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Gastrocnemius thickness by ultrasonography indicates the low skeletal muscle mass in Japanese elderly people.
Arch Gerontol Geriatr. 2020 Sep - Oct; 90:104093.AG

Abstract

BACKGROUND

This study aimed to examine the relationship between gastrocnemius thickness by ultrasonography and the skeletal muscle mass in Japanese elderly people.

METHODS

The total of 195 healthy Japanese aged ≥65 years participated (average age, 72.4 ± 4.3y; male, n = 72). The skeletal muscle mass index (SMI) was measured using the bioelectrical impedance analysis (BIA) and the gastrocnemius thickness and collected echo intensity (CEI) were measured using ultrasonography. The low SMI was defined as <7.0 kg/m2 in men and <5.7 kg/m2 in women, and participants were classified into the low SMI and the normal group. Association of the gastrocnemius thickness with the low SMI was analyzed by the logistic regression analysis after adjusting age, gender, body mass index (BMI), physical performances and CEI. The cut-off value of gastrocnemius thickness to indicate the low SMI was calculated by a receiver operating characteristic curve analysis.

RESULTS

The low SMI rate was 16.9% (n = 33). BMI was significantly lower (19.9 vs 22.5 kg/m2; p < 0.01), the gastrocnemius thickness lower (11.0 vs 13.3 mm; p < 0.01), and CEI higher (97.5 vs 87.0; p = 0.02) in the low SMI group than those in the normal group. The gastrocnemius thickness was independently associated with the low SMI (OR, 0.584; 95% CI, 0.416-0.818; p < 0.01). The cut-off value of gastrocnemius thickness was <11.6 mm (AUC, 0.83; sensitivity, 0.83; specificity, 0.73; p < 0.01).

CONCLUSION

Gastrocnemius thickness by ultrasonography was associated with low skeletal muscle mass, and the cut-off value to indicate the low skeletal muscle mass was revealed.

Authors+Show Affiliations

Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Japan. Electronic address: s-yuguchi@jhsu.ac.jp.Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Japan.Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Japan.Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Japan.Department of Physical Therapy, School of Health Sciences, Japan University of Health Sciences, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32526562

Citation

Yuguchi, Satoshi, et al. "Gastrocnemius Thickness By Ultrasonography Indicates the Low Skeletal Muscle Mass in Japanese Elderly People." Archives of Gerontology and Geriatrics, vol. 90, 2020, p. 104093.
Yuguchi S, Asahi R, Kamo T, et al. Gastrocnemius thickness by ultrasonography indicates the low skeletal muscle mass in Japanese elderly people. Arch Gerontol Geriatr. 2020;90:104093.
Yuguchi, S., Asahi, R., Kamo, T., Azami, M., & Ogihara, H. (2020). Gastrocnemius thickness by ultrasonography indicates the low skeletal muscle mass in Japanese elderly people. Archives of Gerontology and Geriatrics, 90, 104093. https://doi.org/10.1016/j.archger.2020.104093
Yuguchi S, et al. Gastrocnemius Thickness By Ultrasonography Indicates the Low Skeletal Muscle Mass in Japanese Elderly People. Arch Gerontol Geriatr. 2020 Sep - Oct;90:104093. PubMed PMID: 32526562.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Gastrocnemius thickness by ultrasonography indicates the low skeletal muscle mass in Japanese elderly people. AU - Yuguchi,Satoshi, AU - Asahi,Ryoma, AU - Kamo,Tomohiko, AU - Azami,Masato, AU - Ogihara,Hirofumi, Y1 - 2020/05/20/ PY - 2020/03/02/received PY - 2020/04/14/revised PY - 2020/05/02/accepted PY - 2020/6/12/pubmed PY - 2020/6/12/medline PY - 2020/6/12/entrez KW - Gastrocnemius muscle KW - Muscle thickness KW - Skeletal muscle mass (SMI) KW - Ultrasonography SP - 104093 EP - 104093 JF - Archives of gerontology and geriatrics JO - Arch Gerontol Geriatr VL - 90 N2 - BACKGROUND: This study aimed to examine the relationship between gastrocnemius thickness by ultrasonography and the skeletal muscle mass in Japanese elderly people. METHODS: The total of 195 healthy Japanese aged ≥65 years participated (average age, 72.4 ± 4.3y; male, n = 72). The skeletal muscle mass index (SMI) was measured using the bioelectrical impedance analysis (BIA) and the gastrocnemius thickness and collected echo intensity (CEI) were measured using ultrasonography. The low SMI was defined as <7.0 kg/m2 in men and <5.7 kg/m2 in women, and participants were classified into the low SMI and the normal group. Association of the gastrocnemius thickness with the low SMI was analyzed by the logistic regression analysis after adjusting age, gender, body mass index (BMI), physical performances and CEI. The cut-off value of gastrocnemius thickness to indicate the low SMI was calculated by a receiver operating characteristic curve analysis. RESULTS: The low SMI rate was 16.9% (n = 33). BMI was significantly lower (19.9 vs 22.5 kg/m2; p < 0.01), the gastrocnemius thickness lower (11.0 vs 13.3 mm; p < 0.01), and CEI higher (97.5 vs 87.0; p = 0.02) in the low SMI group than those in the normal group. The gastrocnemius thickness was independently associated with the low SMI (OR, 0.584; 95% CI, 0.416-0.818; p < 0.01). The cut-off value of gastrocnemius thickness was <11.6 mm (AUC, 0.83; sensitivity, 0.83; specificity, 0.73; p < 0.01). CONCLUSION: Gastrocnemius thickness by ultrasonography was associated with low skeletal muscle mass, and the cut-off value to indicate the low skeletal muscle mass was revealed. SN - 1872-6976 UR - https://www.unboundmedicine.com/medline/citation/32526562/Gastrocnemius_thickness_by_ultrasonography_indicates_the_low_skeletal_muscle_mass_in_Japanese_elderly_people_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0167-4943(20)30087-X DB - PRIME DP - Unbound Medicine ER -
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