<![CDATA[ABSTRACT Background: Physical fitness is something that needs to be considered by teenagers because it can relate to aspects of their health. Factors of physical fitness can be influenced by several things, such as hemoglobin levels, nutritional status, percent fat, and physical activity.Objectives: The purpose of this study to determine the relationship between hemoglobin levels, nutritional status, percent fat and physical activity with the physical fitness of female adolescents at MAN 2 Kota SemarangMethods: This research was conducted using a cross-sectional design with a total sample of 87 female students. The sample was collected with proportionate stratified sampling. Data on hemoglobin levels were taken from capillary blood which were then measured using the kapiler blood with Point of Care Testing (easytouch GCHB brand), while nutritional status was measured using the BMI/U indicator, percent fat using the BIA tool and physical activity was measured using the IPAQ questionnaire. Bivariate analysis in this study used the Gamma test and multivariate used the ordinal logistic regression test.Results The results of this study showed that the samples had normal hemoglobin levels (67.8%), good nutritional status (79.3%), normal fat percentage (67.8%) and strenuous physical activity (49.4%). The results of the bivariate analysis showed that there was a relationship between hemoglobin level (p<0.001), nutritional status (p= 0.005), percent fat (p<0.001) and physical activity (p<0.001) and physical fitness of female adolescents. Conclusion: There is a relationship between hemoglobin levels, nutritional status, percent body fat and physical activity with the physical fitness of young women and what most influences the physical fitness of young women is nutritional status.Keywords: Hemoglobin level; Nutritional status; Percent fat; Physical activity; Physical fitness.ABSTRAKLatar belakang: Kebugaran jasmani merupakan hal yang perlu diperhatikan oleh remaja karena dapat berhubungan dengan aspek kesehatannya. Faktor kebugaran jasmani dapat dipengaruhi oleh beberapa hal seperti kadar hemoglobin, status gizi, persen lemak dan aktivitas fisik.Tujuan: Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara kadar hemoglobin, status gizi, persen lemak dan aktivitas fisik dengan kebugaran jasmani remaja putri di MAN 2 Kota Semarang.Metode: Penelitian ini dilakukan dengan menggunakan desain cross sectional dengan jumlah sampel sebanyak 87 orang siswi. Sampil diambil dengan menggunakan teknik proportionate stratified sampling. Data kadar hemoglobin diambil dari darah kapiler yang kemudian diukur dengan menggunakan darah kapiler metode digital (Point of Care Testing) merk easytouch GCHB, sedangkan status gizi diukur dengan menggunakan indikator Indeks Massa Tubuh menurut umur (IMT/U), persen lemak dengan menggunakan alat bioimpedance analysis (BIA) dan aktivitas fisik diukur dengan menggunakan kuesioner International Physical Activity Questionnaire (IPAQ). Analisis bivariat pada penelitian ini menggunakan uji Gamma dan multivariat menggunakan uji regresi logistik ordinal.Hasil: Hasil pada penelitian ini di dapat bahwa sampel memiliki kadar hemoglobin yang normal (67,8%), status gizi yang baik (79,3%), persen lemak yang normal (67,8%) dan aktivitas fisik yang berat (49,4%). Hasil analisis bivariat menunjukan bahwa terdapat hubungan antara kadar hemoglobin (p<0,001), status gizi (p= 0,005), persen lemak (p<0,001) dan aktivitaas fisik (p<0,001) dengan kebugaran jasmani remaja putri.Simpulan: Terdapat hubungan antara kadar hemoglobin, status gizi, persen lemak tubuh dan aktivitas fisik dengan kebugaran jasmani remaja putri. Variabel status gizi yaitu variabel yang paling berpengaruh terhadap kebugaran jasmani.Kata Kunci: Aktivitas fisik; Kadar hemoglobin; Kebugaran jasmani; Persen lemak; Status gizi.]]>
