Abstract：
PURPOSE:To evaluate the effects of aging on skeletal muscle stiffness in relaxed and contracted status using shear wave elastography (SWE). MATERIALS AND METHODS:A total of 57 participants were enrolled to this institutional review board approved prospective study. Medial head of the gastrocnemius muscle (GM) of all participants were examined bilaterally by a single radiologist in prone position. Muscle thickness, stiffness values in both relaxed and contracted status were measured. Stiffness increase rate (SIR) was calculated for all muscles. The Spearman's correlation test was used for correlation analyses. Mann-Whitney U test was used to compare subgroups. RESULTS:The mean age of the participants was 41.15 ± 16.19 (range, 18-74). The means of stiffness values of medial head of GM were 12.51 ± 2.56 kPa and 81.74 ± 15.77 kPa in relaxed and contracted status, respectively. The mean of SIR values was 5.62 ± 1.05 (range, 3.18-8.66). The stiffness values of relaxed and contracted medial head of GM had moderate to strong inverse correlations with age for both dominant and non-dominant extremities (r range: -0.703 to -0.590). Age subgroup analyses revealed significant differences in muscle thickness and stiffness values, whereas no significant difference was found in SIR values. CONCLUSION:In conclusion, despite the decrease in stiffness of skeletal muscle with advancing age, SIR remained similar. Any improvement in stiffness values of skeletal muscle in relaxed status may play pivotal role in the management of sarcopenia.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Şendur HN,Cindil E,Cerit MN,Kılıç P,Gültekin Iİ,Oktar SÖdoi
10.1016/j.ejrad.2020.109038subject
Has Abstractpub_date
2020-07-01 00:00:00pages
109038eissn
0720-048Xissn
1872-7727pii
S0720-048X(20)30227-8journal_volume
128pub_type
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