scholarly journals Physical Characteristics of College Runners with a History of Medial Tibial Stress Syndrome: Range of Motion of the Toe and Muscle Cross-sectional Area of the Lower Leg

2017 ◽  
Vol 32 (1) ◽  
pp. 57-61
Author(s):  
Kensuke AOKI ◽  
Yuichi MATSUBARA ◽  
Toshikazu MIYAMOTO
Keyword(s):  
Range Of Motion ◽  
Lower Leg ◽  
Physical Characteristics ◽  
Cross Sectional Area ◽  
Medial Tibial Stress Syndrome ◽  
Sectional Area ◽  
Cross Sectional ◽  
Stress Syndrome ◽  
History Of ◽  
Muscle Cross Sectional Area

scholarly journals Validity Of Lower Leg Muscle Cross-sectional Area Measurements Using Ultrasound Imaging Compared To MRI

2020 ◽  
Vol 52 (7S) ◽  
pp. 82-82
Author(s):  
Aaron W. Johnson ◽  
Christopher Thompson ◽  
Victoria Violette ◽  
Dustin A. Bruening ◽  
Sarah T. Ridge
Keyword(s):  
Ultrasound Imaging ◽  
Lower Leg ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Leg Muscle ◽  
Muscle Cross Sectional Area

Lower Leg Morphology and Stretch-Shortening Cycle Performance of Dancers

2018 ◽  
Vol 34 (3) ◽  
pp. 211-219 ◽  
Author(s):  
Paige E. Rice ◽  
Herman van Werkhoven ◽  
Edward K. Merritt ◽  
Jeffrey M. McBride
Keyword(s):  
Lower Leg ◽  
Fracture Load ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Stress Strain ◽  
Strain Index ◽  
Cross Sectional ◽  
Custom Made ◽  
Stretch Shortening Cycle ◽  
Muscle Cross Sectional Area

Greater levels of bone ultimate fracture load, bone stress–strain index, muscle cross-sectional area, and maximal voluntary isometric plantarflexion (MVIP) strength of the lower leg may be adaptations from chronic exposure to stretch-shortening cycle (SSC) actions. Dancers, a population that habitually performs SSC movements primarily about the ankle joint, may serve as a novel population to gain broader understanding of SSC function. A total of 10 female collegiate dancers and 10 untrained controls underwent peripheral quantitative computed tomography scans of both lower legs and performed MVIPs, countermovement hops, and drop hops at 20, 30, and 40 cm on a custom-made inclined sled. Dancers had greater right and left ultimate fracture load values and significantly (P ≤ .05) greater left leg stress–strain index than controls. Dancers had significantly larger right and left muscle cross-sectional area and MVIP values and hopped significantly higher during all hopping conditions in comparison with controls. Average force–time and power–time curves revealed significantly greater relative force and power measurements during the concentric phase for all hopping conditions in dancers when compared with controls. This investigation provides evidence that dance may be a stimulus for positive muscle and bone adaptations, strength levels, and enhanced SSC capabilities.

scholarly journals Is there a correlation between upper lumbar disc herniation and multifidus muscle degeneration? A retrospective study of MRI morphology

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Chong Liu ◽  
Jiang Xue ◽  
Jingjing Liu ◽  
Gang Ma ◽  
Abu Moro ◽  
...  
Keyword(s):  
Lumbar Disc Herniation ◽  
Lumbar Disc ◽  
Fatty Infiltration ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Muscle Degeneration ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Upper Lumbar Disc Herniation ◽  
Muscle Cross Sectional Area

Abstract Background The purpose of the study is to investigate the correlation between upper lumbar disc herniation (ULDH) and multifidus muscle degeneration via the comparison of width, the cross-sectional area and degree of fatty infiltration of the lumbar multifidus muscle. Methods Using the axial T2-weighted images of magnetic resonance imaging as an assessment tool, we retrospectively investigated 132 patients with ULDH and 132 healthy individuals. The total muscle cross-sectional area (TMCSA) and the pure muscle cross-sectional area (PMCSA) of the multifidus muscle at the L1/2, L2/3, and L3/4 intervertebral disc levels were measured respectively, and in the meantime, the average multifidus muscle width (AMMW) and degree of fatty infiltration of bilateral multifidus muscle were evaluated. The resulting data were analyzed to determine the presence/absence of statistical significance between the study and control groups. Multivariate logistical regression analyses were used to evaluate the correlation between ULDH and multifidus degeneration. Results The results of the analysis of the two groups showed that there were statistically significant differences (p < 0.05) between TMCSA, PMCSA, AMMW and degree of fatty infiltration. The multivariate logistic regression analysis indicated that the TMCSA, PMCSA, AMMW and the degree of fatty infiltration of multifidus muscle were correlated with ULDH, and the differences were statistically significant (P < 0.05). Conclusions A correlation could exist between multifidus muscles degeneration and ULDH, that may be a process of mutual influence and interaction. Lumbar muscle strengthening training could prevent and improve muscle atrophy and degeneration.

Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling

2015 ◽  
Vol 116 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Felipe Damas ◽  
Stuart M. Phillips ◽  
Manoel E. Lixandrão ◽  
Felipe C. Vechin ◽  
Cleiton A. Libardi ◽  
...  
Keyword(s):  
Resistance Training ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area
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