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Artykuły w czasopismach na temat „Hamstring muscle”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 29 stycznia 2023

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1

Lee, Jin Hyuck, Ki-Mo Jang, Eunseon Kim, Hye Chang Rhim, and Hyeong-Dong Kim. "Effects of Static and Dynamic Stretching With Strengthening Exercises in Patients With Patellofemoral Pain Who Have Inflexible Hamstrings: A Randomized Controlled Trial." Sports Health: A Multidisciplinary Approach 13, no. 1 (August 13, 2020): 49–56. http://dx.doi.org/10.1177/1941738120932911.

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Background: Patellofemoral pain (PFP) syndrome is closely associated with muscle tightness. However, studies regarding the effects of stretching exercises on PFP patients with inflexible hamstrings are scarce. The aim of the study was to compare the effects between static and dynamic hamstring stretching in patients with PFP who have inflexible hamstrings. Hypothesis: Compared with static hamstring stretching, dynamic hamstring stretching will improve the parameters of hamstring flexibility, knee muscle strength, muscle activation time, and clinical outcomes in this patient population. Study D

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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 (October 1, 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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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 (June 29, 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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Kellis, Eleftherios, Nikiforos Galanis, and Nikolaos Kofotolis. "Hamstring-to-Quadriceps Ratio in Female Athletes with a Previous Hamstring Injury, Anterior Cruciate Ligament Reconstruction, and Controls." Sports 7, no. 10 (September 28, 2019): 214. http://dx.doi.org/10.3390/sports7100214.

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Muscle strength imbalances around the knee are often observed in athletes after anterior cruciate ligament (ACL) surgery and hamstring muscle injury. This study examined three hamstrings-to-quadriceps (H:Q) strength ratio types (conventional, functional, and mixed) in thirteen female athletes with a history of hamstring injury, fourteen basketball players following ACL reconstruction and 34 controls. The conventional (concentric H:Q) peak torque ratio was evaluated at 120°·s−1 and 240°·s−1. The functional (eccentric hamstring to concentric quadriceps) torque ratio was evaluated at 120°·s−1. Fi

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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 (May 1, 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 (February 9, 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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Lempainen, Lasse, Jussi Kosola, Ricard Pruna, Jordi Puigdellivol, Janne Sarimo, Pekka Niemi, and Sakari Orava. "Central Tendon Injuries of Hamstring Muscles: Case Series of Operative Treatment." Orthopaedic Journal of Sports Medicine 6, no. 2 (February 1, 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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8

Rathore, Mrithunjay, Vijayakumari j, Garima Jaiswal, and Shikha Mankotia. "Functional Anatomy of the Hamstring Muscle and Its Correlation with the Various Yogic Postures: A Narrative Review." International Journal of Anatomy and Research 10, no. 4 (December 5, 2022): 8489–95. http://dx.doi.org/10.16965/ijar.2022.234.

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Yoga is believed to be a safe practice; nonetheless, as the number of yoga practitioners has grown, so has the incidence of yoga-related injuries. Overall, lower extremity injuries comprised 64% of total injuries; specifically, the hip, hamstring, knee, ankle, feet and toe. Although a few research studies have quantified the hamstring muscle activities in various yoga asanas, evidence correlating it to functional anatomy is scarce. Therefore, the objective of this narrative review is to examine the literature and analyse hamstrings activity and its relationship to yogic postures, as well as yo

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9

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 (November 1, 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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10

Ansari, Noureddin Nakhostin, Parisa Alaei, Soofia Naghdi, Zahra Fakhari, Shiva Komesh, and Jan Dommerholt. "Immediate Effects of Dry Needling as a Novel Strategy for Hamstring Flexibility: A Single-Blinded Clinical Pilot Study." Journal of Sport Rehabilitation 29, no. 2 (February 1, 2020): 156–61. http://dx.doi.org/10.1123/jsr.2018-0013.

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Context: There are numerous studies on the benefits of dry needling (DN) for pain relief. No studies exist examining the effects of DN on hamstring flexibility. Objective: To determine the immediate effects of DN on hamstring flexibility in healthy subjects with shortened hamstrings. Design: A single-blinded, pretest–posttest clinical pilot study. Setting: A university physiotherapy clinic. Subjects: A total of 15 healthy subjects (female = 11; age = 23.26 [4.3] y) with shortened hamstrings participated in this study. Intervention: Subjects received a single session of DN. Three locations on t

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11

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 (May 1, 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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12

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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13

Shahariyar Ahmed, Asifuzzaman, and Gourang Kumar Padhy. "Effectiveness of Myofascial Release in Increasing Hamstring Flexibility: A Brief Study." BOHR International Journal of Social Science and Humanities Research 2, no. 1 (2023): 1–6. http://dx.doi.org/10.54646/bijsshr.017.

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Hamstring tightness is a common issue that affects many people. The flexibility and range of motion of the joint are both limited when this muscle is contracted. Lower back and lower extremity problems are frequently linked to poor hamstring flexibility. Active release technique and myofascial release technique can improve hamstring flexibility. The major goal of this study is to increase hamstring flexibility so that we can compare active release technique with myofascial release technique for effectiveness. The appropriate course of action for treating those with tight hamstrings to increase

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14

Shi, Yinbin, Gengsi Xi, Mengzi Sun, Yuliang Sun, and Li Li. "Hamstrings on Morphological Structure Characteristics, Stress Features, and Risk of Injuries: A Narrative Review." Applied Sciences 12, no. 24 (December 11, 2022): 12713. http://dx.doi.org/10.3390/app122412713.

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Hamstring injury has been considered one of the most common exercise-induced injuries in sports. Hamstring injuries mostly occur proximal to the biceps femoris. However, the reasons and mechanisms remain unclear. To summarize hamstring morphological structure features and what the relationship is between their structure and risk of injury from the current literature, this review discussed the possible injury mechanism of hamstrings, from the morphological and connected pattern diversity, the mechanical properties, and the stress–strain performance, to probable changes in action control. Morpho

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15

Hatano, Genki, Shigeyuki Suzuki, Shingo Matsuo, Satoshi Kataura, Kazuaki Yokoi, Taizan Fukaya, Mitsuhiro Fujiwara, Yuji Asai, and Masahiro Iwata. "Hamstring Stiffness Returns More Rapidly After Static Stretching Than Range of Motion, Stretch Tolerance, and Isometric Peak Torque." Journal of Sport Rehabilitation 28, no. 4 (May 1, 2019): 325–31. http://dx.doi.org/10.1123/jsr.2017-0203.

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Context: Hamstring injuries are common, and lack of hamstring flexibility may predispose to injury. Static stretching not only increases range of motion (ROM) but also results in reduced muscle strength after stretching. The effects of stretching on the hamstring muscles and the duration of these effects remain unclear. Objective: To determine the effects of static stretching on the hamstrings and the duration of these effects. Design: Randomized crossover study. Setting: University laboratory. Participants: A total of 24 healthy volunteers. Interventions: The torque–angle relationship (ROM, p

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16

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 (January 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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17

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 (December 31, 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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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 (April 16, 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 (April 16, 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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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 (June 30, 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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Kwon, Soo-An, Hae-Bin Kwon, Si-Hyun Jung, Jeongwoo Jeon, Jiheon Hong, Jae-Ho Yu, Jin-Seop Kim, and Dong-Yeop Lee. "The Effect of Icing on Hamstring Muscle with Nordic Hamstring Exercise." Journal of Computational and Theoretical Nanoscience 18, no. 5 (May 1, 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, Jeongwoo Jeon, Jiheon Hong, Jae-Ho Yu, Jin-Seop Kim, and Dong-Yeop Lee. "The Effect of Icing on Hamstring Muscle with Nordic Hamstring Exercise." Journal of Computational and Theoretical Nanoscience 18, no. 5 (May 1, 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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Medeiros, Thales M., João B. Ribeiro-Alvares, Carolina G. Fritsch, Gabriel S. Oliveira, Lucas Severo-Silveira, Evangelos Pappas, and Bruno M. Baroni. "Effect of Weekly Training Frequency With the Nordic Hamstring Exercise on Muscle-Strain Risk Factors in Football Players: A Randomized Trial." International Journal of Sports Physiology and Performance 15, no. 7 (August 1, 2020): 1026–33. http://dx.doi.org/10.1123/ijspp.2018-0780.

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Purpose: To examine the differences between performing Nordic hamstring exercises once or twice a week on hamstring eccentric strength and other muscle-strain risk factors in high-level football players. Methods: In this randomized trial, 32 football players (18–23 y old) completed an 8-week Nordic hamstring exercise training program in 1 of 2 experimental groups: group 1 (once a week; n = 15) and group 2 (twice a week; n = 17). Knee-flexor/extensor peak torques and biceps femoris long-head muscle architecture were assessed through isokinetic dynamometry and ultrasonography, respectively, befo

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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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Wentworth, Michael, and Amy Wentworth. "Hamstring Muscle Stretching." Physical Therapy 78, no. 3 (March 1, 1998): 321–22. http://dx.doi.org/10.1093/ptj/78.3.321.

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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 (March 30, 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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Karaca, G., N. E. Akalan, O. B. Gozubuyuk, S. Devran, H. Evrendilek, K. Onerge, and G. Erturk. "The correlation of hamstring muscle functionality with hamstring muscle strength and ultrasound based hamstring muscle architecture parameters." Gait & Posture 81 (September 2020): 178. http://dx.doi.org/10.1016/j.gaitpost.2020.07.124.

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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 (March 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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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 (December 1, 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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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 (March 26, 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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Tampere, Thomas, Jan Victor, Thomas Luyckx, Hannes Vermue, Nele Arnout, Erik Witvrouw, and Joke Schuermans. "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 (April 16, 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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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 (March 1, 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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Tahir, Jawad. "Risk Factors for Hamstring Muscle Strain Injury in Athletes." Healer Journal of Physiotherapy and Rehabilitation Sciences 1, no. 1 (June 30, 2021): 15–20. http://dx.doi.org/10.55735/thjprs.v1i1.20.

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Abstract  Background: Injury to the hamstring muscle is a common non-contact injury among athletes. Several modifiable and non-modifiable factors are responsible for hamstring strain injury. Objective: The objective was to determine the modifiable and non-modifiable risk factors for hamstring strain injury in the athletes. Methods: This cross-sectional study consisted of 102 athletes using convenient sampling. Athletes age range between 18 to 25 years playing nationally at a provisional level among different universities of Lahore were included while those having pathological condi

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Fjørkenstad Dybdal, Hågen, and Roland Van Den Tillaar. "The acute and post-activation potentiation effects of the SPEEDMAKER™ on step-by step kinematics, muscle activation and performance in 30-m sprints." Acta Kinesiologiae Universitatis Tartuensis 24 (January 2, 2019): 74–88. http://dx.doi.org/10.12697/akut.2018.24.06.

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The purpose of this study was to examine the acute effects of using the SpeedMaker™ on step-by-step kinematics and muscle activity in 30-m sprints and if it is possible to elicit a post-activation potentiation stimulus with the SpeedMaker™ upon subsequent 30-m sprint performance. Thirteen male soccer players (age: 22.8±1.8 yr, body mass: 75.1±11.9 kg, height: 1.80±0.08 m) participated in a repeated measure and cross-over design consisting of two conditions: three normal 30-m sprints (control) and two normal 30-m sprints divided by one 30-m sprint with the SpeedMaker™ (intervention). Kinematics

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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 (January 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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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 (October 31, 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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Khalil, Elaaf, Ruhma Tariq, Hafiz Muhammad Arsalan, Amna Khalid, Sultan Ayaz, and Hassan Javed. "Prevalence of hamstrings tightness and its impact on lower extremity function in asymptomatic individuals with prolonged standing hours Authors." International Journal of Natural Medicine and Health Sciences 1, no. 4 (September 30, 2022): 27–30. http://dx.doi.org/10.52461/ijnms.v1i4.1040.

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Background: Hamstrings undergo adaptive shortening. It is common in healthy individuals to have a sedentary lifestyle affecting males (91.8%) more than females (78.7%). Hamstring tightness can interrupt ADL’s predisposing the person to further health problems i.e. plantar fasciitis, sacroiliac joint pain, decreased lumbar lordosis, knee pain, quadriceps malfunction, postural disturbances, overstretched lumbar ligaments, reduced muscle strength. Aims and Objectives: To analyze the prevalence of hamstring tightness and its effects on lower extremity function in individuals with prolonged standin

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Sannicandro, Italo, Giacomo Cofano, and Paolo Traficante. "Methodology and exercises to reduce the hamstring injury risk: from literature knowledges to the field." MOJ Sports Medicine 4, no. 1 (March 19, 2020): 17–22. http://dx.doi.org/10.15406/mojsm.2020.04.00088.

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Injury prevention is a topic that has received greater attention in recent years: in fact, even if knowledge and research about prevention has increased, the injury incidence remains very high, especially as regards the hamstring district. As can be seen from the scientific literature, there are many studies that have described risk factors, but above all what strategies can be used to decrease this incidence through the prevention exercises. The exercise considered the gold standard for the hamstring injuries prevention is the Nordic hamstring although the literature highlights the particular

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Miokovic, Tanja, Gabriele Armbrecht, Dieter Felsenberg, and Daniel L. Belavý. "Differential atrophy of the postero-lateral hip musculature during prolonged bedrest and the influence of exercise countermeasures." Journal of Applied Physiology 110, no. 4 (April 2011): 926–34. http://dx.doi.org/10.1152/japplphysiol.01105.2010.

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As part of the 2nd Berlin BedRest Study (BBR2-2), we investigated the pattern of muscle atrophy of the postero-lateral hip and hamstring musculature during prolonged inactivity and the effectiveness of two exercise countermeasures. Twenty-four male subjects underwent 60 days of head-down tilt bedrest and were assigned to an inactive control (CTR), resistive vibration exercise (RVE), or resistive exercise alone (RE) group. Magnetic resonance imaging (MRI) of the hip and thigh was taken before, during, and at end of bedrest. Volume of posterolateral hip and hamstring musculature was calculated,

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Kulkarni, Swapnil G., Harshada R. Patil, and Akshay A. Chougule. "Effect of Muscle Energy Technique on Kicking Speed in Football Players with Hamstring Tightness - An Experimental Study." International Journal of Health Sciences and Research 11, no. 7 (July 12, 2021): 44–50. http://dx.doi.org/10.52403/ijhsr.20210707.

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Background: Football is a dynamic sport that requires athlete to perform many different movements and skills such as rapid acceleration and deceleration, jumping, kicking, and sliding, quick changes of directions. Hamstring muscle injury being the commonest injury is due to hamstring tightness. Prevalence of hamstring injury is common in football players because of its tightness. Muscle energy technique helps in increasing Hamstring flexibility of football players with hamstring tightness. Purpose of Study: The purpose of this study was to find out the effect of Muscle energy technique on kick

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Avrillon, Simon, François Hug, and Gaël Guilhem. "Bilateral differences in hamstring coordination in previously injured elite athletes." Journal of Applied Physiology 128, no. 3 (March 1, 2020): 688–97. http://dx.doi.org/10.1152/japplphysiol.00411.2019.

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Hamstring strain injuries (HSIs) involve tissue disruption and pain, which can trigger long-term adaptations of muscle coordination. However, little is known about the effect of previous HSIs on muscle coordination and in particular, after the completion of rehabilitation and in the absence of symptoms. This study aimed to determine if elite athletes with a prior unilateral HSI have bilateral differences in coordination between the hamstring muscle heads after returning to sport. Seventeen athletes with a unilateral history of biceps femoris (BF) injury participated in the experiment. Surface

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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 (March 31, 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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Lee, Seung-Woong, and Jung-Hoon Lee. "Effects of Proprioceptive Neuromuscular Facilitation Stretching and Kinesiology Taping on Pelvic Compensation During Double-Knee Extension." Journal of Human Kinetics 49, no. 1 (December 1, 2015): 55–64. http://dx.doi.org/10.1515/hukin-2015-0108.

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Abstract Shortened hamstrings are likely to restrict the anterior pelvic tilt and induce a slumped posture due to the posterior pelvic tilt. This study was conducted to compare the effects of proprioceptive neuromuscular facilitation (PNF) stretching and modified anterior pelvic tilt taping (APTT) on hamstring shortness-associated pelvic compensation while executing seated double-knee extension. Male college students (28 healthy young adults; mean age: 21.4 ± 2.1 years) with hamstring shortness were recruited as study subjects and randomly assigned to either the PNF stretching group (control g

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Schuermans, Joke, Damien Van Tiggelen, and Erik Witvrouw. "Prone Hip Extension Muscle Recruitment is Associated with Hamstring Injury Risk in Amateur Soccer." International Journal of Sports Medicine 38, no. 09 (July 13, 2017): 696–706. http://dx.doi.org/10.1055/s-0043-103016.

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Abstract‘Core stability’ is considered essential in rehabilitation and prevention. Particularly with respect to hamstring injury prevention, assessment and training of lumbo-pelvic control is thought to be key. However, supporting scientific evidence is lacking. To explore the importance of proximal neuromuscular function with regard to hamstring injury susceptibility, this study investigated the association between the Prone Hip Extension (PHE) muscle activation pattern and hamstring injury incidence in amateur soccer players. 60 healthy male soccer players underwent a comprehensive clinical

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Lawson, Arden, and Lawrence Calderon. "Interexaminer Agreement for Applied Kinesiology Manual Muscle Testing." Perceptual and Motor Skills 84, no. 2 (April 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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Worrell, Teddy W., Troy L. Smith, and Jason Winegardner. "Effect of Hamstring Stretching on Hamstring Muscle Performance." Journal of Orthopaedic & Sports Physical Therapy 20, no. 3 (September 1994): 154–59. http://dx.doi.org/10.2519/jospt.1994.20.3.154.

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van der Made, A. D., T. Wieldraaijer, G. M. Kerkhoffs, R. P. Kleipool, L. Engebretsen, C. N. van Dijk, and P. Golanó. "The hamstring muscle complex." Knee Surgery, Sports Traumatology, Arthroscopy 23, no. 7 (November 5, 2013): 2115–22. http://dx.doi.org/10.1007/s00167-013-2744-0.

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Sannicandro, Italo. "Hamstring injury prevention: the strength assessment in young soccer players." MOJ Sports Medicine 3, no. 2 (April 26, 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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Orchard, John, John Marsden, Stephen Lord, and David Garlick. "Preseason Hamstring Muscle Weakness Associated with Hamstring Muscle Injury in Australian Footballers." American Journal of Sports Medicine 25, no. 1 (January 1997): 81–85. http://dx.doi.org/10.1177/036354659702500116.

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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 (November 10, 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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