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Age-associated decline of muscle mass, grip strength and gait speed: a 4-year longitudinal study of 3018 community-dwelling older Chinese.
Geriatr Gerontol Int 2014; 14 Suppl 1:76-84GG

Abstract

AIMS

Studies about sarcopenia in Asia are fewer, and started later than in Europe and America. We attempted to examine the decline in muscle mass, grip strength and gait speed in a cohort of older Chinese prospectively over 4 years.

METHODS

We recruited 4000 community-living Chinese older than 64 years, and measured their appendicular skeletal mass (ASM) by dual-energy X-ray absorptiometry, grip strength, and gait speed at baseline and after 2 years. Muscle mass and gait speed were additionally measured after 4 years.

RESULTS

After 4 years, 3018 participants completed all the measurements. The annualized decline in grip strength (-0.798 kg/year vs -1.239 kg/year) and gait speed (-0.019 m/s/year vs - 0.025 m/s/year) was faster in women than in men. Muscle mass was relatively preserved in comparison with grip strength and gait speed. The percentage loss of ASM in 4 years was -1.59% and -2.02% in men and women, respectively. The percentage decline in gait speed after 4 years was -8.2% in men and -9.0% in women. However, the decline in grip strength was more rapid, particularly in women, which was -10.0% in 2 years and less so in men, -3.85% in 2 years.

CONCLUSION

Compared with black people and white people, the older Chinese have less muscle mass, weaker grip strength and slower gait speed. Although the rate of loss of ASM was modest, the decline in gait speed was rapid and the decline in grip strength was particularly fast in older Chinese women.

Authors+Show Affiliations

The S. H. Ho Center for Gerontology and Geriatrics, The Chinese University of Hong Kong, Au Tau, Hong Kong; Department of Medicine and Geriatrics, Pok Oi Hospital, Au Tau, Hong Kong.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study

Language

eng

PubMed ID

24450564

Citation

Auyeung, Tung Wai, et al. "Age-associated Decline of Muscle Mass, Grip Strength and Gait Speed: a 4-year Longitudinal Study of 3018 Community-dwelling Older Chinese." Geriatrics & Gerontology International, vol. 14 Suppl 1, 2014, pp. 76-84.
Auyeung TW, Lee SW, Leung J, et al. Age-associated decline of muscle mass, grip strength and gait speed: a 4-year longitudinal study of 3018 community-dwelling older Chinese. Geriatr Gerontol Int. 2014;14 Suppl 1:76-84.
Auyeung, T. W., Lee, S. W., Leung, J., Kwok, T., & Woo, J. (2014). Age-associated decline of muscle mass, grip strength and gait speed: a 4-year longitudinal study of 3018 community-dwelling older Chinese. Geriatrics & Gerontology International, 14 Suppl 1, pp. 76-84. doi:10.1111/ggi.12213.
Auyeung TW, et al. Age-associated Decline of Muscle Mass, Grip Strength and Gait Speed: a 4-year Longitudinal Study of 3018 Community-dwelling Older Chinese. Geriatr Gerontol Int. 2014;14 Suppl 1:76-84. PubMed PMID: 24450564.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Age-associated decline of muscle mass, grip strength and gait speed: a 4-year longitudinal study of 3018 community-dwelling older Chinese. AU - Auyeung,Tung Wai, AU - Lee,Shun Wah Jenny, AU - Leung,Jason, AU - Kwok,Timothy, AU - Woo,Jean, PY - 2013/11/15/accepted PY - 2014/1/24/entrez PY - 2014/1/24/pubmed PY - 2014/10/29/medline KW - elderly KW - gait speed KW - grip strength KW - longitudinal study KW - sarcopenia SP - 76 EP - 84 JF - Geriatrics & gerontology international JO - Geriatr Gerontol Int VL - 14 Suppl 1 N2 - AIMS: Studies about sarcopenia in Asia are fewer, and started later than in Europe and America. We attempted to examine the decline in muscle mass, grip strength and gait speed in a cohort of older Chinese prospectively over 4 years. METHODS: We recruited 4000 community-living Chinese older than 64 years, and measured their appendicular skeletal mass (ASM) by dual-energy X-ray absorptiometry, grip strength, and gait speed at baseline and after 2 years. Muscle mass and gait speed were additionally measured after 4 years. RESULTS: After 4 years, 3018 participants completed all the measurements. The annualized decline in grip strength (-0.798 kg/year vs -1.239 kg/year) and gait speed (-0.019 m/s/year vs - 0.025 m/s/year) was faster in women than in men. Muscle mass was relatively preserved in comparison with grip strength and gait speed. The percentage loss of ASM in 4 years was -1.59% and -2.02% in men and women, respectively. The percentage decline in gait speed after 4 years was -8.2% in men and -9.0% in women. However, the decline in grip strength was more rapid, particularly in women, which was -10.0% in 2 years and less so in men, -3.85% in 2 years. CONCLUSION: Compared with black people and white people, the older Chinese have less muscle mass, weaker grip strength and slower gait speed. Although the rate of loss of ASM was modest, the decline in gait speed was rapid and the decline in grip strength was particularly fast in older Chinese women. SN - 1447-0594 UR - https://www.unboundmedicine.com/medline/citation/24450564/Age_associated_decline_of_muscle_mass_grip_strength_and_gait_speed:_a_4_year_longitudinal_study_of_3018_community_dwelling_older_Chinese_ L2 - https://doi.org/10.1111/ggi.12213 DB - PRIME DP - Unbound Medicine ER -