scholarly journals POLYSULFIDE-ENRICHED GARLIC SUPPLEMENTATION IMPROVES COGNITIVE FUNCTION AND REDUCES HEART RATE DURING HIGH INTENSITY INTERMITTENT EXERCISE

2021 ◽  
Vol 17 (2) ◽  
pp. 225-244
Author(s):  
Ahmad Safwanudin Nordin ◽  
Alif Nazrin Jumat ◽  
Iqbal Khan Norhamazi ◽  
Syarifah Maimunah Mud Puad ◽  
Adam Linoby
Keyword(s):  
Heart Rate ◽  
Cognitive Function ◽  
High Intensity ◽  
Intermittent Exercise

Effect of voluntary hypocapnic hyperventilation or moderate hypoxia on metabolic and heart rate responses during high-intensity intermittent exercise

2017 ◽  
Vol 117 (8) ◽  
pp. 1573-1583
Author(s):  
Kohei Dobashi ◽  
Naoto Fujii ◽  
Kazuhito Watanabe ◽  
Bun Tsuji ◽  
Yosuke Sasaki ◽  
...  
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Moderate Hypoxia

scholarly journals Postexercise cold-water immersion improves intermittent high-intensity exercise performance in normothermia

2016 ◽  
Vol 41 (11) ◽  
pp. 1163-1170 ◽  
Author(s):  
Avina McCarthy ◽  
James Mulligan ◽  
Mikel Egaña
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Core Temperature ◽  
High Intensity ◽  
Perceived Exertion ◽  
Cold Water ◽  
Intermittent Exercise ◽  
Water Immersion ◽  
Cold Water Immersion ◽  
High Intensity Exercise

A brief cold water immersion between 2 continuous high-intensity exercise bouts improves the performance of the latter compared with passive recovery in the heat. We investigated if this effect is apparent in normothermic conditions (∼19 °C), employing an intermittent high-intensity exercise designed to reflect the work performed at the high-intensity domain in team sports. Fifteen young active men completed 2 exhaustive cycling protocols (Ex1 and Ex2: 12 min at 85% ventilatory threshold (VT) and then an intermittent exercise alternating 30-s at 40% peak power (Ppeak) and 30 s at 90% Ppeak to exhaustion) separated by 15 min of (i) passive rest, (ii) 5-min cold-water immersion at 8 °C, and (iii) 10-min cold-water immersion at 8 °C. Core temperature, heart rate, rates of perceived exertion, and oxygen uptake kinetics were not different during Ex1 among conditions. Time to failure during the intermittent exercise was significantly (P < 0.05) longer during Ex2 following the 5- and 10-min cold-water immersions (7.2 ± 3.5 min and 7.3 ± 3.3 min, respectively) compared with passive rest (5.8 ± 3.1 min). Core temperature, heart rate, and rates of perceived exertion were significantly (P < 0.05) lower during most periods of Ex2 after both cold-water immersions compared with passive rest. The time constant of phase II oxygen uptake response during the 85% VT bout of Ex2 was not different among the 3 conditions. A postexercise, 5- to 10-min cold-water immersion increases subsequent intermittent high-intensity exercise compared with passive rest in normothermia due, at least in part, to reductions in core temperature, circulatory strain, and effort perception.

scholarly journals High-Intensity Intermittent Exercise and its Effects on Heart Rate Variability and Subsequent Strength Performance

2016 ◽  
Vol 7 ◽  
Author(s):  
Valéria L. G. Panissa ◽  
Cesar C. Cal Abad ◽  
Ursula F. Julio ◽  
Leonardo V. Andreato ◽  
Emerson Franchini
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Strength Performance

scholarly journals Acute ischemic preconditioning does not influence high-intensity intermittent exercise performance

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4118 ◽  
Author(s):  
Isabela Coelho Marocolo ◽  
Gustavo Ribeiro da Mota ◽  
André Monteiro Londe ◽  
Stephen D. Patterson ◽  
Octávio Barbosa Neto ◽  
...  
Keyword(s):  
Heart Rate ◽  
Ischemic Preconditioning ◽  
Exercise Performance ◽  
High Intensity ◽  
Perceived Exertion ◽  
Intermittent Exercise ◽  
Lactate Concentration ◽  
Soccer Players ◽  
Rate Of Perceived Exertion ◽  
And Control

This study evaluated the acute effect of ischemic preconditioning (IPC) on a high-intensity intermittent exercise performance and physiological indicators in amateur soccer players. Thirteen players (21.5 ± 2 yrs) attended three trials separated by 3–5 days in a counterbalanced randomized cross-over design: IPC (4 × 5-min occlusion 220 mmHg/reperfusion 0 mmHg) in each thigh; SHAM (similar to the IPC protocol but “occlusion” at 20 mmHg) and control (seated during the same time of IPC). After 6-min of each trial (IPC, SHAM or control), the players performed the YoYo Intermittent Endurance Test level 2 (YoYoIE2). The distance covered in the YoYoIE2 (IPC 867 ± 205 m; SHAM 873 ± 212 m; control 921 ± 206 m) was not different among trials (p = 0.10), furthermore, lactate concentration and rate of perceived exertion did not differ (P > 0.05) among protocols. There were also no significant differences in either mean heart rate (HR) or peak HR (p > 0.05) for both IPC and SHAM compared to control. Therefore, we conclude that acute IPC does not influence high-intensity intermittent exercise performance in amateur soccer players and that rate of perceived exertion, heart rate and lactate do not differ between the intervention IPC, SHAM and control.

High-Intensity Intermittent Exercise and Autonomic Modulation: Effects of Different Volume Sessions

2017 ◽  
Vol 38 (06) ◽  
pp. 468-472 ◽  
Author(s):  
Carlos Iván Mesa Castrillón ◽  
Rodolfo Augusto Travagin Miranda ◽  
Carolina Cabral-Santos ◽  
Lais Manata Vanzella ◽  
Bruno Rodrigues ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Recovery Period ◽  
Autonomic Modulation ◽  
Physically Active ◽  
Maximal Aerobic Speed ◽  
Lower Volume ◽  
Before And After

AbstractThe aim of this study was to compare heart rate variability (HRV) recovery after 2 sessions of high-intensity intermittent exercise at different volumes (1.25 km [HIIE1.25] and 2.5 km [HIIE2.5]). 13 participants determined their maximal aerobic speed (MAS) and completed 2 HIIE (1:1 at 100% MAS) trials. The heart rate was recorded before and after each session. HRV indicators were calculated according to time (RMSSD and SDNN) and frequency (LF, HF and LF/HF ratio) domains. SDNN and RMSSD presented effect of test (F=20.97; p<0.01 and F=21.00; p<0.01, respectively) and moment (F=6.76; p<0.01 and F=12.30; p<0.01, respectively), without interaction. Even though we did not find an interaction effect for any HRV variables, the HIIE2.5 presented a delay of only 5 min in HRV recovery, when compared to HIIE1.25. However, the effects of the test (SDNN, RMSSD, LF-log, and HF-log) indicate higher autonomic stress during the entire recovery period. These findings may indicate that exercise volume interferes with HRV recovery. If so, physically active subjects may choose a lower volume exercise (i. e., HIIE1.25) in order to promote similar physical fitness adaptations with lower loading on autonomic modulation.

scholarly journals Effect of Differing Durations of High-Intensity Intermittent Activity on Cognitive Function in Adolescents

2021 ◽  
Vol 18 (21) ◽  
pp. 11594
Author(s):  
Lorna M. Hatch ◽  
Karah Dring ◽  
Ryan A. Williams ◽  
Caroline Sunderland ◽  
Mary Nevill ◽  
...  
Keyword(s):  
Cognitive Function ◽  
High Intensity ◽  
Acute Exercise ◽  
Intermittent Exercise ◽  
Response Times ◽  
Flanker Task ◽  
Test List ◽  
Exercise Duration ◽  
Item Level ◽  
Sternberg Paradigm

Exercise duration may influence the acute effects on cognition. However, only one study to date has explored the dose-response relationship between exercise duration and cognition in adolescents. Thus, the purpose of this study was to investigate the effect of differing durations of high-intensity intermittent running on cognition in adolescents. Thirty-eight adolescents (23 girls) completed three trials separated by 7 d: 30 min exercise, 60 min exercise, and rest; in a randomised crossover design. The exercise was a modified version of the Loughborough Intermittent Shuttle Test (LIST), which elicited high-intensity intermittent exercise. Cognitive function tests (Stroop test, Sternberg paradigm, Flanker task) were completed 30 min pre, immediately post, and 45 min post exercise. Response times on the incongruent level of the Flanker task improved to a greater extent 45 min following the 30 min LIST, compared to rest (p = 0.009). Moreover, response times improved to a greater extent on the three-item level of Sternberg paradigm 45 min following the 30 min LIST, compared to the 60 min LIST (p = 0.002) and rest (p = 0.013), as well as on the five-item level 45 min following the 30 min LIST, compared to the 60 min LIST (p = 0.002). In conclusion, acute exercise enhanced subsequent cognition in adolescents, but overall, 30 min of high-intensity intermittent running is more favourable to adolescents’ cognition, compared to 60 min.

scholarly journals Peripheral BDNF and psycho-behavioral aspects are positively modulated by high-intensity intermittent exercise and fitness in healthy women

2020 ◽  
Author(s):  
Rodrigo de Poli ◽  
Vithor Lopes ◽  
Fabio Lira ◽  
Alessandro Zagatto ◽  
Alberto Jimenez-Maldonado ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Stroop Task ◽  
High Intensity ◽  
Perceived Exertion ◽  
Intermittent Exercise ◽  
Follicular Phase ◽  
Menstrual Phase ◽  
Healthy Women ◽  
Exercise Enjoyment ◽  
Two Phases

Abstract The study aimed to investigate the effect of high-intensity intermittent effort (HIIE) performed in luteal and follicular menstrual phases on BDNF, cognitive function, mood and exercise enjoyment. Fourteen healthy women completed four experimental sessions, randomly. For each menstrual phase one graded exercise test (GXT) and one HIIE session (10 × 1-min runs 90% peak GXT velocity [1-min recovery]) were performed. Blood samples were collected at rest and immediately after efforts, as well profile of mood states questionnaire (POMS) and Stroop-task application. During the HIIE, subjective scales were applied (feeling, felt arousal, rate of perceived exertion and physical activity enjoyment). In serum BDNF no difference was observed between menstrual phases (p = 0.87). Nevertheless, HIIE increased BDNF concentration during two phases (p = 0.03). In addition, the magnitude of circulating BDNF changes (BDNFΔ) and VO2max showed an inverse relationship in follicular phase (r= -0.539, p = 0.046), whereas in luteal phase the BDNFΔ were negatively correlated with duration (r= -0.684, p = 0.007) and RPE (r= -0.726, p = 0.004) in GXT. No difference between menstrual phases was observed for POMS (p ≥ 0.05); however, HIIE attenuates tension (p < 0.01), depression (p < 0.01) and anger moods (p < 0.01), independently of menstrual phases. Subjective scales and Stroop-task did not show differences. Menstrual cycle does not affect BDNF, cognitive function, mood and exercise enjoyment, but HIIE increases peripheral BDNF and attenuate tension, depression and anger independently of menstrual phase. Besides, the BDNFΔ were correlated with fitness status in follicular phase, exhibiting higher changes in women with lower fitness status.

Relationship Between Aerobic Fitness and Metabolic Recovery From Intermittent Exercise in Endurance Athletes

1997 ◽  
Vol 22 (1) ◽  
pp. 78-85 ◽  
Author(s):  
Gordon J. Bell ◽  
Gary D. Snydmiller ◽  
Diane S. Davies ◽  
H. Art Quinney
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Aerobic Fitness ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Maximal Oxygen Consumption ◽  
High Intensity Exercise ◽  
Ventilation Threshold ◽  
Metabolic Recovery ◽  
Lactate Removal

This investigation examined the relationship between several different aerobic fitness test results and measurements of metabolic recovery from intermittent, high-intensity exercise in 16 male cyclists. No significant correlations were found between maximal oxygen consumption, ventilation threshold, various submaximal endurance measures and the rate of metabolic recovery, net excess postexercise oxygen consumption, or blood lactate removal after intermittent high-intensity exercise except for submaximal heart rate (r = .66, p < .05). These data indicate that aerobic fitness assessments do not indicate the ability to recover after intermittent, high-intensity exercise in endurance-trained cyclists. Key words: maximal oxygen consumption, recovery oxygen consumption, ventilation threshold, lactate, heart rate

scholarly journals Peripheral BDNF and psycho-behavioral aspects are positively modulated by high-intensity intermittent exercise and fitness in healthy women

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rodrigo Araujo Bonetti de Poli ◽  
Vithor Hugo Fialho Lopes ◽  
Fábio Santos Lira ◽  
Alessandro Moura Zagatto ◽  
Alberto Jimenez-Maldonado ◽  
...  
Keyword(s):  
Cognitive Function ◽  
Physical Fitness ◽  
Stroop Task ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Follicular Phase ◽  
Menstrual Phase ◽  
Healthy Women ◽  
Exercise Enjoyment ◽  
Serum Bdnf

AbstractAcute high-intensity intermittent exercise (HIIE) induces the myokine secretion associated with neurogenesis, as well brain-derived neurotrophic factor (BDNF); however, it remains unknown how the menstrual phase influences this secretion after an acute exercise session. The current study aimed to investigate the effects of HIIE performed in luteal and follicular menstrual phases on BDNF, cognitive function, mood, and exercise enjoyment. Fourteen healthy women completed four experimental sessions, randomly. One graded exercise test (GXT) and one HIIE session (10 × 1-min runs 90% peak GXT velocity [1-min recovery]) were performed for each menstrual phase. Blood samples were collected at rest and immediately after efforts, and the profile of mood states questionnaire (POMS) and Stroop-task test were applied. During the HIIE, subjective scales were applied (feeling, felt arousal, rate of perceived exertion, and physical activity enjoyment). The main results showed that the serum BDNF presented no difference between menstrual phases (p = 0.870); however, HIIE increased BDNF concentration in both menstrual phases (p = 0.030). In addition, the magnitude of circulating BDNF variation (Δ%BDNF) and $$\dot{\text{V}}{{\text{O}}}_{\text{2max}}$$ V ˙ O 2max demonstrated an inverse relationship in the follicular phase (r =  − 0.539, p = 0.046), whereas in the luteal phase, Δ%BDNF was negatively correlated with time test (r =  − 0.684, p = 0.007) and RPE (r =  − 0.726, p = 0.004) in GXT. No differences between menstrual phases were observed for POMS (p ≥ 0.05); however, HIIE attenuated tension (p < 0.01), depression (p < 0.01), and anger moods (p < 0.01), independently of menstrual phases. The subjective scales and Stroop-task test did not show differences. In conclusion, menstrual cycle phase does not affect serum BDNF levels, cognitive function, mood, and exercise enjoyment. Contrary, HIIE increases peripheral BDNF and attenuates tension, depression, and anger independently of menstrual phase. In addition, Δ%BDNF was correlated with physical fitness in the follicular phase, exhibiting higher changes in women with lower physical fitness status.

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