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Relationships among peak power output, peak bar velocity, and mechanomyographic amplitude during the free-weight bench press exercise.
J Sports Sci. 2010 Oct; 28(12):1309-17.JS

Abstract

The purpose of this study was to examine the relationships among mechanomyographic (MMG) amplitude, power output, and bar velocity during the free-weight bench press exercise. Twenty-one resistance-trained men [one-repetition maximum (1-RM) bench press = 125.4+18.4 kg] performed bench press muscle actions as explosively as possible from 10% to 90% of the 1-RM while peak power output and peak bar velocity were assessed with a TENDO Weightlifting Analyzer. During each muscle action, surface MMG signals were detected from the right and left pectoralis major and triceps brachii, and the concentric portion of the range of motion was selected for analysis. Results indicated that power output increased from 10% to 50% 1-RM, followed by decreases from 50% to 90% 1-RM, but MMG amplitude for each of the muscles increased from 10 to 80% 1-RM. The results of this study indicate that during the free-weight bench press exercise, MMG amplitude was not related to power output, but was inversely related to bar velocity and directly related to the external load being lifted. In future research, coaches and sport scientists may be able to estimate force/torque production from individual muscles during multi-joint, dynamic constant external resistance muscle actions.

Authors+Show Affiliations

Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma 73019-6081, USA. mattstock@ou.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article

Language

eng

PubMed ID

20845222

Citation

Stock, Matt S., et al. "Relationships Among Peak Power Output, Peak Bar Velocity, and Mechanomyographic Amplitude During the Free-weight Bench Press Exercise." Journal of Sports Sciences, vol. 28, no. 12, 2010, pp. 1309-17.
Stock MS, Beck TW, Defreitas JM, et al. Relationships among peak power output, peak bar velocity, and mechanomyographic amplitude during the free-weight bench press exercise. J Sports Sci. 2010;28(12):1309-17.
Stock, M. S., Beck, T. W., Defreitas, J. M., & Dillon, M. A. (2010). Relationships among peak power output, peak bar velocity, and mechanomyographic amplitude during the free-weight bench press exercise. Journal of Sports Sciences, 28(12), 1309-17. https://doi.org/10.1080/02640414.2010.499440
Stock MS, et al. Relationships Among Peak Power Output, Peak Bar Velocity, and Mechanomyographic Amplitude During the Free-weight Bench Press Exercise. J Sports Sci. 2010;28(12):1309-17. PubMed PMID: 20845222.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationships among peak power output, peak bar velocity, and mechanomyographic amplitude during the free-weight bench press exercise. AU - Stock,Matt S, AU - Beck,Travis W, AU - Defreitas,Jason M, AU - Dillon,Michael A, PY - 2010/9/17/entrez PY - 2010/9/17/pubmed PY - 2011/6/10/medline SP - 1309 EP - 17 JF - Journal of sports sciences JO - J Sports Sci VL - 28 IS - 12 N2 - The purpose of this study was to examine the relationships among mechanomyographic (MMG) amplitude, power output, and bar velocity during the free-weight bench press exercise. Twenty-one resistance-trained men [one-repetition maximum (1-RM) bench press = 125.4+18.4 kg] performed bench press muscle actions as explosively as possible from 10% to 90% of the 1-RM while peak power output and peak bar velocity were assessed with a TENDO Weightlifting Analyzer. During each muscle action, surface MMG signals were detected from the right and left pectoralis major and triceps brachii, and the concentric portion of the range of motion was selected for analysis. Results indicated that power output increased from 10% to 50% 1-RM, followed by decreases from 50% to 90% 1-RM, but MMG amplitude for each of the muscles increased from 10 to 80% 1-RM. The results of this study indicate that during the free-weight bench press exercise, MMG amplitude was not related to power output, but was inversely related to bar velocity and directly related to the external load being lifted. In future research, coaches and sport scientists may be able to estimate force/torque production from individual muscles during multi-joint, dynamic constant external resistance muscle actions. SN - 1466-447X UR - https://www.unboundmedicine.com/medline/citation/20845222/Relationships_among_peak_power_output_peak_bar_velocity_and_mechanomyographic_amplitude_during_the_free_weight_bench_press_exercise_ L2 - https://www.tandfonline.com/doi/full/10.1080/02640414.2010.499440 DB - PRIME DP - Unbound Medicine ER -