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All Journal ACTIVE: Journal of Physical Education, Sport, Health and Recreation Jurnal Olahraga Kebugaran dan Rehabilitasi (JOKER)
Muhammad Rafi Zulfikar
Universitas Singaperbangsa Karawang
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Hubungan Vertical Jump Dengan Indeks Massa Tubuh Pada Atlet Bola Voli Afidah Sutralia; Liana Azahra; Nazwa Tri Adha; Wajendra Kenny Willa Tikta; Muhammad Rafi Zulfikar
Jurnal Olahraga Kebugaran dan Rehabilitasi (JOKER) Vol 5 No 1 (2025): Jurnal Olahraga Kebugaran dan Rehabilitasi (JOKER)
Publisher : Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/joker.v5i1.13389

Abstract

Kemampuan vertical jump merupakan aspek penting dalam performa atlet bola voli karena berhubungan langsung dengan daya ledak otot tungkai yang dibutuhkan untuk melakukan smash dan block. Penelitian ini bertujuan untuk mengetahui hubungan antara Indeks Massa Tubuh (IMT) dengan kemampuan vertical jump serta menganalisis peningkatan performa lompatan setelah pemberian program latihan. Metode penelitian menggunakan pendekatan kuantitatif dengan desain pre-test dan post-test yang melibatkan 30 atlet bola voli. Uji normalitas Shapiro-Wilk menunjukkan bahwa data post-test tidak berdistribusi normal, sehingga analisis dilanjutkan dengan uji Wilcoxon. Hasil penelitian menunjukkan adanya peningkatan signifikan pada seluruh atlet, ditunjukkan oleh nilai Asymp. Sig. 0,000. Tidak terdapat penurunan nilai vertical jump pada satu pun atlet. Temuan ini menunjukkan bahwa latihan yang diberikan efektif meningkatkan daya ledak otot tungkai, sementara IMT berpotensi memengaruhi efisiensi lompatan atlet.
Doping and Reproductive Health in Female Athletes: A Narrative Literature Review Dafa Wishnu Moerara; Muhammad Rafi Zulfikar; Muhammad Arief Setiawan; Aprillia Wulan Utari; A. Ine Aprilia Damai
ACTIVE: Journal of Physical Education, Sport, Health and Recreation Vol. 15 No. 2 (2026)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/active.v15i2.57710

Abstract

Doping is not only a violation of sport integrity but also a health-risk behaviour with specific implications for female athletes. This narrative literature review synthesises peer-reviewed studies, consensus statements, and official anti-doping documents published mainly between 2014 and 2026. The review focused on prohibited substances and methods that may affect endocrine regulation, menstrual function, fertility potential, virilisation, sexual health, and athlete well-being. The strongest evidence concerns anabolic-androgenic steroids, which can disrupt the hypothalamic-pituitary-ovarian axis, impair ovulation, cause oligomenorrhea or amenorrhea, reduce fertility potential, and produce androgenic changes such as acne, hirsutism, voice deepening, breast atrophy, and clitoromegaly. Human growth hormone, stimulants, hormone modulators, diuretics, and masking practices may contribute to reproductive-health risk indirectly through metabolic disturbance, cardiovascular strain, neuroendocrine stress, appetite suppression, low energy availability, and substance stacking. Menstrual dysfunction should not be interpreted as direct proof of doping because relative energy deficiency in sport, psychological stress, training load, eating disorders, pregnancy, and endocrine disease may produce overlapping symptoms. Prevention therefore requires gender-responsive anti-doping education, confidential medical referral, menstrual-health monitoring, supplement-risk counselling, therapeutic-use guidance, psychological support, and consistent anti-doping control. The review concludes that clean-sport policy should be integrated with reproductive-health protection so that female athletes receive both fair-competition safeguards and clinically appropriate support.
Co-Authors A. Ine Aprilia Damai Afidah Sutralia Aprillia Wulan Utari Dafa Wishnu Moerara Liana Azahra Muhammad Arief Setiawan Nazwa Tri Adha Wajendra Kenny Willa Tikta