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Artigos de revistas sobre o tema "Hamstring muscles"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 7 de julho de 2024

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1

Mirawati, Dita, and Asita Rohmah Mutnawasitoh. "EFFECT OF NEURODYNAMIC SLIDER ON INCREASING HAMSTRING MUSCLE FLEXIBILITY IN RANTAYA PUTRI ALUS DANCERS." Gaster 21, no. 1 (2023): 79–90. http://dx.doi.org/10.30787/gaster.v21i1.1029.

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Flexibility is ability of a joint, muscles and ligaments around it to move freely and comfortably within the maximum expected range of motion. Flexibility is influenced by many factors such as anatomical condition, gender, body mass index, age, physical activity, injury, and training experience. The hamstring muscles are primarily fast-twitch and powerful movement types, so that the hamstrings are resistant to overloading but tire quickly on excessive repetitions. Excessive activity that involves contracting the hamstring muscles will cause the hamstring muscles to experience decreased flexibi

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Lempainen, Lasse, Jussi Kosola, Ricard Pruna, et al. "Central Tendon Injuries of Hamstring Muscles: Case Series of Operative Treatment." Orthopaedic Journal of Sports Medicine 6, no. 2 (2018): 232596711875599. http://dx.doi.org/10.1177/2325967118755992.

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Background: As compared with injuries involving muscle only, those involving the central hamstring tendon have a worse prognosis. Limited information is available regarding the surgical treatment of central tendon injuries of the hamstrings. Purpose: To describe the operative treatment and outcomes of central tendon injuries of the hamstrings among athletes. Study Design: Case series; Level of evidence, 4. Methods: Eight athletes (6 top level, 2 recreational) with central hamstring tendon injuries underwent magnetic resonance imaging and surgical treatment. The indication for surgery was recur

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3

Avrillon, Simon, Gaël Guilhem, Aude Barthelemy, and François Hug. "Coordination of hamstrings is individual specific and is related to motor performance." Journal of Applied Physiology 125, no. 4 (2018): 1069–79. http://dx.doi.org/10.1152/japplphysiol.00133.2018.

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The torque-sharing strategies between synergistic muscles may have important functional consequences. This study involved two experiments. The first experiment ( n = 22) aimed 1) to determine the relationship between the distribution of activation and the distribution of torque-generating capacity among the heads of the hamstring, and 2) to describe individual torque-sharing strategies and to determine whether these strategies are similar between legs. The second experiment ( n = 35) aimed to determine whether the distribution of activation between the muscle heads affects endurance performanc

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Vertullo, Christopher J., Jason M. Konrath, Benjamin Kennedy, Hamish Bush, Rodney S. Barrett, and David G. Lloyd. "HAMSTRING MORPHOLOGY AND STRENGTH REMAIN ALTERED 2 YEARS FOLLOWING A HAMSTRING GRAFT IN ACL RECONSTRUCTION." Orthopaedic Journal of Sports Medicine 5, no. 5_suppl5 (2017): 2325967117S0018. http://dx.doi.org/10.1177/2325967117s00181.

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Background: The hamstring graft used in anterior cruciate ligament (ACL) reconstruction has been shown to lead to changes to the semitendinosus and gracilis musculature. This study further evaluated the effect of the surgery on hamstring muscle morphology and knee muscle strength at 2 years post-surgery. Hypotheses: (1) Loss of donor muscle size would significantly correlate with knee muscle strength deficits (2) Loss of donor muscle size would be greater for muscles that do not experience tendon regeneration, and (3) Morphological adaptations would also be evident in non-donor knee muscles. S

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Crawford, Scott K., Kenneth S. Lee, Greg R. Bashford, and Bryan C. Heiderscheit. "Spatial-frequency Analysis of the Anatomical Differences in Hamstring Muscles." Ultrasonic Imaging 43, no. 2 (2021): 100–108. http://dx.doi.org/10.1177/0161734621990707.

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Spatial frequency analysis (SFA) is a quantitative ultrasound method that characterizes tissue organization. SFA has been used for research involving tendon injury, but may prove useful in similar research involving skeletal muscle. As a first step, we investigated if SFA could detect known architectural differences within hamstring muscles. Ultrasound B-mode images were collected bilaterally at locations corresponding to proximal, mid-belly, and distal thirds along the hamstrings from 10 healthy participants. Images were analyzed in the spatial frequency domain by applying a two-dimensional F

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Rovendra, Erit. "Pengaruh Pemberian Cryoterapi Dan Stretching Exercise Terhadap Penurunan Cedera Hamstring Pada Pemain Sepak Bola Remaja Di Nagari Tandikat Selatan Tahun 2020." Journal of Health Educational Science And Technology 4, no. 1 (2021): 57–72. http://dx.doi.org/10.25139/htc.v4i1.3778.

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Abstrak : Cedera hamstring adalah cedera pada jaringan otot hamstringkarena kerusakan langsung atau tidak langsung akibat teregang melebihi batas normal. Cedera ini sering terjadi pada bagian groin muscles, hamstring, dan otot quadricep.Cedera ini sering terjadi pada atlet dimana salah satu otot paha belakang mengalami robekan atau peregangan akibat trauma dan gerakan mendadak atau gerakan tiba-tiba berhenti.Olahraga dengan intesitas gerakan kombinasi seperti sprint, fleksibilitas, kelincahan, dan kekuatan otot yang besar, sering mengalami cedera ini. Pada cedera hamstring para atlit biasanya

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Harput, Gulcan, Hasan Erkan Kılınc, Hamza Özer, Gül Baltacı, and Carl G. Mattacola. "Knee Muscle Strength Recovery in the Early Period After ACL Reconstruction." Orthopaedic Journal of Sports Medicine 2, no. 11_suppl3 (2014): 2325967114S0014. http://dx.doi.org/10.1177/2325967114s00141.

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Objectives: The aim of this study was to investigate quadriceps and hamstrings isometric strength at 4, 8 and 12 week time points following ACL Reconstruction (ACLR) and to document the strength changes of these muscles over time. The primary hypothesis was that there would be significant increases in quadriceps and hamstring muscle strengths between the 4th, 8th and 12th weeks following ACLR. The secondary hypothesis was that the quadriceps index would be higher than hamstring index at 12th week after ACLR. Methods: Thirty patients (Mean ± SD [age, 29.1±2.3yrs; weight, 77.3±13.2kg; height, 17

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8

Vachhani, Rooju, and Himanshi Sharma. "Effectiveness of Suboccipital Muscle Inhibition Technique versus Muscle Energy Technique on Hamstring Muscle Flexibility in College Going Students." International Journal of Research and Review 8, no. 6 (2021): 160–74. http://dx.doi.org/10.52403/ijrr.20210620.

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Background: Hamstring is one of the commonest muscle which often gets tight. Suboccipital muscle inhibition technique is a method of relaxing tension in four muscles located between occiput and axis which regulates the upper cervical vertebra. When the tone of suboccipital muscles falls, it has been reported that the tone of knee flexors such as hamstrings also decreases due to relaxation of myofascia. This is because hamstrings and suboccipital muscles are connected by one neural system, which passes through the duramater called the superficial back line. Muscle energy technique is a procedur

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9

Ahn, Jin-Oh, Jong-Hyuck Weon, Eun-Kyung Koh, and Do-Young Jung. "Effectiveness of hamstring stretching using a pressure biofeedback unit for 4 weeks: A randomized controlled trial." Hong Kong Physiotherapy Journal 40, no. 02 (2020): 99–107. http://dx.doi.org/10.1142/s1013702520500092.

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Background: Stretching and length test of hamstring muscles have been performed commonly to manage lower back pain (LBP) in sports rehabilitation. Previous literatures addressed that stretching techniques and length test of hamstring muscles should be performed with the pelvic maintained in an anterior tilt position. However, there is no study to determine the effectiveness of pressure biofeedback unit (PBU) to maintain in anterior pelvic tilting (APT) on length test and stretching of hamstring muscles. Objective: To determine the effectiveness of hamstring muscles stretching using a PBU. Meth

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Richardson, C., and M. I Bullock. "Changes in muscle activity during fast, alternating flexion-extension movements of the knee." Journal of Rehabilitation Medicine 18, no. 2 (2020): 51–58. http://dx.doi.org/10.2340/165019771986185158.

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The effects of high frequency alternating knee flexion-extension on muscle activity of the quadriceps and hamstring muscle groups has been investigated. Standard loads were used for each subject. The muscle activity in vastus medialis, vastus lateralis, rectus femoris and the lateral hamstrings were recorded by electromyography during increasing velocities. Rectus femoris and hamstrings were found to increase their activities significantly with increasing speed while vastus medialis and vastus lateralis showed no such change. The individual thigh muscles thus differ in function in relation to

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Ahmad Naufal Alifa, Bayu Prastowo, and Dimas Sondang Irawan. "The Effectiveness Of Dynamic Stretching And Nordic Hamstring Exercises To Increase Hamstring Muscle Flexibility In FIA UB Futsal Club Players." JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF) 6, no. 2 (2024): 288–95. http://dx.doi.org/10.35451/jkf.v6i2.2070.

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Hamstring injury is one of most often injury in futsal. Hamstring muscle flexibility is the ability of the muscles in the lower extremities to stretch optimally. Weakness in the hamstring muscles can cause shortening and impaired flexibility which occurs in every human being, so exercises are needed that stretch the shortened muscle tissue and restore flexibility to the hamstring muscles. This research aims to determine the effectiveness of providing dynamic stretching and nordic hamstring and to increase hamstring muscle flexibility in FIA UB futsal club players. The research method used is a

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12

Kukrić, Aleksandar, Nemanja Zlojutro, Robin Orr, Marko Joksimović, and Filip Kukić. "Isokinetic profiles of hamstring and quadriceps muscles in the police special force operators." Montenegrin Journal of Sports Science and Medicine 13, no. 1 (2024): 45–50. http://dx.doi.org/10.26773/mjssm.240305.

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Knee injuries are of concern to police. The aims of this study were to determine initial reference values for isokinetic knee extension and flexion in police special force operators to explore the conventional hamstring contraction (Hcon) quadriceps contraction (Qcon) ratio, and to determine the limb symmetry index of the quadriceps and hamstring muscles. Absolute and relative isokinetic torque of quadriceps and hamstrings were assessed in 10 police special force operators using an isokinetic dynamometer Con-Trex. Subjects performed maximal knee extension and flexion at a contraction velocity

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Megasari, Putu Santi Krishna, Ni Luh Nopi Andayani, Susy Purnawati, and Ida Ayu Dewi Wiryanthini. "THE INTERVENTION CONTRACT RELAX HAMSTRING AND HOLD RELAX QUADRICEPS BETTER THAN CONTRACT RELAX HAMSTRING AND ISOTONIC EXERCISE QUADRICEPS IN IMPROVING FLEXIBILITY OF HAMSTRING ON WOMEN OF PKK AT BANJAR JAMBE BELODAN, DESA DAUH PEKEN, TABANAN." Majalah Ilmiah Fisioterapi Indonesia 6, no. 1 (2018): 47. http://dx.doi.org/10.24843/mifi.2018.v06.i01.p05.

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ABSTRACT Lack of physical activity to excessive physical activity, pregnancy and lack of exercise in women affects the hamstring muscle shortening if left unchecked will cause a loss of flexibility in the muscles. This study is an experimentalresearch design with Two Group Pre and Post Test Design involving 22 samples were divided into 2 groups: treatmentgroup 1 with intervention Contract relax hamstring and hold relax quadriceps and treatment group 2 with interventionContract relax hamstring and Isotonic exercise quadriceps , Paired samples t-test showed the value of p = 0.000 in bothgr

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Latouf, Ben Khaled Abboud, Jamel Halouani, Majd Eddine Mohamed Salah Khalil, and Hamdi Chtourou. "Effect of 8-Weeks PNF Stretching on Muscle Strength and Neuromuscular Activity of the Hamstring Muscles." International Journal of Sport Studies for Health 6, no. 1 (2023): 37–42. http://dx.doi.org/10.61838/kman.intjssh.6.1.7.

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Background: Hamstring injuries are common in sports that involve rapid, forceful lengthening of the hamstring muscles, such as sprinting, jumping, and kicking. This type of injury is more likely to occur in team sports such as football and handball. Objectives: The purpose of this study was to investigate chronic effects of proprioceptive neuromuscular facilitation (PNF) stretching on muscle strength and neuromuscular activity of the hamstring muscle. Methods: Six male team sports players (age: 24.38 ± 1.94 years; height: 180.73 ± 6.05 cm; body-mass: 80.23 ± 10.42 kg) were recruited for this s

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15

Muralidharan, CK. "Comparison of Modified RAZOR Curl and Nordic Hamstring Curl Exercises in improving Hamstring Muscle Performance among Male Volleyball Players." Chettinad Health City Medical Journal 11, no. 1 (2022): 9–15. http://dx.doi.org/10.24321/2278.2044.202203.

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Background: Volleyball players’ lower extremity strength, power, and flexibility are more significant, and hamstrings, in particular, affect their performance. Concentric hamstring performance-enhancing methods are the most common. They may reduce hamstring flexibility and raise the risk of strain. In this study, we focused on enhancing hamstring muscle performance in volleyball players using particular hamstring eccentric training regimens that increase lower extremity performance.Method: A total of 40 volleyball players were sorted into two groups using a suitable sampling procedure based on

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Sunil Nayee, Khushbu, and Apeksha Vaghasiya. "Immediate Effect of Active Release Technique versus Foam Rolling on Hamstring Tightness in Computer Workers." International Journal of Health Sciences and Research 14, no. 5 (2024): 10–15. http://dx.doi.org/10.52403/ijhsr.20240502.

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Background and need of research: In computer workers due to their prolonged sitting throughout the day can lead to various problems like tightness of muscle, decreased joint range of motion and decreased flexibility. As hamstring is a key component of flexibility in the lower body and it is more prone to get tightened. Due to prolonged sitting in Computer workers, the hamstring muscles are in shortened position (posterior pelvic tilt & knee 90° flexion) which causes the tightness of the hamstring muscles. Therefore, the objective of study is to find out the immediate effect of active relea

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Rahim, Maryam, Shahzana Khalid, Zainab Saad, and Khawar Khattak. "Effects of hamstring stretching using pressure bio feedback unit in patients with low back pain." Rehabilitation Journal 08, no. 01 (2024): 26–32. http://dx.doi.org/10.52567/trehabj.v8i01.58.

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Background: Hamstring tightness can alter lumbar posture, impact pelvic alignment, and exacerbate low back pain. It's important to research whether hamstring stretches with a pressure biofeedback unit work for those with low back pain. Objectives: To determine the effects of hamstring stretching using a pressure biofeedback unit in patients with low back pain. Methodology: A total of n=38 Male and female subjects between the ages of 25-40 years, with >3 months history of low back pain having bilateral hamstring shortening less than 70O, and (ODI) score between 20% to 40% were enrolled in th

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Pietraszewski, Przemysław, Artur Gołaś, Aleksander Matusiński, Sylwia Mrzygłód, Aleksandra Mostowik, and Adam Maszczyk. "Muscle Activity Asymmetry of the Lower Limbs During Sprinting in Elite Soccer Players." Journal of Human Kinetics 75, no. 1 (2020): 239–45. http://dx.doi.org/10.2478/hukin-2020-0049.

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Abstract The analysis of movement patterns through EMG activity provides the opportunity to identify the muscle groups most involved in a particular exercise, and to determine the scope of inter-limb deficiencies. The aim of the present study was to investigate the effects of a side-to-side muscle activity asymmetry between the left and the right lower limb during sprinting in soccer players. Sixteen professional soccer players took part in the study. Their age, body mass and body height equaled 23.7 ± 7.6 years, 81.2 ± 10.8 kg and 179.3 ± 12.2 cm, respectively. The sprint test consisted of tw

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Witvrouw, Erik, Lieven Danneels, Peter Asselman, Thomas D'Have, and Dirk Cambier. "Muscle Flexibility as a Risk Factor for Developing Muscle Injuries in Male Professional Soccer Players." American Journal of Sports Medicine 31, no. 1 (2003): 41–46. http://dx.doi.org/10.1177/03635465030310011801.

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Background Muscular tightness is frequently postulated as an intrinsic risk factor for the development of a muscle injury. However, very little prospective data exist to prove this. Hypothesis Increased muscle tightness identifies a soccer player at risk for a subsequent musculoskeletal lesion. Study Design Prospective cohort study. Methods We examined 146 male professional soccer players before the 1999–2000 Belgian soccer competition. None of the players had a history of muscle injury in the lower extremities in the previous 2 years. The flexibility of the hamstring, quadriceps, adductor, an

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Lawson, Arden, and Lawrence Calderon. "Interexaminer Agreement for Applied Kinesiology Manual Muscle Testing." Perceptual and Motor Skills 84, no. 2 (1997): 539–46. http://dx.doi.org/10.2466/pms.1997.84.2.539.

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Two trials of the interexaminer reliability of Applied Kinesiology manual testing were conducted. On the first trial three clinicians, each with greater than ten years of experience with muscle testing procedures, tested 32 healthy individuals to estimate their agreement on the strength or weakness of right and left piriformis and right and left hamstring muscles. Significant agreement between examiners was found for piriformis muscles, but little significant agreement was noted when hamstrings were tested. In a second study, the same three examiners tested 53 subjects for strength or weakness

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Smoła, Eliza, Katarzyna Wódka, Marta A. Bibro, and Agnieszka Jankowicz-Szymańska. "Flexibility of the hamstring muscles and the position of thetrunk in boys training football." Health Promotion & Physical Activity 15, no. 2 (2021): 9–14. http://dx.doi.org/10.5604/01.3001.0014.9505.

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<p><b>Introduction: </b>The objective of the study was to assess the flexibility of the hamstring muscles and their relationship with the position of the spine, shoulder and pelvic girdles in individual planes in boys training football. <p><b>Material and methods: </b>The study included 28 boys aged 10-14, training football 3 times a week for at least 2 years. The subjects were divided into two groups: correct bilateral flexibility of the hamstring muscles, bilateral shortening of the hamstring muscles. Body height and weight were measured and BMI was calcul

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Stephens, James, Joshua Davidson, Joseph DeRosa, Michael Kriz, and Nicole Saltzman. "Lengthening the Hamstring Muscles Without Stretching Using “Awareness Through Movement”." Physical Therapy 86, no. 12 (2006): 1641–50. http://dx.doi.org/10.2522/ptj.20040208.

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Abstract Background and PurposePassive stretching is widely used to increase muscle flexibility, but it has been shown that this process does not produce long-term changes in the viscoelastic properties of muscle as originally thought. The authors tested a method of lengthening hamstring muscles called “Awareness Through Movement” (ATM) that does not use passive stretching. Subjects. Thirty-three subjects who were randomly assigned to ATM and control groups met the screening criteria and completed the intervention phase of the study. Methods. The ATM group went through a process of learning co

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Prianthara, I. Made Dhita, Ida Ayu Astiti Suadnyana, I. A. Pascha Paramurthi, Ni Luh Anita Chandra Dewi, and I. Dewa Gde Alit Kamayoga. "Neurodynamic Sciatic Nerve Sliders and Passive Stretching Technique to Reduce Pain and to Increase Hamstring Muscle Flexibility." Jurnal Pendidikan Jasmani dan Olahraga 8, no. 2 (2023): 217–27. http://dx.doi.org/10.17509/jpjo.v8i2.58228.

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Short hamstring syndrome is a condition caused by a reduction of the length of hamstring muscles causing muscle tension, muscle strain, and limitations in movement and function. The purpose of this study was to determine the efficacy of the neurodynamic sciatic nerve sliders technique with passive stretching on reducing pain and increasing flexibility of the hamstring muscles in tailors with short hamstring syndrome. This study was an experimental study with pre-test and post-test two group design. The study sample consisted of 22 people given the neurodynamic sciatic nerve sliders technique i

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Burgess, T., T. Vadachalam, K. Buchholtz, and J. Jelsma. "The effect of the contract-relax-antagonist-contract (CRAC) stretch of hamstrings on range of motion, sprint and agility performance in moderately active males: A randomised control trial." South African Journal of Sports Medicine 31, no. 1 (2019): 1–5. http://dx.doi.org/10.17159/2078-516x/2019/v31i1a6091.

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Background: Although stretching is done routinely to prevent injury during explosive sport activities, there is some concern that effective stretching might negatively impact on performance. Objectives: This study’s main objective was to investigate the impact of a specific stretch (CRAC), in which the muscle to be stretched, hamstrings, is actively contracted then relaxed. This is then followed by the antagonist muscle (quadriceps) contracting. Secondly, the impact of the stretch on performance was examined. Methods: A randomised control trial was used. Forty healthy active males

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Burgess, T., T. Vadachalam, K. Buchholtz, and J. Jelsma. "The effect of contract-relax-agonist-contract (CRAC) stretch of hamstrings on range of motion, sprint and agility performance in moderately active males: A randomised control trial." South African Journal of Sports Medicine 31, no. 1 (2019): 1–5. http://dx.doi.org/10.17159/6091.

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Background: Although stretching is done routinely to prevent injury during explosive sport activities, there is some concern that effective stretching might negatively impact on performance. Objectives: This study’s main objective was to investigate the impact of a specific stretch (CRAC), in which the muscle to be stretched, hamstrings, is actively contracted then relaxed. This is then followed by the antagonist muscle (quadriceps) contracting. Secondly, the impact of the stretch on performance was examined. Methods: A randomised control trial was used. Forty healthy active males

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Hodijah, Rudy Handoyo, and Robby Tjandra Kartadinata. "Effectiveness of Adding Lower Extremity Isotonic Exercise on Hamstring Flexibility of Hajj Pilgrims Who Receive Walking Aerobic Exercise." Indonesian Journal of Physical Medicine and Rehabilitation 13, no. 01 (2024): 10–19. http://dx.doi.org/10.36803/indojpmr.v13i01.406.

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ABSTRACT Introduction: Hajj is a pilgrimage that is mostly carried out walking. One of the muscles that plays an important role in walking activities is hamstring muscle. The hamstring muscles often experience shortening (tightness), so exercises to increase the flexibility of the hamstring muscles are something that needs to be done. The goals of this study is to investigate the effect of adding lower extremity isotonic exercise on hamstring flexibility in hajj pilgrims who receive walking aerobic exercise. Method: A randomized controlled trial was used for this research. A total of 36 indivi

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Yanagisawa, Osamu, and Atsuki Fukutani. "Muscle Recruitment Pattern of The Hamstring Muscles in Hip Extension and Knee Flexion Exercises." Journal of Human Kinetics 72, no. 1 (2020): 51–59. http://dx.doi.org/10.2478/hukin-2019-0124.

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AbstractWe aimed to compare dynamic exercise performance between hip extension exercises with different knee angles and between knee flexion exercises with different hip angles, and to investigate the recruitment pattern of the hamstrings in each exercise. Seven men performed 4 isokinetic exercises (3 maximal concentric contractions at 30°/s (peak torque) and 30 maximal concentric contractions at 180°/s (total work)): hip extension with the knee fully extended (HEke) and with the knee flexed at 90° (HEkf) and knee flexion with the hip fully extended (KFhe) and with the hip flexed at 90° (KFhf)

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Spinoso, Deborah Hebling, Murilo Goulart, Antonio Ferreira, and Marcelo Navega. "Analysis of the relationship between hamstring flexibility with muscular strength and its response to myofascial release." Manual Therapy, Posturology & Rehabilitation Journal 20 (September 15, 2022): 1–7. http://dx.doi.org/10.17784/mtprehabjournal.2022.20.1235.

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Background: Decreased flexibility can contribute to postural changes, the deficit in the ability to produce strength, and predispose to injuries. Currently, several myofascial release techniques work to improve muscle flexibility. Objective: To analyze the relationship between flexibility and muscle strength of the knee flexors and to verify the acute effect of two modalities of myofascial release on the flexibility of the hamstrings. Methods: 45 women participated in this study, divided into Manual Release Group, Instrumental Release Group, and Control Group. A sit and reach test, a third fin

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MO, Ericson, Nisell R, Arborelius UP, and Ekholm J. "Muscular activity during ergometer cycling." Journal of Rehabilitation Medicine 17, no. 2 (2020): 53–61. http://dx.doi.org/10.2340/165019771985175361.

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The aim of the study was to quantify the activity as recorded by electromyography during ergometer cycling in eleven different muscles of the lower extremity. Eleven healthy subjects rode in twelve different ways at different work-load, pedalling rate, saddle height and pedal foot position. Vastus medialis and lateralis, gastrocnemius medialis and lateralis and the soleus muscle were the most activated muscles. Changes in muscle activity during different calibrations were studied in eight of the eleven muscles. An increase in work-load significantly increased the mean maximum activity in all t

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Fahmi, Faradisa Yuanita, Ellyana Ellyana, and Warsono Warsono. "The Effect of Hamstring Muscle Group Stretch On Muscle Flexibility And Quality Of Life In Osteoarthritis Patients." Media Keperawatan Indonesia 6, no. 3 (2023): 215. http://dx.doi.org/10.26714/mki.6.3.2023.215-223.

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Osteoarthritis is the most common disease of arthritis which is defined as chronic inflammation of the joints due to damage to the cartilage. The global prevalence of knee osteoarthritis is 3.8% and 0.85% of hip osteoarthritis. Meanwhile in Indonesia, based on the results of the 2018 Riskades, it showed that the prevalence of joint disease was recorded at around 7.3%. The aim of this study was to determine the effect of stretching the hamstring muscle groups on muscle flexibility and quality of life in osteoarthritis patients at the Kaliwungu Health Center. This research uses the quasy experim

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Syarwan, La Ode Muhammad, and Darwis Durahim. "BEDA PENGARUH ANTARA PEMBERIAN CONTRACT RELAX DENGAN HOLD RELAX TERHADAP PENINGKATAN FLEKSIBILITAS OTOT HAMSTRING PADA ATLET SMAN 18 MAKASSAR." Media Fisioterapi Politeknik Kesehatan Makassar 13, no. 2 (2023): 22. http://dx.doi.org/10.32382/mf.v13i2.3182.

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Background: Flexibility is the ability of a tissue or muscle to experience maximum lengthening so that the body can move with the full range of motion of the joints, without the onset of pain. Decreased hamstring flexibility can be caused by several factors, such as shortening of the hamstring muscles, acute or chronic injury to the hamstring muscles, decreased hip joint, excessive activity, and improper training patterns.Methods: This study was a quasi-experimental study using a two-group pre-test and post-test design. The aim was to determine the different effects of the Contract Relax inter

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Panchal, Shruti, Dharaben Patel, Ambica Mall, and Threety Pruchhak. "Effects of Sub-Occipital Muscles Inhibition and Self Stretch on Calf and Hamstring Muscle Tightness: One Time Comparative Study." Parul University Journal of Health Sciences and Research 2, no. 2 (2024): 14–22. http://dx.doi.org/10.62373/pujhsr.2023.122.

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Background: Muscle tightness is the most limiting factor for restricted ROM and decreased joint flexibility. Hamstring and calf muscles are more prone to getting tight, which causes musculoskeletal problems. This study focused on checking the effects of various therapeutic techniques, including the sub-occipital muscle inhibition technique and self-stretching technique, on hamstring and calf muscle flexibility in subjects with tight muscle groups. Objectives: To determine the effects of sub-occipital muscle inhibition and self-stretch on calf and hamstring muscle tightness. Methodology: A tota

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Craddock, N., and K. Buchholtz. "Preventing the seemingly unpreventable – challenging the return-to-play criteria for recurrent hamstring strain prevention." South African Journal of Sports Medicine 30, no. 1 (2018): 1–2. http://dx.doi.org/10.17159/2078-516x/2018/v30i1a3401.

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 Background: Hamstring strains are one of the most common injuries in sport. Previous injury has been found to be one of the greatest risk factors associated with recurrent hamstring strains. Although rehabilitation programmes have been developed and implemented to aid safe and efficient return-to-play, the incidence of hamstring injuries has not decreased.  Discussion: As hamstring strains most commonly occur during the eccentric phase of muscle action, rehabilitation should focus on eccentric muscle strengthening. The L-protocol and the Nordic Hamstring Exercise protocol strength

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Sheikhi, Bahram. "Effect of Global Postural Reeducation Exercise on Pain and Hip Muscle Flexibility in Patients with Chronic Low Back Pain and Movement Control Dysfunction." International Journal of Basic Science in Medicine 4, no. 4 (2019): 148–54. http://dx.doi.org/10.34172/ijbsm.2019.05.

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Introduction: Patients with non-specific low back pain (NSLBP) and movement control dysfunction demonstrate alternation in hip muscles flexibility and spinal movement patterns. Therapeutic modalities that augment hip muscles flexibility could help these patients. The aim of this study was to investigate the effect of global postural reeducation (GPR) on pain and hip muscle flexibility in patients with NSLBP and movement control dysfunction. Materials and Methods: A total of 27 men with a mean age of 31.21±2.5147 years, height of 166.44±6.11 cm, and weight of 64.21±5.25 kg participated in this

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Song, Mun-ku. "Isokinetic Quadriceps and Hamstring Muscle Strength Values in K League 1 Professional Soccer Players." Korean Journal of Sport Science 32, no. 4 (2021): 472–80. http://dx.doi.org/10.24985/kjss.2021.32.4.472.

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PURPOSE This study aimed to present isokinetic quadriceps and hamstring muscle strength values in K league 1 (K1) professional soccer players and compare these results to those of published studies.METHODS A total of 31 K1 soccer players (age 24.5±4.2) without a history of lower limb injury were included in this study. Isokinetic knee strength tests were implemented at a velocity of 60°·s-1 and 180°·s-1 for both dominant (D) and non-dominant (ND) legs using a dynamometer. Strength variables included peak torque (PT), body mass normalized PT (NPT), bilateral strength difference (BD), and hamstr

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Colby, Scott, Anthony Francisco, Yu Bing, Donald Kirkendall, Michael Finch, and William Garrett. "Electromyographic and Kinematic Analysis of Cutting Maneuvers." American Journal of Sports Medicine 28, no. 2 (2000): 234–40. http://dx.doi.org/10.1177/03635465000280021501.

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The objective of this study was to qualitatively characterize quadriceps and hamstring muscle activation as well as to determine knee flexion angle during the eccentric motion of sidestep cutting, cross-cutting, stopping, and landing. Fifteen healthy collegiate and recreational athletes performed the four movements while knee angle and electromyographic activity (surface electrodes) of the vastus lateralis, vastus medialis obliquus, rectus femoris, biceps femoris, and medial hamstring (semimembranosus/semitendinosus) muscles were recorded. The results indicated that there is high-level quadric

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Wang, Guo Dong, and A. Ming Lu. "A Strength Training Machine Specific for Hamstrings: Injury Prevention and Rehabilitation." Applied Mechanics and Materials 195-196 (August 2012): 35–40. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.35.

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Hamstring muscle strains are one of the most frequent injuries in sports and will result in missed game time by athletes. A sudden and forceful eccentric muscle contraction during the later swing phase of sprinting may directly induce hamstring injury, so does a fast change between eccentric and concentric actions in the foot contact phase. Based on the biomechanical analysis of the hamstring muscle activities during sprinting and the studies focused on hamstring strength training, the purpose of this study is to design a strength training machine specific for hamstring. The activity of hamstr

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Cronin, Kevin, Shane Foley, Seán Cournane, Giuseppe De Vito, and Eamonn Delahunt. "Hamstring muscle architecture assessed sonographically using wide field of view: A reliability study." PLOS ONE 17, no. 11 (2022): e0277400. http://dx.doi.org/10.1371/journal.pone.0277400.

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Purpose To assess the intra-rater reliability of static wide field of view ultrasound to quantify the architectural characteristics of the hamstring muscles. Methods Twenty amateur male athletes were recruited. Their left hamstring muscles were assessed using static wide field of view ultrasound on two separate occasions. Static ultrasound images were acquired by a single sonographer using a 92mm linear transducer. The architectural characteristics (muscle length, fascicle length, pennation angle and muscle thickness) from two distinct locations of the bicep femoris long head and semimembranos

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M., Kamalakannan,, Hemamalini P., and Divya T. "Hamstring tightness causing low back pain among college going students - a cross-sectional study." Biomedicine 40, no. 4 (2021): 531–34. http://dx.doi.org/10.51248/.v40i4.335.

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Introduction and aim: Posterior thigh muscles are also called the Hamstring group of muscles. Its major action is knee flexion and minor action in hip extensor. It is one of the two joint muscles that involve the hip joint and knee joint. When these muscles are shortened or become tight the movement in the hip and knee is affected or reduced. This shortened muscle causes a posterior pelvic tilt that leads to a flat back. Prolonged tightness causes low back pain. Tightness is mainly due to inadequate physical activity results in stiffness, osteoarthritis, and osteoporosis. The aim of this study

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Tampere, Thomas, Jan Victor, Thomas Luyckx, et al. "Biceps Femoris Compensates for Semitendinosus After Anterior Cruciate Ligament Reconstruction With a Hamstring Autograft: A Muscle Functional Magnetic Resonance Imaging Study in Male Soccer Players." American Journal of Sports Medicine 49, no. 6 (2021): 1470–81. http://dx.doi.org/10.1177/03635465211003309.

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Background: Rates of reinjury, return to play (RTP) at the preinjury level, and hamstring strain injuries in male soccer players after anterior cruciate ligament reconstruction (ACLR) remain unsatisfactory, due to multifactorial causes. Recent insights on intramuscular hamstring coordination revealed the semitendinosus (ST) to be of crucial importance for hamstring functioning, especially during heavy eccentric hamstring loading. Scientific evidence on the consequences of ST tendon harvest for ACLR is scarce and inconsistent. This study intended to investigate the repercussions of ST harvest f

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Kellis, Eleftherios, and Chrysostomos Sahinis. "Is Muscle Architecture Different in Athletes with a Previous Hamstring Strain? A Systematic Review and Meta-Analysis." Journal of Functional Morphology and Kinesiology 7, no. 1 (2022): 16. http://dx.doi.org/10.3390/jfmk7010016.

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Hamstring strains are a frequent injury in sports and are characterized by a high recurrence rate. The aim of this review was to examine the muscle and tendon architecture in individuals with hamstring injury. A systematic literature search in four databases yielded eleven studies on architecture following injury. Differences in the fascicle length (FL), pennation angle (PA) and muscle size measures (volume, thickness and physiological cross-sectional area) at rest were not significantly different between the previously injured limb and the contralateral limb (p > 0.05). There was moderate

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Gérard, Rémy, Léo Gojon, Philippe Decleve, and Joachim Van Cant. "The Effects of Eccentric Training on Biceps Femoris Architecture and Strength: A Systematic Review With Meta-Analysis." Journal of Athletic Training 55, no. 5 (2020): 501–14. http://dx.doi.org/10.4085/1062-6050-194-19.

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Objective To determine the effects of an eccentric hamstrings strength-training program, performed for at least 4 weeks by healthy adults, on muscle architecture and eccentric strength. Data Sources A systematic search was performed up to October 2018 in the following electronic databases: PubMed, PEDro, CINAHL and SPORTDiscus. Combinations of the following search terms were used: eccentric strength training, eccentric loading, nordic hamstring, hamstring strength, fascicle length, pennation angle, muscle thickness, muscle architecture, biceps femoris long head, biceps femoris, and hamstring m

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Inoue, Masayuki, Kazunori Yasuda, Masatomo Yamanaka, Tatsuhiko Wada, and Kiyoshi Kaneda. "Compensatory Muscle Activity in the Posterior Cruciate Ligament-Deficient Knee During Isokinetic Knee Motion." American Journal of Sports Medicine 26, no. 5 (1998): 710–14. http://dx.doi.org/10.1177/03635465980260051801.

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We performed electromyographic analyses in 12 patients with posterior cruciate ligament-deficient knees to compare electrical activity in the quadriceps, hamstring, and gastrocnemius muscles between the uninjured and involved limbs. Each patient performed concentric isokinetic knee motion at 30 and 60 deg/sec in both limbs separately. Torques in knee extension and flexion and surface electromyograms from the quadriceps, medial hamstring, and medial gastrocnemius muscles were simultaneously recorded. The uninjured limb served as a control for each patient. Before generation of flexion torque, t

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Da Silva, Geferson Honorato, and Alex Souto Maior. "An assessment of isometric muscle strength and the hamstring: Quadriceps ratio among males trained with free weights vs. machines." Baltic Journal of Health and Physical Activity 14, no. 2 (2022): Article6. http://dx.doi.org/10.29359/bjhpa.14.2.06.

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Introduction. The purpose of this study was to assess the isometric muscle strength (IMS) of the knee extensors and flexors, bilateral asymmetry (BA) and the hamstring: quadriceps ratio (H:Q ratio) between the dominant leg (DL) vs. the non-dominant leg (NDL) of males trained with free-weights vs. machines. Material and Methods: Thirty males were recruited and separated into two groups: Free-weights (n = 15) and Machines (n = 15) groups. All study participants performed the IMS testing for knee extensors and flexors in the DL and NDL using a commercially available load cell. The highest value o

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Sannicandro, Italo. "Hamstring injury prevention: the strength assessment in young soccer players." MOJ Sports Medicine 3, no. 2 (2019): 28–32. http://dx.doi.org/10.15406/mojsm.2019.03.00075.

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Aim: The hamstring strength training in youth soccer is relevant both for muscle injury prevention and for sprint performance increase. This study aim to assessment hamstring eccentric strength in young soccer players to know any lower limb strength asymmetries Methods: The sample is composed of male young soccer players Under 17 (n=14, 16,6±0,5 years, 175,8±7,1cm and 70,9±9,1 kg). To assess the hamstring eccentric strength and the lower limb eccentric strength asymmetry have been used a specific dynamometer (NordBord Hamstring Testing System, Vald Performance, Australia) with software. Every

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Hirschfeld, H., and H. Forssberg. "Phase-dependent modulations of anticipatory postural activity during human locomotion." Journal of Neurophysiology 66, no. 1 (1991): 12–19. http://dx.doi.org/10.1152/jn.1991.66.1.12.

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1. The ability of the CNS to coordinate several motor tasks was studied in humans walking on a treadmill while pulling on a handle. Subjects were instructed to respond to an audio signal that was presented in different phases of the step cycle. Electromyograph (EMG) and movements were recorded from the left arm and leg. 2. The activity of the arm muscle was preceded by postural activity in the leg muscles. The pattern of the anticipatory postural activity differed in the various phases of the step cycle. Lateral gastrocnemius and hamstring muscles were activated during responses occurring in t

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Kwon, Soo-An, Hae-Bin Kwon, Si-Hyun Jung, et al. "The Effect of Icing on Hamstring Muscle with Nordic Hamstring Exercise." Journal of Computational and Theoretical Nanoscience 18, no. 5 (2021): 1495–99. http://dx.doi.org/10.1166/jctn.2021.9571.

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The purpose of this study was the effect of icing on the muscle activity of Hamstring muscles during Nordic Hamstring Exercise after applying the icing. Twenty-eight healthy men participated in this study. Subjects were assigned to experiment and control groups. Nordic Hamstring Exercise was practiced to the experiment and the control groups without applying the icing. The control group rested for 20 minutes with no intervention, while the experiment group was applied 20 minutes of icing. Then Nordic Hamstring Exercise was performed again to compare the differences in muscle activity between t

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Kwon, Soo-An, Hae-Bin Kwon, Si-Hyun Jung, et al. "The Effect of Icing on Hamstring Muscle with Nordic Hamstring Exercise." Journal of Computational and Theoretical Nanoscience 18, no. 5 (2021): 1495–99. http://dx.doi.org/10.1166/jctn.2021.9571.

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The purpose of this study was the effect of icing on the muscle activity of Hamstring muscles during Nordic Hamstring Exercise after applying the icing. Twenty-eight healthy men participated in this study. Subjects were assigned to experiment and control groups. Nordic Hamstring Exercise was practiced to the experiment and the control groups without applying the icing. The control group rested for 20 minutes with no intervention, while the experiment group was applied 20 minutes of icing. Then Nordic Hamstring Exercise was performed again to compare the differences in muscle activity between t

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Pedersen, Helene, Atle Hole Saeterbakken, Markus Vagle, Marius Steiro Fimland, and Vidar Andersen. "Electromyographic Comparison of Flywheel Inertial Leg Curl and Nordic Hamstring Exercise Among Soccer Players." International Journal of Sports Physiology and Performance 16, no. 1 (2021): 97–102. http://dx.doi.org/10.1123/ijspp.2019-0921.

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Purpose: The Nordic hamstring exercise (NHE) has been shown to considerably reduce hamstring injuries among soccer players. However, as the load in the NHE is the person’s own bodyweight, it is a very heavy exercise and difficult to individualize. The flywheel inertial leg curl (FLC) could be an alternative since the eccentric overload is based on the amount of work produced in the concentric movement. Therefore, the primary aim of this study was to compare the activation in the hamstrings at long muscle lengths in the NHE and the FLC in amateur soccer players. Methods: Fifteen male amateur so

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Schuermans, Joke, Lieven Danneels, Damien Van Tiggelen, Tanneke Palmans, and Erik Witvrouw. "Proximal Neuromuscular Control Protects Against Hamstring Injuries in Male Soccer Players: A Prospective Study With Electromyography Time-Series Analysis During Maximal Sprinting." American Journal of Sports Medicine 45, no. 6 (2017): 1315–25. http://dx.doi.org/10.1177/0363546516687750.

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Background: With their unremittingly high incidence rate and detrimental functional repercussions, hamstring injuries remain a substantial problem in male soccer. Proximal neuromuscular control (“core stability”) is considered to be of key importance in primary and secondary hamstring injury prevention, although scientific evidence and insights on the exact nature of the core-hamstring association are nonexistent at present. Hypothesis: The muscle activation pattern throughout the running cycle would not differ between participants based on injury occurrence during follow-up. Study Design: Cas

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