Mehmet Emin Kuyumcu1, Meltem Halil2, Özgür Kara2, Bledjan Çuni3, Gökhan Çağlayan3, Serdar Güven3, Yusuf Yeşil2, Güneş Arık2, Burcu Balam Yavuz2, Mustafa Cankurtaran2, Levent Özçakar3. 1. Hacettepe University Medical School, Department of Internal Medicine Division of Geriatric Medicine, 06100 Sıhhıye, Ankara, Turkey. Electronic address: mekuyumcu@gmail.com. 2. Hacettepe University Medical School, Department of Internal Medicine Division of Geriatric Medicine, 06100 Sıhhıye, Ankara, Turkey. 3. Hacettepe University Medical School, Department of Physical and Medicine Rehabilitation, 06100 Sıhhıye, Ankara, Turkey.
Abstract
BACKGROUND/ OBJECTIVES: To sonographically assess the muscle mass and architecture of sarcopenic elderly subjects, and to explore the utility of ultrasound (US) measurements in predicting sarcopenia. METHODS: One hundred elderly subjects were enrolled in this cross-sectional study. Mean age value of our study population was 73.08±6.18years. The diagnosis of sarcopenia was confirmed by measuring fat-free mass index (using bioelectrical impedance analysis) and handgrip strength. Calf circumference was measured and US evaluations comprised bilateral gastrocnemius muscle (MG) thickness, fascicle length and pennate angles; subcutaneous fat and dermis thicknesses in the calf. RESULTS: Bilateral muscle thickness and fascicle length values were significantly lower in patients with sarcopenia (both p<0.05). Sarcopenic and nonsarcopenic subjects had similar pennate angles, subcutaneous fat and dermis thicknesses. Median thickness ratio (100×t (MG)/[t (subcutaneous tissue)+t (dermis)+t (MG)]) values were 64% (40-88%) in the right and 64% (38-86%) in the left calf. Bilateral MG thickness and fascicle length values showed high sensitivity in predicting sarcopenia (all values>76.92%). CONCLUSIONS: Gastrocnemius muscle thickness and fascicle length values are lower in sarcopenic elderly and these two parameters can serve as alternative measurements for predicting/quantifying sarcopenia. Calf circumference measurements alone may not be appropriate for assessing sarcopenia. Instead, US imaging can conveniently be used to evaluate different compartments of the musculoskelal system in (sarcopenic) elderly.
BACKGROUND/ OBJECTIVES: To sonographically assess the muscle mass and architecture of sarcopenic elderly subjects, and to explore the utility of ultrasound (US) measurements in predicting sarcopenia. METHODS: One hundred elderly subjects were enrolled in this cross-sectional study. Mean age value of our study population was 73.08±6.18years. The diagnosis of sarcopenia was confirmed by measuring fat-free mass index (using bioelectrical impedance analysis) and handgrip strength. Calf circumference was measured and US evaluations comprised bilateral gastrocnemius muscle (MG) thickness, fascicle length and pennate angles; subcutaneous fat and dermis thicknesses in the calf. RESULTS: Bilateral muscle thickness and fascicle length values were significantly lower in patients with sarcopenia (both p<0.05). Sarcopenic and nonsarcopenic subjects had similar pennate angles, subcutaneous fat and dermis thicknesses. Median thickness ratio (100×t (MG)/[t (subcutaneous tissue)+t (dermis)+t (MG)]) values were 64% (40-88%) in the right and 64% (38-86%) in the left calf. Bilateral MG thickness and fascicle length values showed high sensitivity in predicting sarcopenia (all values>76.92%). CONCLUSIONS: Gastrocnemius muscle thickness and fascicle length values are lower in sarcopenic elderly and these two parameters can serve as alternative measurements for predicting/quantifying sarcopenia. Calf circumference measurements alone may not be appropriate for assessing sarcopenia. Instead, US imaging can conveniently be used to evaluate different compartments of the musculoskelal system in (sarcopenic) elderly.
Authors: Michael O Harris-Love; Tomas I Gonzales; Qi Wei; Catheeja Ismail; Johannah Zabal; Paula Woletz; Loretta DiPietro; Marc R Blackman Journal: J Ultrasound Med Date: 2018-12-12 Impact factor: 2.153
Authors: Satoshi Yuguchi; Ryoma Asahi; Tomohiko Kamo; Masato Azami; Hirofumi Ogihara Journal: Int J Environ Res Public Health Date: 2022-03-29 Impact factor: 3.390
Authors: Sunyoung Kim; Miji Kim; Yunhwan Lee; ByungSung Kim; Tai Young Yoon; Chang Won Won Journal: J Korean Med Sci Date: 2018-04-26 Impact factor: 2.153