keyword
MENU ▼
Read by QxMD icon Read
search

"Squat jump"

keyword
https://www.readbyqxmd.com/read/29670536/multi-directional-repeated-sprint-is-a-valid-and-reliable-test-for-assessment-of-junior-handball-players
#1
Amin Daneshfar, Daniel E Gahreman, Majid S Koozehchian, Sadegh Amani Shalamzari, Mozhgan Hassanzadeh Sablouei, Thomas Rosemann, Beat Knechtle, Pantelis T Nikolaidis
The aim of the present study was to examine the validity and reliability of a 10 × (6 × 5 m) multi-directional repeated sprint ability test (RSM) in elite young team handball (TH) players. Participants were members of the Iranian national team ( n = 20, age 16.4 ± 0.7 years, weight 82.5 ± 5.5 kg, height 184.8 ± 4.6 cm, body fat 15.4 ± 4.3%). The validity of RSM was tested against a 10 × (15 + 15 m) repeated sprint ability test (RSA), Yo-Yo Intermittent Recovery test Level 1 (Yo-Yo IR1), squat jump (SJ) and countermovement jump (CMJ)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29666769/joint-level-energetics-differentiate-isoinertial-from-speed-power-resistance-training-a-bayesian-analysis
#2
Bernard X W Liew, Christopher C Drovandi, Samuel Clifford, Justin W L Keogh, Susan Morris, Kevin Netto
Background: There is convincing evidence for the benefits of resistance training on vertical jump improvements, but little evidence to guide optimal training prescription. The inability to detect small between modality effects may partially reflect the use of ANOVA statistics. This study represents the results of a sub-study from a larger project investigating the effects of two resistance training methods on load carriage running energetics. Bayesian statistics were used to compare the effectiveness of isoinertial resistance against speed-power training to change countermovement jump (CMJ) and squat jump (SJ) height, and joint energetics...
2018: PeerJ
https://www.readbyqxmd.com/read/29625360/correlation-between-quadriceps-and-hamstrings-inter-limb-strength-asymmetry-with-change-of-direction-and-sprint-in-u21-elite-soccer-players
#3
Giuseppe Coratella, Marco Beato, Federico Schena
The aim of this study was to investigate the relationship between in quadriceps and hamstrings inter-limb strength asymmetry and change of direction, sprinting and jumping abilities in U21 elite soccer players. Twenty-seven soccer players volunteered for this study. Isokinetic quadriceps and hamstrings peak torque was measured at high and low angular velocities, both in concentric and eccentric modalities. Performance in agility T-test, 20 + 20 m shuttle-test, 10 m and 30 m sprint, squat jump (SJ) and counter-movement jump (CMJ), were measured...
April 3, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29577974/repetitions-to-failure-versus-not-to-failure-during-concurrent-training-in-healthy-elderly-men-a-randomized-clinical-trial
#4
Larissa Xavier da Silva Neves, Juliana Lopes Teodoro, Erik Menger, Pedro Lopez, Rafael Grazioli, Juliano Farinha, Kelly Moraes, Martim Bottaro, Ronei Silveira Pinto, Mikel Izquierdo, Eduardo Lusa Cadore
This randomized clinical trial compared the neuromuscular adaptations induced by concurrent training (CT) performed with repetitions to concentric failure and not to failure in elderly men. Fifty-two individuals (66.2 ± 5.2 years) completed the pre- and post-measurements and were divided into three groups: repetitions to failure (RFG, n = 17); repetitions not to failure (NFG, n = 20); and repetitions not to failure with total volume equalized to RFG (ENFG, n = 15). Participants were assessed in isometric knee extension peak torque (PTiso ), maximal strength (1RM) in the leg press (LP) and knee extension (KE) exercises, quadriceps femoris muscle thickness (QF MT), specific tension, rate of torque development (RTD) at 50, 100 and 250 ms, countermovement jump (CMJ) and squat jump (SJ) performance, as well as maximal neuromuscular activity (EMGmax ) of the vastus lateralis (VL) and rectus femoris (RF) muscles...
March 22, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29570574/sequencing-effects-of-plyometric-training-applied-before-or-after-regular-soccer-training-on-measures-of-physical-fitness-in-young-players
#5
Rodrigo Ramirez-Campillo, Cristian Alvarez, Paulo Gentil, Irineu Loturco, Javier Sanchez-Sanchez, Mikel Izquierdo, Jason Moran, Fabio Y Nakamura, Helmi Chaabene, Urs Granacher
To compare the effects of short-term (i.e., 7 week) plyometric training applied before (PJT-B) or after (PJT-A) soccer practice on components of physical fitness in young soccer players, a single-blind randomized controlled trial was conducted. Post-pubertal boys aged 17.0±0.5 years were allocated to three groups: PJT-B (n=12), PJT-A (n=14), and control (CON; n=12). The outcome measures included tests to evaluate 20-m speed, standing long jump [SLJ], squat jump [SJ], countermovement jump [CMJ], and drop jump [DJ], 20-m multistage shuttle running speed [MSSRT], and Illinois change of direction speed [ICODT]...
March 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29543700/variability-of-plyometric-and-ballistic-exercise-technique-maintains-jump-performance
#6
Phillip T Chandler, Matthew Greig, John J McMahon
The aim of this study was to investigate changes in vertical jump technique over the course of a training session. Twelve plyometric and ballistic exercise trained male athletes (age = 23.4 ± 4.6 years, body mass = 78.7 ± 18.8 kg, height = 177.1 ± 9.0 cm) performed three sets of 10 repetitions of drop (DJ), rebound (RJ) and squat jumps (SJ). Each exercise was analysed from touch down to peak joint flexion and peak joint flexion to take-off. SJ where analysed from peak joint flexion to take-off only. Jump height, flexion and extension time and range of motion, and instantaneous angles of the ankle, knee and hip joints were measured...
March 13, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29533359/methodological-considerations-on-the-relationship-between-the-1-500-m-rowing-ergometer-performance-and-vertical-jump-in-national-level-adolescent-rowers
#7
Hugo Maciejewski, Abderrahmane Rahmani, Frédéric Chorin, Julien Lardy, Pierre Samozino, Sébastien Ratel
The purpose of the present study was to investigate whether three different approaches for evaluating squat jump performance were correlated to rowing ergometer performance in elite adolescent rowers. Fourteen young male competitive rowers (15.3 ± 0.6 years), who took part in the French rowing national championships, performed a 1,500-m all-out rowing ergometer performance (P1500) and a squat jump (SJ) test. The performance in SJ was determined by calculating the jump height (HSJ in cm), a jump index (ISJ = HSJ · body mass · gravity, in J) and the mean power output (PSJ in W) from the Samozino et al...
March 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29489714/effects-of-combined-balance-and-plyometric-training-on-athletic-performance-in-female-basketball-players
#8
Ichrak Bouteraa, Yassine Negra, Roy J Shephard, Mohamed Souhaiel Chelly
The purpose of this study was to examine the effect of 8 weeks combined balance and plyometric training on the physical fitness of female adolescent basketball players. Twenty six healthy regional-level players were randomly assigned to either an experimental group (E; n = 16, age = 16.4 ± 0.5) or a control group (C; n = 10, age = 16.5 ± 0.5). C maintained their normal basketball training schedule, whereas for 8 weeks E replaced a part of their standard regimen by biweekly combined training sessions. Testing before and after training included the Squat Jump (SJ), Countermovement Jump (CMJ), Drop Jump (DJ), 5, 10 and 20-m sprints, Stork Balance Test (SBT), Y-Balance Test (YBT) and Modified Illinois Change of Direction Test (MICODT)...
February 27, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29481454/the-effects-of-myofascial-trigger-point-release-on-the-power-and-force-production-in-the-lower-limb-kinetic-chain
#9
Frank Devereux, Brian O'Rourke, Paul J Byrne, Damien Byrne, Sharon Kinsella
The purpose of this study was to firstly investigate the effects of treating latent myofascial trigger points (MTrPs) in the lower limb kinetic chain with respect to performance during sporting actions, as opposed to the traditional goal of pain management with active MTrPs. The second aim was to investigate the effects of dry needling (DN) on performance parameters over time to establish treatment timeframe guidelines prior to performance. Forty male athletes were assigned to four groups; rectus femoris DN (group 1), medial gastrocnemius DN (group 2), rectus femoris and medial gastrocnemius DN (group 3) and no DN (group 4)...
February 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29481446/relationship-between-change-of-direction-speed-and-power-in-male-and-female-national-olympic-team-handball-athletes
#10
Lucas A Pereira, Sophia Nimphius, Ronaldo Kobal, Katia Kitamura, Luiz A L Turisco, Rita C Orsi, César Cs Cal Abad, Irineu Loturco
The aims of this study were to (1) assess the relationship between selected speed-power related abilities (determined by 20-m sprint, unloaded countermovement and squat jumps [CMJ and SJ] and loaded jump squat [JS]) and performance in two distinct change of direction (COD) protocols (Zigzag and T-Test), and (2) determine the magnitude of difference between female and male Brazilian National Olympic Team handball athletes. Fifteen male and twenty-three female elite handball athletes volunteered to perform the following assessments: SJ and CMJ; Zigzag and T-Test; 20-m sprint with 5-, 10-, and 20-m splits, and mean propulsive power (MPP) in JS...
February 22, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29474465/strength-improvements-through-occlusal-splints-the-effects-of-different-lower-jaw-positions-on-maximal-isometric-force-production-and-performance-in-different-jumping-types
#11
Christian Maurer, Sebastian Heller, Jil-Julia Sure, Daniel Fuchs, Christoph Mickel, Eileen M Wanke, David A Groneberg, Daniela Ohlendorf
OBJECTIVE: The influence of the jaw position on postural control, body posture, walking and running pattern has been reported in the literature. All these movements have in common that a relatively small, but well controlled muscle activation is required. The induced effects on motor output through changed jaw positions have been small. Therefore, it has been questioned if it could still be observed in maximal muscle activation. METHOD: Twenty-three healthy, mid age recreational runners (mean age = 34...
2018: PloS One
https://www.readbyqxmd.com/read/29472742/effects-of-high-intensity-interval-training-on-body-composition-aerobic-and-anaerobic-performance-and-plasma-lipids-in-overweight-obese-and-normal-weight-young-men
#12
Nejmeddine Ouerghi, Mohamed Kacem Ben Fradj, Ikram Bezrati, Marwa Khammassi, Moncef Feki, Naziha Kaabachi, Anissa Bouassida
To examine the effects of short high-intensity interval training (HIIT) on body composition, physical performance and plasma lipids in overweight/obese compared to normal-weight young men. Nine overweight/obese and nine normal-weight men (control group) aged 17 to 20 years underwent a HIIT programme three times per week for eight weeks. Body composition, indices of aerobic [maximal aerobic velocity (MAV) and maximal oxygen uptake (VO2max )] and anaerobic [squat jump (SJ), counter-movement jump (CMJ), five-jump test (FJT), 10-m and 30-m sprint] performances, as well as fasting plasma lipids, were assessed in the two groups at PRE and POST HIIT...
December 2017: Biology of Sport
https://www.readbyqxmd.com/read/29464367/inalambric-biofeedback-devices-to-analyze-strength-manifestation-in-military-population
#13
Rosa Delgado-Moreno, José Juan Robles-Pérez, Susana Aznar, Vicente Javier Clemente-Suarez
The study of the effect of stress on both combatants physiological and anatomical systems have been poor studied in the specific literature. The present research aimed to study the effect of combat stress in strength manifestations of leg flexor-extensor muscles and the anaerobic metabolism of soldiers. Before and after asymmetrical combat simulation were analyzed parameters of blood lactate concentration, explosive leg strength manifestation and contractile capacity of leg muscle in 186 professional soldiers...
February 20, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29461420/the-effect-of-ibuprofen-on-muscle-hematological-and-renal-function-hydric-balance-pain-and-performance-during-intense-long-distance-running
#14
Raphael Fabricio de Souza, Dihogo Gama de Matos, Alexandre Reis Pires Ferreira, Philip Chilibeck, Natalie de Almeida Barros, Alan Santos de Oliveira, Luana Mendonça Cercato, Danielle Soares da Silva, Felipe José Aidar
The aim of this study was to investigate the effect of prophylactic use of nonsteroidal anti-inflammatory drugs (NSAID, i.e. Ibuprofen) on physical performance, vertical jump, muscle biomarkers, liver, kidney, acute pain and hydration status of participants in the 42 km Trail Running Challenge, a long-distance race integrated over mountain routes. The sample consisted of 20 males randomly divided into two groups: a control group (CG) and an experimental group (EG) with 12 completing the race (41.1±8.8 y; 75...
February 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29443822/power-to-strength-ratio-influences-performance-enhancement-with-contrast-training
#15
Knut Thomas Schneiker, Jackson James Fyfe, Francois Billaut, David John Bishop
PURPOSE: The effectiveness of contrast training (CST) for improving explosive exercise performance is modulated by various individual characteristics; however, further work is required to define these factors. METHODS: Sub-elite male Australian Football players [n = 22; age, 19 ± 2 y; body mass, 80.4 ± 9.4 kg; one-repetition maximum (1-RM) half squat, 172 ± 18 kg; mean ± SD] completed two experimental trials involving two sets of squat jumps (6 repetitions at 30% 1-RM) performed either alone (CTL condition) or after half squats (6 repetitions at 85% 1-RM; CST condition)...
February 13, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29420390/specific-adaptations-in-performance-and-muscle-architecture-after-weighted-jump-squat-vs-body-mass-squat-jump-training-in-recreational-soccer-players
#16
Giuseppe Coratella, Marco Beato, Chiara Milanese, Stefano Longo, Eloisa Limonta, Susanna Rampichini, Emiliano Cè, Angela Valentina Bisconti, F Schena, F Esposito
The aim of the present study was to compare the effects of weighted jump squat (WJST) vs body mass squat jump training (BMSJT) on quadriceps muscle architecture, lower-limb lean-mass (LM) and muscle strength, performance in change of direction (COD), sprint and jump in recreational soccer-players. Forty-eight healthy soccer-players participated in an off-season randomized controlled-trial. Before and after an eight-week training intervention, vastus lateralis pennation angle, fascicle length, muscle thickness, LM, squat 1-RM, quadriceps and hamstrings isokinetic peak-torque, agility T-test, 10 and 30m sprint and squat-jump (SJ) were measured...
February 6, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29401202/effects-of-different-plyometric-training-frequency-on-measures-of-athletic-performance-in-prepuberal-male-soccer-players
#17
Raja Bouguezzi, Helmi Chaabene, Yassine Negra, Rodrigo Ramirez-Campillo, Zied Jlalia, Bessem Mkaouer, Younés Hachana
This study aimed to compare the effects of one vs. two sessions of equal-weekly volume plyometric training (PT) across 8 weeks on measures of athletic performance (i.e., sprint-time, change of direction [CoD], jumping ability, and muscle strength) in prepuberal male soccer players. Thirty participants were randomly assigned either to one session PT group (1SPT [n=15]) or two sessions PT group (2SPT [n=15]). Plyometric training was integrated into their regular soccer training routine. Pre- and post-training tests for the assessment of sprint-time (e...
February 1, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29373431/the-importance-of-strength-and-power-on-key-performance-indicators-in-elite-youth-soccer
#18
Christopher E Wing, Anthony N Turner, Chris J Bishop
The purpose of this investigation was to examine the importance of strength and power in relation to key performance indicators (KPI's) within competitive soccer match play. This was achieved through using an experimental approach where fifteen subjects were recruited from a professional soccer club's scholarship squad during the 2013/14 season. Following anthropometric measures, power and strength were assessed across a range of tests which included the squat jump (SJ), countermovement jump (CMJ), 20 metre (m) sprint and arrowhead change of direction test...
January 24, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29370541/effects-of-lunar-phases-on-short-term-explosive-physical-performance-among-young-trained-athletes
#19
Narimen Yousfi, Mohamed Arbi Mejri, Mehdi Rouissi, Amri Hammami, Montassar Tabben, Anis Chaouachi, Monoem Haddad, Karim Chamari
Beliefs that lunar phases affect human physiology started in ancient times. Research has recently revealed that a physical fitness index increased in sedentary students at the new moon (NM) and full moon (FM) compared to other moon phases. However, the effect of lunar cycle (moon illumination and gravitational pull) on physical performance in athletes was not examined. Therefore, this study aimed to evaluate whether short-term explosive performance can be influenced by the different phases of the lunar cycle...
January 25, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29334674/relationship-between-jumping-abilities-and-skeletal-muscle-architecture-of-lower-limbs-in-humans-systematic-review-and-meta-analysis
#20
J D Ruiz-Cárdenas, J J Rodríguez-Juan, J Ríos-Díaz
The aim of this study was to examine the influence of skeletal muscle architecture (SMA) features measured by 2-D ultrasonography on jumping performance in humans. A systematic review and meta-analysis was conducted, registry number: CRD42016043602. The scientific literature was systematically searched in eight databases, last run on March 14th, 2017. Cross-sectional studies focused on the association between SMA features and vertical jumping performance were selected. A random-effects model was used to analyze the influence of lower-limb SMA and maximal jump height...
April 2018: Human Movement Science
keyword
keyword
80528
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"