The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors
Background:Hamstrings are one of the most frequently evaluated muscle groups for flexibility in the lower extremity. Passive and active knee extension angle values are used as an indirect indicator of hamstring flexibility. However, the lack of consensus on the cut-off values leads to the use of inc...
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| Format: | Article |
| Language: | English |
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Galenos Publishing House
2018-09-01
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| Series: | Balkan Medical Journal |
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http://balkanmedicaljournal.org/archives/archive-detail/article-preview/the-cut-off-values-for-the-diagnosis-of-hamstring-/19700
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| _version_ | 1828031526886965248 |
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| author | Muhammed Şeref Yıldırım Filiz Tuna Derya Demirbağ Kabayel Necdet Süt |
| author_facet | Muhammed Şeref Yıldırım Filiz Tuna Derya Demirbağ Kabayel Necdet Süt |
| author_sort | Muhammed Şeref Yıldırım |
| collection | DOAJ |
| description | Background:Hamstrings are one of the most frequently evaluated muscle groups for flexibility in the lower extremity. Passive and active knee extension angle values are used as an indirect indicator of hamstring flexibility. However, the lack of consensus on the cut-off values leads to the use of inconsistent angle values in determining the hamstring tightness.Aims:To establish the normative and cut-off values of the passive and active knee extension angles for healthy young adults and to determine the associated factors including the quadriceps strength.Study Design:A cross-sectional study.Methods:A total of 123 volunteer university students, aged 18-24 years, who met the inclusion criteria were included in this study. Passive and active knee extension assessments of the subjects were performed. Subsequently, on the next day, both knee extensor concentric muscle strength of the participants was measured in the isokinetic system. The knee extension angles and the knee extensor strength were recorded as the mean values of the right and the left sides.Results:Passive knee extension angles of 17.1°±9.1° and 9.8°±5.7° and active knee extension angles of 17.8°±9.1° and 13.4°±6° were described as normative values in men and women, respectively. The cut-off values for the diagnosis of hamstring shortness were as follows: passive knee extension angle >32.2° for males and >19.2° for females and active knee extension angle >33.0° for males and >23.4° for females. A significant positive correlation was observed between knee extension angles and isokinetic knee extensor muscle strength in all participants. The knee extension angle and hamstring flexibility were not affected by dominance.Conclusion:The knee extension angles of healthy young people seem to be lower than the results currently reported in the literature. There s a positive correlation between knee extension angles and isokinetic knee extensor muscle strength. |
| first_indexed | 2024-04-10T14:50:12Z |
| format | Article |
| id | doaj.art-651926d65c4640fda548a8f314cb8fa7 |
| institution | Directory Open Access Journal |
| issn | 2146-3123 2146-3131 |
| language | English |
| last_indexed | 2024-04-10T14:50:12Z |
| publishDate | 2018-09-01 |
| publisher | Galenos Publishing House |
| record_format | Article |
| series | Balkan Medical Journal |
| spelling | doaj.art-651926d65c4640fda548a8f314cb8fa72023-02-15T16:07:39ZengGalenos Publishing HouseBalkan Medical Journal2146-31232146-31312018-09-0135538839310.4274/balkanmedj.2017.151713049054The Cut-off Values for the Diagnosis of Hamstring Shortness and Related FactorsMuhammed Şeref Yıldırım0Filiz Tuna1Derya Demirbağ Kabayel2Necdet Süt3 Department of Physical Therapy and Rehabilitation, Trakya University School of Health Science, Edirne, Turkey Department of Physical Therapy and Rehabilitation, Trakya University School of Health Science, Edirne, Turkey Department of Physical Medicine and Rehabilitation, Trakya University School of Medicine, Edirne, Turkey Department of Biostatistics, Trakya University School of Medicine, Edirne, Turkey Background:Hamstrings are one of the most frequently evaluated muscle groups for flexibility in the lower extremity. Passive and active knee extension angle values are used as an indirect indicator of hamstring flexibility. However, the lack of consensus on the cut-off values leads to the use of inconsistent angle values in determining the hamstring tightness.Aims:To establish the normative and cut-off values of the passive and active knee extension angles for healthy young adults and to determine the associated factors including the quadriceps strength.Study Design:A cross-sectional study.Methods:A total of 123 volunteer university students, aged 18-24 years, who met the inclusion criteria were included in this study. Passive and active knee extension assessments of the subjects were performed. Subsequently, on the next day, both knee extensor concentric muscle strength of the participants was measured in the isokinetic system. The knee extension angles and the knee extensor strength were recorded as the mean values of the right and the left sides.Results:Passive knee extension angles of 17.1°±9.1° and 9.8°±5.7° and active knee extension angles of 17.8°±9.1° and 13.4°±6° were described as normative values in men and women, respectively. The cut-off values for the diagnosis of hamstring shortness were as follows: passive knee extension angle >32.2° for males and >19.2° for females and active knee extension angle >33.0° for males and >23.4° for females. A significant positive correlation was observed between knee extension angles and isokinetic knee extensor muscle strength in all participants. The knee extension angle and hamstring flexibility were not affected by dominance.Conclusion:The knee extension angles of healthy young people seem to be lower than the results currently reported in the literature. There s a positive correlation between knee extension angles and isokinetic knee extensor muscle strength. http://balkanmedicaljournal.org/archives/archive-detail/article-preview/the-cut-off-values-for-the-diagnosis-of-hamstring-/19700 Flexibilityhamstring musclesjointskneerange of motion |
| spellingShingle | Muhammed Şeref Yıldırım Filiz Tuna Derya Demirbağ Kabayel Necdet Süt The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors Balkan Medical Journal Flexibility hamstring muscles joints knee range of motion |
| title | The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors |
| title_full | The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors |
| title_fullStr | The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors |
| title_full_unstemmed | The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors |
| title_short | The Cut-off Values for the Diagnosis of Hamstring Shortness and Related Factors |
| title_sort | cut off values for the diagnosis of hamstring shortness and related factors |
| topic | Flexibility hamstring muscles joints knee range of motion |
| url |
http://balkanmedicaljournal.org/archives/archive-detail/article-preview/the-cut-off-values-for-the-diagnosis-of-hamstring-/19700
|
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