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Effect of potentiating exercise volume on vertical jump parameters in recreationally trained men.
J Strength Cond Res. 2009 Aug; 23(5):1465-9.JS

Abstract

High-force activities have demonstrated postactivation potentiation (PAP) and may enhance performance in athletes; however, the efficacy of high-force activities to generate PAP in recreationally trained men remains unclear. The purpose of this study was to investigate the effect of high-force back squat volume on vertical jump (VJ) height, ground reaction force (GRF), impulse (IMP), and takeoff velocity (TOV) in recreationally trained men. Sixteen recreationally trained men (age 24.56 +/- 2.10 years, height 174.53 +/- 8.54 cm, mass 84.59 +/- 14.75 kg, and 1 repetition maximum [1RM] back squat 124.71 +/- 17.58 kg) with at least 1 year of back squat experience completed 5 testing sessions separated by a minimum of 72 hours' rest. On session 1, subjects completed VJ testing without a potentiating exercise intervention (control condition) in a test-retest fashion (3 VJs, 5 minutes seated rest, and 3 more VJs) and performed 1RM back squat testing. Subjects completed the subsequent 4 testing sessions in a test-retest fashion (3 VJs, experimental condition, 5 minutes seated rest, and 3 more VJs) in random order. The 4 experimental conditions required subjects to perform the back squat using a load of 85% 1RM with volumes of 1 x 2, 1 x 3, 1 x 4, or 1 x 5. Analysis of variance revealed no significant (p > 0.05) condition by time interactions for any dependent variable; however, there were significant (p < 0.05) main effects for time for GRF (pre 2,123.74 +/- 422.86 N, > post 2,094.53 +/- 390.99 N) and IMP (pre 210.88 +/- 100.97 Nxs, > post 204.63 +/- 106.14 Nxs) but not for VJ or TOV. These results suggest that 85% 1RM back squat volume assignments do not produce a VJ potentiation response in recreationally trained men.

Authors+Show Affiliations

Department of Kinesiology, Human Performance Laboratory, California State University, Fullerton, California 92831, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19593219

Citation

Khamoui, Andy V., et al. "Effect of Potentiating Exercise Volume On Vertical Jump Parameters in Recreationally Trained Men." Journal of Strength and Conditioning Research, vol. 23, no. 5, 2009, pp. 1465-9.
Khamoui AV, Brown LE, Coburn JW, et al. Effect of potentiating exercise volume on vertical jump parameters in recreationally trained men. J Strength Cond Res. 2009;23(5):1465-9.
Khamoui, A. V., Brown, L. E., Coburn, J. W., Judelson, D. A., Uribe, B. P., Nguyen, D., Tran, T., Eurich, A. D., & Noffal, G. J. (2009). Effect of potentiating exercise volume on vertical jump parameters in recreationally trained men. Journal of Strength and Conditioning Research, 23(5), 1465-9. https://doi.org/10.1519/JSC.0b013e3181a5bcdd
Khamoui AV, et al. Effect of Potentiating Exercise Volume On Vertical Jump Parameters in Recreationally Trained Men. J Strength Cond Res. 2009;23(5):1465-9. PubMed PMID: 19593219.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of potentiating exercise volume on vertical jump parameters in recreationally trained men. AU - Khamoui,Andy V, AU - Brown,Lee E, AU - Coburn,Jared W, AU - Judelson,Daniel A, AU - Uribe,Brandon P, AU - Nguyen,Diamond, AU - Tran,Tai, AU - Eurich,Alea D, AU - Noffal,Guillermo J, PY - 2009/7/14/entrez PY - 2009/7/14/pubmed PY - 2009/11/3/medline SP - 1465 EP - 9 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 23 IS - 5 N2 - High-force activities have demonstrated postactivation potentiation (PAP) and may enhance performance in athletes; however, the efficacy of high-force activities to generate PAP in recreationally trained men remains unclear. The purpose of this study was to investigate the effect of high-force back squat volume on vertical jump (VJ) height, ground reaction force (GRF), impulse (IMP), and takeoff velocity (TOV) in recreationally trained men. Sixteen recreationally trained men (age 24.56 +/- 2.10 years, height 174.53 +/- 8.54 cm, mass 84.59 +/- 14.75 kg, and 1 repetition maximum [1RM] back squat 124.71 +/- 17.58 kg) with at least 1 year of back squat experience completed 5 testing sessions separated by a minimum of 72 hours' rest. On session 1, subjects completed VJ testing without a potentiating exercise intervention (control condition) in a test-retest fashion (3 VJs, 5 minutes seated rest, and 3 more VJs) and performed 1RM back squat testing. Subjects completed the subsequent 4 testing sessions in a test-retest fashion (3 VJs, experimental condition, 5 minutes seated rest, and 3 more VJs) in random order. The 4 experimental conditions required subjects to perform the back squat using a load of 85% 1RM with volumes of 1 x 2, 1 x 3, 1 x 4, or 1 x 5. Analysis of variance revealed no significant (p > 0.05) condition by time interactions for any dependent variable; however, there were significant (p < 0.05) main effects for time for GRF (pre 2,123.74 +/- 422.86 N, > post 2,094.53 +/- 390.99 N) and IMP (pre 210.88 +/- 100.97 Nxs, > post 204.63 +/- 106.14 Nxs) but not for VJ or TOV. These results suggest that 85% 1RM back squat volume assignments do not produce a VJ potentiation response in recreationally trained men. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/19593219/Effect_of_potentiating_exercise_volume_on_vertical_jump_parameters_in_recreationally_trained_men_ L2 - https://doi.org/10.1519/JSC.0b013e3181a5bcdd DB - PRIME DP - Unbound Medicine ER -