Publication: Sagittal spinal morphotype assessment in 8
to 15 years old Inline Hockey players
Authors
Moreno Alcaraz, Victor Jesús ; Sainz de Baranda Andújar, Pilar ; Cejudo Palomo, Antonio ; Martínez Romero, María Teresa ; Aparicio Sarmiento, Alba ; Santonja Medina, Fernando
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Publisher
PeerJ Inc
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DOI
https://doi.org/10.7717/peerj.8229
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info:eu-repo/semantics/article
Description
© 2020 Sainz de Baranda et al. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/
This document is the Published Manuscript, version of a Published Work that appeared in final form in PeerJ. To access the final edited and published work see https://doi.org/10.7717/peerj.8229
Abstract
Background: Physiological sagittal spinal curvatures play an important role in health
and performance in sports. For that reason, several scientific studies have assessed
spinal morphology in young athletes. However, to our knowledge, no study has
assessed the implications of Inline Hockey (IH) practice on sagittal integrative spinal
morphotype in adolescent players.
Objectives: The aims of the present study were to describe habitual sagittal spinal
posture in young federated IH players and its relationship with training load and to
determine the sagittal integrative spinal morphotype in these players.
Methods: An observational analysis was developed to describe the sagittal spinal
morphotype in young federated IH players. A total of 74 IH players from the
Technification Plan organized by the Skating Federation of the Valencian
Community (aged from 8 to 15 years) participated in the study. Thoracic and lumbar
curvatures of the spine were measured in a relaxed standing position (SP), in a slump
sitting position (SSP) and in maximum flexion of the trunk (MFT) to determine
the “Sagittal Integrative Morphotype” of all players. An unilevel inclinometer was
used to quantify the sagittal spinal curvatures. The Hip Joint Angle test was used to
quantify the Lumbo-Horizontal angle in flexion (L-H fx) of all participants with a
goniometer.
Results: When thoracic curvature was analyzed according to normality references,
it was found that 64.9% of IH players had thoracic hyperkyphosis in a SSP,
while 60.8% and 74.3% of players were classified as normal in a SP and in MFT,
respectively. As for the lumbar curve, 89.2% in a SP and 55.4% in MFT were normal,
whereas 68.9% of IH players presented lumbar hyperkyphosis in a SSP. Regarding the
“Sagittal Integrative Morphotype,” only 17.6% of players were classified as “Normal”
in the three measured positions for the thoracic curve, while 37.8% had “Thoracic
Hyperkyphosis” and 41.8% presented “Functional Thoracic Hyperkyphosis.” As for
the “Sagittal Integrative Lumbar Morphotype,” only 23% of athletes had a normal
curve in the three positions, whereas 66.2% presented “Functional Lumbar
Hyperkyphosis.” When the L-H fx was evaluated, the results showed that only 16.2%
of the athletes were classified as normal.
Conclusions: Federative IH practice seems to cause specific adaptations in spinal
sagittal morphotype. Taking into account the “Sagittal Integrative Morphotype” only 17.6% IH players presented “Normal Morphotype” with a normal thoracic kyphosis
in the three measured positions, while only 23% IH players presented “Normal
Morphotype” with a normal lumbar curvature in the three assessed positions.
Furthermore, only 16.2% of IH players showed normal pelvic tilt. Exercise programs
to prevent or rehabilitate these imbalances in young IH players are needed.
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Citation
PeerJ, 2020, Vol. 8 : e8229
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