Abstract:
:Madruga-Parera, M, Bishop, C, Beato, M, Fort-Vanmeerhaeghe, A, Gonzalo-Skok, O, and Romero-Rodríguez, D. Relationship between inter-limb asymmetries and speed and change of direction speed in youth handball players. J Strength Cond Res XX(X): 000-000, 2019-The aims of the present study were to quantify interlimb asymmetry from jumping, change of direction speed (CODS), and iso-inertial tests and to establish the association between those asymmetry scores and performance during speed and CODS tests in youth handball athletes. Twenty-six youth handball players (age: 16.2 ± 0.9 years) volunteered to participate in this study and performed single-leg countermovement jumps, single-leg broad jumps, single-leg lateral jumps, CODS tests at 180° (CODS180) and 90° (CODS90), change of direction actions with iso-inertial overload (crossover step [CRO] and lateral shuffle step), and a 20-m sprint test. Excellent intraclass correlation coefficient (ICC) values were found for all tests (ICC = 0.96-1.00) with the exception of the dominant limb during the CODS90 test (ICC = 0.69). Interlimb asymmetry scores ranged from 3.66 to 12.67%. Iso-inertial asymmetry values were higher than those found during jumping tasks (9.8-12.7% vs. 3.66-8.76%). Spearman's r correlations showed significant relationships between CRO asymmetry and CODS90 performance on both limbs (r = 0.48-0.51; p < 0.05) and CODS180 (r = 0.41-0.51; p < 0.05) and a sprint test (r = 0.46; p < 0.05). These results show the test-specific nature of asymmetries in youth handball players, with iso-inertial device and CODS deficit presenting the greatest magnitude of asymmetries. Furthermore, interlimb differences during iso-inertial device (CRO) were associated with reduced CODS and sprint performance. These results suggest that the use of iso-inertial devices for the detection of interlimb asymmetry may be more effective than the total time during traditional CODS tests and that larger imbalances are associated with reduced athletic performance in youth handball players.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Madruga-Parera M,Bishop C,Beato M,Fort-Vanmeerhaeghe A,Gonzalo-Skok O,Romero-Rodríguez Ddoi
10.1519/JSC.0000000000003328subject
Has Abstractpub_date
2019-09-26 00:00:00eissn
1064-8011issn
1533-4287pub_type
杂志文章abstract::The purpose of this study was to determine whether inspiratory muscle fatigue (IMF) affects the muscle activity of the latissimus dorsi and pectoralis major during maximal arms only front crawl swimming. Eight collegiate swimmers were recruited to perform 2 maximal 20-second arms only front crawl sprints in a swimming...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000379
更新日期:2014-08-01 00:00:00
abstract::The purpose of this study was to compare different methods to identify the lactate threshold (LT) and glucose threshold (GT) on resistance exercise for individuals with type 2 diabetes. Nine men with type 2 diabetes (47.2 +/- 12.4 years, 87.6 +/- 20.0 kg, 174.9 +/- 5.9 cm, and 22.4 +/- 7.2% body fat) performed increme...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31816eb47c
更新日期:2008-07-01 00:00:00
abstract::In order to compare the cardiovascular and energy expenditure demands of "Super Slow" (SST) and traditional (TT) resistance training 7 resistance-trained young men (24.3 +/- 3.8 years) had energy expenditure (using indirect calorimetry) and heart rate evaluated during and for 15 minutes after a workout on separate day...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/1533-4287(2003)017<0076:comahr>2.0.co;2
更新日期:2003-02-01 00:00:00
abstract:ABSTRACT:Merrigan, JJ and Martin, JR. Is the OUTPUT sports unit reliable and valid when estimating back squat and bench press concentric velocity? J Strength Cond Res XX(X): 000-000, 2020-This study evaluated the reliability and concurrent validity of the OUTPUT sports inertial unit to measure concentric velocity of fr...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003782
更新日期:2020-12-16 00:00:00
abstract::Willwacher, S, Fischer, KM, Rohr, E, Trudeau, MB, Hamill, J, and Brüggemann, G-P. Surface stiffness and footwear affect the loading stimulus for lower extremity muscles when running. J Strength Cond Res XX(X): 000-000, 2020-Running in minimal footwear or barefoot can improve foot muscle strength. Muscles spanning the ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003410
更新日期:2020-02-04 00:00:00
abstract::Mendez, AI, Miramonti, AA, Gillen, ZM, McKay, BD, Leutzinger, TJ, and Cramer, JT. Stature, body mass, and BMI in high school american football players: Appropriate determinants of obesity prevalence? J Strength Cond Res 32(11): 3119-3126, 2018-The purpose of this study was to evaluate stature (HT), mass (BM), body mas...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002347
更新日期:2018-11-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000497
更新日期:2014-10-01 00:00:00
abstract::The purpose of this study was to document the physical profiles of players on the 2011 New York Giants (NYG) team and to make comparisons with the historical literature on previous National Football League (NFL) player profiles. In this study, height, body mass (BM), body fat percentage (BF%) using skinfold measuremen...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000303
更新日期:2014-01-01 00:00:00
abstract::Muscle power is a major neuromuscular factor affecting motor function and independence in patients with Parkinson's disease (PD), and it is commonly targeted using high-speed exercise. This study examined the changes in velocities (Vpp) and percent loads (%1RMpp) at peak power and load-velocity (L-V) and load-power (L...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000001730
更新日期:2017-10-01 00:00:00
abstract::The purpose of this study was to examine the effects of an overreach and taper on measures of muscle architecture, jumping, and throwing performance in Division I collegiate throwers preparing for conference championships. Six collegiate track and field throwers (3 hammer, 2 discus, 1 javelin) trained for 12 weeks usi...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章
doi:10.1519/JSC.0000000000001619
更新日期:2017-10-01 00:00:00
abstract::The purpose of this study was to investigate the effects of carbohydrate ingestion on force output and time to exhaustion using single leg static contractions superimposed with brief periods of electromyostimulation. Six trained male subjects participated in a randomized, counterbalanced, double-blind study. The subje...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0b013e318234ec0e
更新日期:2012-06-01 00:00:00
abstract::The aim of this study was to investigate the current practice of complex training using a lower body combination of exercises. It was hypothesized that a bout of heavy resistance exercise (HRE), as typically used in complex training, would lead to enhanced performance (in the form of counter-movement [CMJ] and drop [D...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章
doi:10.1519/1533-4287(2003)017<0694:abaota>2.0.co;2
更新日期:2003-11-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e318192b7c1
更新日期:2009-07-01 00:00:00
abstract::Moeskops, S, Oliver, JL, Read, PJ, Cronin, JB, Myer, GD, Haff, GG, and Lloyd, RS. Within- and between-session reliability of the isometric midthigh pull in young female athletes. J Strength Cond Res 32(7): 1892-1901, 2018-To investigate the within- and between-session reliability of the isometric midthigh pull (IMTP) ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002566
更新日期:2018-07-01 00:00:00
abstract::This study assessed the correlation between lumbopelvic control during a single-leg balancing task and in-game pitching performance in Minor-League baseball pitchers. Seventy-five healthy professional baseball pitchers performed a standing lumbopelvic control test during the last week of spring training for the 2008 a...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31820f5075
更新日期:2011-08-01 00:00:00
abstract::This study investigated the effects of a 6-week combined electromyostimulation (EMS) and gymnastic training program on muscle strength and vertical jump performance of prepubertal gymnasts. Sixteen young women gymnasts (age 12.4 ± 1.2 yrs) participated in this study, with 8 in the EMS group and the remaining 8 as cont...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bac451
更新日期:2011-02-01 00:00:00
abstract::The aim of this study was to analyze the physiological responses to a tap dance choreography and to compare with those observed during a maximal treadmill exercise test, in tap dancers. Eight women (19.6 +/- 2.4 years; 162.3 +/- 4.4 cm; 54.0 +/- 2.3 kg; 20.5 +/- 1.4 kg.m; and 5.1 +/- 2.6 years of tap dance training) w...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181ddae99
更新日期:2010-07-01 00:00:00
abstract::Throwing carries an inherent risk of injury that worsens in the presence of arm fatigue. The purpose of this study was to identify markers that could facilitate the early detection of this type of fatigue, by comparing the response to bouts of throwing-specific and running-based exercise. Thirteen elite junior male ba...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000000395
更新日期:2014-08-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31825bb492
更新日期:2012-07-01 00:00:00
abstract::Andrade, DM, Fernandes, G, Miranda, R, Reis Coimbra, D, and Bara Filho, MG. Training load and recovery in volleyball during a competitive season. J Strength Cond Res XX(X): 000-000, 2018-The objective of this study was to analyze the training load (TL) and recovery status (RS) of a volleyball team in different periods...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002837
更新日期:2018-10-12 00:00:00
abstract::Laurent, C, Baudry, S, and Duchateau, J. Comparison of plyometric training with two different jumping techniques on Achilles tendon properties and jump performances. J Strength Cond Res 34(6): 1503-1510, 2020-This study compared the influence of 10 weeks of plyometric training with 2 different jumping techniques on Ac...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000003604
更新日期:2020-06-01 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
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bb0d92
更新日期:2011-01-01 00:00:00
abstract::The objective of this study was to determine the effect of 2 different warm-up protocols on the neuromuscular system of well-trained middle distance runners. Seven runners performed 2 different warm-up protocols, one of which included slow running, stretching, and bounding and sprinting exercises, while the other cons...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/R-18055.1
更新日期:2007-05-01 00:00:00
abstract::Lawrence, MA, Ostrowski, SJ, Leib, DJ, and Carlson, LA. Effect of unstable loads on stabilizing muscles and bar motion during the bench press. J Strength Cond Res XX(X): 000-000, 2018-Unstable loads are anecdotally used to increase muscle stabilizer strength and utilization; however, there is little evidence to suppor...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002788
更新日期:2018-08-21 00:00:00
abstract::Hoffman, JR, Hoffman, MW, Zelicha, H, Gepner, Y, Willoughby, DS, Feinstein, U, and Ostfeld, I. The Effect of 2-Weeks of Inactivated Probiotic Bacillus coagulans on Endocrine, Inflammatory and Performance Responses During Self-Defense Training in Soldiers. J Strength Cond Res 33(9): 2330-2337, 2019-The effect of 2 week...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000003265
更新日期:2019-09-01 00:00:00
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 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
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000985
更新日期:2015-11-01 00:00:00
abstract::The purpose of this study was to determine a resting interval between countermovement jumps (i.e., volleyball spikes) that allows the maintenance of maximal jumping performance. Ten male volleyball players (1.85 +/- 0.05 m, 77.2 +/- 10.6 kg, 21.6 +/- 5.3 years) performed 6 experimental jumping sessions. In the first a...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e318173932a
更新日期:2008-07-01 00:00:00
abstract::Previous research suggests high impact forces generated during landings contribute to noncontact anterior cruciate ligament (ACL) injuries. In women, neuromuscular differences appear to modify the ability to dissipate landing forces when compared to men. This study examined peak vertical impact forces (F(p)) and rate ...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1519/R-13473.1
更新日期:2004-11-01 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
pub_type: 杂志文章
doi:10.1519/R-20316.1
更新日期:2007-11-01 00:00:00