| Autor: |
Sánchez-Moreno, Miguel, Rodríguez-Rosell, David, Pareja-Blanco, Fernando, Mora-Custodio, Ricardo, González-Badillo, Juan José |
| Předmět: |
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| Zdroj: |
International Journal of Sports Physiology & Performance; Nov2017, Vol. 12 Issue 10, p1378-1384, 7p, 3 Charts, 4 Graphs |
| Abstrakt: |
Purpose: To analyze the relationship between movement velocity and relative load (%1RM) in the pull-up exercise (PU) and to determine the pattern of repetition-velocity loss during a single set to failure in pulling one's own body mass. Methods: Fifty-two men (age = 26.5 ± 3.9 y, body mass = 74.3 ± 7.2 kg) performed a first evaluation (T1) consisting of an 1-repetition-maximum test (1RM) and a test of maximum number of repetitions to failure pulling one's own body mass (MNR) in the PU exercise. Thirtynine subjects performed both tests on a second occasion (T2) following 12 wk of training. Results: The authors observed a strong relationship between mean propulsive velocity (MPV) and %1RM (r = -.96). Mean velocity attained with 1RM load (V1RM) was 0.20 ± 0.05 m⋅s-1, and it influenced the MPV attained with each %1RM. Although 1RM increased by 3.4% from T1 to T2, the relationship between MPV and %1RM, and V1RM, remained stable. The authors also confirmed stability in the V1RM regardless of individual relative strength. The authors found a strong relationship between percentage of velocity loss and percentage of performed repetitions (R² = .88), which remained stable despite a 15% increase in MNR. Conclusions: Monitoring repetition velocity allows estimation of the %1RM used as soon as the first repetition with a given load is performed, and the number of repetitions remaining in reserve when a given percentage of velocity loss is achieved during a PU exercise set. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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