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Int J Sports Med 2007; 28(12): 1025-1029
DOI: 10.1055/s-2007-965077
Training & Testing

© Georg Thieme Verlag KG Stuttgart · New York

Effects of Inspiratory Muscle Training on Exercise Capacity and Spontaneous Physical Activity in Elderly Subjects: a Randomized Controlled Pilot Trial

S. Aznar-Lain1 , A. L. Webster2 , S. Cañete3 , A. F. San Juan3 , L. M. López Mojares3 , M. Pérez3 , A. Lucia3 , J. L. Chicharro4
  • 1Facultad de Ciencias de Deporte, Universidad de Castilla-La Mancha, Toledo, Spain
  • 2Centre for Sport and Exercise Education, Camosun College, Victoria, BC, Canada
  • 3Facultad de Ciencias de Actividad Física y del Deporte, Universidad Europea de Madrid, Madrid, Spain
  • 4Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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Publication History

accepted after revision January 29, 2007

Publication Date:
29 May 2007 (online)

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Abstract

Inspiratory muscle training (IMT) has been shown to improve exercise capacity in diseased populations. We chose to examine the effects of eight weeks of IMT on exercise capacity and spontaneous physical activity in elderly individuals. Eighteen moderately active elderly subjects (68.1 ± 6.8 years [mean ± SD]; range 58 - 78 years) were randomly assigned to either an experimental group (n = 9) or a control group (n = 9) in a double-blind manner. All subjects underwent inspiratory muscle testing, treadmill exercise testing and a four-day measurement period of spontaneous physical activity (using accelerometry) both pre- and post-intervention. The experimental group underwent eight weeks of incremental IMT using a pressure threshold device, while the control group underwent sham training using identical devices. After IMT training, inspiratory muscle strength (mean + 21.5 cm H2O; 95 % CI: 9.3, 33.7; p = 0.002), V·O2peak (+ 2.8 ml · min-1 · kg-1; 95 % CI: 0.5, 5.2; p = 0.022), time to exhaustion during a fixed workload treadmill test (+ 7.1 min; 95 % CI: 1.8, 2.4; p = 0.013) and time engaged in moderate-to-vigorous physical activity (+ 59 min; 95 % CI: 15, 78; p = 0.008) improved. Except for a decline in moderate-to-vigorous physical activity, no significant changes were seen in the control group. Therefore, IMT may be a useful technique for positively influencing exercise capacity and physical activity in elderly individuals.

Key words

respiratory muscles - breathing exercises - aging

References

  • 1 ATS/ERS . Statement on respiratory muscle testing.  Am J Respir Crit Care Med. 2002;  166 518-624
    CrossrefPubMedGoogle Scholar
  • 2 American College of Sports Medicine Position Stand . Exercise and physical activity for older adults.  Med Sci Sports Exerc. 1998;  30 992-1008
    PubMedGoogle Scholar
  • 3 Belman M J, Gaesser G A. Ventilatory muscle training in the elderly.  J Appl Physiol. 1988;  64 899-905
    PubMedGoogle Scholar
  • 4 Dall'Ago P, Chiappa G R, Guths H, Stein R, Ribeiro J P. Inspiratory muscle training in patients with heart failure and inspiratory muscle weakness: a randomized trial.  J Am Coll Cardiol. 2006;  47 757-763
    CrossrefPubMedGoogle Scholar
  • 5 Elizondo-Armendariz J J, Guillen Grima F, Aguinaga Ontoso I. Prevalence of physical activity and its relationship to sociodemographic variables and lifestyles in the age 18 - 65 population of Pamplona, Spain.  Rev Esp Salud Publica. 2005;  79 559-567
    PubMedGoogle Scholar
  • 6 Enright S, Chatham K, Ionescu A A, Unnithan V B, Shale D J. Inspiratory muscle training improves lung function and exercise capacity in adults with cystic fibrosis.  Chest. 2004;  126 405-411
    CrossrefPubMedGoogle Scholar
  • 7 Freedson P S, Melanson E, Sirard J. Calibration of the Computer Science and Applications, Inc. accelerometer.  Med Sci Sports Exerc. 1998;  30 777-781
    CrossrefPubMedGoogle Scholar
  • 8 Fregonezi G A, Resqueti V R, Guell R, Pradas J, Casan P. Effects of 8-week, interval-based inspiratory muscle training and breathing retraining in patients with generalized myasthenia gravis.  Chest. 2005;  128 1524-1530
    CrossrefPubMedGoogle Scholar
  • 9 Geddes E L, Reid W D, Crowe J, O'Brien K, Brooks D. Inspiratory muscle training in adults with chronic obstructive pulmonary disease: a systematic review.  Respir Med. 2005;  99 1440-1458
    CrossrefPubMedGoogle Scholar
  • 10 Gething A D, Passfield L, Davies B. The effects of different inspiratory muscle training intensities on exercising heart rate and perceived exertion.  Eur J Appl Physiol. 2004;  92 50-55
    PubMedGoogle Scholar
  • 11 Gutierrez-Fisac J L, Lopez E, Banegas J R, Graciani A, Rodriguez-Artalejo F. Prevalence of overweight and obesity in elderly people in Spain.  Obes Res. 2004;  12 710-715
    PubMedGoogle Scholar
  • 12 Hanel B, Secher N H. Maximal oxygen uptake and work capacity after inspiratory muscle training: a controlled study.  J Sports Sci. 1991;  9 43-52
    PubMedGoogle Scholar
  • 13 Inbar O, Weiner P, Azgad Y, Rotstein A, Weinstein Y. Specific inspiratory muscle training in well-trained endurance athletes.  Med Sci Sports Exerc. 2000;  32 1233-1237
    PubMedGoogle Scholar
  • 14 Inzelberg R, Peleg N, Nisipeanu P, Magadle R, Carasso R L, Weiner P. Inspiratory muscle training and the perception of dyspnea in Parkinson's disease.  Can J Neurol Sci. 2005;  32 213-217
    PubMedGoogle Scholar
  • 15 Janssens J P. Aging of the respiratory system: impact on pulmonary function tests and adaptation to exertion.  Clin Chest Med. 2005;  26 469-484
    CrossrefPubMedGoogle Scholar
  • 16 Koppers R J, Vos P J, Boot C R, Folgering H T. Exercise performance improves in patients with COPD due to respiratory muscle endurance training.  Chest. 2006;  129 886-892
    CrossrefPubMedGoogle Scholar
  • 17 Laoutaris I, Dritsas A, Brown M D, Manginas A, Alivizatos P A, Cokkinos D V. Inspiratory muscle training using an incremental endurance test alleviates dyspnea and improves functional status in patients with chronic heart failure.  Eur J Cardiovasc Prev Rehabil. 2004;  11 489-496
    CrossrefPubMedGoogle Scholar
  • 18 Lee I M, Paffenbarger Jr R S. Associations of light, moderate, and vigorous intensity physical activity with longevity. The Harvard Alumni Health Study.  Am J Epidemiol. 2000;  151 293-299
    PubMedGoogle Scholar
  • 19 Lerman J, Bruce R A, Sivarajan E, Pettet G E, Trimble S. Low-level dynamic exercises for earlier cardiac rehabilitation: aerobic and hemodynamic responses.  Arch Phys Med Rehabil. 1976;  57 355-360
    PubMedGoogle Scholar
  • 20 Lotters F, van Tol B, Kwakkel G, Gosselink R. Effects of controlled inspiratory muscle training in patients with COPD: a meta-analysis.  Eur Respir J. 2002;  20 570-576
    CrossrefPubMedGoogle Scholar
  • 21 McConnell A K, Lomax M. The influence of inspiratory muscle work history and specific inspiratory muscle training upon human limb muscle fatigue.  J Physiol. 2006;  577 445-457
    CrossrefPubMedGoogle Scholar
  • 22 McConnell A K, Romer L M. Respiratory muscle training in healthy humans: resolving the controversy.  Int J Sports Med. 2004;  25 284-293
    Article in Thieme ConnectPubMedGoogle Scholar
  • 23 Paffenbarger Jr R S, Hyde R T, Wing A L, Lee I M, Jung D L, Kampert J B. The association of changes in physical-activity level and other lifestyle characteristics with mortality among men.  N Engl J Med. 1993;  328 538-545
    CrossrefPubMedGoogle Scholar
  • 24 Paffenbarger Jr R S, Kampert J B, Lee I M, Hyde R T, Leung R W, Wing A L. Changes in physical activity and other lifeway patterns influencing longevity.  Med Sci Sports Exerc. 1994;  26 857-865
    PubMedGoogle Scholar
  • 25 Ramirez-Sarmiento A, Orozco-Levi M, Guell R, Barreiro E, Hernandez N, Mota S, Sangenis M, Broquetas J M, Casan P, Gea J. Inspiratory muscle training in patients with chronic obstructive pulmonary disease: structural adaptation and physiologic outcomes.  Am J Respir Crit Care Med. 2002;  166 1491-1497
    CrossrefPubMedGoogle Scholar
  • 26 Romer L M, Lovering A T, Haverkamp H C, Pegelow D F, Dempsey J A. Effect of inspiratory muscle work on peripheral fatigue of locomotor muscles in healthy humans.  J Physiol. 2006;  571 425-439
    PubMedGoogle Scholar
  • 27 Romer L M, McConnell A K, Jones D A. Effects of inspiratory muscle training on time-trial performance in trained cyclists.  J Sports Sci. 2002;  20 547-562
    CrossrefPubMedGoogle Scholar
  • 28 Romer L M, McConnell A K, Jones D A. Inspiratory muscle fatigue in trained cyclists: effects of inspiratory muscle training.  Med Sci Sports Exerc. 2002;  34 785-792
    CrossrefPubMedGoogle Scholar
  • 29 Sheel A W. Respiratory muscle training in healthy individuals: physiological rationale and implications for exercise performance.  Sports Med. 2002;  32 567-581
    CrossrefPubMedGoogle Scholar
  • 30 Sheel A W, Derchak P A, Morgan B J, Pegelow D F, Jacques A J, Dempsey J A. Fatiguing inspiratory muscle work causes reflex reduction in resting leg blood flow in humans.  J Physiol. 2001;  537 277-289
    CrossrefPubMedGoogle Scholar
  • 31 Spirduso W W. Physical Dimensions of Aging. Champaign, IL; Human Kinetics 1995
    Google Scholar
  • 32 Treuth M S, Schmitz K, Catellier D J, McMurray R G, Murray D M, Almeida M J, Going S, Norman J E, Pate R. Defining accelerometer thresholds for activity intensities in adolescent girls.  Med Sci Sports Exerc. 2004;  36 1259-1266
    PubMedGoogle Scholar
  • 33 Verges S, Lenherr O, Haner A C, Schulz C, Spengler C M. Increased fatigue resistance of respiratory muscles during exercise after respiratory muscle endurance training.  Am J Physiol. 2006;  292 R1246-R1253
    PubMedGoogle Scholar
  • 34 Welk G J, Schaben J A, Morrow Jr J R. Reliability of accelerometry-based activity monitors: a generalizability study.  Med Sci Sports Exerc. 2004;  36 1637-1645
    PubMedGoogle Scholar
  • 35 Wenger H A, Bell G J. The interactions of intensity, frequency and duration of exercise training in altering cardiorespiratory fitness.  Sports Med. 1986;  3 346-356
    CrossrefPubMedGoogle Scholar

Dr. Susana Aznar-Lain

Universidad de Castilla-La Mancha
Facultad de Ciencias de Deporte

Avda. Carlos III s/n

45071 Toledo

Spain

Phone: + 34 925 26 88 00

Fax: + 34 925 26 88 46

Email: susana.aznar@uclm.es

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