HIIT Models in Addition to Training Load and Heart Rate Variability Are Related With Physiological and Performance Adaptations After 10-Weeks of Training in Young Futsal Players

Abstract

IntroductionThe present study aimed to investigate the effects of two high-intensity interval training (HIIT) shuttle-run-based models, over 10 weeks on aerobic, anaerobic, and neuromuscular parameters, and the association of the training load and heart rate variability (HRV) with the change in the measures in young futsal players.MethodsEleven young male futsal players (age: 18.5 ± 1.1 years; body mass: 70.5 ± 5.7 kg) participated in this study. This pre-post study design was performed during a typical 10 weeks training period. HIIT sessions were conducted at 86% (HIIT86; n = 6) and 100% (HIIT100; n = 5) of peak speed of the FIET. Additionally, friendly and official matches, technical-tactical and strength-power training sessions were performed. Before and after the training period, all players performed the FIET, treadmill incremental, repeated sprint ability (RSA), sprint 15-m, and vertical jump tests (CMJ and SJ), and the HRV was measured. Training load (TL) was monitored using the session rating of perceived effort. Data analysis was carried out using Bayesian inference methods.ResultsThe HIIT86 model showed clear improvements for the peak oxygen uptake (VO2peak), peak speed in the treadmill incremental test, first and second ventilatory thresholds, RSA best and mean times, CMJ, and SJ. The HIIT100 model presented distinct advances in VO2peak, peak speed in the treadmill incremental test, RSA mean time, and CMJ. Between HIIT models comparisons showed more favorable probabilities of improvement for HIIT86 than HIIT100 model in all parameters. TL data and HIIT models strongly explained the changes in the RSA mean and best times (R2 = 0.71 and 0.87, respectively), as well as HRV changes, and HIIT models explained positively VO2peak changes (R2 = 0.72). All other changes in the parameters were low to moderately explained.ConclusionThe HIIT86 proved to be more effective for improving aerobic, RSA, and neuromuscular parameters than HIIT100 during a typical 10-week futsal training period. So, strength and conditioning specialists prescribing shuttle-run intermittent exercises at submaximal intensities can manage the individual acceleration load imposed on athlete increasing or decreasing either the set duration or the frequency of change of direction during HIIT programming.

Effects of high-intensity interval training with an eccentric hamstring exercise program in futsal players: A randomized controlled trial

“…This might be interesting since in a futsal match, most efforts last between 1 and 30 seconds with pause intervals ranging from 1 to 15 seconds. [35] These results are similar to those presented in the study by Campos et al [36] in which a HIIT protocol based on a series of sprints was carried out for 10 weeks and obtained improvements in the ability to repeat sprints in young futsal players. However, in these studies NC exercise was not added, whose combination with HIIT has shown a 2.84% improvement in intermittent work performance in our study.…”

“…Regarding vertical jumps, the interventions were not enough to yield significant changes. The main reason may be the short duration of the intervention since previous studies on the isolated application of HIIT [36] and NC exercise [37] for 10 weeks did show significant changes in futsal and soccer players. The effects of NC exercise are promising as it is known to target the hamstrings and improve lower limb strength and power, [12][13][14][15] which are important factors for vertical jump performance.…”

Aerobic and anaerobic capacities in determining adolescent futsal players’ performance levels

“…Furthermore, the average height in both groups was within the normal population in Indonesia (Riskesdas, 2018). Although PELATDA athletes' height was higher than non-PELATDA athletes', this research results differed from the results of research conducted in Brazil and Spain, which showed that the average height of semi-professional athletes from these two countries was on average 174 cm (Campos et al, 2021;Romero et al, 2020;Sekulic et al, 2020). However, in futsal, no research concluded the correlation between height and performance in the field.…”

The Effects of a Supramaximal Intermittent Training Program on Aerobic and Anaerobic Running Measures in Junior Male Soccer Players

“…Given that our supramaximal training involved execution of several shuttle-runs, the possibility that this increased time spent accelerating may have contributed to the lower decrease of 10-m sprint speed observed in the EG should not be disregarded. For instance, intermittent shuttle-run training models (due to their directional changes) have been considered effective strategies to maintain or enhance the speed-power-related abilities in team sport players ( Campos et al, 2021 ; Teixeira et al, 2018 ). Another reason for the decrease in 10-m sprint speed following the intervention period could be related to the high-volume of technical-tactical drills (i.e., high endurance demand) and their potential concurrent effects on sprinting ability during a short-term period of the preseason phase, which is also featured by high training loads and accumulated fatigue ( Nakamura et al, 2016 ).…”