This study has purpose to investigated the association of protein intake with sarcopenia in the institutionalized elderly at south tangerang

Data were collected using interview with subjects or with care giver to know the basic characteristic of subjects. Anthropometric measurements were done body weight in kilograms was measured using SECA scale. Body height in meters was predicted by knee height measurement using knee height caliper. Body mass index (BMI) was calculated as weight per height square. Fat free mass was examined using bioelectrical impedance analyzer Tanita type SC-330. Independency was assessed using Barthel index. Protein intake was measured using 2x24 hour food recall and analyzed using a computer program Nutrisurvey 2007, data were compare to Recommended Dietary Allowances established for Indonesian 2018. Handgrip muscle strength was examined using Jamar handgrip dynamometer. Physical performance was measured using Short Physical Performance Battery test. Sarcopenia was diagnosed using Asian Working Group on Sarcopenia.

All data collected were analyzed using Statistical Package for the Social Science (SPSS) version 20 for windows. Nominal data were described using frequency, n (%). Normality of data was tested using Kolmogorov-Smirnov test with normal distribution (p>0.05) described using mean and SD while not normal distribution (p<0.05) described using median and range minimum-maximum. The investigators used Independent T-test analysis to investigate the association.

Inclusion Criteria:

1. Inclusion criteria were being male or female
2. aged more than 60 years old
3. signed inform consent form and literate with help from companion

Exclusion Criteria:

1. subjects with history of cancer
2. history of upper and lower extremities weakness
3. history of chronic heart failure disease
4. chronic obstructive pulmonary disease

Subjects were recruited using proportional random sampling method