the final preparation period when the training load is managed.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Gibson NE,Boyd AJ,Murray AMdoi
10.1519/JSC.0000000000001156subject
Has Abstractpub_date
2016-03-01 00:00:00pages
777-83issue
3eissn
1064-8011issn
1533-4287journal_volume
30pub_type
杂志文章abstract::Phillips, J, Diggin, D, King, DL, and Sforzo, GA. Effect of varying self-myofascial release duration on subsequent athletic performance. J Strength Cond Res XX(X): 000-000, 2018-Self-myofascial release (SMR) treatments can enhance joint range-of-motion and restore movement function. The effects of different SMR durati...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002751
更新日期:2018-07-17 00:00:00
abstract::The aim of this study was to examine the criterion validity of 2 lactate thresholds (LTs, intensity corresponding to 1 mmol·L(-1) above baseline; onset of blood lactate accumulation, intensity at 4 mmol·L(-1)) determined with a fixed-distance incremental field test by assessing their correlation with those obtained us...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31821bc313
更新日期:2012-01-01 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::Gago, P, Zoellner, A, Cezar, J, and Ekblom, MM. Post activation potentiation and concentric contraction performance: effects on rate of torque development, neuromuscular efficiency and tensile properties. J Strength Cond Res 34(6): 1600-1608, 2020-This study investigated how a 6-second maximal voluntary isometric cont...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002427
更新日期:2020-06-01 00:00:00
abstract::The aim of this study was to compare the power outputs of the intermittent critical power (CPi) with the intermittent maximal lactate steady state (MLSSi) and to compare the physiological and perceptual responses exercising at CPi and MLSSi. Ten subjects performed intermittent trials on a cycle ergometer to determine ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181e83a36
更新日期:2011-07-01 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
pub_type: 杂志文章
doi:10.1519/1533-4287(2003)017<0629:eokpoh>2.0.co;2
更新日期:2003-11-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181b3dfa1
更新日期:2009-09-01 00:00:00
abstract::Ball, R and Weidman, D. Analysis of USA Powerlifting federation data from January 1, 2012-June 11, 2016. J Strength Cond Res 32(7): 1843-1851, 2018-In this article, we report 47,913 officially judged contestant results from powerlifting matches from January 1, 2012 to June 11, 2016 for the USA Powerlifting Federation....
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002103
更新日期:2018-07-01 00:00:00
abstract::The ergogenic effect of L-arginine on an endurance-trained population is not well studied. The few studies that have investigated L-arginine on this population have not been conducted in a laboratory setting or measured aerobic variables. The purpose of the current study is to determine if 28 days of L-arginine supple...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0b013e3181c6a14d
更新日期:2011-03-01 00:00:00
abstract::The purpose of this study was to evaluate the contribution of the 3 main energy pathways during a 30-second elliptical all-out test (EAT) compared with the Wingate all-out test (WAT). Participants were 12 male team sport players (age, 20.3 ± 1.8 years; body mass, 74.8 ± 12.4 kg; height, 176.0 ± 9.10 cm; body fat, 12.1...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3182a20f77
更新日期:2014-03-01 00:00:00
abstract::Sixteen semiprofessional Australian football players performed running bouts at incremental velocities of 40, 60, 80, and 100% of their maximum velocity on a Woodway nonmotorized force treadmill. As running velocity increased from 40 to 60%, peak vertical and peak horizontal forces increased by 14.3% (effect size [ES]...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181c64308
更新日期:2011-04-01 00:00:00
abstract::Haug, WB, Drinkwater, EJ, Cicero, NJ, Barthell, JA, and Chapman, DW. The impact of dry-land sprint start training on the short track speed skating start. J Strength Cond Res 33(2): 544-548, 2019-This investigation sought to determine the effects of dry-land sprint start training on short track speed skating (STSS) sta...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001892
更新日期:2019-02-01 00:00:00
abstract::Squatting is a common strength training exercise used for rehabilitation, fitness training, and in preparation for competition. Knowledge about the loading and the motion of the back during the squat exercise is crucial to avoid overuse or injury. The aim of this study was the measurement and comparison of the kinemat...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3182736034
更新日期:2013-06-01 00:00:00
abstract::Fernandez-Fernandez, J, Loturco, I, Pereira, LA, Del Coso, J, Areces, F, Gallo-Salazar, C, and Sanz-Rivas, D. Change of direction performance in young tennis players: a comparative study between sexes and age-categories. J Strength Cond Res XX(X): 000-000, 2019-The aim of this study was to examine the differences in l...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003484
更新日期:2020-01-09 00:00:00
abstract::Physiological, anthropometric, and power profiling data were retrospectively analyzed from 4 elite taekwondo athletes from the Australian National Olympic team 9 weeks from Olympic departure. Power profiling data were collected weekly throughout the 9-week period. Anthropometric skinfolds generated a lean mass index (...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31820d9f3f
更新日期:2011-10-01 00:00:00
abstract::Jiménez-Alonso, A, García-Ramos, A, Cepero, M, Miras-Moreno, S, Rojas, FJ, and Pérez-Castilla, A. Velocity performance feedback during the free-weight bench press testing procedure: an effective strategy to increase the reliability and one repetition maximum accuracy prediction. J Strength Cond Res XX(X): 000-000, 202...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003609
更新日期:2020-04-10 00:00:00
abstract::The purpose of this study was to test whether a long duration of aerobic high-intensity interval training is more effective than shorter intervals at a higher intensity in highly trained endurance athletes. The sample comprised of 12 male and 9 female, national-level, junior cross-country skiers (age, 17.5 ± 0.4 years...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3182752f08
更新日期:2013-07-01 00:00:00
abstract::Waldman, HS, Heatherly, AJ, Waddell, AF, Krings, BM, and O'Neal, EK. Five-kilometer time trial reliability of a nonmotorized treadmill and comparison of physiological and perceptual responses vs. a motorized treadmill. J Strength Cond Res 32(5): 1455-1461, 2018-This study examined the reliability of running performanc...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001993
更新日期:2018-05-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181a00cd3
更新日期:2009-05-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1519/R-19095.1
更新日期:2007-05-01 00:00:00
abstract::This study reports the average and SD of professional baseball players' cardiorespiratory endurance, maximum oxygen consumption, oxygen consumption during anaerobic threshold, maximum oxygen consumption of anaerobic threshold %, maximum heart rate, and heart rate of anaerobic threshold. We also report the comparison b...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000527
更新日期:2014-11-01 00:00:00
abstract::Ortiz Jr, RO, Sinclair Elder, AJ, Elder, CL, and Dawes, JJ. A systematic review on the effectiveness of active recovery interventions on athletic performance of professional-, collegiate-, and competitive-level adult athletes. J Strength Cond Res 33(8): 2275-2287, 2019-Active recovery (AR) is a popular approach to enh...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002589
更新日期:2019-08-01 00:00:00
abstract::Krajewski, K, LeFavi, R, and Riemann, B. A biomechanical analysis of the effects of bouncing the barbell in the conventional deadlift. J Strength Cond Res 33(7S): S70-S77, 2019-The purpose of this study is to analyze biomechanical differences between the bounce and pause styles of deadlifting. Twenty physically active...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002545
更新日期:2019-07-01 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::Devlin, BL, Kingsley, M, Leveritt, MD, and Belski, R. Seasonal changes in soccer players' body composition and dietary intake practices. J Strength Cond Res 31(12): 3319-3326, 2017-The aims of this study were 2-fold: to determine seasonal changes in dietary intake and body composition in elite soccer players and to ev...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001751
更新日期:2017-12-01 00:00:00
abstract::O'Connor, LM and Vozenilek, JA. Is it the athlete or the equipment? An analysis of the top swim performances from 1990 to 2010. J Strength Cond Res 25(12): 3239-3241, 2011-Forty-three world record swims were recorded at the 2009 Fédération Internationale de Natation (FINA) World Championship meet in Rome. Of the 20 FI...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3182392c5f
更新日期:2011-12-01 00:00:00
abstract::Glass, SC, and Albert, RW. Compensatory muscle activation during unstable overhead squat using a water-filled training tube. J Strength Cond Res 32(5): 1230-1237, 2018-The purpose of this study was to assess compensatory muscle activation of core and support muscle during an overhead squat using a water-filled trainin...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002000
更新日期:2018-05-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000000461
更新日期:2014-10-01 00:00:00
abstract::Turgut, E, Cinar-Medeni, O, Colakoglu, FF, and Baltaci, G. "Ballistic Six" upper-extremity plyometric training for the pediatric volleyball players. J Strength Cond Res 33(5): 1305-1310, 2019-The Ballistic Six exercise program includes commonly used upper-body exercises, and the program is recommended for overhead thr...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002060
更新日期:2019-05-01 00:00:00
abstract::The purpose of this study was to investigate the relationship that age has on factors affecting running economy (RE) in competitive distance runners. Fifty-one male and female subelite distance runners (Young [Y]: 18-39 years [n = 18]; Master [M]: 40-59 years [n = 22]; and Older [O]: 60-older [n = 11]) were measured f...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e318212dd0e
更新日期:2011-11-01 00:00:00