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"Latar Belakang. Masalah kesehatan yang kerap muncul pada olahraga berlari banyak disebabkan oleh dehidrasi. Penelitian ini bertujuan untuk mengetahui laju keringat pelari rekreasional terlatih agar masalah kesehatatan terkait dehidrasi dapat dicegah. Metode. Penelitian eksperimental ini melibatkan 23 pelari rekreasional terlatih yang diminta untuk berlari selama satu jam pada pagi hari di ruang terbuka kota Jakarta. Berat badan subjek ditimbang sebelum dan setelah berlari. Selisih berat badan kemudian dikalkulasikan dengan volume asupan cairan selama latihan untuk memperoleh laju keringat. Hasil. Berdasarkan persentase kehilangan berat badan, 18 dari 23 subjek mengalami dehidrasi setelah berlari selama satu jam, dengan rata-rata mencapai 1.4 (1.4 ± 0,4) %. Selama latihan, rata-rata subjek minum sebanyak 311 mL. Rata-rata laju keringat yang dikeluarkan subjek mencapai 1.2 (1.2 ± 0,3) L/jam. Laju keringat memiliki korelasi positif dengan luas permukaan tubuh (r = 0,71, p < 0,01) dan juga indeks massa tubuh (r= 0,77, p < 0,01) subjek. Tidak ditemukan adanya korelasi signifikan antara laju keringat dengan intensitas dan riwayat latihan subjek. (p > 0,05) Kesimpulan. Tingginya laju keringat subjek masih belum diimbangi oleh asupan minum subjek, sehingga menyebabkan terjadinya dehidrasi. Untuk itu diperlukan edukasi mengenai strategi rehidrasi yang sesuai dengan kebutuhan individual untuk mencegah terjadinya masalah kesehatan akibat dehidrasi

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Background. Health problems that often appear in running are mostly caused by dehydration. This research aims to know the sweat rate of trained recreational runners so that health problems related to dehydration can be prevented. Method. This experimental study involved 23 trained recreational runners who were asked to run for one hour on the morning day in the open space of the city of Jakarta. Subject was weighed (with precision up to 0,1 kg) before and after running. Body weight that were loss during running is then calculated with the volume of fluid intake to get the sweat rate. Results. Based on the percentage of body weight loss, 18 out of 23 subjects were dehydrated after running for one hour, with the average reaches 1.4 (1.4 ± 0,4)%. During practice, the average subject drinks as much as 311 mL. The average sweat rate of the subject was 1.2 (1.2 ± 0,3) L / hour. Sweat rate has a positive correlation with body surface area (r = 0,71, p <0,01) and also body mass index (r = 0,77, p <0,01). There was no significant correlation found between the sweat rate and the exercise intensity nor training history of the subject. (p> 0,05) Conclusion. The high sweat rate of the subject was still not matched by their fluid intake, causing dehydration. Therefore education is needed regarding the rehydration strategy that suits the individual needs to prevent health problems related to dehydration."

"Aktivitas lari telah menjadi salah satu olahraga rekreasi paling populer di seluruh dunia. Selama pandemi COVID-19, aktivitas ini kerap dilakukan di luar ruangan secara berkelompok dengan tidak memakai masker. Terdapat risiko penularan yang tinggi pada kegiatan ini karena COVID-19 tidak hanya menular dari seseorang yang bergejala, namun juga dapat menular pada fase presimptomatik dan bahkan pada kasus asimptomatik. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang berhubungan dengan infeksi saluran pernafasan (infeksi COVID-19) pada pelari rekreasional selama pandemic COVID-19. Penelitian dilakukan dengan metode kuantitatif. Sebanyak 545 pelari rekreasional berpartisipasi dalam penelitian dengan mengisi kuesioner berbasis website secara online. Berdasarkan hasil penelitian, diduga 30,28% pelari rekreasional menderita infeksi saluran pernafasan (infeksi COVID-19) dan 15,41% menunjukkan hasil skrining COVID-19 yang positif. Hasil analisis statistik menunjukkan bahwa indeks massa tubuh, knowledge, perceived behavioral control dan perceived effectiveness merupakan variabel yang dominan berhubungan dengan infeksi saluran pernafasan (infeksi COVID-19) pada pelari rekreasional di Indonesia. Upaya intervensi atau program promosi yang bertujuan untuk meningkatkan pengetahuan dan pemahaman pelari sekaligus meningkatkan persepsi positif akan kemampuan diri dalam mengontrol perilaku hidup sehat serta keyakinan atas efektivitas program kesehatan, perlu dilakukan untuk mengurangi risiko infeksi virus dan bakteri pada aktivitas berlari di luar ruangan. Selain itu, perhatian khusus pada pelari dengan indeks massa tubuh yang tidak normal agar lebih memperhatikan upaya penanggulangan infeksi saat berolahraga di luar ruangan.

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Running has become one of the most popular recreational sports worldwide. During the COVID-19 pandemic, this activity is often carried out outdoors in groups without wearing a mask. There is a high risk of transmission in this activity because COVID-19 is not only transmitted from someone who is symptomatic, but can also be transmitted in the presymptomatic phase and even in asymptomatic cases. This study aims to analyze the factors associated with respiratory tract infections (COVID-19 infection) in recreational runners during the COVID-19 pandemic. The research was conducted using quantitative methods. A total of 545 recreational runners participated in the study by filling out a website-based online questionnaire. The results showed that 30.28% of recreational runners suffered from respiratory tract infections (COVID-19 infection) and 15.41% got positive COVID-19 screening results. The results of statistical analysis show that body mass index, knowledge, perceived behavioral control and perceived effectiveness are the dominant variables associated with respiratory tract infections (COVID-19 infection) in recreational runners in Indonesia. Intervention efforts or promotional programs that aim to increase knowledge and understanding of runners while at the same time increasing positive perceptions of their ability to control healthy living behavior and confidence in the effectiveness of health programs, need to be carried out to reduce the risk of viral and bacterial infections in outdoor running activities. In addition, special attention to runners with abnormal body mass index to pay more attention to infection control efforts when exercising outdoors.

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"Latar Belakang: Olahraga lari merupakan suatu olahraga yang dapat dilakukan sehari-hari agar tubuh tetap sehat, Nitric Oxide (NO) merupakan radikal bebas yang terbentuk karena adanya aktivitas fisik. NO berfungsi sebagai sistem imun non spesifik sehingga peningkatan nilai NO mempengaruhi bakteri dalam mukosa oral. Tujuan: Menguji konsentrasi saliva nitric oxide pada saliva subjek pelari dan non pelari. Metode: Sampel pada pelari dan non pelari diambil kemudian diidentifikasi untuk melihat konsentrasi NO yang terkandung di dalam saliva Hasil: Terdapat perbedaan konsentrasi saliva NO pada mahasiswa pelari vs mahasiswa non pelari. Kesimpulan: Aktivitas olahraga berdampak pada peningkatan nilai NO didalam saliva.Background: Running is an exercise that we can do everyday to keep the body always healthy, Nitric Oxide (NO) formed due to physical activity is a free radical. NO functions as a non-specific immune system so that an increase in NO values affects bacteria in the oral mucosa. Objective: Determine the concentration of salivary nitric oxide in the saliva of runner and non-runner subjects. Method: Samples of runners and non runners were taken and then identified to see NO concentrations contained in saliva. Results: There were differences in NO saliva concentrations in runners vs. non runners. Conclusion: Activities sports have impact on increasing in the value of NO saliva."