Key result
Eccentric training elevates post-exercise heart rate and decreases product pressure rate in Paralympic athletes.
Why the study?
Paralympic powerlifting involves high-load strength training causing hemodynamic adaptations, but hemodynamic responses comparing traditional versus eccentric training sessions had not been evaluated in these athletes.
Does eccentric training compared to traditional training alter acute hemodynamic responses in Paralympic powerlifting athletes?
Does eccentric training compared to traditional training alter acute hemodynamic responses in Paralympic powerlifting athletes?
p-value: p=0.023
Both traditional and eccentric training methods induce significant acute hemodynamic changes in Paralympic powerlifting athletes.
May warrant post-exercise monitoring in athletes; hypothesis-generating for eccentric versus traditional training effects.
Background: Paralympic powerlifting (PP) is one of the sports modalities that uses strength training with high loads, causing various physiological responses resulting from hemodynamic adaptations. Objective: To evaluate hemodynamic responses after traditional (TT) and eccentric (ET) training sessions in PP athletes. Methods: Twelve national-level PP athletes, aged: (Mean ± SD) 30.8 ± 10.05 years; 70.0 ± 16.1 kg. In the intervention, five sets of five repetitions (5 × 5) of the bench press at 80% of 1 repetition maximum (1RM) were used; in the TT and in the ET, 5 × 5 of the bench press with a load in the eccentric phase of 110% and that in the concentric phase of 80% of 1RM were used. Results: Compared to baseline, heart rate was significantly elevated at various times in the ET, between before and 20 min after (p = 0.023), and 40 min after (p = 0.035), but decreased to baseline in 24 h (p = 0.043, η2p = 0.395). In addition, the product pressure rate in the ET had a decrease between the moments before and 60 min after (p = 0.042), and before and 24 h after (p = 0.043). A high effect on myocardial oxygen volume in ET at 24 h was found (p = 0.018; η2p = 0.393). Conclusions: One session of traditional and eccentric training methods can be effective in causing significant changes in the cardiovascular system in PP athletes.
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Jesus et al. (2022) studied Paralympic powerlifting athletes (n=12). Eccentric training (ET) vs. Traditional training (TT) (5 sets of 5 repetitions at 80% of 1RM) was evaluated on Hemodynamic responses (heart rate) (p=0.023). Eccentric training significantly elevated heart rate up to 40 minutes post-exercise (p=0.035) and decreased product pressure rate at 60 minutes (p=0.042) compared to baseline in Paralympic athletes.
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