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Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes' Performance

Yıl 2026, Cilt: 28 Sayı: 1 , 80 - 105 , 30.04.2026
https://doi.org/10.15314/tsed.1727923
https://izlik.org/JA63MZ96BF

Öz

This study aims to examine the impact of the physical and emotional changes experienced by female athletes during the menstrual cycle on their sports performance. Qualitative data obtained from 346 Reddit comments were analyzed using digital text mining techniques. The research employed sentiment analysis (NRC and VADER), topic modeling (LDA), and word association analysis (Word2Vec), alongside interpretative phenomenological analysis (IPA) and traditional content analysis to deeply explore user experiences. The findings reveal that female athletes experience significant variations in energy levels, motivation, focus, and physical capacity across different phases of the menstrual cycle. While some participants reported decreased performance during menstruation, others described enhanced strength and energy, referring to this as a form of "period power." The role of hygiene products and their practical usability in shaping performance outcomes was also emphasized. Additionally, the study draws attention to the potential effects of hormonal changes on injury risk. In this context, it concludes that the menstrual cycle affects sports performance not only physiologically but also psychologically. The results highlight the importance of developing individualized training strategies tailored to the phases of the menstrual cycle and to athletes’ personal experiences.

Kaynakça

  • 1. Bruinvels G, Goldsmith E, Blagrove R, Simpkin A, Lewis N, Morton K, Pedlar C. Prevalence and frequency of menstrual cycle symptoms are associated with availability to train and compete: A study of 6812 exercising women recruited using the Strava exercise app. Br J Sports Med. 2020;55(8):438–43. https://doi.org/10.1136/bjsports-2020-102792.
  • 2. Brown N, Knight C, Forrest L. Elite female athletes’ experiences and perceptions of the menstrual cycle on training and sport performance. Scand J Med Sci Sports. 2020;31(1):52–69. https://doi.org/10.1111/sms.13818.
  • 3. Moreno T, Araújo M, Benayon P, Faroni R, Barsottini C, Sartori M. Sports gynecology: A new way to improve female athletes care and performance. Rev Bras Med Esporte. 2024;30. https://doi.org/10.1590/1517-8692202430012022_0418i.
  • 4. Rosen P, Ekenros L, Solli G, Sandbakk Ø, Holmberg H, Hirschberg A, Fridén C. Offered support and knowledge about the menstrual cycle in the athletic community: A cross-sectional study of 1086 female athletes. Int J Environ Res Public Health. 2022;19(19):11932. https://doi.org/10.3390/ijerph191911932.
  • 5. Yapıcı-Öksüzoğlu A, Egesoy H. The effect of menstrual cycle on anaerobic power and jumping performance. Pedagogy Phys Cult Sports. 2021;25(6):367–72. https://doi.org/10.15561/26649837.2021.0605.
  • 6. Simplice I, Dieu D, Alain M, Louniongo G, Rock G, Nigan I. Influence of the menstrual cycle on the performance of different physical tests specific to handball. Int J Sports Exerc Med. 2022;8(5). https://doi.org/10.23937/2469-5718/1510234.
  • 7. Marais N, Morris-Eyton H, Rensburg N. The perceived knowledge of the menstruation cycle and adjustment of swimming sets by swimming coaches based on menstrual-related issues. South Afr J Sports Med. 2022;34(1). https://doi.org/10.17159/2078- 516x/2022/v34i1a1385.
  • 8. Gopalan S. Examining the coach–athlete relationship for facilitators and barriers to healthy sport participation for cyclically menstruating athletes: A systematic review. Int J Sports Sci Coaching. 2024;19(4):1785–1800. https://doi.org/10.1177/17479541241239925.
  • 9. Johnson K. Influence of the menstrual cycle and training on the performance of a perturbed single-leg squatting task in female collegiate athletes. Orthop J Sports Med. 2024;12(6). https://doi.org/10.1177/23259671241251720.
  • 10. 10. Laske H, Konjer M, Meier H. Menstruation and training – a quantitative study of (non-)communication about the menstrual cycle in German sports clubs. Int J Sports Sci Coaching. 2022;19(1):129–40. https://doi.org/10.1177/17479541221143061.
  • 11. Alnefaie Z. The effect of the menstrual cycle on physical characteristics (speed, strength and endurance) in women in Saudi Arabia. Int J Reprod Contracept Obstet Gynecol. 2024;13(6):1626–31. https://doi.org/10.18203/2320-1770.ijrcog20241464.
  • 12. Carmichael M, Thomson R, Moran L, Wycherley T. The impact of menstrual cycle phase on athletes’ performance: A narrative review. Int J Environ Res Public Health. 2021;18(4):1667. https://doi.org/10.3390/ijerph18041667.
  • 13. Güler İ. Investigation of the effect of menstruation period on sportive performance of women’s volleyball players. Afr Educ Res J. 2020;8(2):387–91. https://doi.org/10.30918/aerj.82.20.068.
  • 14. Brown N, Knight C. Understanding female coaches’ and practitioners’ experience and support provision in relation to the menstrual cycle. Int J Sports Sci Coaching. 2021;17(2):235–43. https://doi.org/10.1177/17479541211058579 .
  • 15. Findlay R, Macrae E, Whyte I, Easton C, Forrest L. How the menstrual cycle and menstruation affect sporting performance: Experiences and perceptions of elite female rugby players. Br J Sports Med. 2020;54(18):1108–13. https://doi.org/10.1136/bjsports-2019-101486.
  • 16. Clarke A, Govus A, Donaldson A. What male coaches want to know about the menstrual cycle in women’s team sports: Performance, health and communication. Int J Sports Sci Coaching. 2021;16(3):544– 53. https://doi.org/10.1177/1747954121989237.
  • 17. Kishali NF, Imamoglu O, Katkat D, Atan T, Akyol P. Effects of menstrual cycle on sports performance. Int J Neurosci. 2006;116(12):1549–63.
  • 18. Taim BC, Ó Catháin C, Renard M, Elliott-Sale KJ, Madigan S, Ní Chéilleachair N. The prevalence of menstrual cycle disorders and menstrual cycle-related symptoms in female athletes: A systematic literature review. Sports Med. 2023;53(10):1963–84.
  • 19. Wojtys EM, Huston LJ, Boynton MD, Spindler KP, Lindenfeld TN. The effect of the menstrual cycle on anterior cruciate ligament injuries in women as determined by hormone levels. Am J Sports Med. 2002;30(2):182–8.
  • 20. Julian R, Hecksteden A, Fullagar HH, Meyer T. The effects of menstrual cycle phase on physical performance in female soccer players. PLoS One. 2017;12(3):e0173951.
  • 21. Ronca F, Blodgett JM, Bruinvels G, Lowery M, Raviraj M, Sandhar G, Burgess PW. Attentional, anticipatory and spatial cognition fluctuate throughout the menstrual cycle: Potential implications for female sport. Neuropsychologia. 2025;206:108909.
  • 22. Isenmann E, Held S, Geisler S, Flenker U, Jeffreys I, Zinner C. The effect of the menstrual cycle phases on back squat performance, jumping ability and psychological state in women according to their level of performance: A randomized three-arm crossover study. BMC Sports Sci Med Rehabil. 2024;16(1):224.
  • 23. Meignié A, Duclos M, Carling C, Orhant E, Provost P, Toussaint JF, Antero J. The effects of menstrual cycle phase on elite athlete performance: A critical and systematic review. Front Physiol. 2021;12:654585.
  • 24. Quadagno D, Faquin L, Lim GN, Kuminka W, Moffatt R. The menstrual cycle: Does it affect athletic performance? Phys Sportsmed. 1991;19(3):121–4.
  • 25. Armour M, Parry KA, Steel K, Smith CA. Australian female athlete perceptions of the challenges associated with training and competing when menstrual symptoms are present. Int J Sports Sci Coaching. 2020;15(3):316–23.
  • 26. Ergin E, Kartal A. Menstrual cycle and sporting performance perceptions of elite volleyball players. Int J Appl Exerc Physiol. 2020;9(10):57–64.
  • 27. Solli GS, Sandbakk SB, Noordhof DA, Ihalainen JK, Sandbakk Ø. Changes in self-reported physical fitness, performance and side effects across the phases of the menstrual cycle among competitive endurance athletes. Int J Sports Physiol Perform. 2020;15(9):1324–33.
  • 28. Cook CJ, Kilduff LP, Crewther BT. Basal and stress‐induced salivary testosterone variation across the menstrual cycle and linkage to motivation and muscle power. Scand J Med Sci Sports. 2018;28(4):1345–53.
  • 29. Davidsen A. Phenomenological approaches in psychology and health sciences. Qual Res Psychol. 2013;10(3):318–39. https://doi.org/10.1080/14780887.2011.608466.
  • 30. Smith JA, Fieldsend M. Interpretative phenomenological analysis. In: Camic PM, editor. Qualitative research in psychology: Expanding perspectives in methodology and design. 2nd ed. Washington (DC): American Psychological Association; 2021. p. 147–66. https://doi.org/10.1037/0000252-008.
  • 31. Colenso-Semple L, D'Souza A, Elliott‐Sale K, Phillips S. Current evidence shows no influence of women's menstrual cycle phase on acute strength performance or adaptations to resistance exercise training. Front Sports Act Living. 2023;5. https://doi.org/10.3389/fspor.2023.1054542.
  • 32. Dam T, Dalgaard L, Sevdalis V, Bibby B, Jonge X, Gravholt C, Hansen M. Muscle performance during the menstrual cycle correlates with psychological well-being, but not fluctuations in sex hormones. Med Sci Sports Exerc. 2022;54(10):1678–89. https://doi.org/10.1249/mss.0000000000002961.
  • 33. Ekenros L. Impact of menstrual cycle-based periodized training on aerobic performance, a clinical trial study protocol—the impact study. Trials. 2024;25(1). https://doi.org/10.1186/s13063-024-07921-4.
  • 34. Lei T, Stannard S, Perry B, Schlader Z, Cotter J, Mündel T. Influence of menstrual phase and arid vs. humid heat stress on autonomic and behavioural thermoregulation during exercise in trained but unacclimated women. J Physiol. 2017;595(9):2823–31. https://doi.org/10.1113/jp273176.

Engel, Güçlendirici mi Yoksa Avantaj mı? Kadın Sporcuların Performansında Menstrüel Döngünün Rolüne Dair Metin Madenciliği Destekli Nitel Bir İnceleme

Yıl 2026, Cilt: 28 Sayı: 1 , 80 - 105 , 30.04.2026
https://doi.org/10.15314/tsed.1727923
https://izlik.org/JA63MZ96BF

Öz

Bu çalışma, kadın sporcuların menstrüel döngü sürecinde yaşadığı fiziksel ve duygusal değişimlerin spor performansları üzerindeki etkisini incelemeyi amaçlamaktadır. Reddit platformundan elde edilen 346 yoruma dayalı nitel veriler, dijital metin madenciliği teknikleri kullanılarak analiz edilmiştir. Çalışmada duygu analizi (NRC ve VADER), konu modelleme (LDA) ve sözcük ilişkilendirme analizi (Word2Vec) gibi yöntemlerin yanı sıra yorumsamacı fenomenolojik analiz (IPA) ve geleneksel içerik analizi de kullanılarak kullanıcı deneyimleri derinlemesine incelenmiştir.

Bulgular, kadın sporcuların menstrüel döngünün farklı evrelerinde enerji düzeylerinde, motivasyonlarında, odaklanmalarında ve fiziksel kapasitelerinde belirgin dalgalanmalar yaşadıklarını göstermektedir. Katılımcıların bir kısmı adet döneminde performans düşüşü bildirmişken, bazıları bu dönemde güç ve enerjilerinin arttığını, bu durumu “regl gücü” olarak tanımladıklarını ifade etmiştir. Hijyen ürünlerinin kullanışlılığı ve performans üzerindeki etkisine de dikkat çekilmiştir. Ayrıca, hormonal değişimlerin sakatlık riski üzerindeki olası etkilerine işaret edilmiştir. Bu bağlamda çalışma, menstrüel döngünün spor performansını yalnızca fizyolojik değil, aynı zamanda psikolojik olarak da etkilediği sonucuna varmaktadır. Sonuçlar, menstrüel döngü evrelerine ve sporcuların bireysel deneyimlerine göre özelleştirilmiş antrenman stratejilerinin geliştirilmesinin önemini ortaya koymaktadır.

Kaynakça

  • 1. Bruinvels G, Goldsmith E, Blagrove R, Simpkin A, Lewis N, Morton K, Pedlar C. Prevalence and frequency of menstrual cycle symptoms are associated with availability to train and compete: A study of 6812 exercising women recruited using the Strava exercise app. Br J Sports Med. 2020;55(8):438–43. https://doi.org/10.1136/bjsports-2020-102792.
  • 2. Brown N, Knight C, Forrest L. Elite female athletes’ experiences and perceptions of the menstrual cycle on training and sport performance. Scand J Med Sci Sports. 2020;31(1):52–69. https://doi.org/10.1111/sms.13818.
  • 3. Moreno T, Araújo M, Benayon P, Faroni R, Barsottini C, Sartori M. Sports gynecology: A new way to improve female athletes care and performance. Rev Bras Med Esporte. 2024;30. https://doi.org/10.1590/1517-8692202430012022_0418i.
  • 4. Rosen P, Ekenros L, Solli G, Sandbakk Ø, Holmberg H, Hirschberg A, Fridén C. Offered support and knowledge about the menstrual cycle in the athletic community: A cross-sectional study of 1086 female athletes. Int J Environ Res Public Health. 2022;19(19):11932. https://doi.org/10.3390/ijerph191911932.
  • 5. Yapıcı-Öksüzoğlu A, Egesoy H. The effect of menstrual cycle on anaerobic power and jumping performance. Pedagogy Phys Cult Sports. 2021;25(6):367–72. https://doi.org/10.15561/26649837.2021.0605.
  • 6. Simplice I, Dieu D, Alain M, Louniongo G, Rock G, Nigan I. Influence of the menstrual cycle on the performance of different physical tests specific to handball. Int J Sports Exerc Med. 2022;8(5). https://doi.org/10.23937/2469-5718/1510234.
  • 7. Marais N, Morris-Eyton H, Rensburg N. The perceived knowledge of the menstruation cycle and adjustment of swimming sets by swimming coaches based on menstrual-related issues. South Afr J Sports Med. 2022;34(1). https://doi.org/10.17159/2078- 516x/2022/v34i1a1385.
  • 8. Gopalan S. Examining the coach–athlete relationship for facilitators and barriers to healthy sport participation for cyclically menstruating athletes: A systematic review. Int J Sports Sci Coaching. 2024;19(4):1785–1800. https://doi.org/10.1177/17479541241239925.
  • 9. Johnson K. Influence of the menstrual cycle and training on the performance of a perturbed single-leg squatting task in female collegiate athletes. Orthop J Sports Med. 2024;12(6). https://doi.org/10.1177/23259671241251720.
  • 10. 10. Laske H, Konjer M, Meier H. Menstruation and training – a quantitative study of (non-)communication about the menstrual cycle in German sports clubs. Int J Sports Sci Coaching. 2022;19(1):129–40. https://doi.org/10.1177/17479541221143061.
  • 11. Alnefaie Z. The effect of the menstrual cycle on physical characteristics (speed, strength and endurance) in women in Saudi Arabia. Int J Reprod Contracept Obstet Gynecol. 2024;13(6):1626–31. https://doi.org/10.18203/2320-1770.ijrcog20241464.
  • 12. Carmichael M, Thomson R, Moran L, Wycherley T. The impact of menstrual cycle phase on athletes’ performance: A narrative review. Int J Environ Res Public Health. 2021;18(4):1667. https://doi.org/10.3390/ijerph18041667.
  • 13. Güler İ. Investigation of the effect of menstruation period on sportive performance of women’s volleyball players. Afr Educ Res J. 2020;8(2):387–91. https://doi.org/10.30918/aerj.82.20.068.
  • 14. Brown N, Knight C. Understanding female coaches’ and practitioners’ experience and support provision in relation to the menstrual cycle. Int J Sports Sci Coaching. 2021;17(2):235–43. https://doi.org/10.1177/17479541211058579 .
  • 15. Findlay R, Macrae E, Whyte I, Easton C, Forrest L. How the menstrual cycle and menstruation affect sporting performance: Experiences and perceptions of elite female rugby players. Br J Sports Med. 2020;54(18):1108–13. https://doi.org/10.1136/bjsports-2019-101486.
  • 16. Clarke A, Govus A, Donaldson A. What male coaches want to know about the menstrual cycle in women’s team sports: Performance, health and communication. Int J Sports Sci Coaching. 2021;16(3):544– 53. https://doi.org/10.1177/1747954121989237.
  • 17. Kishali NF, Imamoglu O, Katkat D, Atan T, Akyol P. Effects of menstrual cycle on sports performance. Int J Neurosci. 2006;116(12):1549–63.
  • 18. Taim BC, Ó Catháin C, Renard M, Elliott-Sale KJ, Madigan S, Ní Chéilleachair N. The prevalence of menstrual cycle disorders and menstrual cycle-related symptoms in female athletes: A systematic literature review. Sports Med. 2023;53(10):1963–84.
  • 19. Wojtys EM, Huston LJ, Boynton MD, Spindler KP, Lindenfeld TN. The effect of the menstrual cycle on anterior cruciate ligament injuries in women as determined by hormone levels. Am J Sports Med. 2002;30(2):182–8.
  • 20. Julian R, Hecksteden A, Fullagar HH, Meyer T. The effects of menstrual cycle phase on physical performance in female soccer players. PLoS One. 2017;12(3):e0173951.
  • 21. Ronca F, Blodgett JM, Bruinvels G, Lowery M, Raviraj M, Sandhar G, Burgess PW. Attentional, anticipatory and spatial cognition fluctuate throughout the menstrual cycle: Potential implications for female sport. Neuropsychologia. 2025;206:108909.
  • 22. Isenmann E, Held S, Geisler S, Flenker U, Jeffreys I, Zinner C. The effect of the menstrual cycle phases on back squat performance, jumping ability and psychological state in women according to their level of performance: A randomized three-arm crossover study. BMC Sports Sci Med Rehabil. 2024;16(1):224.
  • 23. Meignié A, Duclos M, Carling C, Orhant E, Provost P, Toussaint JF, Antero J. The effects of menstrual cycle phase on elite athlete performance: A critical and systematic review. Front Physiol. 2021;12:654585.
  • 24. Quadagno D, Faquin L, Lim GN, Kuminka W, Moffatt R. The menstrual cycle: Does it affect athletic performance? Phys Sportsmed. 1991;19(3):121–4.
  • 25. Armour M, Parry KA, Steel K, Smith CA. Australian female athlete perceptions of the challenges associated with training and competing when menstrual symptoms are present. Int J Sports Sci Coaching. 2020;15(3):316–23.
  • 26. Ergin E, Kartal A. Menstrual cycle and sporting performance perceptions of elite volleyball players. Int J Appl Exerc Physiol. 2020;9(10):57–64.
  • 27. Solli GS, Sandbakk SB, Noordhof DA, Ihalainen JK, Sandbakk Ø. Changes in self-reported physical fitness, performance and side effects across the phases of the menstrual cycle among competitive endurance athletes. Int J Sports Physiol Perform. 2020;15(9):1324–33.
  • 28. Cook CJ, Kilduff LP, Crewther BT. Basal and stress‐induced salivary testosterone variation across the menstrual cycle and linkage to motivation and muscle power. Scand J Med Sci Sports. 2018;28(4):1345–53.
  • 29. Davidsen A. Phenomenological approaches in psychology and health sciences. Qual Res Psychol. 2013;10(3):318–39. https://doi.org/10.1080/14780887.2011.608466.
  • 30. Smith JA, Fieldsend M. Interpretative phenomenological analysis. In: Camic PM, editor. Qualitative research in psychology: Expanding perspectives in methodology and design. 2nd ed. Washington (DC): American Psychological Association; 2021. p. 147–66. https://doi.org/10.1037/0000252-008.
  • 31. Colenso-Semple L, D'Souza A, Elliott‐Sale K, Phillips S. Current evidence shows no influence of women's menstrual cycle phase on acute strength performance or adaptations to resistance exercise training. Front Sports Act Living. 2023;5. https://doi.org/10.3389/fspor.2023.1054542.
  • 32. Dam T, Dalgaard L, Sevdalis V, Bibby B, Jonge X, Gravholt C, Hansen M. Muscle performance during the menstrual cycle correlates with psychological well-being, but not fluctuations in sex hormones. Med Sci Sports Exerc. 2022;54(10):1678–89. https://doi.org/10.1249/mss.0000000000002961.
  • 33. Ekenros L. Impact of menstrual cycle-based periodized training on aerobic performance, a clinical trial study protocol—the impact study. Trials. 2024;25(1). https://doi.org/10.1186/s13063-024-07921-4.
  • 34. Lei T, Stannard S, Perry B, Schlader Z, Cotter J, Mündel T. Influence of menstrual phase and arid vs. humid heat stress on autonomic and behavioural thermoregulation during exercise in trained but unacclimated women. J Physiol. 2017;595(9):2823–31. https://doi.org/10.1113/jp273176.
Toplam 34 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Egzersiz ve Spor Bilimleri (Diğer)
Bölüm Araştırma Makalesi
Yazarlar

Muzaffer Toprak Keskin 0000-0001-9439-0094

Gönderilme Tarihi 26 Haziran 2025
Kabul Tarihi 30 Aralık 2025
Yayımlanma Tarihi 30 Nisan 2026
DOI https://doi.org/10.15314/tsed.1727923
IZ https://izlik.org/JA63MZ96BF
Yayımlandığı Sayı Yıl 2026 Cilt: 28 Sayı: 1

Kaynak Göster

APA Keskin, M. T. (2026). Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance. Turkish Journal of Sport and Exercise, 28(1), 80-105. https://doi.org/10.15314/tsed.1727923
AMA 1.Keskin MT. Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance. Turkish Journal of Sport and Exercise. 2026;28(1):80-105. doi:10.15314/tsed.1727923
Chicago Keskin, Muzaffer Toprak. 2026. “Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance”. Turkish Journal of Sport and Exercise 28 (1): 80-105. https://doi.org/10.15314/tsed.1727923.
EndNote Keskin MT (01 Nisan 2026) Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance. Turkish Journal of Sport and Exercise 28 1 80–105.
IEEE [1]M. T. Keskin, “Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance”, Turkish Journal of Sport and Exercise, c. 28, sy 1, ss. 80–105, Nis. 2026, doi: 10.15314/tsed.1727923.
ISNAD Keskin, Muzaffer Toprak. “Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance”. Turkish Journal of Sport and Exercise 28/1 (01 Nisan 2026): 80-105. https://doi.org/10.15314/tsed.1727923.
JAMA 1.Keskin MT. Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance. Turkish Journal of Sport and Exercise. 2026;28:80–105.
MLA Keskin, Muzaffer Toprak. “Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance”. Turkish Journal of Sport and Exercise, c. 28, sy 1, Nisan 2026, ss. 80-105, doi:10.15314/tsed.1727923.
Vancouver 1.Muzaffer Toprak Keskin. Barrier, Booster, or Strength? A Text Mining–Enhanced Qualitative Inquiry into the Role of the Menstrual Cycle in Female Athletes’ Performance. Turkish Journal of Sport and Exercise. 01 Nisan 2026;28(1):80-105. doi:10.15314/tsed.1727923
Türk Spor ve Egzersiz Dergisi (TJSE) Creative Commons Atıf-GayriTicari 4.0 Uluslararası Lisansı (CC BY NC) ile lisanslanmıştır.