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Assessment of the strength and endurance of the trunk muscle in patients with low back pain

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Głodzik J., Chwała W., Marchewka A., Ruchlewicz T., Skura A.
Medical Rehabilitation
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2008
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vol. 12(3)
15-23
EN
Introduction: In this study, strength and endurance of the trunk muscles were assessed in patients with spondyloarthrosis of the lower spine. Material and methods: 52 women and 49 men with low back pain syndrome (LBPS) were enrolled into the study. The muscle strength of the flexors and extensors of the trunk was determined by calculation of the maximum (MT) and relative torque (RT) during an isometric contraction. Evaluation of endurance of the extensors used calculation of the regression coefficient of the strength reduction during the testing of maximum strength capability. The obtained results were compared to results obtained in healthy persons. Moreover, the relation of those parameters to age, body-mass index – BMI (describing somatic habitus) and the Oswestry Disability Index – ODI (describing pain intensity during activities of daily living) was assessed. Separate analyses were conducted for the groups of males and females.Results: Based on the conducted study and the performed analyses, it can be stated that in patients with chronic low back pain syndrome there is a marked reduction in trunk muscle strength as compared to healthy persons. For females, the reduction ranged from 45% (flexors) to 48% (extensors) for absolute maximum torque values, while for relative values (RT) – from 51% (flexors) to 56% (extensors). In men, the strength reduction of abdominal and back muscles was smaller and was approximately 40% (for MT and RT). Because of such differences in the strength of the back muscles and methodological reasons, endurance variables were not compared. Reduction in trunk muscle strength is primarily due to the pain syndrome and does not depend on patients’ age or habitus. Lower muscle strength can affect the intensity of spinal pain during every-day activities.Conclusions: Precise determination of strength and endurance of the trunk muscles and the appropriate selection of methods of their reinforcement should constitute one of the principal aims of rehabilitation treatment in patients with low back pain.
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Anthropometric and physical performance characteristics in African women football players: A prospective, cross-sectional pilot study

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Mkumbuzi N. S., Chibhabha F., Govere F. M., Chiwaridzo M., Oulo B.
Central European Journal of Sport Sciences and Medicine
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2022
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vol. 40
5-15
EN
Being injured is inherent to participating in football activities; therefore, prevention of injuries is crucial. This requires that the risk factors for injury be established. However, such studies are rarely conducted in women athletes in Africa. The study’s aim was to explore intrinsic risk factors for injury among African women football players using functional and musculoskeletal assessments. Participants (n=40) completed demographic questionnaires; upper and lower limb active range of motion (AROM); muscle endurance and functional movement screening (FMS™) assessed. Median age [Q1; Q3] was 24 [20; 27] years. Participants performed 20.5 [0; 30.5] push-ups and 28 squats [30; 38] in 60s; and held the prone elbow plank for 46.2s [30.6; 64.5]. Median FMS™ score was 12 [10; 13]; most players (n=27, 68%) could not execute a proper deep squat. Most players (70%; n=28), were able to properly perform the in line lunge but scored poorly in the shoulder mobility domain of the FMS™, with 73% (n=29) scoring ≤1. Players with a history of injury had lower FMS™ total (p=0.02). Overall, participants presented with low muscle endurance and movement imbalances, which might predispose them to injury. Hence, strength and conditioning measures should be instituted in this population to prevent injuries.
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