The Acute Effects of Velocity Loss During Half Squat Exercise on Jump Performance

Abstract

The velocity loss (VL) approach during squat exercise may increase the post-activation potentiation enhancement effect on squat jump performance. If this method succeeds, then different conditions of VL should be researched before its implementation to the field. This study hypothesized that squat jump performance would be increased after different volumed VL conditions during half-squat exercise. Eighteen resistance-trained men (mean [M] ± standard deviation [SD]; age: 24.00±3.53 years; body mass: 78.37±5.53 kg; height: 179.35±7.04 cm; one-repetition maximum (1RM) half squat: 110.85±11.92 kg) voluntarily performed squat jump under unloaded and four different VL conditions (R6: six repetitions, Ruf: repetitions until failure, VL10: velocity loss thresholds 10%, VL20: velocity loss thresholds 20%) after a set of half-squat exercises at 80% of one-repetition maximum separated by at least 72 hours. The results revealed that subjects demonstrated significantly better squat jump performance in VL10, VL20, and R6 conditions than the unloaded and Ruf conditions (p<0.05). According to these findings, if coaches and sports scientists desire to increase the post-activation potentiation enhancement effect, following heavy resistance training with a VL approach, VL10 and VL20 conditions instead of the traditional repetition method for squat jump performances are recommended.

Keywords

• Fatigue
• PAP
• PAPE
• Velocity loss

References

1. Atalag, O., Kurt, C., Huebner, A., Galimba, M., & Uson, J. K. (2021). Is complex training superior to drop jumps or back squats for eliciting a post activation potentiation enhancement response? Journal of Physical Education and Sport ® (JPES), 21, 2228–2236. https://doi.org/10.7752/jpes.2021.s3283
2. Balsalobre-Fernández, C., Kuzdub, M., Poveda-Ortiz, P., & Campo-Vecino, J. D. (2016). Validity and Reliability of the PUSH Wearable Device to Measure Movement Velocity During the Back Squat Exercise. Journal of Strength and Conditioning Research, 30(7), 1968–1974. https://doi.org/10.1519/JSC.0000000000001284
3. Bauer, P., Sansone, P., Mitter, B., Makivic, B., Seitz, L. B., & Tschan, H. (2019). Acute Effects of Back Squats on Countermovement Jump Performance Across Multiple Sets of a Contrast Training Protocol in Resistance-Trained Men. Journal of Strength and Conditioning Research, 33(4), 995–1000. https://doi.org/10.1519/JSC.0000000000002422
4. Beato, M., Stiff, A., & Coratella, G. (2021). Effects of Postactivation Potentiation After an Eccentric Overload Bout on Countermovement Jump and Lower-Limb Muscle Strength. Journal of Strength and Conditioning Research, 35(7), 1825–1832. https://doi.org/10.1519/JSC.0000000000003005
5. Blazevich, A. J., & Babault, N. (2019). Post-activation Potentiation Versus Post-activation Performance Enhancement in Humans: Historical Perspective, Underlying Mechanisms, and Current Issues. Frontiers in Physiology, 10, 1359. https://doi.org/10.3389/FPHYS.2019.01359/BIBTEX
6. Bogdanis, G. C., Papaspyrou, A., Souglis, A. G., Theos, A., Sotiropoulos, A., & Maridaki, M. (2011). Effects of two different half-squat training programs on fatigue during repeated cycling sprints in soccer players. Journal of Strength and Conditioning Research, 25(7), 1849–1856. https://doi.org/10.1519/JSC.0B013E3181E83A1E
7. Boullosa, D. A., Abreu, L., Beltrame, L. G. N., & Behm, D. G. (2013). The acute effect of different half squat set configurations on jump potentiation. Journal of Strength and Conditioning Research, 27(8), 2059–2066. https://doi.org/10.1519/JSC.0B013E31827DDF15
8. Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences. In Statistical power analysis for the behavioural sciences. Routledge. https://doi.org/10.4324/9780203771587

9. Crewther, B. T., Kilduff, L. P., Cook, C. J., Middleton, M. K., Bunce, P. J., & Yang, G. Z. (2011). The acute potentiating effects of back squats on athlete performance. Journal of Strength and Conditioning Research, 25(12), 3319–3325. https://doi.org/10.1519/JSC.0B013E318215F560
10. Davies, T., Orr, R., Halaki, M., & Hackett, D. (2016). Effect of Training Leading to Repetition Failure on Muscular Strength: A Systematic Review and Meta-Analysis. Sports Medicine (Auckland, N.Z.), 46(4), 487–502. https://doi.org/10.1007/S40279-015-0451-3
11. Dobbs, W. C., Tolusso, D. V., Fedewa, M. V., & Esco, M. R. (2019). Effect of Postactivation Potentiation on Explosive Vertical Jump: A Systematic Review and Meta-Analysis. Journal of Strength and Conditioning Research, 33(7), 2009–2018. https://doi.org/10.1519/JSC.0000000000002750
12. Esformes, J. I., & Bampouras, T. M. (2013). Effect of back squat depth on lower-body postactivation potentiation. Journal of Strength and Conditioning Research, 27(11), 2997–3000. https://doi.org/10.1519/JSC.0B013E31828D4465
13. Evetovich, T. K., Conley, D. S., & McCawley, P. F. (2015). Postactivation potentiation enhances upperand lower-body athletic performance in collegiate male and female athletes. Journal of Strength and Conditioning Research, 29(2), 336–342. https://doi.org/10.1519/JSC.0000000000000728
14. Fukutani, A., Takei, S., Hirata, K., Miyamoto, N., Kanehisa, H., & Kawakami, Y. (2014). Influence of the intensity of squat exercises on the subsequent jump performance. Journal of Strength and Conditioning Research, 28(8), 2236–2243. https://doi.org/10.1519/JSC.0000000000000409
15. Galiano, C., Pareja-Blanco, F., Hidalgo de Mora, J., & Sáez de Villarreal, E. (2020). Low-Velocity Loss Induces Similar Strength Gains to Moderate-Velocity Loss During Resistance Training. Journal of Strength and Conditioning Research, 1. https://doi.org/10.1519/jsc.0000000000003487
16. González-Badillo, J. J., Marques, M. C., & Sánchez-Medina, L. (2011). The Importance of Movement Velocity as a Measure to Control Resistance Training Intensity. Journal of Human Kinetics, 29A(Special Issue), 15. https://doi.org/10.2478/V10078-011-0053-6
17. González-García, J., Morencos, E., Balsalobre-Fernández, C., Cuéllar-Rayo, Á., & Romero-Moraleda, B. (2019). Effects of 7-Week Hip Thrust Versus Back Squat Resistance Training on Performance in Adolescent Female Soccer Players. Sports 2019, Vol. 7, Page 80, 7(4), 80. https://doi.org/10.3390/SPORTS7040080
18. Hughes, L. J., Banyard, H. G., Dempsey, A. R., Peiffer, J. J., & Scott, B. R. (2019). Using Load-Velocity Relationships to Quantify Training-Induced Fatigue. Journal of Strength and Conditioning Research, 33(3), 762–773. https://doi.org/10.1519/JSC.0000000000003007
19. Koklu, Y., Koklu, O., Isikdemir, E., & Alemdaroglu, U. (2022). Effect of Varying Recovery Duration on Postactivation Potentiation of Explosive Jump and Short Sprint in Elite Young Soccer Players. Journal of Strength and Conditioning Research, 36(2), 534–539. https://doi.org/10.1519/JSC.0000000000003435
20. Lowery, R. P., Duncan, N. M., Loenneke, J. P., Sikorski, E. M., Naimo, M. A., Brown, L. E., Wilson, F. G., & Wilson, J. M. (2012). The effects of potentiating stimuli intensity under varying rest periods on vertical jump performance and power. Journal of Strength and Conditioning Research, 26(12), 3320–3325. https://doi.org/10.1519/JSC.0B013E318270FC56
21. Markovic, G., Dizdar, D., Jukic, I., & Cardinale, M. (2004). Reliability and Factorial Validity of Squat and Countermovement Jump Tests. Journal of Strength and Conditioning Research, 18(3), 551–555. https://doi.org/10.1519/00124278-200408000-00028
22. Nibali, M. L., Chapman, D. W., Robergs, R. A., & Drinkwater, E. J. (2015). Considerations for determining the time course of post-activation potentiation. Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquee, Nutrition et Metabolisme, 40(11), 1163–1170. https://doi.org/10.1139/APNM-2015-0175
23. Pareja-Blanco, F., Rodríguez-Rosell, D., Sánchez-Medina, L., Sanchis-Moysi, J., Dorado, C., Mora-Custodio, R., Yáñez-García, J. M., Morales-Alamo, D., Pérez-Suárez, I., Calbet, J. A. L., & González-Badillo, J. J. (2017a). Effects of velocity loss during resistance training on athletic performance, strength gains and muscle adaptations. Scandinavian Journal of Medicine & Science in Sports, 27(7), 724–735. https://doi.org/10.1111/sms.12678
24. Pareja-Blanco, F., Sánchez-Medina, L., Suárez-Arrones, L., & González-Badillo, J. J. (2017b). Effects of Velocity Loss During Resistance Training on Performance in Professional Soccer Players. International Journal of Sports Physiology and Performance, 12(4), 512–519. https://doi.org/10.1123/ijspp.2016-0170
25. Pérez-Castilla, A., García-Ramos, A., Padial, P., Morales-Artacho, A. J., & Feriche, B. (2020). Load-Velocity Relationship in Variations of the Half-Squat Exercise: Influence of Execution Technique. Journal of Strength and Conditioning Research, 34(4), 1024–1031. https://doi.org/10.1519/JSC.0000000000002072
26. Prieske, O., Behrens, M., Chaabene, H., Granacher, U., & Maffiuletti, N. A. (2020). Time to Differentiate Postactivation “Potentiation” from “Performance Enhancement” in the Strength and Conditioning Community. Sports Medicine, 50(9), 1559–1565. https://doi.org/10.1007/S40279-020-01300-0/FIGURES/2
27. Rassier, D. E., & MacIntosh, B. R. (2000). Coexistence of potentiation and fatigue in skeletal muscle. Brazilian Journal of Medical and Biological Research = Revista Brasileira de Pesquisas Medicas e Biologicas, 33(5), 499–508. https://doi.org/10.1590/S0100-879X2000000500003
28. Sale, D. G. (2002). Postactivation potentiation: role in human performance. Exercise and Sport Sciences Reviews, 30(3), 138–143. https://doi.org/10.1097/00003677-200207000-00008
29. Sánchez-Medina, L., & González-Badillo, J. J. (2011). Velocity loss as an indicator of neuromuscular fatigue during resistance training. Medicine and Science in Sports and Exercise, 43(9), 1725–1734. https://doi.org/10.1249/mss.0b013e318213f880
30. Seitz, L. B., & Haff, G. G. (2016). Factors Modulating Post-Activation Potentiation of Jump, Sprint, Throw, and Upper-Body Ballistic Performances: A Systematic Review with Meta-Analysis. Sports Medicine, 46(2), 231–240. https://doi.org/10.1007/S40279-015-0415-7/TABLES/4
31. Sinovas, M. C., Pérez-López, A., Valverde, I. Á., Cerezal, A. B., Ramos-Campo, D. J., Rubio-Arias, J. A., & Cerrato, D. V. (2015). Influence of body composition on vertical jumper performance according with the age and the playing position in football players. Nutricion Hospitalaria, 32(1), 299–307. https://doi.org/10.3305/NH.2015.32.1.8876
32. Tsoukos, A., Brown, L. E., Terzis, G., Veligekas, P., & Bogdanis, G. C. (2021). Potentiation of Bench Press Throw Performance Using a Heavy Load and Velocity-Based Repetition Control. Journal of Strength and Conditioning Research, 35, S72–S79. https://doi.org/10.1519/JSC.0000000000003633
33. Tsoukos, A., Brown, L. E., Veligekas, P., Terzis, G., & Bogdanis, G. C. (2019). Postactivation potentiation of bench press throw performance using velocity-based conditioning protocols with low and moderate loads. Journal of Human Kinetics, 68(1), 81–98. https://doi.org/10.2478/HUKIN-2019-0058
34. van den Tillaar, R., & Ball, N. (2019). Validity and Reliability of Kinematics Measured with PUSH Band vs. Linear Encoder in Bench Press and Push-Ups. Sports, 7(9). https://doi.org/10.3390/SPORTS7090207
35. Weakley, J. J. S., Wilson, K. M., Till, K., Read, D. B., Darrall-Jones, J., Roe, G. A. B., Phibbs, P. J., & Jones, B. (2019). Visual feedback attenuates mean concentric barbell velocity loss and improves motivation, competitiveness, and perceived workload in male adolescent athletes. Journal of Strength and Conditioning Research, 33(9), 2420–2425. https://doi.org/10.1519/JSC.0000000000002133
36. Weakley, J., Ramirez-Lopez, C., McLaren, S., Dalton-Barron, N., Weaving, D., Jones, B., Till, K., & Banyard, H. (2020). The Effects of 10%, 20%, and 30% Velocity Loss Thresholds on Kinetic, Kinematic, and Repetition Characteristics During the Barbell Back Squat. International Journal of Sports Physiology and Performance, 15(2), 180–188. https://doi.org/10.1123/ijspp.2018-1008
37. Yilmaz, N., Alemdaroǧlu, U., Köklü, Y., Türkdoǧan, H., & Aşçi, A. (2021). The effect of a six-week plyometric training performed with different set configurations on explosive performance: Cluster vs. traditional set configurations. Journal of Sports Medicine and Physical Fitness, 61(7), 892–898. https://doi.org/10.23736/S0022-4707.20.11543-3
38. Zimmermann, H. B., Macintosh, B. R., & Dal Pupo, J. (2020). Does postactivation potentiation (PAP) increase voluntary performance? Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquee, Nutrition et Metabolisme, 45(4), 349–356. https://doi.org/10.1139/APNM-2019-0406