Acute Responses to On-Court Repeated-Sprint Training Performed With Blood Flow Restriction Versus Systemic Hypoxia in Elite Badminton Athletes

2019 ◽  
Vol 14 (9) ◽  
pp. 1280-1287 ◽  
Author(s):  
Pedro L. Valenzuela ◽  
Guillermo Sánchez-Martínez ◽  
Elaia Torrontegi ◽  
Javier Vázquez-Carrión ◽  
Manuela González ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Heart Rate Variability ◽  
Creatine Kinase ◽  
Perceived Exertion ◽  
Sprint Training ◽  
Flow Restriction ◽  
Repeated Sprint ◽  
Systemic Hypoxia ◽  
Acute Responses

Purpose: Repeated-sprint training (RS) is commonly conducted in normoxia, but its completion with localized (blood-flow restriction [BFR]) or systemic hypoxia has been proven effective for performance enhancement. Yet, few studies have applied these types of RS sessions in racket sports. The authors aimed to determine the acute responses to these types of training in elite badminton players. Methods: Eight male elite badminton players participated in this randomized crossover study. They performed 3 on-court RS sessions, each consisting of 3 sets of 10 repetitions of 10-s badminton-specific movements in normoxia (RSN), systemic normobaric hypoxia (RSH, FiO2 = 14%), or with BFR (RS-BFR, 40% arterial occlusion pressure). Performance, perceptual (ie, rating of perceived exertion), and physiological (ie, pulse saturation, muscle oxygenation, blood lactate, creatine kinase, heart-rate variability) responses were measured after each set and up to 48 h postsession. Results: RS-BFR induced a greater performance impairment (lower distance and accelerations) and a higher local perceived exertion in the legs than RSN and RSH (P < .05), whereas greater overall fatigue was reported with RSH (P < .05). RSH induced a lower saturation (P < .001), but no differences were observed in muscle oxygenation between conditions. No differences in creatine kinase or heart-rate variability were observed at any time point (from baseline up to 48 h after the session). Conclusions: RS-BFR—and, to a lower extent, RSH—resulted in impaired performance and a higher perceived strain than RSN. However, these 2 hypoxic methods do not seem to induce a long-lasting (post 24–48 h) physiological stress in elite badminton players.

The Effects of Blood Flow Restriction on Muscle Activation and Hypoxia in Individuals With Chronic Ankle Instability

2020 ◽  
Vol 29 (5) ◽  
pp. 633-639
Author(s):  
Brian Killinger ◽  
Jakob D. Lauver ◽  
Luke Donovan ◽  
John Goetschius
Keyword(s):  
Blood Flow ◽  
Oxygen Saturation ◽  
Muscle Activation ◽  
Perceived Exertion ◽  
Ankle Instability ◽  
Muscle Oxygen ◽  
Flow Restriction ◽  
Acute Responses ◽  
Muscle Adaptations ◽  
Resistance Exercises

Context: Muscle dysfunction is common in patients with chronic ankle instability (CAI). Blood flow restriction (BFR) may enhance muscle responses during exercise and provide an opportunity to enhance muscle adaptations to ankle rehabilitation exercises; however, there is no evidence examining the effect of BFR on muscle function in CAI patients. Objective: Examine the effects of BFR on muscle activation and oxygen saturation during submaximal ankle eversion and dorsiflexion exercises in individuals with CAI. Design: Cross-over study design. Setting: Laboratory setting. Patients (or Other Participants): Nineteen young adults with a history of CAI. Interventions: Participants performed 4 sets (30, 15, 15, and 15) of eversion and dorsiflexion resistance exercises at 30% of maximum voluntary isometric contraction during 2 conditions, BFR and control. For BFR, a cuff was applied above the knee at 80% of blood flow occlusion. For control, the cuff was not inflated. Main Outcome Measures: Fibularis longus and tibialis anterior electromyography muscle activation, lower-leg muscle oxygen saturation, and ratings of perceived exertion were recorded during exercises. Results: Average grand mean muscle activation was 5.6% greater during eversion (P = .03) and 7.7% greater during dorsiflexion (P = .01) resistance exercises with BFR compared with control; however, the magnitudes of the effects of BFR were only clinically important during the dorsiflexion exercises. Lower-leg muscle oxygen saturation was 31% to 44% lower (P < .001) during BFR exercises. Ratings of perceived exertion were significantly higher during BFR exercises (P < .001). Conclusions: Greater muscle activation and hypoxia were present during submaximal resistance exercise with BFR in participants with CAI. Greater muscle activation and hypoxia during BFR exercises may be important acute responses mediating the training-related muscle adaptations that have been observed with BFR. The presence of these acute responses in CAI patients supports further research examining BFR as a potential ankle rehabilitation tool.

scholarly journals Acute Physiological Responses to Four Running Sessions Performed at Different Intensity Zones

2020 ◽  
Author(s):  
Olli-Pekka Nuuttila ◽  
Heikki Kyröläinen ◽  
Keijo Häkkinen ◽  
Ari Nummela
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Moderate Intensity ◽  
Multiple Perspectives ◽  
Countermovement Jump ◽  
Acute Responses ◽  
High Intensity Interval

AbstractThis study investigated acute responses and post 24-h recovery to four running sessions performed at different intensity zones by supine heart rate variability, countermovement jump, and a submaximal running test. A total of 24 recreationally endurance-trained male subjects performed 90 min low-intensity (LIT), 30 min moderate-intensity (MOD), 6×3 min high-intensity interval (HIIT) and 10×30 s supramaximal-intensity interval (SMIT) exercises on a treadmill. Heart rate variability decreased acutely after all sessions, and the decrease was greater after MOD compared to LIT and SMIT (p<0.001; p<0.01) and HIIT compared to LIT (p<0.01). Countermovement jump decreased only after LIT (p<0.01) and SMIT (p<0.001), and the relative changes were different compared to MOD (p<0.01) and HIIT (p<0.001). Countermovement jump remained decreased at 24 h after SMIT (p<0.05). Heart rate during the submaximal running test rebounded below the baseline 24 h after all sessions (p<0.05), while the rating of perceived exertion during the running test remained elevated after HIIT (p<0.05) and SMIT (p<0.01). The current results highlight differences in the physiological demands of the running sessions, and distinct recovery patterns of the measured aspects of performance. Based on these results, assessments of performance and recovery from multiple perspectives may provide valuable information for endurance athletes, and help to improve the quality of training monitoring.

Effects of Additional Repeated Sprint Training During Preseason on Performance, Heart Rate Variability, and Stress Symptoms in Futsal Players

2014 ◽  
Vol 28 (10) ◽  
pp. 2815-2826 ◽  
Author(s):  
Lúcio F. Soares-Caldeira ◽  
Eberton A. de Souza ◽  
Victor H. de Freitas ◽  
Solange M.F. de Moraes ◽  
Anthony S. Leicht ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sprint Training ◽  
Stress Symptoms ◽  
Repeated Sprint

scholarly journals Does Peripheral Lower Body Blood Flow Restriction Training Effect Aerobic Adaptations in Recreationally Active Adults? A Case Series

2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Austin Bennett ◽  
Sean Collins ◽  
Kaitlyn King ◽  
Caitlyn Harper ◽  
Jill Lucas ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Perceived Exertion ◽  
Case Series ◽  
Blood Flow Restriction ◽  
Aerobic Performance ◽  
Target Tissue ◽  
Flow Restriction ◽  
Significant Difference ◽  
Active Adults

Introduction: Blood flow restriction (BFR) training is a novel training method that has been shown to promote positive aerobic and anaerobic adaptations under low intensity exercise by inhibiting blood flow to target tissue resulting in hypoxia and metabolic byproduct accumulation. This has been shown to have a direct positive effect on aerobic performance adaptation. The purpose was to explore the effect of BFR training on aerobic performance. Methods:  Seven recreationally active adults were randomly assigned to either the BFR group (n=4, BFR) or non-BFR group (n=3, CON). Three testing sessions were conducted throughout the study (Pre-Test, Mid-Test, Post-Test) which consisted of a graded cycle ergometer maximum oxygen consumption (VO2max) test using COSMED-K5 indirect calorimetry. Eleven BFR training sessions were performed consisting of 20-min of cycling at 35-45% of heart rate reserve (HRR) with at 60% (BFR) or 5% (CON) arterial occlusion pressure (AOP) on the BFR cuffs. Results: Absolute VO2max, Relative VO2max, respiratory exchange ratio (RER), maximum heart rate (HRmax), and maximum rate of perceived exertion (RPEmax) reported no significant difference between BFR and CON. There was a significant difference (p < 0.05) found in time to reach VO2max and maximum watts (Wmax) reached which declined over the course of the training intervention. Conclusions: Bilateral lower limb aerobic BFR training resulted in no change in VO2max over seven weeks.  

Acute resistance exercise with blood flow restriction effects on heart rate, double product, oxygen saturation and perceived exertion

2014 ◽  
Vol 36 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Gabriel R. Neto ◽  
Maria S. C. Sousa ◽  
Gabriel V. Costa e Silva ◽  
Ana L. S. Gil ◽  
Belmiro F. Salles ◽  
...  
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Resistance Exercise ◽  
Oxygen Saturation ◽  
Perceived Exertion ◽  
Blood Flow Restriction ◽  
Double Product ◽  
Flow Restriction

scholarly journals Recovery behavior after matches for returning to training in volleyball athletes

2021 ◽  
Vol 38 (5) ◽  
pp. 343-349
Author(s):  
Ananda S. Cardoso ◽  
Guilherme P. Berriel ◽  
Pedro Schons ◽  
Rochelle R. Costa ◽  
Luiz Fernando M. Kruel
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Negative Correlation ◽  
Perceived Exertion ◽  
Recovery Period ◽  
Ratings Of Perceived Exertion ◽  
Significance Level ◽  
Recovery Behavior ◽  
Vertical Jumps ◽  
And Training

The aim of this research was to evaluate the behavior of vertical jumps performance in professional volleyball athletes during matches and training and their relationships with fatigue and recovery through heart rate variability (HRV), ratings of perceived exertion (RPE) and perceived recovery status (PRS). Nine male professional volleyball athletes participated in the study, with mean age: 25.66 ± 5.7 years, mean body mass: 97.81 ± 8.65 Kg and mean height: 200.94 ± 5.19 cm, with experience in national and international competitions. HRV and PRS were evaluated in the morning of matches and in the presentation for the first day of training after matches. RPE was collected immediately after matches and at the end of training days. Jumps performance was monitored during the matches and during the first days of training. The data was grouped by matches and training sessions. Significance level adopted was α ≤ 0.05. There were no alterations in HRV and PRS evaluated after matches and before training sessions, as well as in RPE after training. Jumps height was greater during the matches (p< 0.013) and there were no differences in the number of jumps. There was a positive correlation between the number of jumps during matches and PRS before matches (r= 0.336, p= 0.015) and a negative correlation between the number of jumps during training and pre-training PRS (r= -0.318, p= 0.002). We conclude that the recovery period proposed by the team proved to be sufficient for the athletes to maintain the same condition for returning to training. This information can assist physical trainers to prescribe training loads for the return to training.

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