Flexibility does not affect the dorsiflexion of foot and the popliteal angle in young adults |
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| Institution: | 1. The Department of Spondyloorthopedics and Biomechanics of the Spine, University of Medical Sciences, 28 Czerwca 1956 137, Poznań, 61-501, Poland;2. Department of Orthopaedics and Traumatology, University of Medical Sciences Poznan, Poland;3. Public Health Faculty, University of Medical Sciences Poznan, Poland;1. Department of Orthopedic, The First Affiliated Hospital of Jinan University, Guangzhou, China;2. The First Clinical Medical College of Jinan University, Guangzhou, China;3. Clinical Biomechanics and Biomimetic Materials Research Center, Guangdong-Hong Kong-Macao Greater Bay Area, China;1. Department of Orthopaedics, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada;2. Department of Orthopaedics, Kantonsspital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland;3. Department of Clinical Research, University Hospital Basel, Spitalstrasse 12, 4031 Basel, Switzerland;4. Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA;1. Orthopaedic Department, Universidad de Chile Clinical Hospital, Santiago, Independencia, Chile;2. Medicine Faculty, Universidad de Chile, Santiago, Independencia, Chile;3. Universidad de los Andes, Chile, Clinica Universidad de los Andes, Chile;1. School of Nursing, University of Rochester, 255 Crittenden Blvd, Rochester, NY 14642, USA;2. Department of Orthopaedics, School of Medicine and Dentistry, University of Rochester, 601 Elmwood Avenue, Rochester, NY 14642, USA;3. School of Health Science and Human Performance, Movement Analysis Laboratory, Ithaca College, 953 Danby Road, Ithaca, NY 14850, USA;4. Department of Orthopaedics, Director of Sub-Internship and Medical Student Education, Director of Musculoskeletal Curriculum, University of Rochester School of Medicine and Medical Center, 601 Elmwood Avenue, Rochester, NY 14642, USA;1. Department of Medical Surgical and Health Sciences of Trieste University, Orthopaedics and Traumatology Unit, Cattinara Hospital-ASUITS, Strada Di Fiume 447, Trieste, Italy;2. Leni and Peter W. May Department of Orthopaedic Surgery, Icahn School of Medicine at Mount Sinai, 5 E 98th St, 9th Fl, New York, NY, 10029, United States;3. Foot and Ankle West Hospital Mount Sinai, NY, United States |
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| Abstract: | BackgroundThe aim of the study was to assess how flexibility affects the dorsiflexion of foot and the popliteal angle test results in junior high school students.MethodsThe subjects were 142 students from the 2nd, and 3rd year of Poznań junior high schools (age between 13 and 15).Each subject was examined 6 times: there were 3 raters, a specialist in orthopaedics, a resident doctor and a physical therapy student, and each of them performed 2 measurements. Flexibility was also measured using the Beighton scale (score from 0 to 9).ResultsSince the Beighton scale is ordinal in order to evaluate the relationship between flexibility and the range of motion Spearman's rank correlation coefficient was calculated. The statistical analysis showed no correlation between flexibility measured on the Beighton scale and the range of passive foot dorsiflexion and the popliteal angle.ConclusionsThe degree of flexibility does not affect the dorsiflexion of the foot and the popliteal angle in junior high students. At this age the range of dorsiflexion is determined by the length of the triceps surae muscle while the popliteal angle depends on the length of the muscles on the back of the thigh. |
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| Keywords: | Flexibility Adolescents Range of motion of foot and knee |
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