Publicação
Is the dimension of the proximal aponeurosis of biceps femoris long head a risk factor for a strain injury?
| Resumo: | Purpose: To determine i) the reliability of a semi-automated tracking method to quantify the BFlhApo (biceps femoris long head proximal aponeurosis) size (i.e area interface, average width, volume, and length) based on MRI (magnetic resonance imaging) data; and, ii) to examine if the BFlhApo size of elite footballers with history of BFlh (biceps femoris long head) injury differed compared to matched controls without a previous BFlh injury. Methods: Forty individuals performed a MRI in both thighs (31 with no BFlh strain history and 9 with a BFlh strain history) during the preseason period. To measure more precisely the BFlhApo size, a semi-automated tracking method was built and tested (intra- and inter-rater reliability). Comparisons of the BFlhApo size between thighs with history of BFlh injury (experimental group) and non-injured thighs (control group) were set, as well as in between groups (injured vs non injured; left vs right). Results: The analysis of the reliability using the semi-automated tracking method showed a good intra-rater and inter-rater reliability (ICC between 0.75 and 0.9, at 95% confidence interval). No statistically significant differences (P <0.05) were found in the BFlhApo size regarding to all thighs comparisons. Conclusions: A reliable measurement procedure was able to better quantify BFlhApo dimensions between individuals with and without history of BFlh injury. Individuals with history of BFlh injury suggest no significant differences in their BFlhApo dimensions compared to individuals without this history. Thus, it seems inappropriate to state that a smaller BFlhApo size is an independent risk factor for developing a BFlh injury. |
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| Autores principais: | Abrantes, Filipe Miguel Matos |
| Assunto: | Myotendinous junction Magnetic resonance imaging Hamstring injury Matlab Risk factor Soccer Interface area Average width Volume Length Junção miotendinosa Ressonância magnética Lesão dos isquiotibiais Matlab Fator de risco Futebol Área de interface Largura média Volume Comprimento |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | Purpose: To determine i) the reliability of a semi-automated tracking method to quantify the BFlhApo (biceps femoris long head proximal aponeurosis) size (i.e area interface, average width, volume, and length) based on MRI (magnetic resonance imaging) data; and, ii) to examine if the BFlhApo size of elite footballers with history of BFlh (biceps femoris long head) injury differed compared to matched controls without a previous BFlh injury. Methods: Forty individuals performed a MRI in both thighs (31 with no BFlh strain history and 9 with a BFlh strain history) during the preseason period. To measure more precisely the BFlhApo size, a semi-automated tracking method was built and tested (intra- and inter-rater reliability). Comparisons of the BFlhApo size between thighs with history of BFlh injury (experimental group) and non-injured thighs (control group) were set, as well as in between groups (injured vs non injured; left vs right). Results: The analysis of the reliability using the semi-automated tracking method showed a good intra-rater and inter-rater reliability (ICC between 0.75 and 0.9, at 95% confidence interval). No statistically significant differences (P <0.05) were found in the BFlhApo size regarding to all thighs comparisons. Conclusions: A reliable measurement procedure was able to better quantify BFlhApo dimensions between individuals with and without history of BFlh injury. Individuals with history of BFlh injury suggest no significant differences in their BFlhApo dimensions compared to individuals without this history. Thus, it seems inappropriate to state that a smaller BFlhApo size is an independent risk factor for developing a BFlh injury. |
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