Lateral and antagonistic asymmetries of lumbo-pelvic-hip complex stabilizing muscles in young Polish women in tensiomyography imaging
Dobrochna Fryc , Karol Bibrowicz , Anna Lipowicz
AbstractIn terms of pelvic torsion muscle tissue seem to be underestimated. However, it is not clear what is the actual place of muscles in cause and effect chain of posture abnormality pathogenesis. Aim of the study was to characterize morpho-functionally specific group of superficial muscles, that are crucial in human bipedal stability, especially in terms of lateral and antagonistic asymmetries. Material was formed with a group of 34 women aged 22.7±2.8 years (19-29 yr), 166.2±5.6 cm (156-182 cm) of height, 58.4±4.9 kg (48-67 kg). Four of women were excluded because of incomplete data collection. 12 muscles were examined including: right and left Rectus abdominis, External oblique, Erector spinae, Gluteus maximus, Rectus femoris and Biceps femoris. Method selected for the study was tensiomyography with the use of TMGTM science for body evolution apparatus. Results showed lateral asymmetries in External oblique (p=0.01) and Gluteus maximus (p<0.001). Right abdominal muscle appeared to manifest shorter delay time. Gluteus muscle of this side revealed greater maximal displacement as well as longer contraction and summary contraction time. Antagonistic asymmetries in time parameters were found in both tested dyads (Rectus abdominis-Erector spinae and Rectus femoris-Biceps femoris). Rectus abdominis and Biceps femoris shoved higher values revealing more tonic character. In examined group, there are unidirectional functional asymmetries both in lateral and antagonistic muscle dyads. Those differences manifest in TMG procedure, therefore tensiomyography appeared to be a reasonable method for further physiotherapeutic studies and widening knowledge about lumbo-hip-pelvic complex stabilizing muscles.
|Journal series||Acta Kinesiologica, ISSN 1840-2976, e-ISSN 1840-3700, (N/A 140 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||posture, pelvis, stability|
|Score||= 140.0, 22-04-2021, ArticleFromJournal|
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