Добірка наукової літератури з теми "Left leg hamstring flexibility"

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Статті в журналах з теми "Left leg hamstring flexibility"

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Manikandan, Nanthini, Srinivansan M, Shanmugananth Elayaperumal, and Abinaya Paneerselvam. "Prevalence Of Hamstring Tightness And Associated Risk Factor Among Non-Professional Football Players." Journal of Neonatal Surgery 14, no. 6 (2025): 84–91. https://doi.org/10.52783/jns.v14.2844.

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Background: Hamstring tightness is a common issue among football players, particularly nonprofessionals, due to inadequate training, poor flexibility, and muscle imbalances. Tight hamstrings can lead to a higher risk of injuries, affecting performance and long-term musculoskeletal health. Identifying the prevalence of hamstring tightness and its associated risk factors can help implement targeted prevention strategies1. Aim: To determine the prevalence of hamstring tightness and its risk factors among non-professional football players. Method: This cross-sectional observational study included 50 non-professional football players aged 18-25. Participants were assessed using the Straight Leg Raise (SLR) test and the Lower Extremity Functional Scale (LEFS). Risk factors such as inadequate warm-up, training load, and muscle strength imbalances were evaluated using the Oslo Sports Trauma Research Centre Questionnaire on Health Problems. Results: Analysis of 50 participants revealed an average SLR test score of 48.3° ± 11.4° for the right leg and 48.76° ± 10.43° for the left leg, indicating a significant prevalence of hamstring tightness. The mean LEFS score was 49.47 ± 10.83, showing functional limitations among players. Factors such as inadequate warm-up, insufficient strength training, and fatigue were significantly associated with hamstring tightness. The correlation between the lower extremity functional scale and risk factor analysis is Significant. Conclusion: The study highlights a high prevalence of hamstring tightness and associated risk factors among non-professional football players. Preventive measures, including structured warm-up routines, strength training, and flexibility exercises, are essential to reduce hamstring tightness and prevent injuries⁵.
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Sharif, Arbela, Sajid Mehmood, Basit Mahmood, Ayesha Siddiqa, Muhammad Aleem Altaf Hassan, and Mahad Afzal. "Comparison of Hamstrings Flexibility among Regular and Irregular Muslim Prayer Offerers." Healer Journal of Physiotherapy and Rehabilitation Sciences 3, no. 1 (2023): 329–33. http://dx.doi.org/10.55735/hjprs.v3i1.126.

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Background: Muslim prayer (salaat/namaz) is a moderate exercise, the body's muscle contraction is both isotonic and isometric during its performance. Two main flexion postures of salaat Rukku and Sujood have a positive effect on the flexibility of the lower back and hamstring muscles. Objective: To explore the effects of Rukku posture on the flexibility of hamstring muscles in female students and to promote the physical benefits of Muslim prayers on the normal population. Methods: This cross-sectional study comprised 400 students, 200 of them were regular prayer offerers and 200 were irregular prayer offerers. Both groups were selected with the help of a questionnaire about the number of prayers offered regularly and posture used for praying and some other questions of inclusion and exclusion criteria. The flexibility of the hamstring muscles was measured by the chair sit and reach test and the straight leg raise test. SPSS v20 was used to calculate the data and the quantitative variables are represented as mean and standard deviation, both groups were compared through the paired sample t-test within groups and between groups performed. Results: On comparison of both groups regular prayer offerers and irregular prayer offerers for hamstring flexibility. It is found that the mean score of the chairs sit and reach test of the regular prayer offerers group is 0.9 for the left leg and 1.3 for the right leg and in irregular prayer offerers for the left leg is -2.0 and for the right leg is -1.8. The mean score of the straight leg raise test regular prayer offerers group, for the right leg is 72 and for the left leg is 64 and in the irregular prayer offerers group, it scores 54 for the right leg and 52 for the left leg. Conclusion: It concludes that Ruku's posture has a significant positive effect on hamstring flexibility. Female students perform Muslim prayers regularly and five times have more flexible hamstring muscles when compared with irregular prayer offerers. Lack of physical activity and prolonged use of computer and mobile phones is causing poor body postures and musculoskeletal pains among the young population.
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O’Connor, Siobhán, Noel McCaffrey, Enda F. Whyte, Michael Fop, Brendan Murphy, and Kieran A. Moran. "Is Poor Hamstring Flexibility a Risk Factor for Hamstring Injury in Gaelic Games?" Journal of Sport Rehabilitation 28, no. 7 (2019): 677–81. http://dx.doi.org/10.1123/jsr.2017-0304.

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Context:Hamstring injuries are a leading cause of injury in Gaelic games. Hamstring flexibility as a risk factor for hamstring injury has not yet been examined prospectively in Gaelic games.Objective:To examine whether hamstring flexibility, using the modified active knee extension (AKE) test, and previous injury are risk factors for hamstring injury in Gaelic players and to generate population-specific AKE cutoff points.Design:Prospective cohort study.Setting:School and colleges.Patients (or Other Participants):Adolescent and collegiate Gaelic footballers and hurlers (n = 570).Intervention(s):The modified AKE test was completed at preseason, and hamstring injuries were assessed over the course of one season. Any previous hamstring injuries were noted in those who presented with a hamstring injury.Main Outcome Measures:Bilateral AKE scores and between-leg asymmetries were recorded. Receiver operating characteristic curves were implemented to generate cutoff points specific to Gaelic players. Univariate and backward stepwise logistic regression analyses were completed to predict hamstring injuries, hamstring injuries on the dominant leg, and hamstring injuries on the nondominant leg.Results:Mean flexibility of 64.2° (12.3°) and 64.1° (12.4°) was noted on the dominant and nondominant leg, respectively. Receiver operating characteristic curves generated a cutoff point of < 65° in the AKE on the nondominant leg only. When controlled for age, AKE on the nondominant leg was the only predictor variable left in the multivariate model (odds ratio = 1.03) and significantly predicted hamstring injury (χ2 = 9.20,P = .01). However, the sensitivity was 0% and predicted the same amount of cases as the null model. It was not possible to generate a significant model for hamstring injuries on the dominant leg (P > .05), and no variables generated aPvalue < .20 in the univariate analysis on the nondominant leg.Conclusions:Poor flexibility noted in the AKE test during preseason screening and previous injury were unable to predict those at risk of sustaining a hamstring strain in Gaelic games with adequate sensitivity.
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Bhosle, Dr Pooja, and Dr Syed Rais Akhter Rizvi. "Comparison of Mulligan Bent Leg Raise (BLR) Versus Traction Straight Leg Raise (TSLR) Technique in Hamstring Tightness in Sewing Machine Operators with Low Back Pain." International Journal of Science and Healthcare Research 7, no. 3 (2022): 66–75. http://dx.doi.org/10.52403/ijshr.20220712.

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Background and Objectives: Mulligans Bent Leg Raise (BLR) and Traction Straight Leg Raise (TSLR) both have been showed improvement in hamstring flexibility. The objective of the study was to find the comparative effect of Mulligans Bent Leg Raise (BLR) over Traction Straight Leg Raise (TSLR) in hamstring tightness in sewing machine operators with low back pain. Methods: 40 sewing machine operators with Hamstring tightness in terms of Lack Of Active knee extension test more than 200 were randomly allocated in two groups. Group A (N=11; M=8, F=9) Mulligans Bent Leg Raise Technique and Group B (N=20; M=9, F=11) received Traction Straight Leg Raise technique. The outcome was assessed in terms of hamstring flexibility by Back saver sit and reach test and disability by Oswestry Low Back Pain Disability Questionnaire at pre and post intervention. Results: The result of present study demonstrated that Both the interventions in group-A (BLR) and group-B (TSLR) were found to be individually effective in treating sewing machine operators with hamstring tightness and low back pain in increasing BSSR in both right and left side and decreasing the disability. But, while compared the post test outcomes in between the groups, there was no much difference in between the groups. Interpretation and Conclusion: The present study concludes that both the interventions of Mulligans BLR and TSLR were individually effective in increasing the flexibility of hamstring and decreasing the disability due to low back Pain.
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Naz, Salma, Saima Riaz, Muhammad Atif Javed, Rehan Ramzan Khan, Hafiza Neelam Muneeb, and Muhammad Sulman. "Comparative Study for Effectiveness of Cryostretching and Static Stretching on Hamstring Flexibity in Young Females." Pakistan Journal of Medical and Health Sciences 16, no. 4 (2022): 1216–18. http://dx.doi.org/10.53350/pjmhs221641216.

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Objective: To compare the effectiveness of cryostretching and static stretching on hamstring flexibility in young females. Methodology: A quasi experimental trial was done, using non probability convenience sampling technique. Thirty young female students from Clinic of Riphah international university having hamstring tightness with at least 10 degree deficiency from 180 degree of Active Knee Extension (AKE) test upon goniometry reading were recruited. Participants were randomly allocated by lottery method into treatment and control group. The leg that showed more tightness considered as treatment leg in both groups. After 5 minutes warm up, pretreatment reading of both groups were noted. Then treatment group received cryostretching technique and control group received static stretching technique as a treatment. After treatment reading was recorded by using AKE Test as a data collection tool and results were analyzed on SPSS 17 version. Results: The mean age, BMI, Right leg and left leg circumference of treatment group is given respectively 24.00±3.40, 24.42±5.20, 49.06 ±7.05 and 49.06±6.80. Both groups showed improvement in hamstring flexibility, but treatment group show greater increase in flexibility (p=0.00). Conclusion: It was concluded from result of this study that both cryostretching and static stretching showed increase in the flexibility of hamstring muscle but cryostretching showed greater increase in flexibility of hamstring muscle. Keywords: Joint flexibility, Muscle stretching exercises, Range of motion, Active knee extension test.
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Davis Hammonds, Autumn L., Kevin G. Laudner, Steve McCaw, and Todd A. McLoda. "Acute Lower Extremity Running Kinematics After a Hamstring Stretch." Journal of Athletic Training 47, no. 1 (2012): 5–14. http://dx.doi.org/10.4085/1062-6050-47.1.5.

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Context: Limited passive hamstring flexibility might affect kinematics, performance, and injury risk during running. Pre-activity static straight-leg raise stretching often is used to gain passive hamstring flexibility. Objective: To investigate the acute effects of a single session of passive hamstring stretching on pelvic, hip, and knee kinematics during the swing phase of running. Design: Randomized controlled clinical trial. Setting: Biomechanics research laboratory. Patients or Other Participants: Thirty-four male (age = 21.2 ± 1.4 years) and female (age = 21.3±2.0 years) recreational athletes. Intervention(s): Participants performed treadmill running pretests and posttests at 70% of their age-predicted maximum heart rate. Pelvis, hip, and knee joint angles during the swing phase of 5 consecutive gait cycles were collected using a motion analysis system. Right and left hamstrings of the intervention group participants were passively stretched 3 times for 30 seconds in random order immediately after the pretest. Control group participants performed no stretching or movement between running sessions. Main Outcome Measure(s): Six 2-way analyses of variance to determine joint angle differences between groups at maximum hip flexion and maximum knee extension with an α level of .008. Results: Flexibility increased between pretest and post-test in all participants (F1,30 = 80.61, P<.001). Anterior pelvic tilt (F1,30 = 0.73, P=.40), hip flexion (F1,30 = 2.44, P=.13), and knee extension (F1,30 = 0.06, P=.80) at maximum hip flexion were similar between groups throughout testing. Anterior pelvic tilt (F1,30 = 0.69, P=.41), hip flexion (F1,30 = 0.23, P=.64), and knee extension (F1,30 = 3.38, P=.62) at maximum knee extension were similar between groups throughout testing. Men demonstrated greater anterior pelvic tilt than women at maximum knee extension (F1,30 = 13.62, P=.001). Conclusions: A single session of 3 straight-leg raise hamstring stretches did not change pelvis, hip, or knee running kinematics.
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Tozim, Beatriz Mendes, Daniele Moraes De Lorenzo, Mariana Giglio Furlanetto, Mary Hellen Morcelli, and Marcelo Tavella Navega. "Analysis of agreement between assessment tools for hamstring flexibility in elderly." Manual Therapy, Posturology & Rehabilitation Journal 12 (August 15, 2014): 187. http://dx.doi.org/10.17784/mtprehabjournal.2014.12.187.

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Introduction : The aging is characterized by a reduction in the effectiveness of skills, among them the loss of the flexibility. The hamstring muscles may be affected by the decreased flexibility occurs when elderly can present limitation of gait, low back problems and osteomuscular. Among the techniques used to evaluate the flexibility of the hamstring muscles are the Sit and Reach Test and Computerized Photogrammetry evaluation of the popliteal angle . However, the scientific literature doesn’t provide consistent data on the correlation of these forms of evaluation. Objective: To analyze the correlation between the sit and reach test and Computerized Photogrammetry evaluation of the popliteal angle used to assess the flexibility of the hamstring muscles in elderly women. Method: This was a cross-sectional, observational study, consisting of 39 elderly, healthy. The evaluation was composed by forms with personal details and physical examination (body weight, height and body mass index), and the evaluation of tests to measure the flexibility of the hamstring muscles (Sit and reach test and Computerized Photogrammetry evaluation of the popliteal angle). The correlation of the data was done by using the Spearmam’s rank correlation coefficient, with a significance level of 5% (p<0.05). Results: The data showed a positive correlation between Sit and Reach Test Computerized Photogrammetry and the popliteal angle of the right leg (r=0.4690, p=0.0026) and the left leg (r=0.3604, p=0.0241). Conclusion: The data from this study allow conclude that the tests for assessing hamstring flexibility in elderly women, the Sit and Reach Test and Computerized Photogrammetry evaluation of the popliteal angle are complementary because it doesn’t correlate strongly.
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Soylu, Ç., B. Kılınc, ES Atalay, TY Şahan, D. Türker, and N. Ün Yıldırım. "Can Stretching Your Hamstrings Unlock Your Jaw? Investigating the Surprising Connection Between Hamstring Flexibility and Jaw Function." Nigerian Journal of Clinical Practice 27, no. 12 (2024): 1364–71. https://doi.org/10.4103/njcp.njcp_239_24.

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Background: The hamstring muscles play a crucial role in posture and movement, with interventions such as stretching and myofascial release commonly used to improve flexibility and muscle function. Emerging evidence suggests that targeting the hamstrings may influence distant structures like the masseter muscle through myofascial connections, highlighting the need for studies investigating these systemic interactions. Aim: To assess the immediate effects of hamstring stretching alone or combined with myofascial release of the hamstring muscle on masseter muscle activity, pressure pain threshold, active mouth opening, hamstring flexibility, and forward head flexed posture in recreationally active participants. Methods: Thirty healthy young adults aged 18–25 years participated in this study. They were randomly assigned to two groups: one receiving static hamstring stretching and the other receiving stretching plus myofascial release. Masseter muscle activity was measured using surface electromyography. Pressure pain threshold (PPT), hamstring flexibility (maximum hip flexion and active knee extension), maximum mouth opening (MMO), and forward head posture [tragus-to-wall distance (TWD)] were assessed before and after the interventions. Results: Treatment led to significant improvements in masseter muscle electromyography (EMG) activity (Group I: Right P = 0.001, Left P = 0.002; Group II: Right P < 0.001, Left P = 0.003) and active knee extension in both groups (Groups I and II: Right P < 0.001, Left P < 0.001), reflecting significant enhancements in muscle activity and flexibility. Mild improvements were also noted in masseter PPT (Group I: Right P = 0.037, Left P = 0.042; Group II: Right P = 0.035, Left P = 0.041), although MMO and TWD remained stable, indicating no significant changes posttreatment. Comparative analysis revealed no significant differences between the groups in response to interventions across all measured parameters, demonstrating that both groups experienced similar improvements and confirming the efficacy of the treatments administered. Conclusion: The study found that the treatments significantly improved masseter muscle activity and knee extension flexibility, with mild enhancements in pain thresholds. However, there were no significant effects on jaw opening (MMO) or posture (TWD). The lack of significant differences between the groups suggests that both treatment protocolsare equally effective. These findings indicate the potential for incorporating the interventions into clinical practice to improve musculoskeletal function in both the jaw and lower limbs.
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Connor, Siobhán O., Noel McCaffrey, Enda Whyte, and Kieran Moran. "Reliability of a Modified Active Knee Extension Test for Assessment of Hamstring Flexibility." International Journal of Athletic Therapy and Training 20, no. 4 (2015): 32–36. http://dx.doi.org/10.1123/ijatt.2015-0007.

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Context:Hamstring injuries are prevalent among team and field sport athletes, and poor flexibility has been theorized as a risk factor. The active knee extension test has been proposed as the gold standard for assessment of hamstring flexibility. Many variations of this test are employed, each of which utilizes a complex apparatus that is difficult to transport, time-consuming to set up, and often unavailable to most clinicians. Thus, a method that utilizes inexpensive and readily available equipment is needed for screening.Objective:To establish the intertester and intratester reliability of a modified active knee extension test that requires minimal equipment.Design:Reliability study.Setting:Athletic therapy facilities.Patients or Other Participants:Fifteen male athletes (19.5 ± 0.6 years) free from any orthopedic or neurological disorders were recruited from a convenience sample of collegiate students.Intervention(s):Three testers participated in three training sessions before data collection. Participants completed three trials of the modified active knee extension test and returned the following week at the same time and day to repeat the process.Main Outcome Measure(s):The intraclass correlation coefficient (ICC), 95% confidence interval, and the standard error of measurement were calculated to assess inter- and intratester reliability.Results:High ICC values were found for intertester reliability (right leg = .98; left leg = .99) and intratester reliability (right leg = .78−.89; left leg = .79−.94).Conclusions:The modified active knee extension test utilizes readily available equipment and offers a quick, reliable, and low-cost alternative for measurement of hamstring flexibility.
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Agopyan, Ani. "Hamstring Flexibility Is Not Correlated with Isokinetic Knee Muscle Strength in Female Modern Dancers." Medical Problems of Performing Artists 33, no. 2 (2018): 95–101. http://dx.doi.org/10.21091/mppa.2018.2016.

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OBJECTIVE: To evaluate bilateral isokinetic knee extensor and flexor muscle strength relative to hamstring flexibility in female modern dancers. METHODS: 20 trained university-level female modern dance students (mean age 23.8±3.8 yrs) volunteered for the study. Concentric isokinetic peak torque (PT, in Nm), peak torque % of body weight (PT%BW, in Nm/kg), and total work (TW, in J) of the knee extensor and flexor muscles for each leg were measured with a dynamometer at a velocity of 60, 180, and 300°/s. Hamstring flexibility of both limbs was assessed by a goniometer with the subjects in a supine position using the active straight leg raise (SLR) test. Participants were divided into flexible (n=10) and highly flexible (n=10) groups based on their hamstring flexibility. RESULTS: The flexible and highly flexible groups had significant differences (p≤0.05) for the right (flexible, 119.7±4.3°; highly flexible, 137.7±2.6°) and left active SLR tests (flexible, 120.6±5.3°; highly flexible, 138.3±4.5°). No significant differences were found between the flexible and highly flexible dancers for concentric knee extensor and flexor muscle strength in all selected parameters (p≤0.05). There were also no significant correlations between flexibility and bilateral PT, PT%BW, and TW scores (60, 180, and 300°/s) of dancers at the concentric contraction (p≤0.05). CONCLUSION: These findings indicate that hamstring flexibility (for both the flexible and highly flexible groups) is not correlated with knee strength and has no impact on torque and work production during maximal concentric isokinetic knee muscle action in university-level female modern dancers.
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Дисертації з теми "Left leg hamstring flexibility"

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Vennard, Kimberly J. "The effects of massage on hamstring flexibility." 2005. http://www.oregonpdf.org.

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Thesis (M.A.)--Sam Houston State University, 2005.<br>Includes bibliographical references (leaves 38-44). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.
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Книги з теми "Left leg hamstring flexibility"

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Quadriceps/hamstrings strength ratios and hip flexibility as predictors of hamstring injuries. 1985.

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Частини книг з теми "Left leg hamstring flexibility"

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Campo, Rocio Vazquez Do, and Divyanshu Dubey. "Ascending Painful Paresthesias, Progressive Ataxia, and Bilateral Foot Drop." In Mayo Clinic Cases in Neuroimmunology, edited by Andrew McKeon, B. Mark Keegan, and W. Oliver Tobin. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780197583425.003.0041.

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A 63-year-old woman had development of ascending paresthesias with lancinating and stabbing pain in all extremities. The symptoms began asymmetrically in the left leg and progressed to involve the right leg and both hands. She noticed progressive bilateral leg weakness, gait instability, and new numbness in the left middle back. She had recurrent falls and required the use of a cane and eventually a walker. She had 18.2 kg of weight loss. She had no autonomic symptoms or bladder or bowel dysfunction. Examination 1 year after symptom onset showed an emaciated, ill-appearing woman. On neurologic examination, she had marked gait ataxia with profound proprioceptive loss in all extremities, asymmetrically reduced pinprick sensation distal to the left thigh, right knee, and both forearms, as well as bilateral middle thoracic dermatomes. She had bilateral foot drop and mild weakness in bilateral hamstring and intrinsic hand muscles. Her deep tendon reflexes were globally absent. Toes were mute to plantar stimulation. Magnetic resonance imaging of the entire spine demonstrated subtle increased T2 signal in the posterior columns extending along cervical and thoracic segments and patchy gadolinium enhancement of the cervical and lumbosacral nerve roots. Electrodiagnostic testing demonstrated a length-dependent axonal sensorimotor peripheral neuropathy. Cerebrospinal fluid analysis showed an increased protein concentration, 9 cerebrospinal fluid-restricted oligoclonal bands, increased immunoglobulin G index and synthesis rate, and normal blood cell count. Paraneoplastic antibody evaluation showed high titers of collapsin-response mediator protein 5-immunoglobulin G autoantibodies in the serum and cerebrospinal fluid. Whole-body <sup>18</sup>F-fludeoxyglucose–positron emission tomography indicated multiple hypermetabolic mediastinal and hilar lymph nodes. Biopsy of a mediastinal lymph node was consistent with small cell lung carcinoma. The patient was diagnosed with collapsin-response mediator protein 5- immunoglobulin G paraneoplastic myeloneuropathy associated with small cell carcinoma of the lung. The patient received a trial of intravenous methylprednisolone followed by chemotherapy, along with chest and prophylactic brain radiotherapy. She achieved a short period of clinical stabilization and mild improvement in gait and limb ataxia. Subsequently, her ataxia and bilateral leg weakness worsened. Her clinical condition rapidly deteriorated, and she became severely malnourished and bedridden, dying 12 weeks later, 2 years after symptom onset. Collapsin-response mediator protein 5- immunoglobulin G antibodies have been associated with asymmetric, painful polyradiculoneuropathy with coexisting myelopathy, often in the setting of thymoma or small cell lung cancer.
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Тези доповідей конференцій з теми "Left leg hamstring flexibility"

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Ban, Maja, Tomislav Đurković, and Nenad Marelić. "Comparison of FMS tests between female and male volleyball players with possible implications on volleyball performance." In 12th International Conference on Kinanthropology. Masaryk University Press, 2020. http://dx.doi.org/10.5817/cz.muni.p210-9631-2020-1.

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Purpose: The main goal of this study is to determine possible differences in the range and quality of movement between senior male and female volleyball players of HAOK Mladost. Methods: Respondents, all right-handed and healthy, were members of the senior volleyball team of HAOK Mladost (female n=24, male n=17). The testing was conducted during the transition period, between the first and second competition period. We used seven tests, all part of standard FMS protocol: Deep Squat (DS), Hurdle Step (HS), In-Line Lunge (ILL), Shoulder Mobility (SM), Active Straight Leg Raise (ASLR), Trunk Stability Push-up (TSPU), Rotary Stability (RS), with 12 measured variables (left and right side for five bilateral tests plus DS and TSPU). Educated staff at the Faculty of Kinesiology, University of Zagreb con-ducted the testing. The examination of significance of the differences between senior male and female volleyball players was conducted by using the nonparametric Mann-Whitney U test. Results: Statistical analysis showed significant difference in three tests: In – Line Lunge Left (ILLL), z= -2,11, p=0,03, with moderate effect size (r=0.33), Active Straight Leg Raise Left (ASLRL), z= -2,58, p=0,01, with moderate to strong effect size (r=0.4) and Stability Push-up (TSPU) z= -3,68, p=0,00, with strong effect size (r=0.58). Conclusion: Statistically significant difference was determined in the range and quality of movement in three measured variables. Male volleyball players achieved better results in two tests: In-Line Lunge Left (ILLL) and Stability Push-up (TSPU). That addresses to a higher ability to keep the balance during lunges (reaction on short balls during reception or defence phase of the game) and considerably higher ability to maintain the stability of the trunk in the transfer of force from the upper extremities to the lower (during block) and vice versa (during spike). It is interesting to note that female volleyball players achieved a significantly better rating in the Active Straight Leg Raise Left (ASLRL) test, suggesting a better flexibility of the left hamstrings and better right hip mobility which enables higher capacity in performing el-ements which require extension, which include almost all volleyball elements (hitting, serve receive and transition into offense, defence and transition into counterattack and blocking, smashing and jump serve).
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