Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest
Introduction: This study examined the effects of blood flow restriction (BFR) and reperfusion on the mechanical properties of the rectus femoris muscle at rest (frequency and stiffness).Methods: Fourteen trained men (body weight = 81.0 ± 10.3 kg; BMI = 25 ± 3.0 m/kg2; height = 181 ± 4 cm; training e...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-08-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2023.1244376/full |
| _version_ | 1797741502818942976 |
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| author | Jakub Jarosz Dawid Gaweł Michal Krzysztofik Adam Zając Athanasios Tsoukos Gregory C. Bogdanis Michal Wilk |
| author_facet | Jakub Jarosz Dawid Gaweł Michal Krzysztofik Adam Zając Athanasios Tsoukos Gregory C. Bogdanis Michal Wilk |
| author_sort | Jakub Jarosz |
| collection | DOAJ |
| description | Introduction: This study examined the effects of blood flow restriction (BFR) and reperfusion on the mechanical properties of the rectus femoris muscle at rest (frequency and stiffness).Methods: Fourteen trained men (body weight = 81.0 ± 10.3 kg; BMI = 25 ± 3.0 m/kg2; height = 181 ± 4 cm; training experience = 6.0 ± 2.2 years) participated in an experimental session involving their dominant (BFR) and non-dominant leg (control). Muscle mechanical properties were measured using Myoton’s accelerometer at the midpoint of the rectus femoris muscle at five time points. In the BFR leg, an 80% arterial occlusion pressure was applied by a cuff for 5 min. No cuff was applied in the control leg. Femoral Myoton measurements were taken from both legs 2 and 4 min after the start of BRF as well as 30 s and 2 min after the end of the occlusion period.Results: The two-way ANOVA revealed a statistically significant interaction effect for stiffness and frequency (p < 0.001; η2 > 0.67). The post hoc analysis showed that both stiffness and frequency increased during BFR compared with rest and then dropped to the resting levels post BFR period. Also, stiffness and frequency were higher than control only during the BFR period, and similar during rest and post BFR.Conclusion: These results indicate that the application of BFR at rest leads to significant changes in mechanical properties of the rectus femoris muscle. |
| first_indexed | 2024-03-12T14:27:28Z |
| format | Article |
| id | doaj.art-89c4608b4f7a41fb959f1e1ad4e9484d |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-03-12T14:27:28Z |
| publishDate | 2023-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-89c4608b4f7a41fb959f1e1ad4e9484d2023-08-18T02:07:12ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2023-08-011410.3389/fphys.2023.12443761244376Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at restJakub Jarosz0Dawid Gaweł1Michal Krzysztofik2Adam Zając3Athanasios Tsoukos4Gregory C. Bogdanis5Michal Wilk6Institute 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, PolandInstitute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandSchool of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceSchool of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceInstitute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, PolandIntroduction: This study examined the effects of blood flow restriction (BFR) and reperfusion on the mechanical properties of the rectus femoris muscle at rest (frequency and stiffness).Methods: Fourteen trained men (body weight = 81.0 ± 10.3 kg; BMI = 25 ± 3.0 m/kg2; height = 181 ± 4 cm; training experience = 6.0 ± 2.2 years) participated in an experimental session involving their dominant (BFR) and non-dominant leg (control). Muscle mechanical properties were measured using Myoton’s accelerometer at the midpoint of the rectus femoris muscle at five time points. In the BFR leg, an 80% arterial occlusion pressure was applied by a cuff for 5 min. No cuff was applied in the control leg. Femoral Myoton measurements were taken from both legs 2 and 4 min after the start of BRF as well as 30 s and 2 min after the end of the occlusion period.Results: The two-way ANOVA revealed a statistically significant interaction effect for stiffness and frequency (p < 0.001; η2 > 0.67). The post hoc analysis showed that both stiffness and frequency increased during BFR compared with rest and then dropped to the resting levels post BFR period. Also, stiffness and frequency were higher than control only during the BFR period, and similar during rest and post BFR.Conclusion: These results indicate that the application of BFR at rest leads to significant changes in mechanical properties of the rectus femoris muscle.https://www.frontiersin.org/articles/10.3389/fphys.2023.1244376/fullischemiareperfusionmyotonometric assessmentmyotonometerocclusionstiffness |
| spellingShingle | Jakub Jarosz Dawid Gaweł Michal Krzysztofik Adam Zając Athanasios Tsoukos Gregory C. Bogdanis Michal Wilk Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest Frontiers in Physiology ischemia reperfusion myotonometric assessment myotonometer occlusion stiffness |
| title | Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| title_full | Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| title_fullStr | Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| title_full_unstemmed | Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| title_short | Effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| title_sort | effects of blood flow restriction on mechanical properties of the rectus femoris muscle at rest |
| topic | ischemia reperfusion myotonometric assessment myotonometer occlusion stiffness |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2023.1244376/full |
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