| The effect of linear versus undulating combination of traditional strength and blood flow restriction training on strength and serum hormone levels in relation to muscle size in active girls |
| Paper ID : 1743-SSRC-13TH |
| Authors |
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Kasra Miri1, Amin Farzaneh Hesari *2 1Department of Exercise Physiology, Sari Branch, Islamic Azad University, sari, Iran 2Department of Exercise Physiology, Humanity faculty, Sari Azad Islamic University |
| Abstract |
| Introduction: Blood flow restriction strength training has used intensities between 20-50% of 1RM to elicit similar adaptations to high mechanical loading intensities which exceed 80% 1RM. Furthermore, it was hypothesised that the combination of traditional strength training and resistant training with blood flow restriction would be an effective training intervention elite athletes can implement into their training program. The purpose of this study was the comparison of combination of resistant training with blood flow restriction and traditional strength training based linear and undulating periodization on testosterone, IGF-1 and strength in active girls. Methods: 26 active girls (with 1 to 3 times training per week) were participated in this study voluntarily. were selected and randomly divided into three groups: non-periodization, linear periodization and undulating periodization. Training program was conducted for 8 weeks and 3 days per week. Traditional strength training (TST) performed with 75% 1RM and strength training with blood flow restriction (BFR) performed with 30% 1RM (with wrapping a rubber tourniquet around the proximal leg). The non-periodization group performed TST with constant intensity during 8 weeks. In linear periodization, subjects performed BFR during the first 4 weeks and TST during the second 4 weeks. In undulating periodization, participants switch from BFR to TST every session. Before and after training program, testosterone, IGF-1 and strength were taken. Results: There was significant increase for testosterone (P=0.035), IGF-1 (P=0.001) and strength (P=0.001) in all groups from pre to post test, but there was no significant difference between groups. Conclusion: Combination of traditional strength training and resistant training with blood flow restriction based linear or undulating periodization has similar effect with non-periodization strength training on testosterone, IGF-1, hypertrophy and strength in active girls. Furthermore, it can be suggested that BFRT could be used on days where a recovery from high intensity TST or perhaps a psychological break from TST is needed. |
| Keywords |
| training periodization, strength training, Kaatsu, hypertrophy |
| Status: Abstract Accepted (Poster Presentation) |
