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 using a traditional fixed-time laboratory protocol. A second aim was to verify the longitudinal validity by examining the relationships between the changes in LTs obtained with the 2 protocols. To determine the LTs, 12 well-trained male middle and long distance amateur and competitive runners training from 4 to 7 d·wk(-1) (age 25 [5] years, body mass 66 [5] kg, estimated VO(2)max 58.6 [4.9] ml·min(-1)·kg(-1), SD in parentheses) performed in 2 separate sessions an incremental running test on the field starting at 12 km·h(-1) and increasing the speed by 1 km·h(-1) every 1,200 m (FixD test) and an incremental treadmill test in the laboratory starting at 12 km·h(-1) and increasing the speed by 1 km·h(-1) every 6 minutes. The 2 tests were repeated after 6-12 weeks. A nearly perfect relationship was found between the running speeds at LTs determined with the 2 protocols (r = 0.95 [CI95% 0.83-0.99]; p < 0.001). The correlations between longitudinal changes in LTs were very large (0.78 [0.32-0.95; p = 0.006]). The heart rate corresponding to the LTs were not significantly different. This study showed the criterion and longitudinal validity of LTs determined with a protocol consisting of fixed-distance intervals performed in field setting.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
La Torre A,Fiorella P,Santos TM,Faina M,Mauri C,Impellizzeri FMdoi
10.1519/JSC.0b013e31821bc313subject
Has Abstractpub_date
2012-01-01 00:00:00pages
146-51issue
1eissn
1064-8011issn
1533-4287journal_volume
26pub_type
杂志文章abstract：:Toffan, A, Alexander, MJL, and Peeler, J. Comparison of the technique of the football quarterback pass between high school and university athletes. J Strength Cond Res 32(9): 2474-2497, 2018-The purpose of the study was to compare the most effective joint movements, segment velocities, and body positions to perform th...
journal_title：Journal of strength and conditioning research
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更新日期：2018-09-01 00:00:00
abstract：:The use of RSA/RCOD index indicates the repeated change-of-direction (RCOD) performance relative to the repeated-sprint ability (RSA) and provides a standardized approach to prioritize training needs for RSA and RCOD. To compare the RSA/RCOD index among different age groups, RSA and RCOD were measured from 20 under-16...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2015-10-01 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
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更新日期：2017-10-01 00:00:00
abstract：:The deadlift exercise is commonly performed to develop strength and power, and to train the lower-body and erector spinae muscle groups. However, little is known about the acute training effects of a hexagonal barbell vs. a straight barbell when performing deadlifts. Therefore, the purpose of this study was to examine...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2016-05-01 00:00:00
abstract：:Integrated technology (IT), which includes accelerometers, global positioning systems (GPSs), and heart rate monitors, has been used frequently in public health. More recently, IT data have been used in sports settings to assess training and performance demands. However, the impact of IT in sports settings is yet to b...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,评审
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更新日期：2014-02-01 00:00:00
abstract：:The Smith machine (SM) (vertical motion of bar on fixed path; fixed-form exercise) and free weights (FWs) (free-form path) are commonly used strength training modes. Exercisers may need to alternate between types of equipment, depending on testing, training, rehabilitation, and/or the exercisers' goals. The purposes o...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/14433.1
更新日期：2005-02-01 00:00:00
abstract：:This study describes the work-rate profile of Italian high-level soccer referees (N = 33). The referees were examined during official games (n = 96) of the 1992-1996 first division Italian championships (Series A). Subjects were all experienced, top-level referees enrolled in the Commissione Arbitri Nazionali and offi...
journal_title：Journal of strength and conditioning research
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更新日期：2001-05-01 00:00:00
abstract：:Team handball is an Olympic sport played professionally in many European countries. Nevertheless, a scientific knowledge regarding women's elite team handball demands is limited. Thus, the purpose of this article was to review a series of studies (n = 33) on physical characteristics, physiological attributes, physical...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,评审
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更新日期：2013-06-01 00:00:00
abstract：:Young, WB and Murray, MP. Reliability of a field test of defending and attacking agility in Australian football and relationships to reactive strength. J Strength Cond Res 31(2): 509-516, 2017-Defending and attacking agility tests for Australian football do not exist, and it is unknown whether any physical qualities c...
journal_title：Journal of strength and conditioning research
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更新日期：2017-02-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000003815
更新日期：2020-09-16 00:00:00
abstract：:Athletes often need to both jump high and get off the ground quickly, but getting off the ground quickly can decrease the vertical ground reaction force (VGRF) impulse, impeding jump height. Energy stored in the muscle-tendon complex during the stretch-shortening cycle (SSC) may mitigate the effects of short ground co...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000980
更新日期：2015-11-01 00:00:00
abstract：:Coratella, G, Beato, M, Milanese, C, Longo, S, Limonta, E, Rampichini, S, Cè, E, Bisconti, AV, Schena, F, and Esposito, F. Specific adaptations in performance and muscle architecture after weighted jump-squat vs. body mass squat jump training in recreational soccer players. J Strength Cond Res 32(4): 921-929, 2018-The...
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：2018-04-01 00:00:00
abstract：:There is some debate in the literature as to whether strength deficits exist at the ankle in individuals with chronic ankle instability (CAI). Additionally, there is evidence to suggest that knee and hip performance is altered in those with CAI. Therefore, the purpose of this study was to determine whether CAI is asso...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e31818efbb2
更新日期：2009-03-01 00:00:00
abstract：:Post, BK, Dawes, JJ, and Lockie, RG. Relationships between tests of strength, power, and speed and the 75-yard pursuit run. J Strength Cond Res XX(X): 000-000, 2019-The 75-yard pursuit run (75 PR) was designed to simulate a foot pursuit for law enforcement officers (LEOs). Currently, there has been no analysis of cont...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000003398
更新日期：2019-11-27 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2019-07-22 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
pub_type： 杂志文章
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更新日期：2020-08-01 00:00:00
abstract：:The objectives of this study were to examine the use of the analgesics for the relief of exercise-associated pain (EAP) and to examine personal and/or exercise characteristics that might potentially predict such use in recreationally trained college-aged individuals. Recreationally trained college-aged students (N = 2...
journal_title：Journal of strength and conditioning research
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更新日期：2014-01-01 00:00:00
abstract：:Previous studies have suggested that short-term whole-body vibration (WBV) training produces neuromuscular improvement similar to that of power and strength training. However, it is yet to be determined whether short-term WBV exposure produces neurogenic enhancement for power, speed, and agility. The purpose of this s...
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 aimed to compare the effects of distinct temporal organizations of strength and power training loads on strength, power, and speed improvements. Sixty soldiers with at least 1 year in the army volunteered for this study. The subjects were divided into 4 groups: control group (CG: n = 15; age: 20.18 ± 0.72 y...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2013-01-01 00:00:00
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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：2012-03-01 00:00:00
abstract：:The aim of this study was to examine the concurrent validity of 2 portable systems for vertical jump (VJ) assessment under field conditions. The VJ flight times assessed using an optical mat (Optojump) and an accelerometer-based (Myotest) system were compared with that of a force platform. The flight times recorded du...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e31825dbcc5
更新日期：2013-03-01 00:00:00
abstract：:Weakley, JJS, Till, K, Read, DB, Phibbs, PJ, Roe, G, Darrall-Jones, J, and Jones, BL. The effects of superset configuration on kinetic, kinematic, and perceived exertion in the barbell bench press. J Strength Cond Res 34(1): 65-72, 2020-Training that is efficient and effective is of great importance to an athlete. One...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0000000000002179
更新日期：2020-01-01 00:00:00
abstract：:Resistance training is used to develop muscular strength and hypertrophy. Large muscle forces, in relation to the muscle's maximum force-generating ability, are required to elicit these adaptations. Previous biomechanical analyses of multi-joint resistance exercises provide estimates of muscle force but not relative m...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e31826791a7
更新日期：2012-10-01 00:00:00
abstract：:Caplan, N, Rogers, R, Parr, MK, and Hayes, PR. The effect of proprioceptive neuromuscular facilitation and static stretch training on running mechanics. J Strength Cond Res 23(4): 1175-1180, 2009-There is a long-standing belief that increased range of movement (RoM) at the hip or knee will improve running mechanics; h...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,随机对照试验
doi：10.1519/JSC.0b013e318199d6f6
更新日期：2009-07-01 00:00:00
abstract：:This is a longitudinal descriptive study whose purpose is to assess the physical state of male volleyball players competing at the international level, comparing their jump heights during 3 different seasons. National team sample relies upon trainer decisions, and it was different every season. There were 23, 15, and ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e3181db9f2e
更新日期：2011-06-01 00:00:00
abstract：:Judo is a combat sport in which the athletes attempt to hold and control their adversary through gripping techniques (kumi-kata) to apply opportune throwing techniques (nage-waza). Twelve male judo athletes, representing national teams, were recruited to investigate the changes in the maximal isometric strength in bot...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318238ebac
更新日期：2012-07-01 00:00:00
abstract：:We evaluated a submaximal and maximal version of the Yo-Yo intermittent recovery level 1 children's (YYIR1C) test and the Andersen test for fitness and maximal heart rate assessments of children aged 6-10 years. Two repetitions of the YYIR1C and Andersen tests were carried out within 1 week by 6- to 7-year-olds and 8-...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318270fd0b
更新日期：2013-06-01 00:00:00
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 purpose of this study was to implement an outdoor circuit training program as an addition to standard training and to examine its effects on physical fitness and injury incidence rate in Swiss Army recruits. An intervention group (standard and additional training, n = 134, 21.0 ± 1.1 years, 74.1 ± 10.0 kg, and 1.7...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318245bebe
更新日期：2012-12-01 00:00:00
abstract：:There are many tests available to coaches and practitioners who seek to identify a point during exercise when excess lactate is being produced or hyperventilation stimulated as a result of metabolic acidosis. This investigation sought to determine the relationship between performance and the first occurrence of excess...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e31826549ef
更新日期：2013-05-01 00:00:00
