Body composition measurements were obtained using a bioelectrical impedance analyzer (BIA); muscle strength was determined by handgrip strength (HS); and physical function was evaluated by the subjects' 6-m gait speed (GS). 
bioelectrical impedance analyzer (BIA)
Archives of gerontology and geriatrics
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D044466:Asian People; D001823:Body Composition; D002681:China; D017097:Electric Impedance; D005260:Female; D005684:Gait; D018737:Hand Strength; D006801:Humans; D008297:Male; D053580:Muscle Strength; D018482:Muscle, Skeletal; D010809:Physical Fitness; D015995:Prevalence; D012016:Reference Values; D055948:Sarcopenia
Zeng Ping P ;Wu Sinan S ;Han Yiwen Y ;Liu Jingmin J ;Zhang Yi Y ;Zhang Enyi E ;Zhang Yan Y ;Gong Huan H ;Pang Jing J ;Tang Zhili Z ;Liu Hongxing H ;Zheng Xiuyuan X ;Zhang Tiemei T 