Profesyonel Doğal Vücut Geliştiricilerinden Diyafram Kalınlığının 1RM Kuvvetine Etkisi

Öz

Profesyonel doğal vücut geliştirmeciler üzerinde yapılan çalışmalarda farklı antrenman yüklerinin performans üzerindeki olumlu etkileri iyi bilinmesine rağmen, diyafram kas kalınlığının 1RM kuvvetini nasıl etkilendiği belirsizdir. Çalışmanın amacı, diyafram kas kalınlığının profesyonel doğal vücut geliştiricilerde tek tekrar maksimal kuvveti (1RM) ile ilişkisinin incelenmesidir. Çalışmaya ulusal ve uluslararası yarışmalara katılmış aktif spor yapan 15 profesyonel doğal vücut geliştirici dâhil edilmiştir. Deneklerden solunum fonksiyon testleri, 1RM ve diyafram kas kalınlık ölçümleri alınmıştır. Elde edilen verilerin analizleri SPSS 25 istatistik paket programı ile hesaplanmıştır. Çalışmada 1RM değeri ile FVC, FEV1 ve PEFmax parametreleri ile pozitif anlamlı yüksek ilişki olduğu tespit edildi. FEV1/FVC oranı ile negatif düşük düzeyde bir ilişki tespit edildi. 1RM ile dinlenme, ekspirasyon ve inspirasyon evrelerinde diyafram kas kalınlığı ile pozitif orta düzeyde bir ilişki tespit edildi. Sonuç olarak, bu çalışma, diyafram kas kalınlığının vücut geliştirme antrenmanlarında 1RM performansı ile ilişkili olduğunu ortaya koymaktadır. Özellikle, diyafram kasının sadece solunumu destekleyen bir kas olarak değil, aynı zamanda intra-abdominal basıncı optimize ederek güç üretimine katkı sağlayan bir kas olarak da değerlendirilmesi gerektiğini göstermektedir.

Anahtar Kelimeler

• Diyafram Kas Kalınlığı
• Vücut geliştirme
• 1RM.

The Effect of Diaphragm Thickness on 1RM Force From Professional Natural Bodybuilder

Öz

Despite the well-documented positive effects of varying training loads on performance, as evidenced by studies on professional natural bodybuilders, the impact of diaphragm muscle thickness on 1RM strength remains unclear. The objective of this study was to examine the correlation between diaphragm muscle thickness and single repetition maximal force (1RM) in professional natural bodybuilders. The present study comprised a total of 15 professional natural bodybuilders who had participated in national and international competitions. Pulmonary function tests, 1RM and diaphragm muscle thickness measurements were obtained from the subjects. The subsequent analyses of the obtained data were calculated with the use of the SPSS 25 statistical package programme. The study established a positive and significant high correlation between the 1RM value and the FVC, FEV1 and PEFmax parameters. A negative low-level correlation was identified with the FEV1/FVC ratio. A positive moderate correlation was identified between 1RM and diaphragm muscle thickness during the rest, expiration and inspiration phases. In conclusion, this study reveals that diaphragm muscle thickness is associated with 1RM performance in bodybuilding training. In particular, it demonstrates that the diaphragm muscle should be regarded not only as a muscle responsible for respiration, but also as a muscle that contributes to power generation by optimising intra-abdominal pressure.

Anahtar Kelimeler

• Diaphragm Muscle Thickness
• Bodybuilding
• 1RM.

Kaynakça

1. Abe, T., DeHoyos, D. V., Pollock, M. L., & Garzarella, L. (2000). Time course for strength and muscle thickness changes following upper and lower body resistance training in men and women. European journal of applied physiology, 81, 174-180.DOI: 10.1007/s004210050027
2. American Thoracic Society. (2002). ATS/ERS statement on respiratory muscle testing. Am J Respir Crit Care Med. 166, 518-624. DOI: 10.1164/rccm.166.4.518
3. Cardenas, L. Z., Santana, P. V., Caruso, P., de Carvalho, C. R. R., & de Albuquerque, A. L. P. (2018). Diaphragmatic ultrasound correlates with inspiratory muscle strength and pulmonary function in healthy subjects. Ultrasound in medicine & biology, 44(4), 786-793.
4. Cavaggioni, L., Ongaro, L., Zannin, E., Iaia, F. M., & Alberti, G. (2015). Effects of different core exercises on respiratory parameters and abdominal strength. Journal of physical therapy science, 27(10), 3249-3253. DOİ:10.1589/jpts.27.3249
5. Çelikel, B. E., Yılmaz, C., Demir, A., Sezer, S. Y., Ceylan, L., Ceylan, T., & Tan, Ç. (2025). Effects of inspiratory muscle training on 1RM performance and body composition in professional natural bodybuilders. Frontiers in Physiology, 16, 1574439. DOİ: 10.3389/fphys.2025.1574439
6. Dempsey, J. A., Romer, L., Rodman, J., Miller, J., & Smith, C. (2006). Consequences of exercise-induced respiratory muscle work. Respiratory physiology & neurobiology, 151(2-3), 242-250.
7. DePalo, V. A., Parker, A. L., Al-Bilbeisi, F., & McCool, F. D. (2004). Respiratory muscle strength training with nonrespiratory maneuvers. Journal of Applied Physiology, 96(2), 731-734. DOI:10.1152/japplphysiol.00511.2003
8. Durmic, T., Popovic, B. L., Svenda, M. Z., Djelic, M., Zugic, V., Gavrilovic, T., ... & Leischik, R. (2017). The training type influence on male elite athletes’ ventilatory function. BMJ open sport & exercise medicine, 3(1), e000240. DOI:10.1136/bmjsem-2017-000240

9. Enright, S. J., Unnithan, V. B., Heward, C., Withnall, L., & Davies, D. H. (2006). Effect of high-intensity inspiratory muscle training on lung volumes, diaphragm thickness, and exercise capacity in subjects who are healthy. Physical therapy, 86(3), 345-354.DOI:10.1093/ptj/86.3.345
10. Erail, S., Bostancı, Ö., & Polat, A. (2022). Ultrasound assessment of diaphragm thickness in athletes. International Journal of Morphology, 40(2), 376-383.
11. Granata, C., Jamnick, N. A., & Bishop, D. J. (2018). Training-induced changes in mitochondrial content and respiratory function in human skeletal muscle. Sports Medicine, 48(8), 1809-1828.
12. Güler, İ., Yılmaz, C., Soylu, H. H., Birinci, M. C., Arslan, A., Ocak, H., ... & Ceylan, L. Inspiratory muscle training in natural bodybuilders: Adaptations in diaphragm muscle thickness and maximal strength. Frontiers in Physiology, 16, 1628146. DOI: 10.3389/fphys.2025.1628146
13. Harms, C. A., Wetter, T. J., St. Croix, C. M., Pegelow, D. F., & Dempsey, J. A. (2000). Effects of respiratory muscle work on exercise performance. Journal of applied physiology, 89(1), 131-138.
14. Hackett, D. A. (2020). Lung function and respiratory muscle adaptations of endurance-and strength-trained males. Sports, 8(12), 160. DOI:10.3390/sports8120160
15. Hellyer, N. J., Andreas, N. M., Bernstetter, A. S., Cieslak, K. R., Donahue, G. F., Steiner, E. A., ... et al. (2017). Comparison of diaphragm thickness measurements among postures via ultrasound imaging. PM&R, 9(1), 21-25.
16. Hellyer, N. J., Folsom, I. A., Gaz, D. V., Kakuk, A. C., Mack, J. L., & Ver Mulm, J. A. (2015). Respiratory muscle activity during simultaneous stationary cycling and inspiratory muscle training. The Journal of Strength & Conditioning Research, 29(12), 3517-3522.
17. Hildebran, J. N., Goerke, J., & Clements, J. A. (1981). Surfactant release in excised rat lung is stimulated by air inflation. Journal of Applied Physiology, 51(4), 905-910.
18. Holtzhausen, S., Unger, M., Lupton-Smith, A., & Hanekom, S. (2018). An investigation into the use of ultrasound as a surrogate measure of diaphragm function. Heart & Lung, 47(4), 418-424.
19. Jung, K. J., Park, J. Y., Hwang, D. W., Kim, J. H., & Kim, J. H. (2014). Ultrasonographic diaphragmatic motion analysis and its correlation with pulmonary function in hemiplegic stroke patients. Annals of rehabilitation medicine, 38(1), 29-37.
20. Kim, M., Lee, K., Cho, J., & Lee, W. (2017). Diaphragm thickness and inspiratory muscle functions in chronic stroke patients. Medical Science Monitor: International Medical Journal of Experimental and Clinical Research, 23, 1247-1253.
21. Küçük, H., Soyler, M., Ceylan, T., Ceylan, L., & Şahin, F. (2024). Effects of acute and chronic high-intensity interval training on serum irisin, BDNF and apelin levels in male soccer referees. Journal of Men's Health, 20(2),120-125.
22. MacDougall, J. D., McKelvie, R. S., Moroz, D. E., Sale, D. G., McCartney, N., & Buick, F. (1992). Factors affecting blood pressure during heavy weight lifting and static contractions. Journal of Applied Physiology, 73(4), 1590-1597. DOI:10.1152/jappl.1992.73.4.1590
23. Mairbäurl, H. (2013). Red blood cells in sports: effects of exercise and training on oxygen supply by red blood cells. Frontiers in physiology, 4, 332. DOI: 10.3389/fphys.2013.00332
24. Martuscello, J. M., Nuzzo, J. L., Ashley, C. D., Campbell, B. I., Orriola, J. J., & Mayer, J. M. (2013). Systematic review of core muscle activity during physical fitness exercises. The Journal of Strength & Conditioning Research, 27(6), 1684-1698. DOI:10.1519/JSC.0b013e318291b8da
25. Mayhew, J. L., Prinster, J. L., Ware, J. S., Zimmer, D. L., Arabas, J. R., & Bemben, M. G. (1995). Muscular endurance repetitions to predict bench press strength in men of different training levels. The Journal of sports medicine and physical fitness, 35(2), 108-113.
26. McConnell, A. K., & Lomax, M. (2006). The influence of inspiratory muscle work history and specific inspiratory muscle training upon human limb muscle fatigue. The Journal of physiology, 577(1), 445-457. DOI:10.1113/jphysiol.2006.117614
27. Mizuno, M. (1991). Human respiratory muscles: fibre morphology and capillary supply. European Respiratory Journal, 4(5), 587-601.
28. Niewiadomski, W., Pilis, W., Laskowska, D., Gąsiorowska, A., Cybulski, G., & Strasz, A. (2012). Effects of a brief Valsalva manoeuvre on hemodynamic response to strength exercises. Clinical physiology and functional imaging, 32(2), 145-157. DOI:10.1111/j.1475-097X.2011.01069.x
29. Ranković, G., Mutavdžić, V., Toskić, D., Preljević, A., Kocić, M., Nedin-Ranković, G., & Damjanović, N. (2010). Aerobic capacity as an indicator in different kinds of sports. Bosnian Journal of Basic Medical Sciences, 10(1), 44-48.
30. Pérez-Castilla, A., Jerez-Mayorga, D., Martínez-García, D., Rodríguez-Perea, Á., Chirosa-Ríos, L. J., & García-Ramos, A. (2020). Comparison of the bench press one-repetition maximum obtained by different procedures: Direct assessment vs. lifts-to-failure equations vs. two-point method. International Journal of Sports Science & Coaching, 15(3), 337-346. DOI: 10.1177/17479541209113
31. Polla, B., D’Antona, G., Bottinelli, R., & Reggiani, C. (2004). Respiratory muscle fibres: specialisation and plasticity. Thorax, 59(9), 808-817.
32. Scott, W., Stevens, J., & Binder–Macleod, S. A. (2001). Human skeletal muscle fiber type classifications. Physical therapy, 81(11), 1810-1816.
33. Sheel, A. W., Boushel, R., & Dempsey, J. A. (2018). Competition for blood flow distribution between respiratory and locomotor muscles: implications for muscle fatigue. Journal of applied physiology, 125(3), 820-831. DOI: 10.1152/japplphysiol.00189.2018
34. Sobierajska-Rek, A., Wasilewska, E., Śledzińska, K., Jabłońska-Brudło, J., Małgorzewicz, S., Wasilewski, A., & Szalewska, D. (2022). The association between the respiratory system and upper limb strength in males with Duchenne muscular dystrophy: a new field for intervention?. International Journal of Environmental Research and Public Health, 19(23), 15675. DOI: 10.3390/ijerph192315675
35. Orrey, S. T. (2014). The relationship between diaphragm thickness, diaphragm strength and diaphragm endurance in young, healthy individuals [Doctoral dissertation, Stellenbosch: Stellenbosch University].
36. Welch, J. F., Archiza, B., Guenette, J. A., West, C. R., & Sheel, A. W. (2018). Effect of diaphragm fatigue on subsequent exercise tolerance in healthy men and women. Journal of applied physiology, 125(12), 1987-1996.
37. Welch, J. F., Kipp, S., & Sheel, A. W. (2019). Respiratory muscles during exercise: mechanics, energetics, and fatigue. Current Opinion in Physiology, 10, 102-109. DOI: 10.1016/j.cophys.2019.04.023
38. Vilaça-Alves, J., Freitas, N. M., Saavedra, F. J., Scott, C. B., Dos Reis, V. M., Simão, R., & Garrido, N. (2016). Comparison of oxygen uptake during and after the execution of resistance exercises and exercises performed on ergometers, matched for intensity. Journal of human kinetics, 53, 179. DOI: 10.1515/hukin-2016-0021