Tags

Type your tag names separated by a space and hit enter

The influence of isometric preload on power expressed during bench press in strength-trained men.
Eur J Sport Sci. 2017 Mar; 17(2):195-199.EJ

Abstract

The purpose of this study was to compare the power expressed during the bench press exercise in resistance-trained men following different pre-activation conditions. Twenty-two trained men (age 24.1 ± 1.7 years, height 178.6 ± 6.1 cm, body mass 81.1 ± 10.6 kg) completed a maximal effort bench press (1-RM) test (100.0 kg ± 8.1 kg). In a subsequent assessment, each participant performed concentric bench press movements with loads of 20%, 30%, 40% and 50% of their 1-RM preceded by either a concentric contraction (CC), a low isometric preload (LIP; 70% 1-RM) or a high isometric preload (HIP; 100% 1-RM) conditions. All movements were performed in a Smith machine with a settable quick-release device. Participants performed all three conditions in randomized fashion. Results indicated that power outputs during the bench press exercise following HIP were significantly (p < 0.05) greater than CC at 20% 1-RM (+9%), 30% 1-RM (+16%) and 40% 1-RM (+14%), and LIP at 20% 1-RM (+4%), 30% 1-RM (+20%) and 40% 1-RM (+15%). No differences were found between conditions at 50% 1-RM. Area under the force-power curve with HIP was greater (p < 0.05) than with CC and LIP. In conclusion, results of this study indicate that the use of a HIP (100% 1-RM) in trained participants results in significantly greater power output during the concentric phase of a multi-joint exercise when compared to standard concentric movement.

Authors+Show Affiliations

a Sport and Exercise Science, University of Central Florida , Orlando , FL , USA. b Department of Biomedical and Neuromotor Sciences , University of Bologna , Bologna , Italy.a Sport and Exercise Science, University of Central Florida , Orlando , FL , USA.a Sport and Exercise Science, University of Central Florida , Orlando , FL , USA.a Sport and Exercise Science, University of Central Florida , Orlando , FL , USA.b Department of Biomedical and Neuromotor Sciences , University of Bologna , Bologna , Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27557279

Citation

Bartolomei, Sandro, et al. "The Influence of Isometric Preload On Power Expressed During Bench Press in Strength-trained Men." European Journal of Sport Science, vol. 17, no. 2, 2017, pp. 195-199.
Bartolomei S, Fukuda DH, Hoffman JR, et al. The influence of isometric preload on power expressed during bench press in strength-trained men. Eur J Sport Sci. 2017;17(2):195-199.
Bartolomei, S., Fukuda, D. H., Hoffman, J. R., Stout, J. R., & Merni, F. (2017). The influence of isometric preload on power expressed during bench press in strength-trained men. European Journal of Sport Science, 17(2), 195-199. https://doi.org/10.1080/17461391.2016.1222000
Bartolomei S, et al. The Influence of Isometric Preload On Power Expressed During Bench Press in Strength-trained Men. Eur J Sport Sci. 2017;17(2):195-199. PubMed PMID: 27557279.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The influence of isometric preload on power expressed during bench press in strength-trained men. AU - Bartolomei,Sandro, AU - Fukuda,David H, AU - Hoffman,Jay R, AU - Stout,Jeffrey R, AU - Merni,Franco, Y1 - 2016/08/24/ PY - 2016/8/25/pubmed PY - 2017/2/15/medline PY - 2016/8/25/entrez KW - Exercise KW - performance KW - strength SP - 195 EP - 199 JF - European journal of sport science JO - Eur J Sport Sci VL - 17 IS - 2 N2 - The purpose of this study was to compare the power expressed during the bench press exercise in resistance-trained men following different pre-activation conditions. Twenty-two trained men (age 24.1 ± 1.7 years, height 178.6 ± 6.1 cm, body mass 81.1 ± 10.6 kg) completed a maximal effort bench press (1-RM) test (100.0 kg ± 8.1 kg). In a subsequent assessment, each participant performed concentric bench press movements with loads of 20%, 30%, 40% and 50% of their 1-RM preceded by either a concentric contraction (CC), a low isometric preload (LIP; 70% 1-RM) or a high isometric preload (HIP; 100% 1-RM) conditions. All movements were performed in a Smith machine with a settable quick-release device. Participants performed all three conditions in randomized fashion. Results indicated that power outputs during the bench press exercise following HIP were significantly (p < 0.05) greater than CC at 20% 1-RM (+9%), 30% 1-RM (+16%) and 40% 1-RM (+14%), and LIP at 20% 1-RM (+4%), 30% 1-RM (+20%) and 40% 1-RM (+15%). No differences were found between conditions at 50% 1-RM. Area under the force-power curve with HIP was greater (p < 0.05) than with CC and LIP. In conclusion, results of this study indicate that the use of a HIP (100% 1-RM) in trained participants results in significantly greater power output during the concentric phase of a multi-joint exercise when compared to standard concentric movement. SN - 1536-7290 UR - https://www.unboundmedicine.com/medline/citation/27557279/The_influence_of_isometric_preload_on_power_expressed_during_bench_press_in_strength_trained_men_ DB - PRIME DP - Unbound Medicine ER -