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Is the occurrence of the sticking region the result of diminishing potentiation in bench press?
J Sports Sci. 2012; 30(6):591-9.JS

Abstract

In this study we investigated if the occurrence of the sticking region was a result of diminishing potentiation (coinciding delayed muscle activation) or the result of a mechanically poor region in which the muscles can produce less force. A regular one-repetition maximum (1RM) free-weight bench press was compared with isometric bench presses performed at 12 different positions. A lower force at the sticking region compared to the other regions in the isometric bench presses would confirm the mechanically-poor-position hypothesis. Twelve resistance-trained males (age 21.7 ± 1.3 years, mass 78 ± 5.8 kg, height 1.81 ± 0.05 m) were tested in 1RM and in isometric contractions in bench press in 12 different positions, indicated by the vertical distance between barbell and sternum, covering the whole range of motion during the concentric phase. Barbell kinematics and muscle activity were registered. In both types of executions a region of lower force output was observed, which supports the mechanically-poor-position hypothesis. Electromyographic activity of four muscles showed the same pattern in the isometric and 1RM attempts. It was concluded that diminishing effect potentiation could not explain the existence of the sticking region.

Authors+Show Affiliations

Research Centre for Sport, Health and Human Development, Vila Real, Portugal. roland.tillaar@svt.ntnu.noNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

22304656

Citation

Tillaar, Roland van den, et al. "Is the Occurrence of the Sticking Region the Result of Diminishing Potentiation in Bench Press?" Journal of Sports Sciences, vol. 30, no. 6, 2012, pp. 591-9.
Tillaar Rv, Saeterbakken AH, Ettema G. Is the occurrence of the sticking region the result of diminishing potentiation in bench press? J Sports Sci. 2012;30(6):591-9.
Tillaar, R. v., Saeterbakken, A. H., & Ettema, G. (2012). Is the occurrence of the sticking region the result of diminishing potentiation in bench press? Journal of Sports Sciences, 30(6), 591-9. https://doi.org/10.1080/02640414.2012.658844
Tillaar Rv, Saeterbakken AH, Ettema G. Is the Occurrence of the Sticking Region the Result of Diminishing Potentiation in Bench Press. J Sports Sci. 2012;30(6):591-9. PubMed PMID: 22304656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Is the occurrence of the sticking region the result of diminishing potentiation in bench press? AU - Tillaar,Roland van den, AU - Saeterbakken,Atle Hole, AU - Ettema,Gertjan, Y1 - 2012/02/03/ PY - 2012/2/7/entrez PY - 2012/2/7/pubmed PY - 2012/7/28/medline SP - 591 EP - 9 JF - Journal of sports sciences JO - J Sports Sci VL - 30 IS - 6 N2 - In this study we investigated if the occurrence of the sticking region was a result of diminishing potentiation (coinciding delayed muscle activation) or the result of a mechanically poor region in which the muscles can produce less force. A regular one-repetition maximum (1RM) free-weight bench press was compared with isometric bench presses performed at 12 different positions. A lower force at the sticking region compared to the other regions in the isometric bench presses would confirm the mechanically-poor-position hypothesis. Twelve resistance-trained males (age 21.7 ± 1.3 years, mass 78 ± 5.8 kg, height 1.81 ± 0.05 m) were tested in 1RM and in isometric contractions in bench press in 12 different positions, indicated by the vertical distance between barbell and sternum, covering the whole range of motion during the concentric phase. Barbell kinematics and muscle activity were registered. In both types of executions a region of lower force output was observed, which supports the mechanically-poor-position hypothesis. Electromyographic activity of four muscles showed the same pattern in the isometric and 1RM attempts. It was concluded that diminishing effect potentiation could not explain the existence of the sticking region. SN - 1466-447X UR - https://www.unboundmedicine.com/medline/citation/22304656/Is_the_occurrence_of_the_sticking_region_the_result_of_diminishing_potentiation_in_bench_press L2 - https://www.tandfonline.com/doi/full/10.1080/02640414.2012.658844 DB - PRIME DP - Unbound Medicine ER -