Is the 1 Repetition Maximum Estimation Reliable Using the Load-Velocity Relationship? Comparison of Different Methods

Yıl 2023, , 57 - 66, 28.02.2023

Onursal Aksakallı , Ertuğrul Gelen

https://doi.org/10.25307/jssr.1177374

Cited By: 1

Öz

The study aimed to determine the relationship and differences between estimation methods which are the minimal velocity threshold 1RM (1RMMVT) and load at zero velocity 1RM (1RMLD0). The load-velocity relationship was obtained through the 1 repetition maximum (1-RM) with the exercises of free weight and Smith machine barbell bench press. The study consisted of fifteen male who were interested in recreationally bodybuilding with at least five years of resistance training experience. The study was completed in four sessions. Free weight and Smith machine barbell bench press 1RM and the velocity measurements were determined in the 1st and 2nd sessions. The load-velocity profile was generated in the 3rd and 4th sessions with the barbell bench press exercise by using the loads between 30-85% of 1RM determined in the 1st and 2nd sessions. MVT and LD0 methods were used to estimate 1 RM with the load-velocity relationship. Pearson Correlation Analysis was used to determine the relationship between direct measured 1RM and estimation methods and The Repeated Measures ANOVA was used to determine the differences between the three methods. There were strong positive correlations (between r=0.918-0.949 for the Smith machine, between r=0.923-0.937 for free weight) between directly measured 1RM, 1RMMVT, 1RMLD0 in both free weight and Smith machine barbell bench press. However, no statistical difference was found between all 1RM methods (p>0,05). It was found that the estimation methods of 1RMMVT and 1RMLD0 are valid and reliable to estimate 1RM. Practitioners can estimate the 1RM from the load-velocity profile with both the free weight and Smith machine for barbell bench press exercise by using two alternative methods.

Anahtar Kelimeler

Maximal strength, Velocity-based training, Load-velocity relationship, Resistance training

Yük-Hız İlişkisi Kullanılarak Bir Tekrarlı Maksimum Tahmini Güvenilir midir? Farklı Yöntemlerin Karşılaştırılması

Öz

Bu çalışmanın amacı, serbest ağırlık ve Smith makine barbell bench press egzersizindeki doğrudan ölçülen bir tekrarlı maksimum (1TM) ile yük-hız ilişkisinden elde edilen 1TM minimal hız eşiği (1TMMHE) ve 1TM sıfır hızdaki yük (1 TMSHY) tahmin yöntemleri arasındaki ilişkileri ve farklılıkları belirlemektir. Çalışmaya, en az 5 yıl direnç antrenmanı geçmişine sahip rekreasyonel amaçlı vücut geliştirme branşıyla ilgilenen 15 erkek gönüllü olarak katıldı. Çalışma toplam 4 oturumda gerçekleştirildi. Birinci ve ikinci oturumda serbest ağırlık ve Smith makine barbell bench press 1TM ve hızı belirlendi. Üçüncü ve dördüncü oturumda yük-hız profili oluşturmak için birinci ve ikinci oturumlarda belirlenmiş 1 TM’nin %30-85 arasındaki yükler kullanılıp barbell bench press egzersizi gerçekleştirildi. Yük-hız ilişkisinden 1TM tahminleri için MHE ve SHY yöntemleri kullanıldı. Araştırmanın veri analizi için ölçülen gerçek 1TM ile tahmin yöntemleri arasındaki ilişkinin belirlenmesinde Pearson Korelasyon Analizi, üç yöntem arasındaki farkı belirlemek için Tekrarlı Ölçümlerde ANOVA yöntemleri kullanılmıştır. Serbest ağırlık ve Smith makinede gerçekleştirilen doğrudan ölçülmüş gerçek 1TM, 1TMMHE ve 1TMSHY yöntemleri arasında pozitif yönlü çok güçlü ilişki bulunurken (Smith makine için r=0,918-0,949 arasında, Serbest ağırlık için r=0,923-0,937 arasında), tüm 1TM yöntemleri arasında istatistiksel farka rastlanmadı (p>0,05). Araştırmanın sonucuna göre 1TMMHE ve 1TMSHY tahmin yöntemlerinin 1TM’yi tahmin etmede geçerli ve güvenilir olduğu saptanmıştır. Barbell bench press egzersizi için hem serbest ağırlık hem de Smith makinede yük-hız profilinden 1TM’yi tahmin etmek isteyen pratisyenler bu iki yöntemden birisini kullanabilir.

Anahtar Kelimeler

Bench press, Maksimal kuvvet, Hıza dayalı antrenman, Yük-hız ilişkisi, Direnç antrenmanı

Kaynakça

• Balsalobre-Fernández, C., Marchante, D., Muñoz-López, M., & Jiménez, S.L. (2018). Validity and reliability of a novel iPhone app for the measurement of barbell velocity and 1RM on the bench-press exercise. J Sports Sci., 36(1), 64–70. https://doi.org/10.1080/02640414.2017.1280610
• Braith, R.W., Graves, J.E., Leggett, S.H., & Pollock, M.L. (1993). Effect of training on the relationship between maximal and submaximal strength. Med Sci Sports Exerc., 25(1),132-138.
• Brzycki, M. (1993). Strength testing—predicting a one-rep max from reps-to-fatigue. J Phys Edu Rec Dance, 64(1), 88–90.
• Feigenbaum, M.S., & Pollock, M.L. (1999). Prescription of resistance training for health and disease. Med Sci Sports Exerc., 31(1), 38-45 https://doi.org/10.1097/00005768-199901000-00008
• Fernandes, J.F.T., Dingley, A.F., Garcia-Ramos, A., Perez-Castilla, A., Tufano, J.J., & Twist, C. (2021). Prediction of one repetition maximum using reference minimum velocity threshold values in young and middle-aged resistance-trained males. Behav Sci., 11(5), 1-13. Article 71. https://doi.org/10.3390/bs11050071
• González-Badillo, J.J., & Sánchez-Medina, L. (2010). Movement velocity as a measure of loading intensity in resistance training. Int J Sports Med., 31(5), 347–352. https://doi.org/10.1055/s-0030-1248333
• González-Badillo, J.J., Marques, M.C., & Sánchez-Medina, L. (2011). The importance of movement velocity as a measure to control resistance training intensity. J Human Kinetics, Special Issue, 29A, 15–19. https://doi.org/10.2478/v10078-011-0053-6
• Grgic, A., Lazinica, B., Schoenfeld, C., & Pedisic, Z. (2020). Test–retest reliability of the one-repetition maximum (1RM) strength assessment: A Systematic review. Sports Med.,6(31), 2-16. https://doi.org/10.1186/s40798-020-00260-z
• Hackett, D.A., Cobley, S.P., Davies, T.B., Michael, S.W., & Halaki, M. (2017). Accuracy in estimating repetitions to failure during resistance Exercise. Journal of Strength and Conditioning Research, 31(8), 2162-2168. https://doi.org/10.1519/JSC.0000000000001683
• Hackett, D.A., Johnson, N.A., Halaki, M., & Chow, C.M. (2018). A novel scale to assess resistance-exercise effort. J Sports Sci., 30(13), 1405–1413. https://doi.org/10.1080/02640414.2012.710757
• Helms, E.R., Cronin, J., Storey, A., & Zourdos, M.C. (2006). Application of the repetitions in reserve-based rating of perceived exertion scale for resistance training. Strength and Conditioning Journal, 38(4), 42–49. https://doi.org/10.1519/SSC.0000000000000218
• Hughes, L.J., Banyard, H.G., Dempsey, A.R., & Scott, B.R. (2019). Using a load-velocity relationship to predict one repetition maximum in free-weight exercise: A comparison of the different methods. Journal of Strength and Conditioning Research, 33(9), 2409-2419. https://doi.org/10.1519/JSC.0000000000002550
• Izquierdo, M., González-Badillo, J.J., Häkkinen, K., Ibáñez, J., Kraemer, W.J., & Altadill, A. (2006). Effect of loading on unintentional lifting velocity declines during single sets of repetitions to failure during upper and lower extremity muscle actions. Int J Sports Med., 27(9), 718–724. https://doi.org/10.1055/s-2005-872825
• Jeffrey, A. (2002). The role of resistance exercise in weight loss. Strength and Conditioning Journal, 24(1), 65-9.
• Jidovtseff, B., Harris, N.K., Crielaard, J.M., & Cronin, J.B. (2011). Using the load-velocity relationship for 1RM prediction. Journal of Strength and Conditioning Research, 25(1), 267-70. https://doi.org/10.1519/JSC.0b013e3181b62c5f
• Jovanović, M., & Flanagan., E.P. (2014). Researched applications of velocity based strength training. J Australian Strength Cond., 21(2), 256-264.
• Kraemer, W.J., & Ratamess, N.A. (2004). Fundamentals of resistance training: Progression and exercise prescription. Med Sci Sports Exerc., 36(4), 674–688. https://doi.org/10.1249/01.mss.0000121945.36635.61
• Kraemer, W.J., Ratamess, N.A., Fry, A.C., & French, D.N. (2006). Strength training: Development and evaluation of methodology. In P.J. Maud and C. Foster, Physiological assessment of human fitness. Human Kinetics.
• Kravitz, L., Akalan, C., Nowicki, K., & Kinzey, S.J. (2013). Prediction of 1 repetition maximum in high-school power lifters. Journal of Strength and Conditioning Research, 17(1), 167-172. https://doi.org/10.1519/1533-4287(2003)017<0167:pormih>2.0.co;2
• Loturco, I., Kobal, R., Moraes, J.E., Kitamura, K., Cal Abad, C.C., Pereira, L.A., & Nakamura, F.Y. (2017). Predicting the maximum dynamic strength in bench press: The high precision of the bar velocity approach. Journal of Strength and Conditioning Research, 31(4), 1127–1131. https://doi.org/10.1519/JSC.0000000000001670
• Mangine, G.T, Hoffman, A., Gonzalez, B., Townsend, C., Wells, D., & Jajtner, G. (2015). The effect of training volume and intensity on improvements in muscular strength and size in resistance-trained men. Physiological Reports, 3(8), 1-17. https://doi.org/10.14814/phy2.12472
• Mann, J.B., Thyfault, J.P., Ivey, P.A., & Sayers, S.P. (2010). The effect of autoregulatory progressive resistance exercise vs. linear periodization on strength improvement in college athletes. Journal of Strength and Conditioning Research, 24(7), 1718-23. https://doi.org/ 10.1519/JSC.0b013e3181def4a6
• Patel, H., Alkhawam, H., Madanieh, R., Shah, N., Kosmas, C.E., & Vittorio, T.J. (2017). Aerobic vs anaerobic exercise training effects on the cardiovascular system. World J Cardio., 9(2), 134. https://doi.org/10.4330/wjc.v9.i2.134
• Reynolds, J.M., Gordon, T.J., & Robergs, R.A. (2006). Prediction of one repetition maximum strength from multiple repetition maximum testing and anthropometry. Journal of Strength and Conditioning Research, 20(3), 584-92. https://doi.org/ 10.4330/wjc.v9.i2.134
• Sánchez-Medina, L., González-Badillo, J.J., Pérez, C.E., & Pallarés, J.G. (2018). Velocity- and power-load relationships of the bench pull vs Bench press exercises. Int J Sports Med., 35(3), 209–216. https://doi.org/10.1055/s-0033-1351252
• Weakley, J., Mann, B., Banyard, H., McLaren, S., Scott, T., & Garcia-Ramos, A. (2021). Velocity-based training: From theory to application. Strength and Conditioning Journal, 43(2), 31–49. https://doi.org/10.1519/SSC.0000000000000560