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"Background: optimal hydration represents adequate total daily fluid intake to compensate for daily water losses, ensure adequate urine output to reduce the risk of urolithiasis and renal function decline, and also avoid the production of arginine vasopressin (AVP). Twenty four hour urine osmolality has been used to assess hydration status, but it is challenging because of the possibility of spilling urine and limitation of daily activities. This study is aimed to determine the performance of the afternoon urine osmolality to assess the optimal hydration status compared with 24 hour urine osmolality.Methods: a cross sectional study was conducted on healthy employees aged 18-59 years at Universitas Indonesia Medical Faculty/Cipto Mangunkusumo Hospital, with consecutive sampling method. The ROC curve was analyzed to obtain the optimal cut off point and the accuracy of the afternoon urine osmolality in assessing the optimal hydration status.Results: between August-September 2016 there were 120 subjects (73.8% female, median age 32 years) who met the study criteria with a median 24 hour urine osmolality 463.5 (95% CI, 136-1427) mOsm/kg H2O and median afternoon urine osmolality 513 (95% CI, 73-1267). We found moderate correlation (r=0.59; p<0.001) between afternoon urine osmolality and a 24 hour urine osmolality. Using ROC curve, the AUC value was 0.792 (95% CI, 0.708-0.875) with the cut off 528 mOsm/kg H2O. To assess the optimal hydration status, the afternoon urine osmolality had the sensitivity of 0.7 (95% CI, 0.585-0.795) and the specificity of 0.76 (95% CI, 0.626-0.857), Likelihood Ratio (LR) (+) 2.917 (95% CI, 1.74-4.889) and LR (-) 0.395 (95% CI, 0.267-0.583).Conclusion: afternoon urine osmolality can be used as a diagnostic tool to assess the optimal hydration status in healthy population with cut off 528 mOsm/kg H2O, sensitivity of 0.7, and specificity of 0.76.

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Latar belakang: hidrasi optimal merupakan hidrasi yang dianggap cukup untuk menggantikan kehilangan cairan, menjamin produksi urin adekuat untuk mengurangi risiko urolitiasis dan penurunan fungsi ginjal, serta mencegah keluarnya arginin vasopresin (AVP). Osmolalitas urin 24 jam diketahui dapat mengukur status hidrasi seseorang, namun dirasakan memberatkan karena kemungkinan urin tercecer dan membatasi aktivitas kerja. Penelitian ini bertujuan mengetahui peranan pemeriksaan osmolalitas urin sewaktu sore hari untuk menilai status hidrasi optimal.

Metode: studi potong lintang dilakukan pada karyawan sehat berusia 18-59 tahun di lingkungan FKUI/RSUPN Cipto Mangunkusumo, memakai metode consecutive sampling. Dilakukan analisis kurva ROC untuk mendapatkan titik potong dan akurasi osmolalitas urin sore hari dalam menilai status hidrasi optimal.

Hasil:antara bulan Agustus-September 2016 terkumpul 120 subjek (73,8% perempuan, median usia 32 tahun) yang memenuhi kriteria penelitian dengan median osmolalitas urin 24 jam 463,5 (95% IK, 136-1427) mOsm/kg H2O dan median osmolalitas urin sore hari 513 (95% IK, 73-1267) mOsm/kg H2O. Pada analisis didapatkan korelasi sedang (r=0,59; p<0,001) antara osmolalitas urin sore hari dengan osmolalitas urin 24 jam. Dengan kurva ROC didapatkan nilai AUC 0,792 (95% IK, 0,708-0,875) dengan titik potong 528 mOsm/kg H2O. Dalam menentukan hidrasi optimal, osmolalitas urin sore hari memiliki sensitivitas sebesar 0,7 (95% IK, 0,585-0,795) dan spesifisitas 0,76 (95% IK, 0,626-0,857) serta Likelihood Ratio (LR) (+) 2,917 (95% IK, 1,74-4,889) dan LR (-) 0,395 (95% IK, 0,267-0,583).

Kesimpulan: osmolalitas urin sore hari dapat menjadi indikator dalam menilai status hidrasi optimal pada populasi sehat dengan titik potong 528 mOsm/kg H2O serta sensitivitas 0,7 dan spesifisitas 0,76."

"ABSTRAKLatar Belakang: Hidrasi optimal merupakan hidrasi yang mencukupi untuk menggantikan kehilangan cairan, menjamin produksi urin cukup untuk mengurangi risiko urolitiasis dan penurunan fungsi ginjal, serta mencegah keluarnya arginin vasopresin AVP . Osmolalitas urin 24 jam diketahui dapat mengukur status hidrasi seseorang, namun dirasakan memberatkan karena kemungkinan urin tercecer dan membatasi aktivitas kerja. Oleh karena itu, dibutuhkan metode yang lebih sederhana untuk menggantikan pemeriksaan tersebut. Penelitian sebelumnya menunjukkan osmolalitas urin sore memiliki nilai terdekat dengan osmolalitas urin 24 jam. Namun, belum ada penelitian yang mengukur kemampuan urin sore hari sebagai penentu status hidrasi optimal.Tujuan: Mengetahui peranan pemeriksaan osmolalitas urin sore hari untuk menilai status hidrasi optimal dibandingkan dengan osmolalitas urin 24 jam.Metode: Studi diagnostik dengan desain studi potong lintang terhadap subjek sehat berusia 18-59 tahun dengan menganalisa kurva ROC untuk mendapatkan titik potong dan akurasi osmolalitas urin sore hari dalam menilai status hidrasi optimal.Hasil: Antara bulan Agustus-September 2016 terkumpul 120 subjek 73,8 perempuan, median usia 32 tahun yang memenuhi kriteria penelitian dengan median osmolalitas urin 24 jam 463,5 95 IK, 136-1427 mOsm/kg H2O dan median osmolalitas urin sore hari 513 95 IK, 73-1267 mOsm/kg H2O. Pada analisis didapatkan korelasi sedang r= 0,59; p

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ABSTRACT

Background: Optimal hydration representing adequate total daily fluid intake to compensate for daily water losses, ensure urinary output to reduce the risk of urolithiasis and renal function decline, and also avoid production of arginine vasopressin AVP . Twenty four hour urine osmolality has known to assess hydration status, but it is challenging because of the possibility of spilling urine and limiting time for daily activities. So that, we need easier method to determine optimal hydration status to replace 24 hour urine osmolality. Previous studies showed afternoon urine osmolality have an association with 24 hour urine osmolality. However, no studies measure the performance of afternoon urine osmolality to assess optimal hydration status.

Objective: To determine the performance of afternoon urine osmolality to assess the optimal hydration status compared with 24 hour urine osmolality.

Methods: Diagnostic study with cross sectional study design was conducted to healthy subjects aged 18 59 years by analyzing the ROC curve to obtain the optimal cutt off point and accuracy of afternoon urine osmolality in assessing the optimal hydration status.

Results: Between August September 2016 there were 120 subjects 73.8 female, median age 32 years who met the study criteria with a median 24 hour urine osmolality 463.5 95 CI, 136 1427 mOsm kg H2O and median afternoon urine osmolality 513 95 CI, 73 1267 mOsm kg H2O. From the analysis, we found the correlation was moderate r 0.59 p"

"Background: genitourinary tuberculosis (GUTB) refers to a Mycobacterium tuberculosis infection of the urinary tract with clinical manifestation masquerading as various urological diagnostic entities. With an incidence rate of 192-232 per 100,000 individuals, current diagnoses have fallen short in comparison to the total incidence. Combined with an atypical and non-specific manifestation, a high false negative rate of acid-fast bacilli (AFB) staining, and long AFB culture duration has made diagnosis difficult. We aim to gather current available evidence regarding the diagnostic performance of polymerase chain reaction (PCR) in the diagnosis of GUTB. Methods: a literature search was conducted in four different, well-known databases using a predetermined PICO, keywords, and Boolean operators. All included articles will be subjected to rigorous appraisal according the University of Oxford's Centre for Evidence-Based Medicine (CEBM) Diagnostic Variability Criteria. Review and meta-analysis will be subjected to the QFAITH appraisal checklist to assess its quality. Results: out of a total of 243 initial search results, 11 relevant studies were determined after title and abstract screening. Additionally, nine articles were excluded based on the predetermined criteria. Two fully appraised articles were included in the study: one systematic review article, revealing a heterogenous (I2 = unstated; p = unstated) result of sensitivity mean above 85% and specificity above 75%; and one cross-sectional diagnostic study that reported the use of two different PCR primers: IS6110-PCR and 16SrRNA-PCR primer with a sensitivity of 95.99% and 87.05% and specificity of 98.11% and 98.9%, respectively. Conclusion: current limited evidence showed that PCR could not be solely used for the diagnosis of GUTB, but its use is recommended to guide patient treatment and monitoring."

"Berat jenis urine merupakan kepadatan zat terlalut dalam urine. Nilai berat jenis urine mencerminkan kemampuan ginjal dalam memekatkan urine. Berat jenis yang tinggi menunjukkan bahwa kandungan air pada tubuh belum tercukupi sehingga menyebabkan dehidrasi. Kasus dehidrasi sangat berbahaya apabila dialami oleh ibu hamil, karena dapat menyebabkan ukuran janin yang lebih kecil sehingga dapat beresiko stunting. Oleh karena itu, pengukuran berat jenis diperlukan sebagai pemantauan status hidrasi tubuh. Metode pengukuran berat jenis urine yang umum dilakukan adalah urinalisis kolorimetri menggunakan strip uji urine. Namun, penggunaan strip uji urine dengan membandingkan warna secara manual menghasilkan akurasi yang rendah karena interpretasi warna yang subjektif. Pada penelitian ini sistem instrumentasi kolorimteri berbasis kamera ponsel pintar dibangun untuk melakukan pengukuran berat jenis urine menggunakan strip uji urine. Pengembangan dilakukan pada bentuk strip uji dengan mengatur ulang bentuknya menjadi barcode uji. Pengambilan gambar barcode uji dilakukan menggunakan ponsel pintar Huawei Nova 5T, Samsung A72, dan Vivo Y12. Hasil citra yang didapatkan akan disegmentasi dan dilakukan koreksi warna. Papan warna referensi yang diadaptasi dari warna x-rite ColorChecker digunakan sebagai referensi untuk koreki warna citra dengan pemodelan Polynomial Color Correction (PCC). Hasil citra terkoreksi digunakan pada pengukuran barcode uji dengan melihat fungsi waktu serta digunakan pada pembangunan model klasifikasi dan regresi CNN-GoogleNet. Pengukuran terhadap barcode uji dengan fungsi waktu menunjukkan bahwa strip uji kosong yang berada di suhu ruang selama 10 menit masih layak digunakan dan waktu maksimal pengambilan citra barcode uji yang telah dicelupkan ke sampel adalah 5 menit. Model klasifikasi yang dibangun menghasilkan akurasi pelatihan dan pengujian sebesar 99,73% dan 98,76% dan untuk model regresi menghasilkan nilai RMSE sebesar 0,002 dan R2v sebesar 0,92. Hasil penelitian menunjukkan bahwa pemodelan dengan CNN-GoogleNet dapat digunakan untuk prediksi kelas berat jenis urine dan prediksi kadar berat jenis urine.

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Specific gravity of urine is the density of too much substance in the urine. The value of the specific gravity of urine reflects the ability of the kidneys to concentrate urine. High specific gravity indicates that the water content in the body is not sufficient, it causing dehydration. The case of dehydration is very dangerous when experienced by pregnant women, because it can cause a smaller size of the fetus so that it can be at risk of stunting. Therefore, measurement of specific gravity is needed as a monitoring of the body's hydration status. The urine specific gravity measurement method that is commonly used is colorimetric urinalysis using urine test strips. However, the use of urine test strips by manually comparing colors results in low accuracy due to subjective color interpretation. In this study a colorimetry instrumentation system based on a smartphone camera was built to measure urine specific gravity using urine test strips. The development is carried out on the shape of the test strip by rearranging its shape into a test barcode. The test barcode image was taken using the Huawei Nova 5T, Samsung A72, and Vivo Y12 smart phones. The resulting image will be segmented and color correction is performed. The reference color board adapted from the x-rite ColorChecker color is used as a reference for image color correction with Polynomial Color Correction (PCC) modeling. The results of the corrected image are used for measuring the test barcode by looking at the time function and used in the construction of the CNN-GoogleNet classification and regression model. The measurement of the test barcode with the time function shows that the blank test strip at room temperature for 10 minutes is still suitable for use and the maximum time for taking the test barcode image that has been immersed in the sample is 5 minutes. The classification model that was built resulted in training and testing accuracy of 99.73% and 98.76% and for the regression model it produced RMSE values of 0.002 and R² of 0.92. The results showed that modeling with CNN-GoogleNet can be used to predict urine specific gravity class and predict urine specific gravity level."

"Latar Belakang: Frailty pada penyakit ginjal kronik (PGK) memiliki prevalensi yang cenderung meningkat tiap tahun. PGK juga meningkatkan risiko seseorang untuk jatuh ke dalam kondisi frailty, namun kejadian frailty pada PGK sering tidak terdiagnosis dan berdampak terhadap meningkatnya mortalitas dan morbiditas pasien hemodialisis kronik. Sampai saat ini belum ada alat yang mudah, murah, dan validitasnya mendukung untuk mendiagnosis frailty pada PGK hemodialisis. Indeks frailty index-40 questions (FI-40) memiliki penilaian yang lengkap dan mendetail namun sulit dilaksanakan dalam praktik klinis sehari-hari. Penelitian ini bertujuan menilai performa diagnostik dari indeks FRAIL dan indeks CHS, yang memiliki kriteria yang sederhana sehingga lebih mampu-laksana dalam praktik sehari-hari.Metode: Penelitian potong lintang dengan data primer dilakukan pada penderita PGK yang menjalani hemodialisis di RSUPN Cipto Mangunkusumo. Frailty dinilai dengan tiga instrumen: FI-40, indeks FRAIL dan indeks CHS. Riwayat medis dan hasil pemeriksaan laboratorium diperoleh dari rekam medis. Karakteristik pasien dan prevalensi frailty berdasarkan masing-masing instrumen dideskripsikan, lalu dilakukan penilaian parameter performa diagnostik indeks FRAIL dan Indeks CHS dengan table 2x2.Hasil: Prevalensi frailty 28,6% (IK 95%;19,2-38%) dengan FI-40. Indeks FRAIL memiliki sensitivitas 88,46% (IK 95%: 69,86 – 97,55%) dan spesifisitas 86,15% (IK 95%: 75,34 – 93,47%). Sementara indeks CHS memiliki sensitivitas 88,46% (IK 95%: 69,86% - 97,55%) dan spesifisitas 92,31% (IK 95%: 82,95 – 97,46%). Indeks CHS unggul pada spesifisitas, positive predictive value, dan positive likelihood ratio, sehingga memiliki kemampuan lebih baik sebagai diagnostik sekunder.Kesimpulan: Indeks FRAIL dan Indeks CHS yang diuji memiliki performa diagnostik yang baik dalam menilai status frailty frailty pada PGK hemodialisis.

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Background: Frailty in chronic kidney disease (CKD) is a condition with yearly increasing prevalence. CKD itself predisposes patients for frailty, but this is often underdiagnosed and impacts on mortality and morbidity, especially in chronic hemodialysis patients. Until now, there are no effective, efficient, and valid tools to diagnose frailty in hemodialysis patients. the Frailty Index-40 questions (FI-40) is a comprehensive and detailed assessment of frailty, but is hard to use in everyday practice. This research was done to assess the diagnostic performances of the FRAIL and CHS indices, which are simpler and therefore easier to execute in daily practice.

Methods: This is a cross-sectional study with primary data from the hemodialysis unit of Cipto Mangunkusumo Hospital (RSCM) with age over 40 years old and various characteristics were included in this study. Frailty was measured using the FI-40, FRAIL index, and CHS index. Medical history and laboratory results were acquired through medical records. Patients’ characteristics and frailty prevalences according to each instruments were described, and diagnostic parameters for each instruments were calculated based on a constructed 2x2 table.

Results: Frailty in this cohort was measured at 28.6% with FI-40, 35.2%. FRAIL index has a sensitivity of 88.46% (95%CI: 69.86 – 97.55%) and specificity of 86.15% (95%CI: 75.34 – 93.47%). Meanwhile, the CHS index has a sensitivity of 88.46% (95%CI: 69.86% - 97.55%) and specificity of 92.31% (95%CI: 82.95 – 97.46%). The CHS index offers better specificity, positive predictive value, and positive likelihood ratio. This ensures a greater and suited for secondary diagnosis.

Conclusions: FRAIL scale and CHS scale tested instruments offered excellent diagnostic capabilities for frailty in CKD patients with hemoadialysis."

"ABSTRAKCompetencies provide the individual with a map or indication of the behaviors that will be valued, recognized and in some organizations rewarded. In this regard, organizations that have spent time and money to ensure that competencies are successfully used, is expecting improvement in the assessment of job performance. In this regard, Spencer & Spencer, (1993) says that competencies can be measured, and the results ofthe measurement can be used to plan training and development programs, succession, career management, performance management, recruitment, selection, and application of competency based compensation. .Competencies should be assessed properly, and confidence with their use. Failure to do so may result in individuals finding thattheir efforts remain largely ignored, worse, a waste of time, especially if they are later told that these competencies are not required for their jobs. However, competencies are not immune to the difficulties encountered with the more traditional measurement of job performance, as there are many aspects influence the successful of the application of assessment.This study evaluates the effectiveness of the competency assessment to individual development in a constructioncompany in Indonesia. The company has been applying Competency Based Human Resource Management (CBHRM)since 2004. The previous methods to assess the competencies are using assessment center and competency assessment questiormaire. However, the results of the study shows that there are many constraints in applying competencies model successfully due to some reasons such as: the assessment process relies too heavily on managers? judgment, and the managers and subordinates were hesitant to rate individual with his/her actual rating, the item of the assessment are not cleared enough, validity ofthe instrument is still questionable, and the employees have not been given any feedback regarding the results ofthe assessment. In order to overcome the constraints, the researchers used multi rater approach to assess employees? competencies, and the results show that the big deficiencies between the actual and the expected in some competencies."

"Latar BelakangObesitas merupakan masalah status nutrisi yang sedang mengalami tren peningkatan. Di tahun 2022, ditemukan 1,61 miliar orang dewasa mengalami berat badan berlebih dan terdapat 890 juta orang dewasa dalam kondisi obesitas. Dengan menggunakan model Trans Theoritical Model (TTM) Prochaska yang menilai tahap dan proses perubahan perilaku, peneliti hendak mencari tahu hubungan status gizi dan proses perubahan perilaku dengan tahap perubahan perilaku pada populasi dewasa di lingkungan FKUI baik mahasiswa maupun pekerja dengan rentang usia 19-59 tahun dengan kelebihan berat badan.MetodePenelitian ini merupakan penelitian observasional analitik dengan desain penelitian cross- sectional. Subjek dalam penelitian ini adalah individu dewasa berupa mahasiswa dan pekerja berusia 19-59 tahun dengan berat badan berlebih. Menggunakan kuesioner studi Andrés et al yang sudah tervalidasi dan diterjemahkan dalam versi Bahasa Indonesia yang terdiri dari satu pertanyaan tahap perubahan perilaku dan 32 pertanyaan proses perubahan perilaku.HasilDari 83 sampel yang terdiri dari 13 pekerja dan 70 mahasiswa, terdapat 43,5% orang termasuk kategori overweight, 37,6% orang termasuk obesitas 1, dan 16,5% termasuk obesitas 2. Sebanyak 45,9% dan 29,4% orang berada di tahap action dan maintenance. Skor EmR, skor hasil SR (support relationship), WCE (weight consequences evaluation), dan WMA (weight management action) tidak berbeda secara signifikan. Tidak terdapat hubungan yang bermakna secara statistik antara status gizi dengan tahap perubahan perilaku.KesimpulanPada populasi dewasa, skor proses perubahan perilaku dan status gizi tidak berhubungan dengan tahap kesiapan perubahan perilaku. Akan tetapi jika dilakukan analisis subgroup, kelompok pekerja menunjukan nilai signifikan pada domain EmR, SR, WCE, dan WMA, sedangkan kelompok mahasiswa tidak menunjukan nilai signifikan pada keempat domain tersebut.

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Introduction

Obesity is a nutritional status problem that has been an increasing trend. In 2022, 1.61 billion adults were overweight and 890 million adults in obese conditions. By using the TTM prochaska model and the process of change, researcher aims to figure out the relationship between nutritional status and the process of change with the stage of change in the adult population in the FMUI environment, both students and workers with an age range of 19-59 years with overweight.

Method

This study is an observational analytical study with a cross-sectional design. The subjects in this study were adult individuals, students and workers, aged 19-59 years with overweight. Utilizing the Andrés et al study questionnaire that has been validated and translated into Indonesian consisting of one question on the stage of change and 32 questions on the process of change.

Results

Of the 83 samples which consisted of 13 workers and 70 medical students, 43.5% were overweight, 37.6% were obese 1, and 16.5% were obese 2. A total of 39 people (45.9%) and 25 people (29.4%) were in the action and maintenance stages. The EmR, SR, WME, and WMA scores were not significantly different at the behavioral change and body mass index stages.

Conclusion

In the adult population of students and workers, progress of change value and nutritional status don’t influence the stage of change in the subject. However, when subgroup analysis was conducted, the workers group showed significant results in EmR, SR, WME, and WMA scores, while the students group didn’t."

"Musik merupakan suatu komponen nada yang memberikan stimulus terhadap otak, termasuk untuk proses pembelajaran. Modul terapi musik STAM sudah digunakan untuk mengetahui pengaruh pada fungsi kognitif pasien-pasien dengan gangguan kejiwaan seperti skizofrenia dan demensia. Adapun tujuan dari studi ini melakukan validasi modul terapi musik STAM ke dalam bahasa Indonesia, mengetahui efektivitas terhadap perbaikan atensi dan memori serta tingkat kepuasan responden. Proses penelitian ini terdiri atas proses penerjemahan dengan metode forward dan backward translation. Modul terapi musik STAM versi Bahasa Indonesia dilakukan uji validasi isi dengan menggunakan 3 orang penilai. Uji efektivitas dilakukan dengan desain kuasi eksperimen melibatkan 10 orang responden. Nilai kesahihan modul terapi musik STAM yang versi Bahasa Indonesia menggunakan Scale-Content Validity Index Average didapatkan nilai 0,96. Hasil analisis statistik menunjukkan nilai yang signifikan untuk pengukuran pre dan post-test untuk instrumen RAVLT dan Tes Kelancaran Verbal. Sebanyak 70% responden menyatakan mudah untuk mengikuti instruksi selama proses terapi. Modul terapi musik STAM versi Bahasa Indonesia menunjukkan kesahihan yang baik dan efektif dalam meningkatkan atensi dan memori pada populasi orang dewasa sehat. 

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Music comprises of tones that serves as a stimulus to the brain, including for the learning process. The STAM music therapy module has been used to determine the effect on cognitive function of patients with psychiatric disorders such as schizophrenia and dementia. The purpose of this study was to validate the STAM music therapy module into Indonesian, to find out its effectiveness in improving attention and memory and to identify the level of satisfaction of participants. The research process consisted of a translation process using forward and backward translation methods. The Indonesian version of the STAM music therapy module was tested for content validation using 3 raters. The effectiveness test was carried out with a quasi-experimental design involving 10 participants. The validity value of the STAM music therapy module in the Indonesian version using the Scale-Content Validity Index Average was 0.96. The results of statistical analysis showed significant values ​​for the pre and post-test measurements for the RAVLT instrument and Verbal Fluency Test. As many as 70% of respondents stated that it was easy to follow instructions during the therapy process. The Indonesian version of STAM music therapy module has good validity and has proved significant improvement in attention and memory among health adult population. "

"Penelitian mengenai produksi suara dalam bidang ilmu kedokteran fisik dan rehabilitasi masih jarang hingga saat ini. Waktu fonasi maksimal (WFM) merupakan salah satu parameter untuk menilai ketahanan fonasi. Studi pendahuluan ini ditujukan untuk mengetahui korelasi nilai prediksi ambilan oksigen maksimal (VO2 maksimal) yang didapatkan dari uji jalan enam menit dengan WFM pada populasi dewasa sehat sedenter bukan penyanyi. Penelitian ini merupakan studi potong-lintang dengan teknik pengambilan sampel secara konsekutif. Kriteria inklusi di antaranya subjek berusia 18-50 tahun, sedenter dan bukan penyanyi. Subjek dengan riwayat merokok, memiliki gejala pernafasan dalam dua minggu terakhir, riwayat penyakit jantung, paru, muskuloskeletal dan gangguan keseimbangan dieksklusi dari studi ini. Pengukuran WFM dan uji jalan enam menit dilakukan oleh dua asesor berbeda dan tidak diketahui satu sama lain. Seluruh subjek pada studi ini (n=50) merupakan penduduk ras Mongoloid. Rerata WFM lebih tinggi pada subjek laki-laki (n=18) (27.4+7.4 s vs 20.6+5.1 s, p<0.001). Dari analisis bivariat, didapatkan korelasi antara WFM dan nilai prediksi VO2 maksimal (r=0.588, p<0.001) dan frekuensi suara (r=-0.360, p=0.010), namun setelah analisis multivariat, nilai prediksi VO2 maksimal merupakan satu-satunya faktor yang berhubungan dengan WFM (p=0.004). Terdapat korelasi sedang antara nilai prediksi ambilan oksigen maksimal dari uji jalan enam menit dengan waktu fonasi maksimal pada dewasa sehat sedenter bukan penyanyi.

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Studies regarding voice production in the field of physical medicine and rehabilitation are still sparse to date. Maximum phonation time (MPT) is a parameter to measure phonation endurance. This preliminary study was aimed to determine the correlation of predicted maximal oxygen uptake (VO2 max) obtained from six-minute walk test (6MWT) with MPT in healthy adult population of sedentary non-singers. This is a cross-sectional study with consecutive sampling. The inclusion criteria are subjects aged 18-50 years, sedentary and non-singers. Subjects with a history of smoking, having respiratory symptoms in the last two weeks, heart, lung, musculoskeletal and balance problems were excluded from this study. The measurements of MPT and 6MWT were carried out by two different assessors blinded to each other. The subjects in this study (n=50) were all Mongoloids. The mean MPT was higher in male subjects (n=18) (27.4+7.4 s vs 20.6+5.1 s, p<0.001). From bivariate analysis, there was a correlation between MPT and predicted VO2 max (r=0.588, p<0.001), as well as vocal frequency (r=-0.360, p=0.010). However, after multivariate analysis, predicted VO2 max was the only factor associated with MPT (p=0.004). There is a moderate correlation between predicted VO2 max obtained from 6MWT and MPT in healthy adult population of sedentary non-singers.

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