Sprint interval training diminished sympathovagal reactivation and neuromuscular performance (CMJ height declined from 34.7 to 33.5 cm, p<0.01) compared with work-matched BIT and VICT.
RCT (n=18)
Randomized order
Does sprint interval training attenuate neuromuscular function and vagal reactivity compared with burpee interval training and vigorous intensity continuous training in moderately active adults?
Sprint interval training diminishes sympathovagal reactivation and neuromuscular performance compared with work-matched burpee interval training and vigorous intensity continuous training.
p-value: p=<0.01
ABSTRACT: Benítez-Flores, S, de S. Castro, FA, Lusa Cadore, E, and Astorino, TA. Sprint interval training attenuates neuromuscular function and vagal reactivity compared with high-intensity functional training in real-world circumstances. J Strength Cond Res 37(5): 1070-1078, 2023-The aim of this study was to compare the acute cardiovascular and neuromuscular effects of 3 time-matched sessions of high-intensity training. Eighteen moderately active adults (9 women and 9 men age: 23 ± 2.9 years; maximum oxygen consumption (V̇ o2 max): 47.6 ± 4.1 ml·kg -1 ·min -1 ) performed three low-volume (∼9 minutes) sessions in a randomized order: sprint interval training (SIT), burpee interval training (BIT) (10 × 5 seconds efforts × 35 seconds recovery), and vigorous intensity continuous training (VICT) (6 minutes 5 seconds of running at ∼85% of peak heart rate HR peak ). Indices related to heart rate (HR), neuromuscular performance (counter movement jump height CMJ height and squat and bench press power), and autonomic balance (heart rate recovery and heart rate variability HRR and HRV )were monitored during exercise. Sprint interval training and VICT elicited a higher HR mean (171.3 ± 8.4 and 166.5 ± 7.5 vs. 150.5 ± 13.6 b·min -1 , p < 0.001) and time of ≥90%HR peak (133.3 ± 117.4 and 110 ± 128.9 vs. 10 ± 42.4 seconds, p < 0.01) than BIT. Sprint interval training exhibited a slower HRR and lower HRV than BIT and VICT ( p < 0.05) postsession. Moreover, only SIT resulted in a significant decline ( p < 0.01) in CMJ height (34.7 ± 7.2 to 33.5 ± 7.2 cm), relative squat mean power (25.5 ± 4.5 to 23.8 ± 4.9 W·kg -1 ), and relative bench press peak power (6.9 ± 2.4 to 6.2 ± 2.5 W·kg -1 ). Results revealed that SIT diminishes the sympathovagal reactivation and neuromuscular performance compared with work-matched BIT and VICT.
Benítez‐Flores et al. (Tue,) conducted a rct in Moderately active adults (n=18). Sprint interval training (SIT) vs. Burpee interval training (BIT) and vigorous intensity continuous training (VICT) was evaluated on Acute cardiovascular and neuromuscular effects (heart rate, neuromuscular performance, and autonomic balance) (p=<0.01). Sprint interval training diminished sympathovagal reactivation and neuromuscular performance (CMJ height declined from 34.7 to 33.5 cm, p<0.01) compared with work-matched BIT and VICT.