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Journal ArticleDOI

Aerobic high-intensity intervals improve VO2max more than moderate training.

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TLDR
High-aerobic intensity endurance interval training is significantly more effective than performing the same total work at either lactate threshold or at 70% HRmax, in improving VO2max.
Abstract
HELGERUD, J., K. HKYDAL, E. WANG, T. KARLSEN, P. BERG, M. BJERKAAS, T. SIMONSEN, C. HELGESEN, N. HJORTH, R. BACH, and J. HOFF. Aerobic High-Intensity Intervals Improve VO2max More Than Moderate Training. Med. Sci. Sports Exerc., Vol. 39, No. 4, pp. 665-671, 2007. Purpose: The present study compared the effects of aerobic endurance training at different intensities and with different methods matched for total work and frequency. Responses in maximal oxygen uptake (VO2max), stroke volume of the heart (SV), blood volume, lactate threshold (LT), and running economy (CR) were examined. Methods: Forty healthy, nonsmoking, moderately trained male subjects were randomly assigned to one of four groups:1) long slow distance (70% maximal heart rate; HRmax); 2) lactate threshold (85% HRmax); 3) 15/15 interval running (15 s of running at 90-95% HRmax followed by 15 s of active resting at 70% HRmax); and 4) 4 4 min of interval running (4 min of running at 90-95% HRmax followed by 3 min of active restingat 70% HRmax). All four training protocols resulted in similar total oxygen consumption and were performed 3 dIwk j1 for 8 wk. Results: High-intensity aerobic interval training resulted in significantly increased VO2max compared with long slow distanceandlactate-thresholdtrainingintensities(P G 0.01). The percentage increases for the 15/15 and 4 4 min groups were 5.5 and 7.2%, respectively, reflecting increases in VO2max from 60.5 to 64.4 mLIkg j1 Imin j1 and 55.5 to 60.4 mLIkg j1 Imin j1 . SV increased significantly by approximately 10% after interval training (P G 0.05). Conclusions: High-aerobic intensity endurance interval training is significantly more effective than performing the same total work at either lactate threshold or at 70% HRmax, in improving VO2max. The changes in VO2max correspond with changes in SV, indicating a close link between the two. Key Words: LACTATE THRESHOLD, AEROBIC POWER, 4 4-MIN INTERVALS, 15/15 TRAINING, STROKE VOLUME, BLOOD VOLUME

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Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory, Musculoskeletal, and Neuromotor Fitness in Apparently Healthy Adults: Guidance for Prescribing Exercise

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Importance of Assessing Cardiorespiratory Fitness in Clinical Practice: A Case for Fitness as a Clinical Vital Sign: A Scientific Statement From the American Heart Association.

TL;DR: The addition of CRF for risk classification presents health professionals with unique opportunities to improve patient management and to encourage lifestyle-based strategies designed to reduce cardiovascular risk to meet the American Heart Association’s 2020 goals.
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High-intensity interval training, solutions to the programming puzzle: Part I: cardiopulmonary emphasis.

TL;DR: The different aspects of HIT programming are discussed, from work/relief interval manipulation to the selection of exercise mode, using different examples of training cycles from different sports, with continued reference to T@$$ \dot{V} $$O2max and cardiovascular responses.
References
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Textbook of Work Physiology

TL;DR: Find loads of the textbook of work physiology book catalogues in this site as the choice of you visiting this page.
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Aerobic endurance training improves soccer performance

TL;DR: Enhanced aerobic endurance in soccer players improved soccer performance by increasing the distance covered, enhancing work intensity, and increasing the number of sprints and involvements with the ball during a match.
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High intensity aerobic interval exercise is superior to moderate intensity exercise for increasing aerobic capacity in patients with coronary artery disease.

TL;DR: High intensity aerobic interval exercise is superior to moderate exercise for increasing VO2peak in stable CAD-patients, and may be useful in designing effective training programmes for improved health in the future.
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The interactions of intensity, frequency and duration of exercise training in altering cardiorespiratory fitness

TL;DR: Although these pooled data suggest that maximal gains in aerobic power are elicited with intensities between 90 to 100% V̇O2 max, 4 times per week with exercise durations of 35 to 45 minutes, it is important to note that lower intensities still produce effective changes and reduce the risks of injury in non-athletic groups.
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Regulation of stroke volume during submaximal and maximal upright exercise in normal man.

TL;DR: The mechanism by which left ventricular stroke volume increases during upright exercise in man is dependent upon the changing relationship between heart rate,Left ventricular filling, and left vent cardiac contractility, and endsystolic volume index.
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How to improve vo2max on running?

To improve VO2max in running, high-intensity aerobic interval training is more effective than moderate training.