Int J Sports Med 2005; 26(9): 781-786
DOI: 10.1055/s-2005-837438
Training & Testing

© Georg Thieme Verlag KG Stuttgart · New York

Improving Aerobic Power in Primary School Boys: A Comparison of Continuous and Interval Training

A. M. McManus1 , C. H. Cheng1 , M. P. Leung2 , T. C. Yung2 , D. J. Macfarlane1
  • 1Institute of Human Performance, University of Hong Kong, Pokfulam, Hong Kong
  • 2Division of Paediatric Cardiology, Grantham Hospital, Wong Chuk Hang, Hong Kong
Further Information

Publication History

Accepted after revision: November 3, 2004

Publication Date:
15 March 2005 (online)

Abstract

The purpose of this study was to assess whether the magnitude of change in aerobic power was different in boys (mean age 10.25 ± 0.50 y) who followed a high-intensity interval training protocol, compared to those who followed a moderate-intensity continuous training protocol. Boys were assigned to either a control group (n = 15), a continuous training group (n = 10), or an interval training group (n = 10). They completed peak oxygen uptake tests at baseline and following an 8-week training period. The control group continued with normal activity habits, whilst the continuous training group followed a 20-minute steady-state cycle protocol at 80 - 85 % of the maximal heart rate, and the interval training group completed 30-s sprints on a cycle ergometer, interspersed with active rest periods. The two training protocols were designed to incur similar cardiovascular work over the 20 minutes of each training session. Significant increases (p < 0.05) in peak oxygen uptake were noted for both the interval and continuous training groups. The interval training group showed marked pre- to post-increases in both peak oxygen pulse, oxygen pulse at the ventilatory threshold, and ventilatory threshold that were not apparent in the continuous group boys. It would appear that a high-intensity interval protocol confers a different training effect in comparison to continuous steady-state training in boys. Possible mechanisms that underpin these adaptations may include increased blood volume and a concomitant adjustment in stroke volume.

References

  • 1 Baquet G, Berthoin S, Dupont G, Blondel N, Fabre C, van Praagh E. Effects of high intensity intermittent training on peak · V·O2 in prepubertal children.  Int J Sports Med. 2002;  23 439-444
  • 2 Baquet G, van Praagh E, Berthoin S. Endurance training and aerobic fitness in young people.  Sports Med. 2003;  33 1127-1143
  • 3 Bar-Or O, Zwiren L. Physiological effects of increased frequency of physical education classes and of endurance conditioning on 9 to 10 year old girls and boys. Bar-or O. Pediatric Work Physiology. Natanya, Israel: Proc 4th Int Symp. 1973: 114-126
  • 4 Berman N, Bailey R, Barstow T, Cooper D. Spectral and bout detection analysis of physical activity patterns in healthy, prepubertal boys and girls.  Am J Hum Biol. 1998;  10 289-297
  • 5 Billat V. Interval training for performance: a scientific and empirical practice: Special recommendations for middle- and long-distance running. Part II: Anaerobic interval training.  Sports Med. 2001;  31 75-90
  • 6 Billat V, Slawinski J, Bocquet V, Demarle A, Lafitte L, Chassaing P, Koralsztein J. Intermittent runs at the velocity associated with maximal oxygen uptake enables subjects to remain at maximal oxygen uptake for a longer time than intense but submaximal runs.  Eur J Appl Physiol. 2000;  81 188-196
  • 7 Branch J D, Pate R R, Bourque S P, Convertino V A, Durstine J L, Ward D S. Effects of exercise mode on hematologic adaptations to endurance training in adult females.  Aviat Space Environ Med. 1997;  68 788-794
  • 8 Carter J, Jeukendrup A. Validity and reliability of three commercially available breath-by-breath respiratory systems.  Eur J Appl Physiol. 2002;  86 435-441
  • 9 Gollnick P, Piehl K, Karlsson J, Saltin B. Glycogen depletion in human skeletal muscle fibres after varying types and intensities of exercise. Howald H, Poortmans JR Metabolic Adaptation to Prolonged Physical Exercise: Proc 2nd Int Sym Biochem Exerc, Magglingen, 1973. Basel; Kirkhauser 1975: 416-421
  • 10 Harmer A, McKenna M, Sutton J, Snow R, Ruell P, Booth J, Thompson M, Mackay N, Stathis C, Cramer R, Carey M, Eager D. Skeletal muscle metabolic and ionic adaptations during intense exercise following sprint training in humans.  J Appl Physiol. 2000;  89 1793-1803
  • 11 Hebestreit H, Staschen B, Hebestreit A. Ventilatory threshold: a useful method to determine aerobic fitness in children?.  Med Sci Sports Exerc. 2000;  32 1964-1969
  • 12 Hickson R C, Bomze H A, Holloszy J O. Linear increase in aerobic power induced by a strenuous program of endurance exercise.  J Appl Physiol. 1977;  42 373-376
  • 13 Kuno S, Takahashi H, Fujimoto K, Akima H, Miyamaru M, Nemoto I, Itai Y. Muscle metabolism during exercise using phosphorus-31 nuclear magnetic resonance spectroscopy in adolescents.  Eur J Appl Physiol. 1995;  70 301-304
  • 14 Laursen P, Jenkins D. The scientific basis for high-intensity interval training: Optimising training programmes and maximising performance in highly trained endurance athletes.  Sports Med. 2002;  32 63-73
  • 15 LeMura L, von Dullivard S, Carlonas R, Andreacci J. Can exercise training improve maximal aerobic power (V·O2max) in children: a meta-analytic review.  J Exerc Physiol. 1999;  2 1-22
  • 16 Leung S, Lau J T, Xu Y Y, Tse L Y, Huen K F, Wong G W, Law W Y, Yeung V T, Yeung W K, Leung N K. Secular changes in standing height, sitting height and sexual maturation of Chinese - the Hong Kong Growth Study, 1993.  Ann Hum Biol. 1996;  23 297-306
  • 17 MacDougall J D, Hicks A L, MacDonald J R, McKelvie R S, Green H J, Smith K M. Muscle performance and enzymatic adaptations to sprint interval training.  J Appl Physiol. 1998;  84 2138-2142
  • 18 Mahon A, Vaccaro P. Ventilatory threshold and V·O2max changes in children following endurance training.  Med Sci Sports Exerc. 1989;  21 425-431
  • 19 Massicotte D, Macnab R. Cardiorespiratory adaptations to training at specified intensities in children.  Med Sci Sports Exerc. 1974;  6 242-246
  • 20 McManus A, Armstrong N, Williams C. Effect of training on the aerobic power and anaerobic performance of prepubertal girls.  Acta Paediatr. 1997;  86 456-459
  • 21 Nottin S, Vinet A, Stecken F, N'Guyen L, Ounissi F, Lecoq A, Obert P. Central and peripheral cardiovascular adaptations to exercise in endurance-trained children.  Acta Physiol Scand. 2002;  175 85-92
  • 22 Obert P, Mandigout S, Nottin S, Vinet A, N'Guyen L, Lecoq A. Cardiovascular responses to endurance training in children: effect of gender.  Eur J Clin Invest. 2003;  33 199-208
  • 23 Obert P, Mandigout S, Vinet A, N'Guyen L, Stecken F, Courteix D. Effect of aerobic training and detraining on left ventricular dimensions and diastolic function in prepubertal boys and girls.  Int J Sports Med. 2001;  22 90-96
  • 24 Poole D, Gaesser G. Response of ventilatory and lactate thresholds to continuous and interval training.  J Appl Physiol. 1985;  58 1115-1121
  • 25 Ratel S, Lazaar N, Williams C, Bedu M, Duche P. Age differences in human skeletal muscle fatigue during high-intensity intermittent exercise.  Acta Paediatr. 2003;  92 1248-1254
  • 26 Rietjens G, Kuipers H, Kester A, Keizer H. Validation of a computerized measurement system (Oxycon-Pro) during low and high intensity exercise.  Int J Sports Med. 2001;  22 291-294
  • 27 Rowland T W. Developmental Exercise Physiology. Champaign, IL; Human Kinetics 1996
  • 28 Stewart K, Gutin B. Effects of training on cardiorespiratory fitness in children.  Res Q Exerc Sport. 1976;  47 110-120
  • 29 Tabata I, Nishimura K, Kouzaki M, Hirai Y, Ogita F, Miyachi M, Yamamoto K. Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and V·O2max.  Med Sci Sports Exerc. 1996;  28 1327-1330
  • 30 Takaishi T, Sugiura T, Katayama K, Sato Y, Shima N, Yamamoto T, Moritani T. Changes in blood volume and oxygenation level in a working muscle during a crank cycle.  Med Sci Sports Exerc. 2002;  33 520-528
  • 31 Wenger H, Bell G. The interaction of intensity, frequency and duration of exercise training in altering cardiorespiratory fitness.  Sports Med. 1986;  3 346-356
  • 32 Williams C, Armstrong N, Powell J. Aerobic responses of prepubertal boys to two modes of training.  Br J Sports Med. 2000;  34 168-173
  • 33 Zanaconanto S, Buchtal S, Barstow T, Cooper D. 31 P - magnetic resonance spectroscopy of leg muscle metabolism during exercise in children and adults.  J Appl Physiol. 1993;  74 2214-2218

A. M. McManus

Institute of Human Performance, University of Hong Kong

Pokfulam Road

Pokfulam

Hong Kong

Phone: + 85225890582

Email: alimac@hku.hk

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