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Abstrak :
Latar Belakang: Sarkopenia merupakan salah satu sindrom geriatri yang dapat menyebabkan luaran yang buruk. Dibutuhkan pemeriksaan yang lebih sederhana dibandingkan Bioelectrical Impedance Analysis (BIA) atau Dual energy X- ray Absorptiometry (DXA) untuk mengukur massa otot sebagai komponen penting sarkopenia. Namun, belum ada studi di Indonesia yang meneliti perannya dalam memprediksi massa otot pada pasien usia 60 tahun atau lebih. Tujuan: Mengetahui performa diagnostik lingkar betis untuk estimasi massa otot sebagai komponen sarkopenia pada pasien usia 60 tahun atau lebih. Metode: Penelitian ini merupakan suatu uji diagnostik menggunakan desain uji potong lintang yang dilakukan di poliklinik geriatri Departemen Ilmu Penyakit Dalam FKUI-RSCM selama bulan April-Juni 2018. Pengukuran massa otot menggunakan DXA dan penentuan titik potong berdasarkan Asian Working Group of Sarcopenia (AWGS). Hasil: Dari 120 subjek didapatkan 46 lelaki (38,3%) dan 74 perempuan (61,7%). Didapatkan titik potong lingkar betis kelompok lelaki dibawah 34 cm (sensitivitas 64.7%, spesifitas 79.3%, NDP 64.7%, NDN 79.3%, AUC 73.1%) dan 29 cm untuk perempuan (sensitivitas 71.4%, spesifitas 95.5%, NDP 62.5%, NDN 97.0%, AUC 96.4%). Simpulan: Akurasi diagnostik lingkar betis cukup baik sebagai prediktor massa otot pada pasien perempuan usia 60 tahun atau lebih.

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Background: Sarcopenia is one of the geriatric syndromes that lead to poor outcomes. A simpler method than Bioelectrical Impedance Analysis (BIA) or Dual energy X- ray Absorptiometry (DXA) is needed to measure muscle mass as essential component of sarcopenia. Previous studies have shown calf circumference (CC) as surrogate marker of muscle mass. However there has been no study on the role of CC in predicting muscle mass in both gender of elderly outpatient. Objectives: To investigate the diagnostic performance of CC to estimate muscle mass in elderly outpatient. Methods: A cross sectional study was conducted at Geriatric Outpatient Clinic of Cipto Mangunkusumo Hospital Jakarta during April-June 2018, using DXA as a reference test for measuring muscle mass. Asian Working Group of Sarcopenia (AWGS) criteria was used to classify muscle mass as normal or low. Results: Of the 120 subjects, 46 subjects were male (38.3%) and 74 were female (61.7%).The optimal Cut-off for CC that indicate low muscle mass was 34 cm for (sensitivity 64.7%, specificity 79.3%, PPV 64.7%, NPV 79.3%, AUC 73.1%) and 29 cm for female (sensitivity 71.4%, specificity 95.5%, PPV 62.5%, NPV 97.0%, AUC 96.4%). Conclusion: CC can be used to estimate muscle mass in female elderly outpatient, with good diagnostic performance.

Abstrak :
Latar Belakang: Sarkopenia merupakan sindroma geriatri baru tertinggi dengan luaran klinis yang buruk, sehingga perlu dilakukan penapisan. Instrumen penapisan standar memiliki sensitivitas yang rendah. Mini Sarcopenia Risk Assessment (MSRA) merupakan instrumen baru dengan performa penapisan beragam, sehingga perlu diteliti lagi. Penambahan lingkar betis (LB) pada MSRA diharapkan mendapatkan hasil penapisan yang lebih baik. Tujuan: Mengetahui performa penapisan instrumen MSRA dan MSRA-LB terhadap diagnosis sarkopenia pada pasien lansia. Metode: studi potong lintang dengan subjek lansia di Poliklinik Terpadu Geriatri, Rumah Sakit Umum Pusat Nasional Cipto Mangunkusumo telah dilakukan bulan Oktober hingga Desember 2022. Data diambil melalui wawancara dan pemeriksaan antropometri, LB, kekuatan genggaman tangan, indeks massa otot apendikular, dan penilaian performa fisik. Hasil: Diperoleh subjek sebesar 118 pasien dengan proporsi sarkopenia sebesar 19 pasien (16,1%) berdasarkan AWGS 2019. Sensitivitas instrumen MSRA-7, MSRA-5, MSRA-7-LB dan MSRA-5-LB secara berurutan adalah 78,95%, 57,89%, 57,89% dan 42,11%. Sedangkan spesifisitas adalah 30,30%, 46,46%, 87,88% and 93,94%. Model MSRA-LB meningkatkan akurasi diagnosis secara bermakna p=0,003 pada MSRA-7-LB dan p= 0,005 pada MSRA-5-LB p=0,00. Simpulan: Performa penapisan intrumen MSRA memiliki sensitivitas tinggi pada versi 7 butir pertanyaan. Penambahan lingkar betis memperbaiki akurasi diagnosis instrumen MSRA namun tidak meningkatkan sensitivitas instrumen. ......Background: Sarcopenia were the highest prevalence in current geriatric syndrome with unfavorable clinical outcomes and standardized tools to screen was unsensitive. Mini Sarcopenia Risk Assessment (MSRA) has been developed to screen sarcopenia. Even, the performance is inconsistent, that is needed to be evaluated. Adding of calf circumference (CC) was conducted to find better screening performance. Objective: To determine the screening performance of the MSRA and MSRA-CC instruments. Methods: A cross-sectional study was conducted in elderly outpatients Cipto Mangunkusumo Central General Hospital, from October to December 2022. Data were collected through interviews and anthropometric examinations, measurements of body weight, hand grip strength, appendicular muscle mass index, and physical performance. Result: Eligible subjects was 118 patients base on inclusion criteria. Sarcopenia were found 19 (16,1%) subjects based on the 2019 AWGS criteria. The sensitivity values of MSRA-7, MSRA-5, MSRA-7-CC, MSRA-5-CC were 78,95%, 57,89%, 57,89% and 42,11%, respectively. The specificities were 30,30%, 46,46%, 87,88% and 93,94%, respectively. Combination MSRA-CC improved diagnostic accuracy with p value of 7 and 5 version 0,003 and 0,005, respectively. Summary: The high sensitivity screening performance of MSRA has been found in 7 item questions version. Combination MSRA-CC improved diagnostic accuracy of sarcopenia without increasing of sensitivity those instruments.

Abstrak :
Latar belakang: Keterbatasan mobilitas pada kelompok lanjut usia  berkaitan dengan rendahnya kualitas hidup, menurunnya akses ke layanan kesehatan, meningkatknya mortalitas, morbiditas, dan beban pembiayaan kesehatan. Terdapat berbagai faktor yang mempengaruhi fungsi mobilitas. Oleh karena itu, penelitian ini bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan fungsi mobilitas dan mendapatkan hubungan antara usia, jenis kelamin, status gizi, kadar vitamin D, sarkopenia dan penyakit penyerta dengan fungsi mobilitas pada pasien geriatri. Metode: penelitian cross-sectional ini dilakukan antara Desember 2022 sampai Januari 2023 di Poliklinik Geriatri RS Cipto Mangunkusumo Jakarta Indonesia. Pasien yang dapat berjalan mandiri dengan atau tanpa alat bantu diikutsertakan dalam penelitian. Fungsi mobilitas dinilai dengan Timed Up and Go (TUG) Test dan skor TUG dihubungkan dengan usia, jenis kelamin, status gizi, kadar vitamin D, sarkopenia, dan komorbid. Hasil: Dari hasil analisis multivariat didapatkan bahwa kelompok usia lebih dari 80  tahun memiliki risiko penurunan fungsi mobilitas 1,9 kali lebih tinggi dengan IK 95% 1,139-3,118. Lansia perempuan berisiko 1,4 kali lebih tinggi dibandingkan lansia laki-laki dengan IK 95% 1.014-1.931 dan lansia dengan malnutrisi berisiko 1,8 kali dengan IK 95% 1.256-2.478. Ditemukannya sarkopenia pada pasien menjadi risiko terbesar untuk penurunan fungsi mobilitas yaitu berisiko 2 kali lebih tinggi dengan IK 95% 1,547-2,606. Sedangkan kadar vitamin D dan CCI tidak berpengaruh secara signifikan terhadap fungsi mobilitas. Kesimpulan: Terdapat hubungan antara usia, jenis kelamin, sarkopenia, dan malnutrisi dengan fungsi mobilitas pada pasien geriatri. ......Background: Limited mobility in elderly is related to low quality of life, reduced access to medical services, increased mortality, morbidity, and health care financial burden. Many factors can influence mobility function. Therefore, this study aims to know the factors associated with mobility function and obtain the relationship between age, sex, nutritional status, vitamin D levels, sarcopenia, and comorbidities with impaired mobility function in geriatric patients. ......Methods: This cross-sectional study was conducted between December 2022 to January 2023 in Geriatric Clinic of Cipto Mangunkusumo National Hospital in Jakarta Indonesia. All elderly patients visited the clinic who can walk with or without walking aids were included. We evaluated mobility function using Timed Up and Go Test (TUG), the TUG score was tested against age, sex, nutritional status, vitamin D levels, sarcopenia, and number of comorbidities to evaluate the association. Result: We found, from multivariate analysis, that the age over 80 years had a risk of decreased mobility function 1.9 times higher with CI 95% 1.139-3.118. Elderly females have risk 1.4 times higher than elderly male with CI 95% 1.014-1.931 and elderly with malnutrition have a risk of 1.8 times with CI 95% 1.256-2.478. Sarcopenia is the greatest risk factor for decreased mobility function, 2 times higher with 95% CI 1,547-2,606. However, vitamin D level and CCI were not associated with mobility function. Conclusions: There is a correlation between age, sex, sarcopenia, and malnutrition with functional mobility in geriatric patients.

Abstrak :
Latar Belakang: Sarkopenia mempengaruhi prognosis karsinoma sel hati (KSH). Dalam penilaian klasifikasi Barcelona Clinic Liver Cancer (BCLC) terkandung penilaian status performa Eastern Cooperative Oncology Group (ECOG). Status performa ECOG merupakan penilaian aktivitas fisik terkait sarkopenia. Pemeriksaan baku emas sarkopenia pada KSH mahal dan membutuhkan banyak waktu. Pemeriksaan tebal otot paha dapat digunakan sebagai modalitas yang baru. Studi ini bertujuan untuk menilai hubungan antara status performa ECOG dengan sarkopenia pada KSH, mengetahui perbedaan rerata antara tebal otot paha pasien status performa ECOG rendah dengan status performa ECOG tinggi pada KSH, dan mengetahui perbedaan rerata antara tebal otot paha pasien sarkopenia dengan non sarkopenia pada KSH. Metode: Studi ini dilakukan di RS tersier selama Januari – Oktober 2021. Analisis statistik dilakukan untuk memperoleh hubungan antara status performa ECOG, tebal otot paha, dan status sarkopenik pasien KSH. Hasil: Delapan puluh lima subjek pasien KSH (usia median, 52 tahun) dilakukan analisis. Sarkopenia diamati pada 30,6% pasien KSH. Setelah melalui analisis multivariat, status performa ECOG buruk berhubungan dengan sarkopenia pada KSH (adjusted OR = 6,35, IK 95% 2,06-19,60). Terdapat perbedaan signifikan rerata tebal otot paha pasien status performa ECOG rendah dengan status performa ECOG tinggi pada KSH (p < 0,001). Terdapat juga perbedaan signifikan rerata tebal otot paha pasien sarkopenia dan non sarkopenia (p < 0,001). Kesimpulan: Terdapat hubungan antara status performa ECOG tinggi dengan sarkopenia pada KSH (aOR = 6,35, IK 95% 2,06-19,60). Rerata tebal otot paha pasien status performa ECOG rendah lebih besar dibanding dengan status performa ECOG tinggi pada karsinoma sel hati. Rerata tebal otot paha pasien non sarkopenia lebih besar dibanding dengan sarkopenia pada karsinoma sel hati. ......Background: Sarcopenia affects hepatocellular carcinoma (HCC) prognosis. HCC staging consists of Eastern Cooperative Oncology Group performance status (ECOG-PS). ECOG-PS is an assessment of physical activity related to sarcopenia. Gold standard examinations for sarcopenia in HCC are expensive and time-consuming. Thigh muscle thickness can be used as a new modality. This study was aimed to explore the association between ECOG-PS with sarcopenia, to seek thigh muscle thickness difference between poor and good performance status, and to know thigh muscle thickness difference between sarcopenic and non-sarcopenic patients with HCC. Methods: The study was conducted in a tertiary hospital during January – October 2021. Statistical analysis was performed to obtain an association between ECOG-PS, thigh muscle thickness, and sarcopenic status of HCC patients. Results: Eighty-five HCC patients (median age, 52 years) were analyzed. Sarcopenia was observed in 30,6% of HCC patients. On multivariate binary regression analysis, a poor ECOG-PS remained independently associated with sarcopenia in HCC (adjusted OR = 6,35, 95% CI 2,06-19,6, p < 0,001). There was a significant difference in thigh muscle thickness between good and poor performance status (p < 0,001). There was also a significant difference in thigh muscle thickness between sarcopenic and non-sarcopenic patients (p < 0,001). Conclusion: There were association between ECOG-PS and sarcopenia in HCC (aOR = 6,35, IK 95% 2,06-19,60). Mean thigh muscle thickness was larger in HCC patients with good ECOG-PS than poor ECOG-PS. Mean thigh muscle thickness was larger in non-sarcopenic HCC patients than sarcopenic ones.

Abstrak :
ABSTRACT
Background: the use of bioelectrical impedance analysis (BIA) is affected by the population setting, the type of BIA, and the cut-off point being used. The aim of this study was to determine the diagnostic performance of BIA to measure muscle mass in Indonesian elderly outpatients aged 60 years or more. Methods: a cross-sectional study was conducted at the Geriatric Clinic of Cipto Mangunkusumo Hospital from April to June 2018. The muscle mass was measured using BIA Tanita MC-780MA (Tokyo, Japan) with dual-energy x-ray absorptiometry (DXA) as the reference test. Analysis on the cut-off point was performed based on the Asian Working Group of Sarcopenia (AWGS) criteria and the new cut-off point. Results: from 120 subjects, 74 were female (61.7%). The diagnostic performance of BIA based on AWGS criteria only showed sensitivity and specificity of 79.2% and 66.7%. The diagnostic performance of BIA based on the new cut-off point showed sensitivity and specificity of 75% and 92.7%. The new cut-off point using BIA was found to be <6.9 kg/m2 in males (sensitivity 70.6%; specificity 82.8%) and <5 kg/m2 in females (sensitivity 85.7%; specificity 97%). Conclusion: the diagnostic performance of BIA Tanita MC-780MA (Tokyo, Japan) was good to measure muscle mass in Indonesian elderly outpatients using a new cut-off point of <6.9 kg/m2 for males and <5 kg/m2 for females.

Abstrak :
Purpose: The body mass index (BMI) before lung transplantation (LT) is a benchmark of the post-LT survival. The aim of the study is to determine the BMI inadequate for the post-LT survival.

Methods: We examined the survival after LT in patients grouped into the following BMI categories: <18.5 kg/m2 (underweight), 18.5-24.9 kg/m2 (normal weight), 25-29.9 kg/m2 (overweight), and ≥30.0 kg/m2 (obese) according to the World Health Organization (WHO) criteria. A more detailed categorization was made for further evaluation of the underweight group: mild (17.0 ≤ BMI < 18.5 kg/m2) and severely underweight (BMI <17.0 kg/m2).

Results: There was no statistically significant difference in the post-LT survival between underweight and normal-weight patients (5-year survival: 78.7 vs. 76.1%). Patients with BMI <17.0 kg/m2 had a worse prognosis than those with 17.0 ≤ BMI < 18.5 kg/m2 (5-year survival: 70.3 vs. 90.0%).

Conclusions: Standard BMI categorization per the WHO criteria is inadequate for determining the post-LT survival, especially in underweight patients. For the nutritional evaluation of underweight pre-LT patients, BMI <17.0 kg/m2 should be used instead of BMI <18.5 kg/m2.

Abstrak :
ABSTRACT
Background: sarcopenia is one of many geriatric problems that may lead to major clinical outcomes. Calf and thigh circumference have good correlation with muscle mass, whereas SARC-F questionnaire is very predictive of muscle function. There has not been a study that evaluates the diagnostic performance of calf and thigh circumference in combination with SARC-F questionnaire in detecting sarcopenia. The aim of this study was to investigate the diagnostic performance of calf and thigh circumference in combination with SARC-F questionnaire compared to standard diagnostic methods of sarcopenia according to the Asian Working Group for Sarcopenia (AWGS) to predict sarcopenia in patient aged 60 years or older. METHODS: this cross-sectional study was conducted in Geriatric Clinic Cipto Mangunkusumo Hospital, Jakarta, Indonesia during April-June 2018. Analysis was performed using receiver operating characteristic (ROC) curve to determine the cut-off point as well as sensitivity (Sn), specificity (Sp), positive and negative predictive value (PPV and NPV), positive and negative likelihood ratio (LR+ and LR-) of calf and thigh circumference as an indicator of low muscle mass, and SARC-F questionnaire score to detect decreased muscle function. RESULTS: from 120 participants, there were 46 men (38.3%) and 74 women (61.7%). The combination of calf circumference with cut-off point below 34 cm in men and below 29 cm in women, thigh circumference below 49 cm in men and below 44 cm in women with SARC-F questionnaire score of ≥4 have Sn, Sp, PPV, NPV, LR+, and LR- of 15.79%; 99.01%; 75.00%; 86.21%; 15.95; and 0.85 respectively. CONCLUSION: combination of calf and thigh circumference with SARC-F questionnaire showed good diagnostic accuracy in predicting sarcopenia in elderly outpatients.

Abstrak :
Usia lanjut berisiko tinggi mengalami defisiensi vitamin D, sedangkan vitamin D memiliki efek protektif terhadap massa otot. Penurunan massa otot dan fungsinya disebut dengan sarkopenia. Prevalensi sarkopenia sangat tinggi pada usia lanjut yang tinggal di panti wreda, kondisi ini disebabkan gaya hidup sedentari pada penghuni panti wreda. Deteksi dini sarkopenia dapat dilakukan dengan mengukur fungsi otot, salah satunya adalah mengukur performa fisik dengan tes short physical performance battery (SPPB). Penelitian potong lintang ini bertujuan untuk melihat korelasi antara kadar vitamin D serum dengan performa fisik pada usia lanjut di lima panti wreda yang terdaftar di Kota Tangerang Selatan. Pengambilan subjek dilakukan dengan cara proportional random sampling, didapatkan 100 usila yang memenuhi kriteria penelitian. Pemeriksaan kadar vitamin D menggunakan kadar kalsidiol serum dengan metode chemiluminescence immunoassay (CLIA). Pemeriksaan massa otot menggunakan bioelectric impedance analysis Tanita SC-330. Analisis korelasi menggunakan uji nonparametrik. Didapatkan nilai tengah usia subjek adalah 74,89 tahun dan 72% subjek adalah perempuan. Terdapat  85% subjek memiliki asupan vitamin D yang kurang dan  94% subjek memiliki skor pajanan sinar matahari yang rendah, serta seluruh subjek masih memiliki massa otot yang normal. Nilai tengah kadar vitamin D serum  adalah 15,50(4-32) ng/mL, dengan 72% subjek mengalami defisiensi vitamin D. Nilai tengah performa fisik adalah 9(3-12) dan sebanyak 47% subjek mengalami performa fisik yang buruk. Hasil penelitian ini menunjukkan bahwa tidak terdapat korelasi antara kadar vitamin D serum dengan performa fisik pada usia lanjut di panti wreda (r=0,130; p=0,196). ......Elderly individuals have a risk of vitamin D deficiency, whereas vitamin D has a protective effect on muscle mass. Decrease in muscle mass and function is called sarcopenia. The prevalence of sarcopenia is very high in the elderly who live in nursing homes, this condition is due to the sedentary lifestyle. Early detection of sarcopenia can be done by measuring physical performance with short physical performance battery (SPPB) test. This cross-sectional study aimed to explore the correlation between vitamin D serum levels with physical performance among elderly individuals in five nursing homes registered in South Tangerang. A hundred subjects who fulfilled study criteria gathered using proportional random sampling method. Examination of vitamin D levels using calcidiol serum with the chemiluminescence immunoassay (CLIA) method. Muscle mass was measured using bioelectric impedance analysis Tanita type SC-330. Nonparametric correlation was used for correlation analysis. Median age of subjects was 74.89 years old and 72% were female. Eighty-five percent of subjects had low vitamin D intake, 94% of subjects had low sun exposure score, and all subjects had normal muscle mass. Mean level of vitamin D serum was 15.50 (4-32) ng/mL, with 72% of subjects had vitamin D deficiency. Mean score of physical performance was 9(3-12) and 47% of subjects had low physical performance. This study showed that there was no correlation found between vitamin D serum levels with physical performance among elderly individuals in nursing homes (r=0.130; p=0.196).

Abstrak :
Latar belakang: Pola hidup sedenter pada usia produktif berpengaruh terhadap kualitas hidup pada lansia, antara lain dapat menimbulkan penurunan massa dan fungsi otot atau sarkopenia. Salah satu pendekatan untuk menjaga kualitas hidup lansia adalah dengan latihan fisik. Latihan fisik intensitas tinggi dengan interval (high intensity interval training, HIIT) dan latihan fisik intensitas sedang (moderate intensity training, MIT) diketahui dapat menjaga dan meningkatkan kualitas hidup. Meskipun HIIT dinilai bermanfaat, kelayakannya pada individu dewasa tua masih belum banyak diketahui. Penelitian ini bertujuan untuk mengetahui pengaruh HIIT untuk mencegah sarkopenia pada proses penuaan hewan coba. Metode penelitian: Penelitian ini dilakukan di Laboratorium Hewan Litbangkes Depkes dari September 2016-Maret 2017. Tikus Wistar jantan usia dewasa muda (6 bulan) dan dewasa tua (12 bulan), diberi perlakuan HIIT dan MIT selama 8 minggu. Masing-masing kelompok usia dibagi secara acak menjadi 4 kelompok yaitu: K1 (kontrol, didekapitasi pada hari-1 penelitian sebagai baseline; K2 (kontrol, sedenter); HIIT dan MIT. Pada akhir minggu ke-8 dilakukan pemeriksaan kadar Troponin-T, PGC-1α (ELISA); kadar asam laktat (spektrofotometri); morfologi otot rangka (HE); serta marker apoptosis (Caspase3, imunohistokimia). Hasil: Kadar Troponin T kelompok HIIT dan MIT lebih tinggi dibandingkan K2 baik pada usia dewasa muda dan usia dewasa tua. Kadar PGC-1α lebih tinggi pada kelompok HIIT dan MIT dibandingkan kelompok K2 pada usia dewasa tua. Tidak terdapat perbedaan kadar asam laktat darah pada kelompok HIIT dan MIT usia dewasa muda dan dewasa tua dibandingkan dengan K2. Akan tetapi, kadar asam laktat darah K1-T dan K2T berbeda signifikan, namun tidak melebihi 4,0 mmol/L. Tidak terdapat perbedaan pada jumlah serat otot rangka kelompok HIIT dan MIT tikus dewasa muda dan dewasa tua dibandingkan K2. Pada tikus dewasa muda, luas penampang serat otot rangka lebih rendah bermakna pada kelompok HIIT dan MIT dibandingkan K2-M. Ekspresi Caspase3 pada jaringan otot rangka hanya ditemukan pada kelompok usia dewasa tua, namun tidak terdapat perbedaan antara kelompok HIIT dan MIT dengan K2. Kesimpulan: HIIT dan MIT selama 8 minggu pada tikus dewasa tua dapat mempertahankan kadar Troponin T dan PGC-1α yang penting untuk kontraksi otot rangka. Penerapan kedua latihan ini pada usia dewasa tua tidak meningkatkan kadar laktat darah yang melebihi ambang normal serta tidak menyebabkan kerusakan dan apoptosis pada otot rangka. Penelitian ini menunjukkan bahwa HIIT dan MIT keduanya dapat diterapkan pada usia dewasa tua dan bermanfaat dalam mencegah sarkopenia.

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Background: SSedentary lifestyle duringproductive age will influences the quality of life in the elderly, . among others, cIt can cause a decrease in function and muscle mass or which known as sarcopenia. One approach to maintaining the quality of life of thein elderly is physical exercise. High intensity interval training (HIIT) and moderate intensity training (MIT) are known to be able to maintain and improve quality of life. Although HIIT is considered beneficial, its feasibility in older adult individuals is still not widely known. This study aims to determine investigate the effect of HIIT to in preventing sarcopenia in the aging process of experimental animals. Methods: This study was conducted at Animal Laboratory of Ministry of Health RI from September 2016-March 2017. Male of young adults (6 months) and older adults (12 months) Wistar rats, treated with HIIT and MIT for 8 weeks. Each age group was divided randomly into 4 groups, namely: K1 (control, decapitated on study day-1 as baseline); K2 (control, sedenter); HIIT and MIT. At the end of the 8th weeks, we examined Troponin T levels were examined, PGC-1α (ELISA); lactic acid levels (spectrophotometry); skeletal muscle morphology (HE); as well asand Caspase-3 as markers of apoptosis (Caspase-3, immunohistochemistry). Results: Troponin-T levels of HIIT and MIT groups were higher than K2 in both in young adult and old adult rats. PGC-1α levels were higher in the HIIT and MIT groups than in thecompared to K2 group in old adult rats. There were no differences in blood lactic acid levels in the HIIT group and MIT groups in both young and older adults compared to K2. HoweverInterestingly, blood lactic acid levels were significantly difference between K1old adult and K2-old adult rats in older adult rats differ significantly, but do not exceed 4.0 mmol /L. There was no difference in the number of skeletal muscle fibers in the HIIT and MIT groups of young and old adult rats compared to K2all groups. In young adult rats, cross sectional area (CSA) skeletal muscle was significantly lower in HIIT training than K2. Caspase-3 expression in skeletal muscle tissue was only found in the old adult group rats, but there was no difference between HIIT and MIT groups with compared to K2 group. Conclusion: Our study revealed that HIIT and MIT for 8 weeks in old adult rats can maintain levels of Troponin T and PGC-1α which are important for skeletal muscle contraction of skeletal muscles. The application of these two exercises in older adult rats does not increase blood lactate lactic acid levels that exceed the normal threshold and does not cause damage and apoptosis in skeletal muscles. This research Therefore our study shows that both HIIT and MIT can both be applied in older adult rats and are useful beneficial in preventing sarcopenia.