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All Journal JURNAL KELUARGA SEHAT SEJAHTERA JOSKA: ISORI KAMPAR JURNAL
Nuraini Nuraini
State University of Medan
Education Health Professions Nursing Public Health Other

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Hubungan antara Fleksibilitas Pinggul dan Teknik dalam Lari 100 Meter pada Mahasiswa STOK Bina Guna Medan Ody Pratama Elmahdi; Nurfadillah Siregar; Nopi Hardiyanto; Nuraini Nuraini; M. Syahputra
Joska: Jurnal Isori Kampar Vol. 2 No. 02 (2025): July Issue JOSKA: ISORI KAMPAR JURNAL
Publisher : Ikatan Sarjana Olahraga Republik Indonesia (Kabupaten Kampar)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53905/joska.v2i02.22

Abstract

Objectives: Hip flexibility is a crucial component in optimizing sprint running technique. This study examines the relationship between hip flexibility and 100-meter running technique among sports students. To analyze the correlation between hip flexibility and 100-meter running technique among students at STOK Bina Guna Medan. Methods: This cross-sectional study involved 45 students from STOK Bina Guna Medan enrolled in athletics courses. Hip flexibility was measured using a goniometer for hip flexion and extension range of motion. Running technique was assessed using a validated running technique observation instrument. Data analysis employed Pearson Product Moment correlation with significance level p<0.05. Results: Results showed significant positive correlations between hip flexion flexibility and running technique (r=0.672, p<0.001) and hip extension flexibility and running technique (r=0.589, p<0.001). Overall hip flexibility contributed 48.3% to the variation in 100-meter running technique. Conclusion: There is a significant positive relationship between hip flexibility and 100-meter running technique. Improving hip flexibility can contribute to better sprint running technique.
HUBUNGAN KEPERCAYAAN DIRI DENGAN KECEMASAN BERBICARA DI DEPAN UMUM PADA SISWA KELAS VIII UPT SMP NEGERI 22 MEDAN Maharani Arfah Nst; Nuraini Nuraini
Jurnal Keluarga Sehat Sejahtera Vol. 24 No. 2 (2026): JURNAL KELUARGA SEHAT SEJAHTERA (In-Press)
Publisher : Universitas Negeri Medan

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Abstract

This study aims to determine the relationship between self-confidence and public speaking anxiety among 8th-grade students at UPT SMP Negeri 22 Medan. A quantitative correlational approach was employed, involving a population of 255 students and a sample of 72 students selected via simple random sampling. Data collection was conducted using self-confidence and public speaking anxiety scales. Prior to data collection, the research instruments underwent pilot testing to assess their suitability. Validity test results indicated that all statement items were valid, as the correlation values ​​between item scores and total scores (r_{count}) exceeded the table value (r_{table}) (r > 0.361). Reliability testing using the Cronbach's Alpha formula yielded coefficients of 0.905 for the self-confidence scale and 0.885 for the public speaking anxiety scale; both instruments were deemed highly reliable as the values ​​exceeded 0.6. Data analysis utilized the Pearson Product-Moment correlation test. The normality test showed a value of 0.200, indicating a normal data distribution. The linearity test yielded a "deviation from linearity" significance value of 0.519, signifying a linear negative relationship between self-confidence and public speaking anxiety. The correlation test results showed a coefficient of -0.771 with a significance level of p = 0.008 (p < 0.05), leading to the conclusion that there is a significant negative relationship categorized as "high" between self-confidence and public speaking anxiety among students at UPT SMP Negeri 22 Medan. In other words, the study's hypothesis was accepted.
Co-Authors M. Syahputra Maharani Arfah Nst Nopi Hardiyanto Nurfadillah Siregar Ody Pratama Elmahdi