| Autor: |
Andrade LS; Federal University of Pelotas., David GB; Federal University of Pelotas., Wilhelm EN; Federal University of Rio Grande of Sul., Pinto SS; Federal University of Pelotas., Alberton CL; Federal University of Pelotas. |
| Jazyk: |
angličtina |
| Zdroj: |
Research quarterly for exercise and sport [Res Q Exerc Sport] 2023 Mar; Vol. 94 (1), pp. 143-150. Date of Electronic Publication: 2022 Mar 18. |
| DOI: |
10.1080/02701367.2021.1948954 |
| Abstrakt: |
Purpose : The aim of this study was to analyze the acute effect of a treadmill high-intensity interval protocol on subsequent upper body and lower body strength exercise performance. Method : Sixteen young men had their maximal aerobic capacity and one-repetition maximum (1RM) determined and underwent four randomized conditions: a half-squat control session; a bench press control session; a treadmill interval protocol followed by a half-squat experimental session; and a treadmill interval protocol followed by a bench press experimental session. During the control sessions, four sets to failure for each exercise were performed at 80% of 1RM. In the experimental sessions, participants performed eight sprints of 40 s at 100% velocity of maximal oxygen uptake with 20 s of passive interval between them, followed by the same strength exercise protocol of the control sessions. The number of repetitions during each protocol and participants' heart rate (HR),and blood lactate concentration ([lac]) were compared pre and post protocols and exercises. Results : Fewer repetitions were completed in the experimental session compared to the control sessions ( p < .001). Moreover, the reduction in number of repetitions performed was more evident in half-squat compared to bench press ( p = .018). HR was higher at the end of sessions with the interval protocol for both exercises ( p < .001). The [lac] was higher at the end of session with the interval protocol for half-squat ( p = .003). Conclusions : These findings suggest that previous high-intensity interval running may impair subsequent strength exercise performance, but the magnitude of the negative effect is greater in the lower limbs. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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