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Journal articles on the topic 'Muscle strength'

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1

Němá, Kristína, Tomáš Kozák, Patrik Berta, and Patrik Bereš. "Intersexual Differences and Relationship of Specific and General Muscle Strength of Young Sports Climbers." Montenegrin Journal of Sports Science and Medicine 14, no. 1 (2025): 3–9. http://dx.doi.org/10.26773/mjssm.250301.

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Climbers benefit from a combination of general and specific strengths, which are tailored to meet the demands of climbing. The aim of the study is to assess the intersexual differences of general and specific muscle strength and the gender-specific relations between specific and general muscle strength of youth boulderers. The research sample consisted of 26 young climbers divided into two groups according to gender. To assess general muscle strength climbers performed hand dynamometry, bent- arm hang and hang on bar. From the viewpoint of assessing specific muscle strength, testing included m
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Gagah, Nurya Putra, Furqon Hidayatullah M., and Kunta Purnama Sapta. "Relationship of Arm Muscle Strength, Arm Muscle Endurance, Abdominal Strength and Balance with Arrow Achievement." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 05, no. 01 (2022): 128–32. https://doi.org/10.47191/ijmra/v5-i1-17.

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This study aims to determine: To determine the significant relationship between arm muscle strength, arm muscle endurance, abdominal muscle strength and balance on archery achievement. This study uses the correlation method. Determination of the sample using purposive sampling technique, namely 13 archery athletes in Surakarta. The variables of this study consisted of four independent variables, namely arm muscle strength, arm muscle endurance, abdominal muscle strength and balance. The dependent variable is archery achievement. The data of this study were obtained through tests and measuremen
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Sakshi, Kajale, and Prof Dr Anap Anap ( PhD). "Evaluation of isometric rotator cuff strength variation among healthy individuals using isometric strength testing device - A cross sectional Study." VIMS JOURNAL OF PHYSICAL THERAPY 5, no. 2 (2023): 1–2. https://doi.org/10.46858/vimsjpt.5202.

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Background: The study is based on measurement of isometric strength of rotator cuff muscles in healthy individuals with age of 40years and above. As mechanical force generated by these muscles is easily measurable, the pathology of these muscles might be identified by assessment of the isometric strengths of these muscles. For assessing the isometric strength, we used isometric strength testing device which has an adjustable dynamometer shaft & one weight sensor which determines force generated by the respective muscle group in kilograms. Method: it was an observational study with six mont
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Henderson, Adrienne D., A. Wayne Johnson, Lindsey G. Rasmussen, et al. "Early-Stage Diabetic Neuropathy Reduces Foot Strength and Intrinsic but Not Extrinsic Foot Muscle Size." Journal of Diabetes Research 2020 (March 12, 2020): 1–9. http://dx.doi.org/10.1155/2020/9536362.

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Background. Tracking progression of diabetic peripheral polyneuropathy (DPN) is usually focused on sensory nerves and subjective testing methods. Recent studies have suggested that distal muscle atrophy may precede sensation loss. Methods to objectively measure distal muscle size and strength are needed to help understand how neuropathy affects muscle function. Purpose. To evaluate individual intrinsic and extrinsic foot muscle sizes and functional foot strength in participants with DPN. Methods. Thirty individuals participated in this cross-sectional study (15 DPN and 15 matched controls). Si
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Fadila, Ervi, Eka Supriatna, Y. Touvan Juni Samodra, Rubiyatno, B. Putra Sastaman, and Davi Sofyan. "Perbedaan Kemampuan Kekuatan (Otot Tungkai dan Otot Tangan) antara Klub Porsela dan Klub Gavora berdasarkan Frekuensi Latihan." Jurnal Pendidikan Kesehatan Rekreasi Vol.9, No.1 (January 25, 2023): 189–95. https://doi.org/10.5281/zenodo.7607032.

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<em>This study aims to determine differences in the ability of biomotor strength (leg muscle strength and hand strength) between the Porsela Club and the Gavora Club based on exercise frequency. Where the Porsela Club has a training schedule of 1 week 6 times while the Gavora Club has a training schedule of 1 week 4 times. Biomotor is the main physical condition in sports, such as strength, speed, endurance, coordination and flexibility which are very important elements in sports activities. In addition, strength is the driving force of every activity. The methods used in this study are survey
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Bohannon, Richard W. "Muscle strength." Current Opinion in Clinical Nutrition and Metabolic Care 18, no. 5 (2015): 465–70. http://dx.doi.org/10.1097/mco.0000000000000202.

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7

Orr, Ann. "Muscle Strength." Physiotherapy 80, no. 7 (1994): 450. http://dx.doi.org/10.1016/s0031-9406(10)60805-x.

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Putra, I. Made Aprika, Anak Agung Ngurah Putra Laksana, I. Putu Merta Yasa, Ida Ayu Kade Arisanthi Dewi, I. Putu Eri Kresnayadi, and I. Gst Ngr Agung Cahya Prananta. "Hubungan Kelentukan Otot Pinggang dan Kekuatan Otot Tungkai terhadap Cut Back Selancar Klub Canggu Surf Community 2021." Jurnal Pendidikan Kesehatan Rekreasi Vol. 8, No. 2 (June 30, 2022): 361–68. https://doi.org/10.5281/zenodo.6784916.

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The purpose of this study was to determine (1) the relationship between the flexibility of the waist muscles to the ability to cut back surfing, (2) the relationship between the ability of leg muscle strength to the ability to cut back surfing, and (3) the joint relationship between the flexibility of the waist muscles and leg muscle strength on the ability to cut back surfing. This research is a multiple relationship research with test and measurement methods. The population was taken from the canggu surf community club, which amounted to 20 people. The data are the results of waist muscle fl
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Ryabov, Sergey N., and Georgy V. Funtikov. "Strength work and strength endurance Part 1." Physical Education and University Sport 2, no. 4 (2023): 414–19. http://dx.doi.org/10.18500/2782-4594-2023-2-4-414-419.

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The purpose of the research is to study the possibilities of increasing the physical strength of an athlete through special exercises. An increase in endurance during physical exertion in relation to strength sports and martial arts is also separately considered. The physiological aspects of the work of human muscles are analyzed, on which the power traction of the muscle and the possibility of prolonged work under load depend. Myofibrils and mitochondria located in muscle fibers are chosen as the main object of the study. Since the fibers inside the muscle are divided into two main types – i.
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Kim, Hyeon Su, Shinjune Kim, Hyunbin Kim, et al. "Correlation between individual thigh muscle volume and grip strength in relation to sarcopenia with automated muscle segmentation." PLOS ONE 19, no. 12 (2024): e0312107. https://doi.org/10.1371/journal.pone.0312107.

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Introduction Grip strength serves as a significant marker for diagnosing and assessing sarcopenia, particularly in elderly populations. The study aims to explore the relationship between individual thigh muscle volumes and grip strength, leveraging advanced AI-based UNETR segmentation techniques for accurate muscle volume assessment. Methods The study included 49 participants from a cohort of 478 patients diagnosed with hip fractures at Gyeongsang National University Hospital. We recorded Grip strength and height and utilized UNETR-based segmentation techniques on CT scans, to calculate indivi
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KESKİN, Kadir, and Feride Nur GÖGÜŞ. "An investigation of the relationship between lower limb muscle size, strength, and tibia length: A specific analysis of the hamstring and quadriceps muscles." Journal of ROL Sport Sciences 4, no. 3 (2023): 814–29. https://doi.org/10.5281/zenodo.8352298.

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The primary aim of this investigation was to assess the interrelations among the ratios of hamstring-to-quadriceps muscle size and strength, as well as the associations with hamstring and quadriceps muscle size, tibia length, and muscle strength. A total of 47 recreationally active male participants voluntarily took part in the study, with an average age of 21.06&plusmn;1.52 years, height of 179.47&plusmn;6.21 cm, body weight of 77.18&plusmn;10.51 kg, and a body mass index of 23.96&plusmn;2.97. The knee flexion and extension strength were assessed at a velocity of 60&ordm;/s. Additionally, usi
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Zuša, Anna, Jānis Lanka, Lenīds Čupriks, and Irēna Dravniece. "A DESCRIPTIVE PROFILE OF ISOMETRIC MUSCLE STRENGTH AND MUSCLE STRENGTH IMBALANCE IN YOUNG TENNIS PLAYERS." Baltic Journal of Sport and Health Sciences 4, no. 99 (2015): 54–61. http://dx.doi.org/10.33607/bjshs.v4i99.103.

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Background. Tennis is assumed as asymmetric sport, prolonged training practice could affect muscle strength imbalance. Muscle strength functional ratio imbalance could be a reason for poor posture, physical weakness and increased risk of injury. The purpose of the research was to evaluate young tennis players’ main muscle group strength topography and to investigate the level of different muscles groups’ bi-lateral and contra-lateral imbalance. Methods. The participants of the study were six young right handed competitive tennis players (girls, age 11.4 ± 0.5 years, tennis experience 4.7 ± 0.6
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Maciejewska-Skrendo, Agnieszka, Katarzyna Leźnicka, Agata Leońska-Duniec, et al. "Genetics of Muscle Stiffness, Muscle Elasticity and Explosive Strength." Journal of Human Kinetics 74, no. 1 (2020): 143–59. http://dx.doi.org/10.2478/hukin-2020-0027.

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Abstract Muscle stiffness, muscle elasticity and explosive strength are the main components of athletes’ performance and they show a sex-based as well as ethnicity variation. Muscle stiffness is thought to be one of the risk factors associated with sports injuries and is less common in females than in males. These observations may be explained by circulating levels of sex hormones and their specific receptors. It has been shown that higher levels of estrogen are associated with lower muscle stiffness responsible for suppression of collagen synthesis. It is thought that these properties, at lea
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Marchant, J. N., and D. M. Broom. "Effects of dry sow housing conditions on muscle weight and bone strength." Animal Science 62, no. 1 (1996): 105–13. http://dx.doi.org/10.1017/s1357729800014387.

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AbstractConfinement has been shown to affect bone strenth in poultry but this weakness has not been documented in other species housed in confinement. The objectives of this experiment were to compare muscle weight and bone strength in non-pregnant sows, of similar age and parity, housed throughout eight or nine pregnancies in two different dry sow systems: (1) individually in stalls and (2) communally in a large group. Following slaughter, the left thoracic and pelvic limbs were dissected and 14 locomotor muscles removed and c. ???lied. A proportional muscle weight was then calculated by divi
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Dinasti, Rahma Karismadarma, Sugiyanto, Fajar Ekawati Febriani, and Riyadi Slamet. "Relationship between Arm Muscle Strength, Lemb Muscle Strength, and Eyes-Feet Coordination with Basic Movement Ability of Elementary School Students." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 07 (2023): 3392–99. https://doi.org/10.5281/zenodo.8199422.

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Purpose: The purpose of this study was to examine relationship between arm muscle strength, lemb muscle strength, and eyes- feet coordination with basic movement ability of elementary school students. Materials and Methods: The use of quantitative methods to examine certain populations or samples, generally sampling techniques are random or random, requires research instruments for data collection. The study was conducted in that place because researchers wanted to test the basic movement skills of upper class students of Madrasah Ibtidaiyah Negeri Kota Cirebon. The total of the 6 classes is 6
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Hara, Koji, Haruka Tohara, Kobayashi Kenichiro, et al. "Association between tongue muscle strength and masticatory muscle strength." Journal of Oral Rehabilitation 46, no. 2 (2018): 134–39. http://dx.doi.org/10.1111/joor.12737.

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Kothurkar, Rohan, Ramesh Lekurwale, and Mayuri Gad. "Assessing the Impact of Lower-Limb Muscle Strength Reduction on Joint Contact Forces During Squatting Using a Musculoskeletal Model." Indian Journal of Physical Medicine and Rehabilitation 35, no. 1 (2025): 33–43. https://doi.org/10.4103/ijpmr.ijpmr_69_24.

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Abstract Background: Estimating joint contact forces (JCFs) is crucial for understanding osteoarthritis progression and optimising implant designs. However, existing musculoskeletal modelling approaches show variability in estimating JCFs during squatting. Reductions in muscle strength within specific groups are commonly observed due to factors such as ageing, certain physiological conditions or surgeries. Aims and Objectives: This study aims to assess the impact of reducing lower-limb muscle group strength on JCFs during squatting. Materials and Methods: Marker trajectories, ground reaction f
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Afifah, Yulia Ayu, Luluk Widarti, Suprianto, and Hariono. "Description of Upper Extremity Muscle Strength In Patients Post Stroke in The Working Area of The Sidoarjo Community Health Center." Global Ten Public Health and Nursing Journal 2, no. 4 (2024): 30–35. https://doi.org/10.36568/gtphnj.v2i4.39.

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Stroke is a functional disorder of the brain caused by blocked blood vessels in the brain which reduces the supply of oxygen and nutrients to the brain. Decreased muscle strength often occurs in stroke patients. Muscle strength is the ability of the muscles to perform one full contraction against resistance or load. The purpose of this study was to describe the strength of the upper extremity muscles in post-stroke patients in the working area of the Sidoarjo Health Center. The research method used is descriptive. The sampling technique in this study used a quota sampling technique with a samp
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Bhattacharjya, Jolly, Reeta Baishya, and Bijit Dutta. "Analysis of muscle strength and endurance in healthy young adults and association of muscle strength with muscle endurance." International Journal of Research in Medical Sciences 7, no. 5 (2019): 1882. http://dx.doi.org/10.18203/2320-6012.ijrms20191694.

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Background: Muscle strength has been studied as a predictor of general health and many diseases. Data on muscle strength of healthy adults are scarce in Assam. Aim of the study was to describe normative data for hand grip muscle strength and endurance among healthy young males and females of age group 18-21. Also, to find out any correlation between muscles strength and endurance.Methods: We have selected 79 healthy volunteers of both sexes of age group 18-21 years. We have measured muscle strength by hand grip dynamometer. Muscle endurance was calculated by asking the subjects to hold the dyn
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Riswandi, Moh Ardana, Diyah Ayu Widyaningrum, and As’ad Syamsul Arifin. "The Relationship Between Arm Muscle Strength and Abs to Upper Service Ability in Volleyball Games Pogar State Elementary School Students of Bangil." PROSIDING SEMINAR NASIONAL PENDIDIKAN JASMANI DAN KEOLAHRAGAAN 1, no. 1 (2023): 227–35. http://dx.doi.org/10.33503/prosiding_penjas_pjkribu.v1i1.2340.

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Service is the first step in starting a volleyball game, so elements that can support service are needed. In addition to regular training, the elements of arm muscle strength and abdominal muscle strength are the capital to be able to do service in volleyball games. The problem in this study is whether there is a relationship between the strength of the arm muscles and abdominal muscles with the ability to serve on the volleyball game for the students of SD Negeri Pogar Bangil. The population of this study were all students of SD Negeri Pogar Bangil. The sample of this research is the fifthgra
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Naseh, Mohammad, Hassan Daneshmandi, and Mohammad Mottaghitalab. "Comparing Hip Muscle Imbalances of Professional Football Players and Ordinary People." Scientific Journal of Rehabilitation Medicine 13, no. 03 (2024): 578–93. http://dx.doi.org/10.32598/sjrm.13.3.3088.

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Background and Aims Muscle strength is one of the main factors in athletic success, injury prevention, and optimal rehabilitation for injured athletes. Also, the symmetry of the muscle strength ratio is fundamental to maintaining force-producing torques. Therefore, the present study aimed to evaluate and compare hip muscle imbalances in football athletes and normal individuals. Methods The current research is causal-comparative. Fifteen football players and 15 normal healthy individuals volunteered for the study. Then, their flexor, extensor, abductor, adductor and internal and external rotato
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Kristensen, Otto H., Egon Stenager, and Ulrik Dalgas. "Muscle Strength and Poststroke Hemiplegia: A Systematic Review of Muscle Strength Assessment and Muscle Strength Impairment." Archives of Physical Medicine and Rehabilitation 98, no. 2 (2017): 368–80. http://dx.doi.org/10.1016/j.apmr.2016.05.023.

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Hershenson, M. B., Y. Kikuchi, and S. H. Loring. "Relative strengths of the chest wall muscles." Journal of Applied Physiology 65, no. 2 (1988): 852–62. http://dx.doi.org/10.1152/jappl.1988.65.2.852.

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We hypothesized that during maximal respiratory efforts involving the simultaneous activation of two or more chest wall muscles (or muscle groups), differences in muscle strength require that the activity of the stronger muscle be submaximal to prevent changes in thoracoabdominal configuration. Furthermore we predicted that maximal respiratory pressures are limited by the strength of the weaker muscle involved. To test these hypotheses, we measured the pleural pressure, abdominal pressure (Pab), and transdiaphragmatic pressure (Pdi) generated during maximal inspiratory, open-glottis and closed
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Dahlqvist, Julia R., Sofie T. Oestergaard, Nanna S. Poulsen, Carsten Thomsen, and John Vissing. "Refining the spinobulbar muscular atrophy phenotype by quantitative MRI and clinical assessments." Neurology 92, no. 6 (2019): e548-e559. http://dx.doi.org/10.1212/wnl.0000000000006887.

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ObjectiveTo investigate the phenotypic features, with emphasis on muscle, in 40 patients with spinobulbar muscular atrophy (SBMA) using quantitative MRI, stationary dynamometry, questionnaires, and functional tests.MethodsPatients with genetically confirmed SBMA were included. MRI was used to describe muscle involvement and quantify muscle fat fractions of arm, back, and leg muscles. Muscle strength was assessed with a stationary dynamometer. All patients were evaluated with the SBMA functional rating scale and the 6-minute walk test among others. MRI and muscle strength results were compared
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Li, Zongzhen. "ISOKINETIC MUSCLE STRENGTH TESTING AND TECHNOLOGY OF TRAINING IN SPORTS MEDICINE." Revista Brasileira de Medicina do Esporte 28, no. 6 (2022): 757–59. http://dx.doi.org/10.1590/1517-8692202228062022_0050.

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ABSTRACT Introduction Current research in sports medicine on muscles adjacent to joints in patients with joint instability focuses on functional instability. However, few studies on muscle strength in the muscles adjacent to the joints in typical patients. Objective This study tests the changes in isokinetic muscle strength in flexion-extension muscle groups in common subjects’ knees and elbows. Methods Randomly selected ordinary citizens to perform isokinetic muscle strength testing with grip strength, explosive pedaling force, and elbow and knee joint movement speeds of 60°/s. Results The si
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Matitaputty, Johanna. "THE RELATIONSHIP BETWEEN ARM MUSCLE STRENGTH AND LEG MUSCLE STRENGTH TOWARDS 50-METER FREESTYLE SWIMMING SPEED." EDU SCIENCES JOURNAL 1, no. 3 (2020): 198–207. http://dx.doi.org/10.30598/edusciencesvol1iss3pp198-207.

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This study aims to determine the relationship between arm muscle strength and leg muscle strength towards 50-meter freestyle swimming speed of Physical Education Students Major, at FKIP Unpatti Ambon. Based on the results of the analysis of leg muscle strength variables with a swimming speed of 50 meters crawl stroke of male students in Health and Sport Study Program of FKIP Unpatti Ambon Fcount = 3,61 &gt; Ftable (dk = 28 and α = 0,05) = 1,70 at the level α = 0.05 and means the null hypothesis (H0) is rejected. Based on the analysis of the variable arm muscle strength with a swimming speed of
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Shvets, L., V. Novoseletskyi, I. Shapoval, L. Perebetiuk, V. Khomenko, and M. Stanislavchuk. "AB1172 SHINS MUSCLE DYSFUNCTION IN FEMALE PATIENTS WITH KNEE OSTEOARTHRITIS." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 1816.3–1817. http://dx.doi.org/10.1136/annrheumdis-2023-eular.2595.

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BackgroundKnee osteoarthritis (OA) is a chronic disease known as a common source of pain and disability globally. OA is among the top 10 causes of physical disability in the elderly population. Loss of muscle mass and lower extremity muscle dysfunction are independently associated with progression of OA and reduction in health status.ObjectivesThe investigation was aimed at studying the condition of flexor/extensor shin muscles in patients with knee OA, serum leptin concentrations and analyze correlations between them by statistical methods.MethodsThe study involved 71 patients with knee OA an
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Nasrulloh, Ahmad, and Iswadi Sigit Wicaksono. "Latihan bodyweight dengan total-body resistance exercise (TRX) dapat meningkatkan kekuatan otot." Jurnal Keolahragaan 8, no. 1 (2020): 52–62. http://dx.doi.org/10.21831/jk.v8i1.31208.

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Penelitian ini bertujuan untuk mengetahui pengaruh latihan bodyweight dengan Total-body Resistance Exercise (TRX) terhadap Peningkatan Kekuatan Otot. Penelitian ini menggunakan metode penelitian eksperimen. Desain penelitian dalam penelitian ini adalah menggunakan one-group pretest-posttest design. Subjek dalam penelitian ini adalah members The Fitlab Hotel Tara. Instrumen yang digunakan leg and back dynamometer untuk mengukur kekuatan otot tungkai dan punggung, hand grip dynamometer untuk mengukur kekuatan otot tangan, dan pull and push dynamometer untuk mengukur kekuatan menarik dan mendoron
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Jaric, Slobodan. "Muscle Strength Testing." Sports Medicine 32, no. 10 (2002): 615–31. http://dx.doi.org/10.2165/00007256-200232100-00002.

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Ahyar, Aienal, Wanti Hasmar, and Putra Hadi. "Management Of Physiotherapy In Futsal Players To Increase Limb Muscle Strength With Lying Leg Curl Exercise." Jurnal Kajian Ilmiah Kesehatan dan Teknologi 4, no. 1 (2022): 54–60. http://dx.doi.org/10.52674/jkikt.v4i1.63.

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Background : Muscle strength is the maximum force, force or tension that a muscle or muscle group can produce. A person may have strength in certain muscle parts but not necessarily in other muscle parts, for example in futsal players who tend to take advantage of leg muscle strength. This muscle strength is a very important component in maximum achievement in playing futsal. Therefore it is very necessary to maintain or maximize the strength of these muscles. Objective : To find out the benefits of Lying Leg Curl weight training on leg muscle strength. Method : A case study with 1 respondent
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Tanaka, Atsushi, Masanori Okamoto, Munehisa Kito, et al. "Influence of the adductor compartment resection on muscle strength and postoperative function in soft-tissue sarcoma of the thigh." Japanese Journal of Clinical Oncology 52, no. 4 (2021): 370–74. http://dx.doi.org/10.1093/jjco/hyab207.

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Abstract Objective To predict the muscle strength and postoperative function for soft-tissue sarcoma arising from the adductor compartment of the thigh. Methods Between 2003 and 2019, 17 cases that underwent resection of the adductor muscle group (adductor longus, adductor magnus, adductor brevis, gracilis and pectineus) for soft-tissue sarcoma in the adductor compartment of the thigh were included. The muscle strength was measured with an isokinetic dynamometer for the knee joint and with a hand-held dynamometer for the hip joint (ratio of affected to unaffected side). The Musculoskeletal Tum
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Harmon, Brennan T., E. Funda Orkunoglu-Suer, Kasra Adham, et al. "CCL2 and CCR2 variants are associated with skeletal muscle strength and change in strength with resistance training." Journal of Applied Physiology 109, no. 6 (2010): 1779–85. http://dx.doi.org/10.1152/japplphysiol.00633.2010.

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Baseline muscle size and muscle adaptation to exercise are traits with high variability across individuals. Recent research has implicated several chemokines and their receptors in the pathogenesis of many conditions that are influenced by inflammatory processes, including muscle damage and repair. One specific chemokine, chemokine (C-C motif) ligand 2 (CCL2), is expressed by macrophages and muscle satellite cells, increases expression dramatically following muscle damage, and increases expression further with repeated bouts of exercise, suggesting that CCL2 plays a key role in muscle adaptati
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Semariasih, Ni Komang Dewi, Ni Luh Nopi Andayani, and I. Made Muliarta. "THE CORELATION BETWEEN GRIP MUSCLES’ STRENTGH AND A LEVEL OF FUNCTIONAL ABILITY AMONG THE ELDERLY WOMEN IN TISTA KERAMBITAN, TABANAN." Majalah Ilmiah Fisioterapi Indonesia 7, no. 2 (2019): 40. http://dx.doi.org/10.24843/mifi.2019.v07.i02.p11.

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The aging process affects the skeletal muscle structure and disability of the musculoskeletal system which resulted in limited and slowed motion. One characteristic of the aging process is a decrease in muscle strength. Muscle strength affects almost all daily activity. Decreased muscle strength can lead to limitations in daily activities, independence and quality of life. This study aims to determine the relationship between handgrip muscles’ strength and level of functional ability among elderly women in Tista, Kerambitan Tabanan. To assess the strength of the relationship and assess the dir
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Frontera, Walter R., Virginia A. Hughes, Roger A. Fielding, Maria A. Fiatarone, William J. Evans, and Ronenn Roubenoff. "Aging of skeletal muscle: a 12-yr longitudinal study." Journal of Applied Physiology 88, no. 4 (2000): 1321–26. http://dx.doi.org/10.1152/jappl.2000.88.4.1321.

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The present study examines age-related changes in skeletal muscle size and function after 12 yr. Twelve healthy sedentary men were studied in 1985–86 (T1) and nine (initial mean age 65.4 ± 4.2 yr) were reevaluated in 1997–98 (T2). Isokinetic muscle strength of the knee and elbow extensors and flexors showed losses ( P &lt; 0.05) ranging from 20 to 30% at slow and fast angular velocities. Computerized tomography ( n = 7) showed reductions ( P &lt; 0.05) in the cross-sectional area (CSA) of the thigh (12.5%), all thigh muscles (14.7%), quadriceps femoris muscle (16.1%), and flexor muscles (14.9%
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Boccia, Gennaro, Samuel D'Emanuele, Paolo Riccardo Brustio, et al. "Strength Asymmetries Are Muscle-Specific and Metric-Dependent." International Journal of Environmental Research and Public Health 19, no. 14 (2022): 8495. http://dx.doi.org/10.3390/ijerph19148495.

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We investigated if dominance affected upper limbs muscle function, and we calculated the level of agreement in asymmetry direction across various muscle-function metrics of two heterologous muscle groups. We recorded elbow flexors and extensors isometric strength of the dominant and non-dominant limb of 55 healthy adults. Participants performed a series of explosive contractions of maximal and submaximal amplitudes to record three metrics of muscle performance: maximal voluntary force (MVF), rate of force development (RFDpeak), and RFD-Scaling Factor (RFD-SF). At the population level, the MVF
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Ren, Yuanyuan, Sheng Zhou, Guangzhen Cheng, Yueqin Tang, Guangge Wang, and Aming Lu. "Lower-Extremity Muscle Strength Symmetry Assessment Through Isokinetic Dynamometry." Life 15, no. 2 (2025): 318. https://doi.org/10.3390/life15020318.

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Objective: This study aimed to establish a dominant and non-dominant limb muscle strength evaluation model to evaluate the asymmetry of lower extremity muscle strength. Methods: The hip, knee, ankle flexors and extensors of 86 runners were evaluated separately in different contraction modes and at different movement speeds. A principal component analysis was used to establish a model for evaluating dominant and non-dominant lower extremity muscle strength and to comprehensively evaluate the asymmetry of lower extremity muscle strength. Results: Six main factors were present in both dominant an
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Bakiyeva, Gulnoza Khabibullayevna, Dilnavoz Toshkan Qizi Berdiyeva, and Sabohat Abdullayevna Ziyamukhamedova. "Application of Physiological Methods Helping to Produce Strength in Heavy Athletes." Sarcouncil Journal of Biomedical Sciences 3, no. 5 (2024): 1–4. https://doi.org/10.5281/zenodo.14026580.

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Muscle strength is one of the most important physical qualities. Muscle strength depends on the physiological diameter and elasticity of the muscles, biochemical processes within them, energy potential, and tactics. Different methods of strength development and assessment have been studied in weightlifters, depending on the form of strength expression and muscle working modes. In the research, the following methods of strength development are used: myometric, isometric, and combined
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Andrade, Marilia Santos, Carolina Ribeiro Lopes Ferrer, Rodrigo Luiz Vancini, et al. "The Effect of Muscle Strength on Marathon Race-Induced Muscle Soreness." International Journal of Environmental Research and Public Health 18, no. 21 (2021): 11258. http://dx.doi.org/10.3390/ijerph182111258.

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Background: Muscle soreness after a competition or a training session has been a concern of runners due to its harmful effect on performance. It is not known if stronger individuals present a lower level of muscle soreness after a strenuous physical effort. The aim of this study was to investigate whether the pre-race muscle strength or the V˙O2max level can predict muscle soreness 24, 48 and 72 h after a full marathon in men. Methods: Thirty-one marathon runners participated in this study (age, 40.8 ± 8.8 years old; weight, 74.3 ± 10.4 kg; height, 174.2 ± 7.6 cm; maximum oxygen uptake, V˙O2ma
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Menezes, Kênia K. P., Patrick R. Avelino, Maria T. M. Alvarenga, and Lucas R. Nascimento. "Inspiratory Training for Improving Respiratory Strength, Pulmonary Function, and Walking in Cerebral Palsy: A Meta-Analysis." Pediatric Physical Therapy 36, no. 2 (2024): 207–15. http://dx.doi.org/10.1097/pep.0000000000001092.

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Purpose: To investigate the effects of inspiratory strength training on respiratory muscle strength, pulmonary function, and walking capacity in children with cerebral palsy, with Gross Motor Function Classification System I to III. Methods: Searches were conducted in CINAHL, LILACS, MEDLINE, and Physiotherapy Evidence Database (PEDro) databases. The outcomes of interest were respiratory muscle strength, pulmonary function, and walking capacity. The quality was assessed by PEDro Scale. The Grading of Recommendations Assessment, Development, and Evaluation system was used to summarize the quali
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Pajoutan, Mojdeh, Ranjana K. Mehta, and Lora A. Cavuoto. "Obesity effect on isometric strength of the trunk extensors." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, no. 1 (2016): 943–47. http://dx.doi.org/10.1177/1541931213601217.

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Trunk muscle strength could contribute to overexertion and falls related back injuries. With obesity, greater trunk extensor muscle is expected to overcome the additional mass especially those accumulated in the abdomen area. The objective of this study was to investigate the extent of obesity effect on maximum trunk extensor muscles’ capacity. 33 females and 35 males in three age-matched groups of normal weight, overweight, and obese completed four replications of three repeated maximum voluntary isometric contractions (MVICs) of trunk extensor muscles. Obesity impairment was evident in the s
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OKITA, YUSUKE, NORIATSU TATEMATSU, KOUTATSU NAGAI, et al. "METHODOLOGICAL APPROACH TO EVALUATE THE EFFECTS OF MUSCLE REMOVAL ON ESTIMATED MUSCLE FORCES DURING WALKING IN PATIENTS AFTER RESECTION OF SOFT TISSUE SARCOMA IN THE THIGH." Journal of Mechanics in Medicine and Biology 20, no. 01 (2020): 1950077. http://dx.doi.org/10.1142/s0219519419500775.

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Patients with lower extremity soft tissue sarcoma (STS) need to recover their walking ability while coping with lower-limb muscle loss due to tumor removal. However, the lack of information on walking after tumor removal hinders the development of gait rehabilitation strategies for such patients. The present study explored how patients walked after STS resection from the viewpoint of muscle forces. The effect of muscle removal and muscle strength asymmetry on estimated muscle forces was also investigated by iterating gait simulations for each patient using three different musculoskeletal model
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Hilton, Tiffany N., Lori J. Tuttle, Kathryn L. Bohnert, Michael J. Mueller, and David R. Sinacore. "Excessive Adipose Tissue Infiltration in Skeletal Muscle in Individuals With Obesity, Diabetes Mellitus, and Peripheral Neuropathy: Association With Performance and Function." Physical Therapy 88, no. 11 (2008): 1336–44. http://dx.doi.org/10.2522/ptj.20080079.

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Background and Purpose The primary purpose of this study was to report differences in calf intermuscular adipose tissue (IMAT), muscle strength (peak torque), power, and physical function in individuals with obesity, diabetes mellitus (DM), and peripheral neuropathy (PN) compared with those without these impairments. A secondary purpose was to assess the relationship between IMAT and muscle strength, power, and physical function. Subjects and Methods Six participants with obesity, DM, and PN (2 women, 4 men; mean age=58 years, SD=10; mean body mass index=36.3, SD=5; mean modified Physical Perf
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Faxon, Jamie, Adeola Sanni, and Kevin McCully. "Hamstrings and Quadriceps Muscles Function in Subjects with Prior ACL Reconstruction Surgery." Journal of Functional Morphology and Kinesiology 3, no. 4 (2018): 56. http://dx.doi.org/10.3390/jfmk3040056.

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Background: As the knee joint is a common site for injury among younger people, the purpose of this study was to measure the skeletal muscle endurance and strength on people with prior anterior cruciate ligament (ACL) knee reconstruction surgery. Method: Young healthy female subjects who reported having knee reconstruction surgery more than one-year prior were tested. The skeletal muscle endurance index (EI) of the hamstrings and quadriceps muscles was determined as the decline in the specific muscle acceleration in response to 2 Hz, 4 Hz, and 6 Hz electrical stimulation. Maximal isometric mus
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Fabrin, Saulo Cesar Vallin, Marcelo Palinkas, Evandro Marianetti Fioco, et al. "Functional assessment of respiratory muscles and lung capacity of CrossFit athletes." Journal of Exercise Rehabilitation 19, no. 1 (2023): 67–74. http://dx.doi.org/10.12965/jer.2244594.297.

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CrossFit is a high-intensity training related to physical fitness and respiratory capacity that can promote changes in lung function. This crosssectional study was aimed at evaluating respiratory muscle strength, electromyographic (EMG) activity, and lung capacity in CrossFit athletes. Thirty subjects aged between 25 and 35 years were divided into groups: CrossFit athletes (n= 15) and sedentary individuals without comorbidities (n= 15). Respiratory muscle strength was evaluated using maximal inspiratory and expiratory pressures, lung capacity, and EMG of the sternocleidomastoid, serratus anter
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Johannsson, Gudmundur, Gunnar Grimby, Katharina Stibrant Sunnerhagen, and Bengt-Åke Bengtsson. "Two Years of Growth Hormone (GH) Treatment Increase Isometric and Isokinetic Muscle Strength in GH-Deficient Adults*." Journal of Clinical Endocrinology & Metabolism 82, no. 9 (1997): 2877–84. http://dx.doi.org/10.1210/jcem.82.9.4204.

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Abstract GH deficiency in adults is associated with reduced muscle mass and muscle strength. The objective of this trial was to follow the effect of 2 yr of GH treatment in GH-deficient adults on muscle performance in relation to a reference population. Knee extensor and flexor strengths for isometric and isokinetic concentric muscle strength were measured using a Kin-Com dynamometer. Hand-grip strength was measured in both hands. The fatigue index was calculated as the percent reduction in peak torque at 50 repeated isokinetic knee extensions. Superimposed, single twitch electrical stimulatio
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Zhang, Xiao Ming, and Jiao Yang Xia. "The Comparative Study on Lower Limb Muscles between International and National Master Skating Athletes." Applied Mechanics and Materials 117-119 (October 2011): 712–15. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.712.

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The knee and ankle muscle strengths of excellent male 500 meters skating athletes were measured and analyzed by means of the CYBEX NORM isokinetic testing and rehabilitation system. The study provides scientific basis for the coaches understanding the practical muscle capacity in accordance with special event, and for the analysis on athletes’ practical training level, potentials and drawbacks of main special muscles. The results are as follows: there are distinct differences between the two groups in some muscles of knee and ankle. The muscle strength features of international skaters are bet
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Miura, Yuka, Gojiro Nakagami, Haruka Tohara, Nami Ogawa, and Hiromi Sanada. "The association between jaw-opening strength, geniohyoid muscle thickness and echo intensity measured by ultrasound." Medical Ultrasonography 22, no. 3 (2020): 299. http://dx.doi.org/10.11152/mu-2317.

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Aim: Jaw-opening strength is an indicator of swallowing function including hyoid bone elevation. Geniohyoid muscles play an important role during hyoid bone elevation. This study aimed to investigate whether geniohyoid muscle thickness and echo intensity measured by ultrasonography were related to jaw-opening strength.Material and methods: Sixty-eight participants (39 men) with an average age of 77±7.7 years were recruited from a functional training health care facility. We measured muscle thickness and echo intensity of the geniohyoid muscle on transverse ultrasound images.Results: Age, calf
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Fathimatuzzahroh, Irwadi Irfiansyah, Sakina, and Kinandita Setiawan Hayuris. "The effect of curcumin supplementation on muscle strength after physical exercise." World Journal of Advanced Research and Reviews 24, no. 3 (2024): 1199–203. https://doi.org/10.5281/zenodo.15189567.

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Physical Exercise is a movement of the body performed by muscles in a planned, structured, and repetitive manner, using energy in the process, with the goal of maintaining physical fitness. The benefits of physical exercise for the body include improving muscle strength. Muscle strength is the increased ability of muscles to perform physical activities. Some literature also mentions that muscle strength can decrease as a result of physical exercise. After performing physical exercise, muscle capability will decline and require time for recovery to regain optimal function. Curcumin is a compoun
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Tavares, A. B. W., E. Micmacher, S. Biesek, et al. "Effects of Growth Hormone Administration on Muscle Strength in Men over 50 Years Old." International Journal of Endocrinology 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/942030.

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Growth hormone (GH) use has been speculated to improve physical capacity in subjects without GH deficiency (GHD) through stimulation of collagen synthesis in the tendon and skeletal muscle, which leads to better exercise training and increased muscle strength. In this context, the use of GH in healthy elderly should be an option for increasing muscle strength. Our aim was to evaluate the effect of GH therapy on muscle strength in healthy men over 50 years old. Fourteen healthy men aged 50–70 years were evaluated at baseline for body composition and muscle strength (evaluated by leg press and b
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Koutedakis, Yiannis, Frances Clarke, Matt Wyon, Danielle Aways, and Emmanuel O. Owolabi. "Muscular Strength: Applications for Dancers." Medical Problems of Performing Artists 24, no. 4 (2009): 157–65. http://dx.doi.org/10.21091/mppa.2009.4032.

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Muscle fibers can generally be divided into slow and fast twitch according to their contraction speed. Even though an individual normally has the same ratio of slow/fast muscle fibers throughout his or her body, the lower-limb muscles are predominantly designed to provide the maximum dynamic output in rapid movements (e.g., jumping). The limited data on dancers' muscle profiles have shown that (ballet) dancers have predominately slow fibers. Muscular strength, together with aerobic and anaerobic capacity, joint mobility and muscle flexibility, and body composition form the continuum of physica
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