Muscle changes with high-intensity aerobic training in an animal model of renal disease

Purpose:To examine the effect of low-volume sprint interval training (SIT) on the development (part 1) and subsequent maintenance (part 2) of aerobic fitness in soccer players.Methods:In part 1, 23 players from the same semiprofessional team participated in a 2-wk SIT intervention (SIT, n = 14, age 25 ± 4 y, weight 77 ± 8 kg; control, n = 9, age 27 ± 6 y, weight 72 ± 10 kg). The SIT group performed 6 training sessions of 4–6 maximal 30-s sprints, in replacement of regular aerobic training. The control group continued with their regular training. After this 2-wk intervention, the SIT group was allocated to either intervention (n = 7, 1 SIT session/wk as replacement of regular aerobic training) or control (n = 7, regular aerobic training with no SIT sessions) for a 5-wk period (part 2). Pre and post measures were the YoYo Intermittent Recovery Test Level 1 (YYIRL1) and maximal oxygen uptake (VO2max).Results:In part 1, the 2-week SIT intervention had a small beneficial effect on YYIRL1 (17%; 90% confidence limits ±11%), and VO2max (3.1%; ±5.0%) compared with control. In part 2, 1 SIT session/wk for 5 wk had a small beneficial effect on VO2max (4.2%; ±3.0%), with an unclear effect on YYIRL1 (8%; ±16%).Conclusion:Two weeks of SIT elicits small improvements in soccer players’ high-intensity intermittent-running performance and VO2max, therefore representing a worthwhile replacement of regular aerobic training. The effectiveness of SIT for maintaining SIT-induced improvements in high-intensity intermittent running requires further research.

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Cardiac Adaptations to High‐Intensity Aerobic Training in Premenopausal and Recent Postmenopausal Women: The Copenhagen Women Study

Journal of the American Heart Association ◽

10.1161/jaha.117.005469 ◽

2017 ◽

Vol 6 (8) ◽

Cited By ~ 5

Author(s):

Jon Egelund ◽

Peter G. Jørgensen ◽

Camilla M. Mandrup ◽

Thomas Fritz‐Hansen ◽

Bente Stallknecht ◽

...

Keyword(s):

Postmenopausal Women ◽

High Intensity ◽

Aerobic Training

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The acute effect of high intensity aerobic training on ANP and Endothelin-1 in obese women

International Journal of Applied Exercise Physiology ◽

10.22631/ijaep.v6i1.97 ◽

2017 ◽

Vol 6 (1) ◽

pp. 49-54

Author(s):

Rouhollah Haghshenas ◽

Samaneh Nazemian ◽

Mohsen Ebrahimi

Keyword(s):

High Intensity ◽

Aerobic Training ◽

Acute Effect ◽

Obese Women ◽

Obese People ◽

Endothelin 1 ◽

Beneficial Effects ◽

Significant Difference ◽

Before And After ◽

And Control

The purpose of this study was to investigate the effect of acute high intensity aerobic training on ANP and Endothelin-1 in inactive obese women. In order to nineteen obese women mean age± SD: 27.94± 3.30, mean weight ±SD: 88.13 ±7.28, mean height ±SD: 163.00± 4.91, mean BMI ±SD: 32.96± 3.13 selected and were randomly allocated to experimental and control groups. Experimental group performed a session acute aerobic exercise on ergometer at intensity 25w that increased every two minute 25w to workload and performed to exhaustion every subject. Samples blood were taken after 12 hours fasting, before and after of program training. For analyzed of biochemical variables used ELISA method and for analyses data used ANOVA. Results of this study showed that acute aerobic training causes significant increase in level of plasma ANP in obese women (p=0.006). But no significant differences observe in plasma level of Endothelin-1. Also, any significant difference didn’t observe between pre and post-training values, were separately compared data in each group. Finally, according to results of this study, acute aerobic training causes of the direct relationship between obesity and hypertension and cardiovascular disease probably beneficial effects of physical activity in obese people is due to change in these indicators.

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3P-0651 Influence of low and high intensity aerobic training on skeletal muscle capillarization

Atherosclerosis Supplements ◽

10.1016/s1567-5688(03)90871-3 ◽

2003 ◽

Vol 4 (2) ◽

pp. 205

Author(s):

N. Shono ◽

T. Matsubara ◽

M. Otonari ◽

K. Murakami ◽

M. Shindo ◽

...

Keyword(s):

Skeletal Muscle ◽

High Intensity ◽

Aerobic Training

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Reduced submaximal leg blood flow after high-intensity aerobic training

Journal of Applied Physiology ◽

10.1152/jappl.2001.91.6.2619 ◽

2001 ◽

Vol 91 (6) ◽

pp. 2619-2627 ◽

Cited By ~ 37

Author(s):

David N. Proctor ◽

Jordan D. Miller ◽

Niki M. Dietz ◽

Christopher T. Minson ◽

Michael J. Joyner

Keyword(s):

Blood Flow ◽

Cardiac Output ◽

Power Output ◽

High Intensity ◽

Aerobic Training ◽

Muscle Blood Flow ◽

Splanchnic Blood Flow ◽

Active Muscle ◽

Leg Blood Flow ◽

Power Outputs

This study evaluated the hypothesis that active muscle blood flow is lower during exercise at a given submaximal power output after aerobic conditioning as a result of unchanged cardiac output and blunted splanchnic vasoconstriction. Eight untrained subjects (4 men, 4 women, 23–31 yr) performed high-intensity aerobic training for 9–12 wk. Leg blood flow (femoral vein thermodilution), splanchnic blood flow (indocyanine green clearance), cardiac output (acetylene rebreathing), whole body O2 uptake (V˙o 2), and arterial-venous blood gases were measured before and after training at identical submaximal power outputs (70 and 140 W; upright 2-leg cycling). Training increased ( P < 0.05) peak V˙o 2(12–36%) but did not significantly change submaximalV˙o 2 or cardiac output. Leg blood flow during both submaximal power outputs averaged 18% lower after training ( P = 0.001; n = 7), but these reductions were not correlated with changes in splanchnic vasoconstriction. Submaximal leg V˙o 2 was also lower after training. These findings support the hypothesis that aerobic training reduces active muscle blood flow at a given submaximal power output. However, changes in leg and splanchnic blood flow resulting from high-intensity training may not be causally linked.

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Controlled 5-mo aerobic training improves heart rate but not heart rate variability or baroreflex sensitivity

Journal of Applied Physiology ◽

10.1152/jappl.2000.89.5.1825 ◽

2000 ◽

Vol 89 (5) ◽

pp. 1825-1829 ◽

Cited By ~ 98

Author(s):

Antti Loimaala ◽

Heikki Huikuri ◽

Pekka Oja ◽

Matti Pasanen ◽

Ilkka Vuori

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Exercise Training ◽

High Intensity ◽

Baroreflex Sensitivity ◽

Aerobic Training ◽

Control Group ◽

Resting Heart Rate ◽

Endurance Time ◽

Low Intensity

Endurance-trained athletes have increased heart rate variability (HRV), but it is not known whether exercise training improves the HRV and baroreflex sensitivity (BRS) in sedentary persons. We compared the effects of low- and high-intensity endurance training on resting heart rate, HRV, and BRS. The maximal oxygen uptake and endurance time increased significantly in the high-intensity group compared with the control group. Heart rate did not change significantly in the low-intensity group but decreased significantly in the high-intensity group (−6 beats/min, 95% confidence interval; −10 to −1 beats/min, exercise vs. control). No significant changes occurred in either the time or frequency domain measures of HRV or BRS in either of the exercise groups. Exercise training was not able to modify the cardiac vagal outflow in sedentary, middle-aged persons.

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