Acute and Long-Term Comparison of Fixed vs. Self-Selected Rest Interval Between Sets on Upper-Body Strength.

abstract：:The purpose of this study was to determine the relative electromyographic (EMG) activity of the upper and lower rectus abdominis and the external oblique muscles during 5 commonly performed abdominal strengthening exercises. Twenty-five healthy subjects participated in the study. EMG data were collected under isometri...

journal_title：Journal of strength and conditioning research

authors： Willett GM,Hyde JE,Uhrlaub MB,Wendel CL,Karst GM

更新日期：2001-11-01 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

authors： Wong del P,Hjelde GH,Cheng CF,Ngo JK

更新日期：2015-10-01 00:00:00

abstract：:Farinatti, P, Paes, L, Harris, EA, Lopes, GO, and Borges, JP. A simple model to identify risk of sarcopenia and physical disability in HIV-infected patients. J Strength Cond Res 31(9): 2542-2551, 2017-Early detection of sarcopenia might help preventing muscle loss and disability in HIV-infected patients. This study pr...

journal_title：Journal of strength and conditioning research

authors： Farinatti P,Paes L,Harris EA,Lopes GO,Borges JP

更新日期：2017-09-01 00:00:00

abstract：:The purpose of the study was to determine whether muscle contraction type (concentric [CON] or eccentric [ECC]) or loading (relative or absolute) has a greater impact on the perceptual and metabolic responses to conventional resistance exercise. Additionally, overall effort, pain sensations, and specific pain descript...

journal_title：Journal of strength and conditioning research

authors： Hollander DB,Kilpatrick MW,Ramadan ZG,Reeves GV,Francois M,Blakeney A,Castracane VD,Kraemer RR

更新日期：2008-07-01 00:00:00

abstract：:The 5-repetition sit-to-stand test (FRSTST) is a widely used measure of functional strength, particularly among older adults. The purpose of this review was to summarize the findings of research using the intraclass correlation coefficient (ICC) to describe the test-retest reliability of the FRSTST. A search of 3 elec...

journal_title：Journal of strength and conditioning research

authors： Bohannon RW

更新日期：2011-11-01 00:00:00

abstract：:The purpose of this study was to compare the effects of an experimental versus traditional military run training on 2-mile run ability in Army Reserve Officer Training Corps (ROTC) cadets. Fifty college-aged cadets were randomly placed into two groups and trained for four weeks with either an experimental running prog...

journal_title：Journal of strength and conditioning research

authors： Stone BL,Heishman AD,Campbell JA

更新日期：2017-07-31 00:00:00

abstract：:This study analyzed the effect of an acute static stretching bout on the time to exhaustion (Tlim) at power output corresponding to VO2max. Eleven physically active male subjects (age 22.3+/-2.8 years, VO2max 2.7+/-0.5 L.min) completed an incremental cycle ergometer test, 2 muscle strength tests, and 2 maximal tests t...

journal_title：Journal of strength and conditioning research

authors： Samogin Lopes FA,Menegon EM,Franchini E,Tricoli V,de M Bertuzzi RC

更新日期：2010-06-01 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

authors： Chaouachi A,Castagna C,Chtara M,Brughelli M,Turki O,Galy O,Chamari K,Behm DG

更新日期：2010-08-01 00:00:00

abstract：:We examined whether elbow position affects the handgrip strength in adolescents. The criterion-related validity and reliability of the Jamar, DynEx, and TKK dynamometers were also analyzed. A total of 66 adolescents aged 12 to16 years performed the handgrip strength test with the elbow extended and flexed at 90 degree...

journal_title：Journal of strength and conditioning research

authors： España-Romero V,Ortega FB,Vicente-Rodríguez G,Artero EG,Rey JP,Ruiz JR

更新日期：2010-01-01 00:00:00

abstract：:Ouergui, I, Houcine, N, Marzouki, H, Davis, P, Franchini, E, Gmada, N, and Bouhlel, E. Physiological responses and time-motion analysis of small combat games in kickboxing: impact of ring size and number of within-round sparring partners. J Strength Cond Res 31(7): 1840-1846, 2017-The study aimed to investigate the ph...

journal_title：Journal of strength and conditioning research

authors： Ouergui I,Houcine N,Marzouki H,Davis P,Franchini E,Gmada N,Bouhlel E

更新日期：2017-07-01 00:00:00

abstract：:Weakley, J, Chalkley, D, Johnston, R, García-Ramos, A, Townshend, A, Dorrell, H, Pearson, M, Morrison, M, and Cole, M. Criterion validity, and interunit and between-day reliability of the FLEX for measuring barbell velocity during commonly used resistance training exercises. J Strength Cond Res 34(6): 1519-1524, 2020-...

journal_title：Journal of strength and conditioning research

authors： Weakley J,Chalkley D,Johnston R,García-Ramos A,Townshend A,Dorrell H,Pearson M,Morrison M,Cole M

更新日期：2020-06-01 00:00:00

abstract：:Glassbrook, DJ, Helms, ER, Brown, SR, and Storey, AG. A review of the biomechanical differences between the high-bar and low-bar back-squat. J Strength Cond Res 31(9): 2618-2634, 2017-The back-squat is a common exercise in strength and conditioning for a variety of sports. It is widely regarded as a fundamental moveme...

journal_title：Journal of strength and conditioning research

authors： Glassbrook DJ,Helms ER,Brown SR,Storey AG

更新日期：2017-09-01 00:00:00

abstract：:Kreutzer, A, Martinez, CA, Kreutzer, M, Stone, JD, Mitchell, JB, and Oliver, JM. Effect of ACTN3 polymorphism on self-reported running times. J Strength Cond Res 33(1): 80-88, 2019-This investigation examined the effect of ACTN3 genotype on self-reported distance running personal records (PRs). Of 94 (n = 94) recreati...

journal_title：Journal of strength and conditioning research

authors： Kreutzer A,Martinez CA,Kreutzer M,Stone JD,Mitchell JB,Oliver JM

更新日期：2019-01-01 00:00:00

abstract：:The purpose of this study was to determine the effect of below-knee compression stockings on running performance in men runners. Using a within-group study design, 21 moderately trained athletes (39.3 +/- 10.9 years) without lower-leg abnormities were randomly assigned to perform a stepwise treadmill test up to a volu...

journal_title：Journal of strength and conditioning research

authors： Kemmler W,von Stengel S,Köckritz C,Mayhew J,Wassermann A,Zapf J

更新日期：2009-01-01 00:00:00

abstract：:Numerous studies have shown that stretching routines can induce strength and force deficits, although the amount of stretching needed to cause these deficits remains unclear. Therefore, the purpose of the study was to examine the relationship between varying amounts of acute static stretching on jumping performance. B...

journal_title：Journal of strength and conditioning research

authors： Robbins JW,Scheuermann BW

更新日期：2008-05-01 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

authors： García-Pinillos F,Martínez-Amat A,Hita-Contreras F,Martínez-López EJ,Latorre-Román PA

更新日期：2014-09-01 00:00:00

abstract：:Circulating creatine kinase (CK) levels are often monitored as an indirect biomarker of muscle damage after resistive exercise. The purpose of the present investigation was to evaluate whether capillary whole-blood sampling, a simpler and less invasive method for obtaining a venous blood sample, would allow for a reli...

journal_title：Journal of strength and conditioning research

authors： Knoblauch MA,O'Connor DP,Clarke MS

更新日期：2010-12-01 00:00:00

abstract：:Neuromuscular activation during and chronic adaptation from exercise are innately linked and both can vary along a muscle's length. During high-force and high-speed exercise, intramuscular hypertrophy follows set patterns that provide the greatest biomechanical advantages. However, it is unknown if muscle activity as ...

journal_title：Journal of strength and conditioning research

authors： Earp JE,Stucchi DT,DeMartini JK,Roti MW

更新日期：2016-06-01 00:00:00

abstract：:Dugdale, JH, Hunter, AM, Di Virgilio, TG, Macgregor, LJ, and Hamilton, DL. Influence of the "Slingshot" bench press training aid on bench press kinematics and neuromuscular activity in competitive powerlifters. J Strength Cond Res 33(2): 327-336, 2019-This study examined the acute effects of the "Slingshot" (SS) on be...

journal_title：Journal of strength and conditioning research

authors： Dugdale JH,Hunter AM,Di Virgilio TG,Macgregor LJ,Hamilton DL

更新日期：2019-02-01 00:00:00

abstract：:This study evaluated the effects of 4 different weekly stretching protocols on the rate of gain and decline in hamstring flexibility over an 8-week period, across sex. Using a randomized single-blind design, 53 healthy subjects aged 18-46 years were assigned to 1 of 4 stretching protocols or a control group. The stret...

journal_title：Journal of strength and conditioning research

authors： Cipriani DJ,Terry ME,Haines MA,Tabibnia AP,Lyssanova O

更新日期：2012-08-01 00:00:00

abstract：:The purpose of this study was to determine the reliability and validity of regulating exercise intensity by ratings of perceived exertion in step dance sessions. Ten male college-aged students voluntarily participated in 2 step dance sessions for 45 minutes at 70-80% of their heart rate (HR) reserves with a 1-week int...

journal_title：Journal of strength and conditioning research

authors： Ozkan A,Kin-Isler A

更新日期：2007-02-01 00:00:00

abstract：:The purpose of this study was to investigate differences in fat-free mass and thicknesses of various muscles among judo athletes of different performance levels. The subjects were 69 male judo athletes of 3 different performance levels. Group A was composed of athletes who participated in the Olympic Games or Asian Ga...

journal_title：Journal of strength and conditioning research

authors： Kubo J,Chishaki T,Nakamura N,Muramatsu T,Yamamoto Y,Ito M,Saitou H,Kukidome T

更新日期：2006-08-01 00:00:00

abstract：:This study aimed to (a) assess the reliability of the functional movement screening (FMS) protocol and (b) to establish changes in both FMS and tests of physical performance throughout a season. The reliability of the FMS components (12 in total) was assessed through a nonparametric statistical approach, based on 2 tr...

journal_title：Journal of strength and conditioning research

authors： Waldron M,Gray A,Worsfold P,Twist C

更新日期：2016-04-01 00:00:00

abstract：:Periodization is known to improve training adaptations but the most effective periodization approach for muscular strength development for a wide variety of populations is yet to be determined. This systematic review and meta-analysis examined all studies directly comparing linear and undulating periodized resistance ...

journal_title：Journal of strength and conditioning research

authors： Harries SK,Lubans DR,Callister R

更新日期：2015-04-01 00:00:00

abstract：:The purpose of this study was to analyze multiple effects of an extended interval training (EIT) protocol on countermovement jump (CMJ) and handgrip strength in endurance athletes and to determine the relationship between fatigue and potentiation. Thirty experienced sub-elite male long-distance runners (age = 28.26 ± ...

journal_title：Journal of strength and conditioning research

authors： García-Pinillos F,Soto-Hermoso VM,Latorre-Román PA

更新日期：2015-01-01 00:00:00

abstract：:The purpose of this study was to compare percent body fat (%BF) estimated by air displacement plethysmography (ADP) and leg-to-leg bioelectrical impedance analysis (LBIA) with hydrostatic weighing (HW) in a group (n = 25) of NCAA Division III collegiate wrestlers. Body composition was assessed during the preseason wre...

journal_title：Journal of strength and conditioning research

authors： Dixon CB,Deitrick RW,Pierce JR,Cutrufello PT,Drapeau LL

更新日期：2005-02-01 00:00:00

abstract：:The purpose of this study was to compare the peak force and force curve characteristics during a traditional bench press (BP) and a ballistic bench throw (BT). Eight (age = 21.0 +/- 2.3 years, height = 182.3 +/- 7.4 cm, body mass = 85.9 +/- 5.5 kg) semi-professional rugby league players with resistance and power train...

journal_title：Journal of strength and conditioning research

authors： Clark RA,Bryant AL,Humphries B

更新日期：2008-11-01 00:00:00

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 asymm...

journal_title：Journal of strength and conditioning research

authors： Madruga-Parera M,Bishop C,Beato M,Fort-Vanmeerhaeghe A,Gonzalo-Skok O,Romero-Rodríguez D

更新日期：2019-09-26 00:00:00

abstract：:Over the past century, increases in both longevity and the number of older adults in the U.S.A. have given rise to greater numbers of functionally limited and disabled older adults. This has resulted in a decline in the quality of life of our elderly population, as well as an increased burden on our health care system...

journal_title：Journal of strength and conditioning research

authors： Sayers SP

更新日期：2007-05-01 00:00:00

abstract：:During resistance training protocols, people are often encouraged to target the scapular stabilizing musculature (middle and lower trapezius and serratus anterior) while minimizing shoulder prime mover activation (upper trapezius and large glenohumeral muscles) in their training regime, especially in overhead athletes...

journal_title：Journal of strength and conditioning research

authors： De Mey K,Danneels L,Cagnie B,Borms D,TʼJonck Z,Van Damme E,Cools AM

更新日期：2014-06-01 00:00:00