Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs
This study evaluated the effects of ischemic conditioning on power output and bar velocity in the bench press exercise. Ten healthy males (age: 25 ± 2 years; body mass: 92 ± 8 kg; bench press one repetition maximum −1RM: 145 ± 13 kg), took part in two experimental sessions (with and without ischemia...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-02-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2021.626915/full |
| _version_ | 1818944229663047680 |
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| author | Michal Wilk Michal Krzysztofik Jakub Jarosz Pawel Krol Katarzyna Leznicka Adam Zajac Petr Stastny Gregory C. Bogdanis |
| author_facet | Michal Wilk Michal Krzysztofik Jakub Jarosz Pawel Krol Katarzyna Leznicka Adam Zajac Petr Stastny Gregory C. Bogdanis |
| author_sort | Michal Wilk |
| collection | DOAJ |
| description | This study evaluated the effects of ischemic conditioning on power output and bar velocity in the bench press exercise. Ten healthy males (age: 25 ± 2 years; body mass: 92 ± 8 kg; bench press one repetition maximum −1RM: 145 ± 13 kg), took part in two experimental sessions (with and without ischemia), 1 week apart in random and counterbalanced order. In the ischemic condition, cuffs placed around the upper part of the arms were inflated to 80% of arterial occlusion pressure before each set, while in the control condition there was no blood flow restriction. The exercise protocol included 5 sets of three repetitions each, against a resistance equal to 60% 1RM, with 5 min recovery intervals between sets. There was a main effect of condition for mean power output (MP) and mean bar velocity (MV) (p = 0.01), with overall MP being higher in ischemia than in control by 5.6 ± 4.1% (mean ± 90% compatibility limits), a standardized effect size (ES) of 0.51. Overall MV was also higher by 5.5 ± 4.0%, ES = 0.63. Peak power output (PP) and peak bar velocity (PV) were similar in set 1 of the control and ischemia condition (1039 ± 105 vs. 1054 ± 82 W; 684 ± 74 vs. 696 ± 53 W; 1.09 ± 0.07 vs. 1.12 ± 0.09 m/s; 0.81 ± 0.05 vs. 0.82 ± 0.05 m/s, p = 0.67 to 0.99, mean ± standard deviation). However, from set 3 onward (p = 0.03 to 0.001), PP and PV were higher in ischemia compared with control, with the highest difference observed in set 5 (10.9 ± 5.9%, ES = 0.73 for PP and 8.6 ± 4.6%; ES = 0.89 for PV). These results indicate that ischemia used before each set of the bench press exercise increases power output and bar velocity and this may be used as performance-enhancing stimulus during explosive resistance training. |
| first_indexed | 2024-12-20T07:39:54Z |
| format | Article |
| id | doaj.art-8732e438712d4104bc2c4d7f0edca776 |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-12-20T07:39:54Z |
| publishDate | 2021-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-8732e438712d4104bc2c4d7f0edca7762022-12-21T19:48:10ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2021-02-011210.3389/fphys.2021.626915626915Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper LimbsMichal Wilk0Michal Krzysztofik1Jakub Jarosz2Pawel Krol3Katarzyna Leznicka4Adam Zajac5Petr Stastny6Gregory C. Bogdanis7Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandInstitute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandInstitute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandCollege of Medical Sciences, Institute of Physical Culture Studies, University of Rzeszów, Rzeszów, PolandFaculty of Physical Education, Gdansk University of Physical Education and Sport, Gdańsk, PolandInstitute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandFaculty of Physical Education and Sport, Department of Sport Games, Charles University, Prague, CzechiaSchool of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceThis study evaluated the effects of ischemic conditioning on power output and bar velocity in the bench press exercise. Ten healthy males (age: 25 ± 2 years; body mass: 92 ± 8 kg; bench press one repetition maximum −1RM: 145 ± 13 kg), took part in two experimental sessions (with and without ischemia), 1 week apart in random and counterbalanced order. In the ischemic condition, cuffs placed around the upper part of the arms were inflated to 80% of arterial occlusion pressure before each set, while in the control condition there was no blood flow restriction. The exercise protocol included 5 sets of three repetitions each, against a resistance equal to 60% 1RM, with 5 min recovery intervals between sets. There was a main effect of condition for mean power output (MP) and mean bar velocity (MV) (p = 0.01), with overall MP being higher in ischemia than in control by 5.6 ± 4.1% (mean ± 90% compatibility limits), a standardized effect size (ES) of 0.51. Overall MV was also higher by 5.5 ± 4.0%, ES = 0.63. Peak power output (PP) and peak bar velocity (PV) were similar in set 1 of the control and ischemia condition (1039 ± 105 vs. 1054 ± 82 W; 684 ± 74 vs. 696 ± 53 W; 1.09 ± 0.07 vs. 1.12 ± 0.09 m/s; 0.81 ± 0.05 vs. 0.82 ± 0.05 m/s, p = 0.67 to 0.99, mean ± standard deviation). However, from set 3 onward (p = 0.03 to 0.001), PP and PV were higher in ischemia compared with control, with the highest difference observed in set 5 (10.9 ± 5.9%, ES = 0.73 for PP and 8.6 ± 4.6%; ES = 0.89 for PV). These results indicate that ischemia used before each set of the bench press exercise increases power output and bar velocity and this may be used as performance-enhancing stimulus during explosive resistance training.https://www.frontiersin.org/articles/10.3389/fphys.2021.626915/fullblood flow restrictionocclusionresistance exercisebench presssport performance |
| spellingShingle | Michal Wilk Michal Krzysztofik Jakub Jarosz Pawel Krol Katarzyna Leznicka Adam Zajac Petr Stastny Gregory C. Bogdanis Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs Frontiers in Physiology blood flow restriction occlusion resistance exercise bench press sport performance |
| title | Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs |
| title_full | Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs |
| title_fullStr | Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs |
| title_full_unstemmed | Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs |
| title_short | Impact of Ischemic Intra-Conditioning on Power Output and Bar Velocity of the Upper Limbs |
| title_sort | impact of ischemic intra conditioning on power output and bar velocity of the upper limbs |
| topic | blood flow restriction occlusion resistance exercise bench press sport performance |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2021.626915/full |
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