Relative activity of abdominal muscles during commonly prescribed strengthening exercises.

abstract：:McClelland, JM, Godek, SF, Chlad, PS, Feairheller, DL, and Morrison, KE. Effects of cardiovascular fitness and body composition on maximal core temperature in collegiate football players during preseason. J Strength Cond Res 32(6): 1662-1670, 2018-This study evaluated the effects of body mass index (BMI) and aerobic f...

journal_title：Journal of strength and conditioning research

authors： McClelland JM,Godek SF,Chlad PS,Feairheller DL,Morrison KE

更新日期：2018-06-01 00:00:00

abstract：:The purpose of this study was to investigate the discriminative ability of rebound jump squat force-time and power-time measures in differentiating speed performance and competition level in elite and elite junior rugby union players. Forty professional rugby union players performed 3 rebound jump squats with an exter...

journal_title：Journal of strength and conditioning research

authors： Hansen KT,Cronin JB,Pickering SL,Douglas L

更新日期：2011-09-01 00:00:00

abstract：:Sañudo, B, Rueda, D, del Pozo-Cruz, B, de Hoyo, M, and Carrasco, L. Validation of a video analysis software package for quantifying movement velocity in resistance exercises. J Strength Cond Res 30(10): 2934-2941, 2016-The aim of this study was to establish the validity of a video analysis software package in measurin...

journal_title：Journal of strength and conditioning research

authors： Sañudo B,Rueda D,Pozo-Cruz BD,de Hoyo M,Carrasco L

更新日期：2016-10-01 00:00:00

abstract：:We tested the null hypothesis that creatine monohydrate loading (20 g per day for 7 days, n = 18) would not alter resistance exercise performance, isometric strength, or in vivo contractile properties of the quadriceps femoris muscle compared with loading with placebo (n = 13) in resistance-trained subjects. For the e...

journal_title：Journal of strength and conditioning research

authors： Stevenson SW,Dudley GA

更新日期：2001-11-01 00:00:00

abstract：:Mireille, M, Johan, P, Matthieu, L, and Pieter, V. A retrospective analysis of the national youth teams in volleyball: Were they always faster, taller, and stronger? J Strength Cond Res XX(X): 000-000, 2020-Although there are numerous studies comparing the characteristics of young and adult volleyball players of diffe...

journal_title：Journal of strength and conditioning research

authors： Mostaert M,Pion J,Lenoir M,Vansteenkiste P

更新日期：2020-10-09 00:00:00

abstract：:The purpose of this study was to determine the effect of football equipment and running surface on sprint performance in NCAA Division II football players (n = 68). Players were timed in the 40-yd sprint on an indoor rubberized track (Day 1) and on an outdoor, natural-grass football field (Day 2) wearing either regula...

journal_title：Journal of strength and conditioning research

authors： Brechue WF,Mayhew JL,Piper FC

更新日期：2005-11-01 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

authors： Laurent C,Baudry S,Duchateau J

更新日期：2020-06-01 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

authors： Fry AC,Smith JC,Schilling BK

更新日期：2003-11-01 00:00:00

abstract：:To investigate the positional physical requirements necessary to be drafted into the National Football League (NFL), data from the annual NFL combine over the years 2005-2009 were examined. Only those players invited to the combine and subsequently drafted in the same year (n = 1,136) were included in the study. Data ...

journal_title：Journal of strength and conditioning research

authors： Robbins DW

更新日期：2011-10-01 00:00:00

abstract：:Gymnastics is a closed-skill sport, and the repeatability of a specific technique is accepted as a valuable indicator of a performer's level of expertise. The circle movement, defined as a gyrating movement in the horizontal plane, is a key component of all contemporary pommel horse exercises. The aims of this study w...

journal_title：Journal of strength and conditioning research

authors： Baudry L,Seifert L,Leroy D

更新日期：2008-03-01 00:00:00

abstract：:The objective of this study was to determine the methods of quantification for training and performance, which would be the most appropriate for modeling the responses to long-term training in cadet and junior judo athletes. For this, 10 young male judo athletes (15.9 ± 1.3 years, 64.9 ± 10.3 kg, and 170.8 ± 5.4 cm) c...

journal_title：Journal of strength and conditioning research

authors： Agostinho MF,Philippe AG,Marcolino GS,Pereira ER,Busso T,Candau RB,Franchini E

更新日期：2015-06-01 00:00:00

abstract：:Muscular power is considered one of the main determinants of athletic performance that require the explosive production of force such as throwing and jumping. Various training methods have been suggested to improve muscular power and dynamic athletic performance. Although various acute training valuables (e.g., sets, ...

journal_title：Journal of strength and conditioning research

authors： Kawamori N,Haff GG

更新日期：2004-08-01 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：:Mosier, EM, Fry, AC, and Lane, MT. Kinetic contributions of the upper limbs during countermovement. J Strength Cond Res 33(8): 2066-2073, 2019-This study examined the kinetic contributions of the upper extremities during countermovement vertical jumps (CMVJs) while using arm swing (AS) or no arm swing (NAS) conditions...

journal_title：Journal of strength and conditioning research

authors： Mosier EM,Fry AC,Lane MT

更新日期：2019-08-01 00:00:00

abstract：:Talpey, SW, Young, WB, and Beseler, B. Effect of instructions on selected jump squat variables. J Strength Cond Res 30(9): 2508-2513, 2016-The purpose of this study was to compare 2 instructions on the performance of selected variables in a jump squat (JS) exercise. The second purpose was to determine the relationship...

journal_title：Journal of strength and conditioning research

authors： Talpey SW,Young WB,Beseler B

更新日期：2016-09-01 00:00:00

abstract：:Zourdos, MC, Goldsmith, JA, Helms, ER, Trepeck, C, Halle, JL, Mendez, KM, Cooke, DM, Haischer, MH, Sousa, CA, Klemp, A, and Byrnes, RK. Proximity to failure and total repetitions performed in a set influences accuracy of intraset repetitions in reserve-based rating of perceived exertion. J Strength Cond Res XX(X): 000...

journal_title：Journal of strength and conditioning research

authors： Zourdos MC,Goldsmith JA,Helms ER,Trepeck C,Halle JL,Mendez KM,Cooke DM,Haischer MH,Sousa CA,Klemp A,Byrnes RK

更新日期：2019-02-07 00:00:00

abstract：:The aim of the study was to evaluate the heat stress of Finnish male soldiers (N = 20, age 22.0 ± 2.5 years, body mass 78.8 ± 11.5 kg, and height 180.2 ± 5.6 cm) during their 4-month deployment in a hot environment and to find out the effects on physical performance and body composition. The troops moved from 2.5° C (...

journal_title：Journal of strength and conditioning research

authors： Rintamäki H,Kyröläinen H,Santtila M,Mäntysaari M,Simonen R,Torpo H,Mäkinen T,Rissanen S,Lindholm H

更新日期：2012-07-01 00:00:00

abstract：:The purpose of this study was to examine the effects of a 6-week, periodized squat training program, with or without whole-body low-frequency vibration (WBLFV), on jump performance. Males ranged in age from 20 to 30 years and were randomized into groups that did squat training with (SQTV, n = 13) or without (SQT, n = ...

journal_title：Journal of strength and conditioning research

authors： Lamont HS,Cramer JT,Bemben DA,Shehab RL,Anderson MA,Bemben MG

更新日期：2008-11-01 00:00:00

abstract：ABSTRACT:Hughes, LJ, Peiffer, JJ, and Scott, B. Estimating repetitions in reserve in four commonly used resistance exercises. J Strength Cond Res XX(X): 000-000, 2020-This study aimed to determine the accuracy and reliability of estimating repetitions in reserve (RIR) across the squat, bench press, overhead press, and ...

journal_title：Journal of strength and conditioning research

authors： Hughes LJ,Peiffer JJ,Scott B

更新日期：2020-12-17 00:00:00

abstract：:Stretching prior to vigorous physical activity has been shown to decrease high-force muscular performance, but little is known about the effect of stretching on speed and accuracy movements. Serving percentage and radar measurements of ball speed were studied to examine the acute effect of stretching on tennis serve p...

journal_title：Journal of strength and conditioning research

authors： Knudson DV,Noffal GJ,Bahamonde RE,Bauer JA,Blackwell JR

更新日期：2004-08-01 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

authors： Willwacher S,Fischer KM,Rohr E,Trudeau MB,Hamill J,Brüggemann GP

更新日期：2020-02-04 00:00:00

abstract：:Sanders, GJ, Boos, B, Rhodes, J, Peacock, CA, Kollock, RO, and Scheadler, CM. Variability of competition-based caloric expenditure and relative heart rates in National Collegiate Athletic Association Division I women's basketball. J Strength Cond Res XX(X): 000-000, 2019-Basketball athletes frequently engage in high i...

journal_title：Journal of strength and conditioning research

authors： Sanders GJ,Boos B,Rhodes J,Peacock CA,Kollock RO,Scheadler CM

更新日期：2019-12-27 00:00:00

abstract：:Exercise has been promoted in an attempt to correct postural deviations, such as excessive lumbar lordosis, scoliosis, kyphosis, and abducted scapulae. One of the assumed causes of these conditions is a weak and lengthened agonist muscle group combined with a strong and tight antagonist muscle group. Strengthening and...

journal_title：Journal of strength and conditioning research

authors： Hrysomallis C,Goodman C

更新日期：2001-08-01 00:00:00

abstract：:In practice, the Bruce protocol is the most commonly used treadmill protocol to assess maximal oxygen consumption (V(.-)O2max). It has been suggested that a running protocol (e.g., Astrand) may elicit a comparatively higher V(.-)O2max and different cardiorespiratory responses when applied to moderately trained runners...

journal_title：Journal of strength and conditioning research

authors： Miller GS,Dougherty PJ,Green JS,Crouse SF

更新日期：2007-11-01 00:00:00

abstract：:The purpose was to compare male and female police students exercise and physical performances at the beginning and the end of a 3-year police education. Two hundred thirty-five subjects answered the survey about exercise and 85 subjects (58 men: age = 23.7 ± 2.8 years, body mass = 82.1 ± 7.8 kg, height = 1.83 ± 0.06 m...

journal_title：Journal of strength and conditioning research

authors： Lagestad P,van den Tillaar R

更新日期：2014-05-01 00:00:00

abstract：:The purpose of this study was to analyze the acute effect of static stretching on the performance of multiple sets in the bench press (BP) exercise. Fifteen men (26.2 ± 0.7 years, 72.4 ± 1.3 kg, 1.78 ± 0.1 m, 22.8 ± 0.3 kg·m) performed 4 sets of the BP exercise at 80% of 1 repetition maximum until concentric failure, ...

journal_title：Journal of strength and conditioning research

authors： Ribeiro AS,Romanzini M,Dias DF,Ohara D,da Silva DR,Achour A Jr,Avelar A,Cyrino ES

更新日期：2014-04-01 00:00:00

abstract：:Walking is a physical activity able to maintain and improve aerobic fitness. This activity can easily be performed in all seasons both outdoors and indoors, but when it is performed in its natural environment, the use of specific equipment is required. In particular, it has been demonstrated that the use of trekking b...

journal_title：Journal of strength and conditioning research

authors： Fattorini L,Pittiglio G,Federico B,Pallicca A,Bernardi M,Rodio A

更新日期：2012-10-01 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：:Cardio kickboxing classes have become a popular form of exercise to enhance fitness. This study surveyed kickboxing participants and instructors to ascertain the severity, type, and incidence of injuries sustained while performing cardio kickboxing exercise. The respondents consisted of 77.4% instructors and 29.3% par...

journal_title：Journal of strength and conditioning research

authors： Romaine LJ,Davis SE,Casebolt K,Harrison KA

更新日期：2003-08-01 00:00:00

abstract：:The purpose of this study was to determine the effect of circuit training directed toward motion and action velocity over the sprint-agility and anaerobic endurance. A total of 32 healthy male physical education students with a mean age of 23.92 +/- 1.51 years were randomly allocated into a circuit training group (CTG...

journal_title：Journal of strength and conditioning research

authors： Taşkin H

更新日期：2009-09-01 00:00:00