Acute effect of inspiratory resistive loading on sprint interval exercise performance in team-sport athletes

2020 ◽  
Vol 282 ◽  
pp. 103531
Author(s):  
Ching-Feng Cheng ◽  
Wei-Chieh Hsu ◽  
Yu-Hsuan Kuo ◽  
Tzu-Wei Chen ◽  
Yu-Chi Kuo
Keyword(s):  
Exercise Performance ◽  
Team Sport ◽  
Acute Effect ◽  
Interval Exercise ◽  
Resistive Loading

The Effects of Compression Garments on Intermittent Exercise Performance and Recovery on Consecutive Days

2008 ◽  
Vol 3 (4) ◽  
pp. 454-468 ◽  
Author(s):  
Rob Duffield ◽  
Johann Edge ◽  
Robert Merrells ◽  
Emma Hawke ◽  
Matt Barnes ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Performance ◽  
High Intensity ◽  
Peak Power ◽  
Muscle Soreness ◽  
Sport Activity ◽  
Team Sport ◽  
Tympanic Temperature ◽  
Exercise Protocol ◽  
Compression Garments

Purpose:The aim of this study was to determine whether compression garments improve intermittent-sprint performance and aid performance or self-reported recovery from high-intensity efforts on consecutive days.Methods:Following familiarization, 14 male rugby players performed two randomized testing conditions (with or without garments) involving consecutive days of a simulated team sport exercise protocol, separated by 24 h of recovery within each condition and 2 weeks between conditions. Each day involved an 80-min high-intensity exercise circuit, with exercise performance determined by repeated 20-m sprints and peak power on a cart dynamometer (single-man scrum machine). Measures of nude mass, heart rate, skin and tympanic temperature, and blood lactate (La−) were recorded throughout each day; also, creatine kinase (CK) and muscle soreness were recorded each day and 48 h following exercise.Results:No differences (P = .20 to 0.40) were present between conditions on either day of the exercise protocol for repeated 20-m sprint efforts or peak power on a cart dynamometer. Heart rate, tympanic temperature, and body mass did not significantly differ between conditions; however, skin temperature was higher under the compression garments. Although no differences (P = .50) in La− or CK were present, participants felt reduced levels of perceived muscle soreness in the ensuing 48 h postexercise when wearing the garments (2.5 ± 1.7 vs 3.5 ± 2.1 for garment and control; P = .01).Conclusions:The use of compression garments did not improve or hamper simulated team-sport activity on consecutive days. Despite benefits of reduced self-reported muscle soreness when wearing garments during and following exercise each day, no improvements in performance or recovery were apparent.

Acute effect of high-intensity interval exercise and moderate-intensity continuous exercise on appetite in overweight/obese males: a pilot study

2017 ◽  
Vol 13 (2) ◽  
pp. 403-410 ◽  
Author(s):  
Victor Araújo Ferreira Matos ◽  
Daniel Costa de Souza ◽  
Rodrigo Alberto Vieira Browne ◽  
Victor Oliveira Albuquerque dos Santos ◽  
Eduardo Caldas Costa ◽  
...  
Keyword(s):  
Pilot Study ◽  
High Intensity ◽  
Acute Effect ◽  
Moderate Intensity ◽  
Interval Exercise ◽  
Continuous Exercise ◽  
High Intensity Interval

Dietary nitrate supplementation improves team sport-specific intense intermittent exercise performance

2013 ◽  
Vol 113 (7) ◽  
pp. 1673-1684 ◽  
Author(s):  
Lee J. Wylie ◽  
Magni Mohr ◽  
Peter Krustrup ◽  
Sarah R. Jackman ◽  
Georgios Ermιdis ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Intermittent Exercise ◽  
Team Sport ◽  
Dietary Nitrate ◽  
Nitrate Supplementation

The Influence of Hot Humid and Hot Dry Environments on Intermittent-Sprint Exercise Performance

2014 ◽  
Vol 9 (3) ◽  
pp. 387-396 ◽  
Author(s):  
Mark Hayes ◽  
Paul C. Castle ◽  
Emma Z. Ross ◽  
Neil S. Maxwell
Keyword(s):  
Heat Stress ◽  
Exercise Performance ◽  
Peak Power ◽  
Team Sport ◽  
Peak Power Output ◽  
Evaporative Heat Loss ◽  
Physiological Strain ◽  
Type Method ◽  
Sprint Exercise ◽  
Full Protocol

Purpose:To examine the effect of a hot humid (HH) compared with a hot dry (HD) environment, matched for heat stress, on intermittent-sprint performance. In comparison with HD, HH environments compromise evaporative heat loss and decrease exercise tolerance. It was hypothesized that HH would produce greater physiological strain and reduce intermittent-sprint exercise performance compared with HD.Method:Eleven male team-sport players completed the cycling intermittent-sprint protocol (CISP) in 3 conditions, temperate (TEMP; 21.2°C ± 1.3°C, 48.6% ± 8.4% relative humidity [rh]), HH (33.7°C ± 0.5°C, 78.2% ± 2.3% rh), and HD (40.2°C ± 0.2°C, 33.1% ± 4.9% rh), with both heat conditions matched for heat stress.Results:All participants completed the CISP in TEMP, but 3 failed to completed the full protocol of 20 sprints in HH and HD. Peak power output declined in all conditions (P < .05) but was not different between any condition (sprints 1–14 [N = 11]: HH 1073 ± 150 W, HD 1104 ± 127 W, TEMP, 1074 ± 134; sprints 15–20 [N = 8]: HH 954 ± 114 W, HD 997 ± 115 W, TEMP 993 ± 94; P > .05). Physiological strain was not significantly different in HH compared with HD, but HH was higher than TEMP (P < .05).Conclusion:Intermittent-sprint exercise performance of 40 min duration is impaired, but it is not different in HH and HD environments matched for heat stress despite evidence of a trend toward greater physiological strain in an HH environment.

Effects of uphill high-intensity interval exercise on muscle damage and exercise performance during recovery

2021 ◽  
Vol 61 (9) ◽  
Author(s):  
Rony FARES ◽  
Miguel Á. RODRÍGUEZ ◽  
Kaissar KAIROUZ ◽  
Germán VICENTE-RODRÍGUEZ ◽  
Hugo OLMEDILLAS
Keyword(s):  
Muscle Damage ◽  
Exercise Performance ◽  
High Intensity ◽  
Interval Exercise ◽  
High Intensity Interval

Oxygen consumption, substrate oxidation, and blood pressure following sprint interval exercise

2013 ◽  
Vol 38 (2) ◽  
pp. 182-187 ◽  
Author(s):  
Huan Hao Chan ◽  
Stephen Francis Burns
Keyword(s):  
Blood Pressure ◽  
Oxygen Consumption ◽  
Blood Pressure Control ◽  
Fat Oxidation ◽  
Pressure Control ◽  
Acute Effect ◽  
Substrate Oxidation ◽  
Cycle Ergometer ◽  
Interval Exercise ◽  
Single Bout

This study examined the acute effect of sprint interval exercise (SIE) on postexercise oxygen consumption, substrate oxidation, and blood pressure. The participants were 10 healthy males aged 21–27 years. Following overnight fasts, each participant undertook 2 trials in a random balanced order: (i) four 30-s bouts of SIE on a cycle ergometer, separated by 4.5 min of recovery, and (ii) resting (control) in the laboratory for an equivalent period. Time-matched measurements of oxygen consumption, respiratory exchange ratio, and blood pressure were made for 2 h into recovery. Total 2-h oxygen consumption was significantly higher in the SIE than in the control trial (mean ± SD: Control: 31.9 ± 6.7 L vs Exercise: 45.5 ± 6.8 L, p < 0.001). The rate of fat oxidation was 75% higher 2 h after the exercise trial compared with the control trial (Control: 0.08 ± 0.05 g·min−1 vs Exercise: 0.14 ± 0.06 g·min−1, p = 0.035). Systolic blood pressure (Control: 117 ± 8 mm Hg vs Exercise: 109 ± 8 mm Hg, p < 0.05) and diastolic blood pressure (Control: 84 ± 6 mm Hg vs Exercise: 77 ± 5 mm Hg, p < 0.05) were significantly lower 2 h after the exercise trial compared with the control trial. These data showed a 42% increase in oxygen consumption (∼13.6 L) over 2 h after a single bout of SIE. Moreover, the rate of fat oxidation increased by 75%, whereas blood pressure was reduced by ∼8 mm Hg 2 h after SIE. Whether these acute benefits of SIE can translate into long-term changes in body composition and an improvement in vascular health needs investigation.

scholarly journals The Impact of Different Exercise Intensities on Vasodilation and Shear Rate Patterns in Children

2019 ◽  
Vol 31 (3) ◽  
pp. 282-289 ◽  
Author(s):  
Ali M. McManus ◽  
Nathan R. Sletten ◽  
Daniel J. Green
Keyword(s):  
Shear Rate ◽  
Femoral Artery ◽  
Superficial Femoral Artery ◽  
Acute Effect ◽  
Moderate Intensity ◽  
Flow Mediated Dilation ◽  
External Work ◽  
Interval Exercise ◽  
High Intensity Interval ◽  
The Impact

Purpose: The effect of exercise intensity on vasodilator function is poorly understood in children. The authors compared the acute effect of high-intensity interval exercise (HIIE) with moderate-intensity steady-state exercise (MISS) on postexercise vasodilation and shear patterns in 7- to 12- year-old children. Methods: Superficial femoral artery diameter, shear rates, and flow-mediated dilation were measured pre, immediately following (post), and 1 hour after (post60) HIIE (six 1-min sprints at 90% peak power [Wmax], with 1-min recovery) and MISS (15 min at 44% Wmax). Results: Baseline superficial femoral artery diameter increased similarly following both HIIE (pre 4.23 [0.41] mm, post 4.73 [0.56] mm) and MISS (pre 4.28 [0.56] mm, post 4.59 [0.64] mm), returning to preexercise values post60. Blood flow and antegrade shear rate were increased post HIIE and MISS, but to a greater extent, post HIIE (P < .05). Retrograde shear rate was attenuated post both exercise conditions and remained post60 (P < .001). There was a decline in flow-mediated dilation postexercise (HIIE Δ −2.9%; MISS Δ −2.4%), which was no longer apparent when corrected for baseline diameter. Conclusion: Acute bouts of external work-matched HIIE or MISS exert a similar impact on shear-mediated conduit artery vasodilation and flow-mediated dilation in children, and this is reversed 1 hour after exercise.

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