Abstract：
:The objective of this study was to estimate the oxygen uptake (&OV0312;O2) in elite youth soccer players using measures of heart rate (HR) and ratings of perceived exertion (RPEs). Forty-six regional-level male youth soccer players (∼13 years) participated in 2 VO(2)max tests. Data for HR, RPE, and VO(2) were simultaneously recorded during the VO(2)max tests with incremental running speed. Regression equations were derived from the first VO(2)max test. Two weeks later, all players performed the same VO(2)max test to validate the developed regression equations. There were no significant differences between the estimated values in the first test and actual values in the second test. During the continuous endurance exercise, the combination of percentage of maximal HR (%HRmax) and RPE measures gave similar estimation of %VO(2)max (R = 83%) in comparison to %HRmax alone (R = 81%). However, the estimation of VO(2) using combined %HRmax and RPE was not satisfactory (R = 45-46%). Therefore, the use of %HRmax (without RPE) to estimate %VO(2)max could be a useful tool in young soccer players during field-based continuous endurance testing and training. Specifically, coaches can use the %HRmax to quantify internal loads (%VO(2)max) and subsequently implement continuous endurance training at appropriate intensities. Furthermore, it seems that RPE is more useful as a measure of internal load during noncontinuous (e.g., intermittent and sprint) exercises but not to estimate %VO(2)max during continuous aerobic exercise (R = 59%).
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Wong del P,Carling C,Chaouachi A,Dellal A,Castagna C,Chamari K,Behm DGdoi
10.1519/JSC.0b013e3181e4ffe6subject
Has Abstractpub_date
2011-07-01 00:00:00pages
1983-8issue
7eissn
1064-8011issn
1533-4287journal_volume
25pub_type
杂志文章abstract：:Strength augmentation has been demonstrated in resistance-trained men subsequent to 4 days of training abstinence. However, this phenomenon was exhibited in an unusual circumstance in which the exercise test (seated heel raise) primarily involved an isolated skeletal muscle (soleus) that is normally comprised almost e...
journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：2004-11-01 00:00:00
abstract：:This study compared conventional, complex, and contrast protocols on peak power (PP) output. Static vs. dynamic contractions were also manipulated to determine the effect of these confounding variables. Eighteen recreationally trained men [age, 21.1 ± 3.3 years; body mass, 81.7 ± 15.9 kg; height, 182.8 ± 6.2 cm; 5 rep...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2014-02-01 00:00:00
abstract：:We examined the effects of 18 weeks of strength and high-intensity training on key sport performance measures of elite male water polo (WP) players. Twenty-seven players were randomly assigned to 2 groups, control (in-water training only) and strength group, (strength training sessions [twice per week] + in-water trai...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0000000000000240
更新日期：2014-04-01 00:00:00
abstract：:A variety of training approaches have been shown to improve running economy in well-trained athletes. However, there is a paucity of data exploring lower-body determinants that may affect running economy and account for differences that may exist between genders. Sixty-three male and female distance runners were asses...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000267
更新日期：2014-05-01 00:00:00
abstract：:Concussion in football athletes is certainly more prevalent and has potentially serious outcomes. With current concerns and increasing return-to-play issues, additional assessment focus is needed. Division 1 college football athletes, from 18 to 20.9 years (n = 177; age, 19.7 ± 1.2 years; height, 182.3 ± 4.5 cm; weigh...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001124
更新日期：2016-02-01 00:00:00
abstract：:The purpose of this study is to examine the effects of different volume and training surfaces during a short-term plyometric training program on neuromuscular performance. Twenty-nine subjects were randomly assigned to 4 groups: control group (CG, n = 5), moderate volume group (MVG, n = 9, 780 jumps), moderate volume ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0b013e318280c9e9
更新日期：2013-10-01 00:00:00
abstract：:Canino, MC, Foulis, SA, Zambraski, EJ, Cohen, BS, Redmond, JE, Hauret, KG, Frykman, PN, and Sharp, MA. U.S. Army Physical Demands Study: Differences in physical fitness and occupational task performance between trainees and active duty soldiers. J Strength Cond Res 33(7): 1864-1870, 2019-U.S. Army initial entry traini...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000002681
更新日期：2019-07-01 00:00:00
abstract：:Bergstrom, HC, Housh, TJ, Cochrane-Snyman, KC, Jenkins, NDM, Byrd, MT, Switalla, JR, Schmidt, RJ, and Johnson, GO. A model for identifying intensity zones above critical velocity. J Strength Cond Res 31(12): 3260-3265, 2017-The purpose of this study was to describe the V[Combining Dot Above]O2 responses relative to V[...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001769
更新日期：2017-12-01 00:00:00
abstract：:The back squat is a traditional resistance training exercise, whereas the resisted sled exercise is a relatively new resistance exercise. However, as there are no studies comparing muscle activation between the exercises, the objective of this study was to examine activity of leg and trunk muscles for both exercises. ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000697
更新日期：2014-12-01 00:00:00
abstract：:Nikolaidis, PT and Knechtle, B. Performance in 100-km ultramarathoners-At which age, it reaches its peak? J Strength Cond Res 34(5): 1409-1415, 2020-The number of those participating in 100-km ultramarathon has increased over the past years; however, we have limited knowledge about performance trends in this sport, an...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000002539
更新日期：2020-05-01 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
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318295d534
更新日期：2014-01-01 00:00:00
abstract：:Chan, APC, Yang, Y, Wong, FKW, Yam, MCH, Wong, DP, and Song, W-F. Reduction of physiological strain under a hot and humid environment by a hybrid cooling vest. J Strength Cond Res 33(5): 1429-1436, 2019-Cooling treatment is regarded as one of good practices to provide safe training conditions to athletic trainers in t...
journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章
doi：10.1519/JSC.0000000000001837
更新日期：2019-05-01 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
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更新日期：2019-09-01 00:00:00
abstract：:This study investigated the relationship between punching acceleration and selected strength and power variables in 19 professional karate athletes from the Brazilian National Team (9 men and 10 women; age, 23 ± 3 years; height, 1.71 ± 0.09 m; and body mass [BM], 67.34 ± 13.44 kg). Punching acceleration was assessed u...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0000000000000329
更新日期：2014-07-01 00:00:00
abstract：:Cotter, JA, Garver, MJ, Dinyer, TK, Fairman, CM, and Focht, BC. Ratings of perceived exertion during acute resistance exercise performed at imposed and self-selected loads in recreationally trained women. J Strength Cond Res 31(8): 2313-2318, 2017-Resistance exercise (RE) is commonly used to elicit skeletal muscle ada...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2017-08-01 00:00:00
abstract：:Malone, S and Collins, K. Relationship between individualized training impulse and aerobic fitness measures in Hurling players across a training period. J Strength Cond Res 30(11): 3140-3145, 2016-The current study examined the association between individual internal training load (individualized training impulse, iTR...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001386
更新日期：2016-11-01 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
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更新日期：2017-12-01 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
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0000000000000703
更新日期：2015-04-01 00:00:00
abstract：:Few studies have compared single-bundle (SB) and double-bundle (DB) anterior cruciate ligament reconstruction (ACLR) in the knee joint during activities involving change-of-direction maneuvers and knee rotation. This study examined whether the type of ACLR contributes to postphysiotherapy outcomes, with an emphasis on...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2015-02-01 00:00:00
abstract：:The purpose of this study was to determine the effects of a 12-week strength training program on movement time (MT) on fencers of national level. Twelve male fencers were randomly divided into 2 groups: the control group (CG: N = 6; age, 22.3 ± 8.1 years) and the treatment group (TG: N = 6; age, 24.8 ± 7.2 years). 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.0000000000000581
更新日期：2014-12-01 00:00:00
abstract：:The purpose of this study was to examine lower extremity kinematics following implementation of the Sportsmetrics Warm-Up for Injury Prevention and Performance (WIPP) training program. The hypothesis was that there would be no difference in landing mechanics between 2 groups of female youth soccer players (9-11 years ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/R-17585.1
更新日期：2006-05-01 00:00:00
abstract：:The purpose of this study was to analyze the influence of exercise type, set configuration, and relative intensity load on relationship between 1 repetition maximum (1RM) and maximum number of repetitions (MNR). Thirteen male subjects, experienced in resistance training, were tested in bench press and biceps curl for ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e3181d8eabe
更新日期：2010-06-01 00:00:00
abstract：:This study aimed to examine the relationships between muscle power output using the stretch-shortening cycle (SSC) and eccentric maximum strength under elbow flexion. Eighteen young adult males pulled up a constant light load (2 kg) by ballistic elbow flexion under the following two preliminary conditions: 1) the stat...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2008-11-01 00:00:00
abstract：:van Gogh, MJ, Wallace, LK, and Coutts, AJ. Positional demands and physical activity profiles of netball. J Strength Cond Res 34(5): 1422-1430, 2020-The aim of this study was to examine the activity profiles and physiological demands of netball. Eleven representative youth netball players participated in this study. Gl...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2020-05-01 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
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更新日期：2011-04-01 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 aim of this study was to examine the validity of vertical jump (VJ) performance variables in elite-standard male and female Italian soccer players. One hundred eighteen national team soccer players (n = 56 men and n = 62 women) were tested for countermovement (CMJ) and squatting jump (SJ) heights. The stretch-shor...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e3182610999
更新日期：2013-04-01 00:00:00
abstract：:Pote, L and Christie, CJ. Strength and conditioning practices of University and high school level cricket coaches: a South African context. J Strength Cond Res 30(12): 3464-3470, 2016-Although the sport of cricket is well established, the strength and conditioning practices of cricket players are not well known. There...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001432
更新日期：2016-12-01 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：:Currently, variables predictive of vertical jumping performance can account for only part of its total variability. A potential additional source of variation called explosive strength deficit (ESD) was described in 1995 by Zatsiorsky (Science and Practice of Strength Training. Champaign, IL: Human Kinetics, 1995. pp....
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：
更新日期：2002-02-01 00:00:00
