title: Exercise modality and metabolic efficiency in children.
abstract: Current exercise prescription guidelines for children recommend at least 60 min of moderate-to-vigorous physical activity every day. However, little is known about the efficacy of different cardiorespiratory exercise modalities prescribed to the pediatric cohort. Sixteen healthy children (8-12 years) completed 5-min trials of treadmill walking, cycling, and elliptical training in a randomized order. The treadmill walking speed was determined from measurements collected during a self-selected walking trial. The workloads for treadmill walking, cycling, and elliptical training were matched (40.3 W). Mechanical efficiency (ME%), perceived exertion (RPE), oxygen uptake, metabolic equivalents, and net energy expenditure were measured. ME% in walking was significantly higher than in cycling (P = 0.001) and elliptical training (P < 0.001), and cycling was significantly higher than elliptical training (P = 0.003). RPE in walking was significantly lower than in elliptical training (P = 0.006) but not from cycling (P = 0.314), and cycling resulted in significantly lower RPE than elliptical training (P = 0.021).
  
  
  CONCLUSIONS
  Treadmill walking appears to be the most efficacious exercise prescription for otherwise healthy children; however, longitudinal studies need to be implemented to investigate the long-term benefits of each exercise modality.
authors: Department of Medicine, Utrecht University, Utrecht, Netherlands.
authors: Bob G F
authors: BG
authors: Verweij
authors: Lee
authors: L
authors: Stoner
authors: Sarah P
authors: SP
authors: Shultz
mesh_terms: D001642:Bicycling / Q000502:physiology; D002648:Child; D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D055686:Metabolic Equivalent; D010101:Oxygen Consumption; D005082:Physical Exertion; D016138:Walking / Q000502:physiology
references: Obesity (Silver Spring). 2009 Sep;17(9):1749-54
references: 19300433
references: Arch Pediatr Adolesc Med. 2007 May;161(5):473-9
references: 17485624
references: Am J Prev Med. 2011 Aug;41(2):197-206
references: 21767728
references: Med Sci Sports Exerc. 1998 Dec;30(12):1684-92
references: 9861600
references: Nutrition. 1990 May-Jun;6(3):213-21
references: 2136000
references: J Sports Med Phys Fitness. 2003 Sep;43(3):300-5
references: 14625510
references: J Pediatr. 2005 Jun;146(6):732-7
references: 15973308
references: J Sports Sci. 2010 Apr;28(6):573-91
references: 20401789
references: Pediatrics. 2005 Jun;115(6):e690-6
references: 15930197
references: J Sports Sci. 2006 Dec;24(12):1247-64
references: 17101527
references: Med Sci Sports Exerc. 2012 Jun;44(6):1081-7
references: 22143113
references: Phys Ther. 2010 Mar;90(3):367-81
references: 20093327
references: Prev Med. 1993 Mar;22(2):167-77
references: 8483856
references: Health Aff (Millwood). 2010 Mar-Apr;29(3):364-71
references: 20194974
references: Eur J Appl Physiol. 2004 Jan;91(1):30-4
references: 14504944
references: Int J Obes Relat Metab Disord. 1999 Aug;23(8):889-95
references: 10490792
references: Eur J Appl Physiol. 2003 Jan;88(4-5):297-316
references: 12527959
references: Med Sci Sports Exerc. 1992 Nov;24(11):1303-7
references: 1435183
references: Obesity (Silver Spring). 2007 Aug;15(8):1930-2
references: 17712109
references: Int J Behav Nutr Phys Act. 2007 Sep 25;4:44
references: 17894878
references: J Pediatr. 2004 Dec;145(6):731-6
references: 15580192
references: JPEN J Parenter Enteral Nutr. 2009 Nov-Dec;33(6):640-5
references: 19675299
references: Int J Pediatr Obes. 2011 Oct;6(5-6):332-41
references: 21780867
references: Pediatrics. 2007 Nov;120(5):e1262-8
references: 17974719
references: BMC Public Health. 2012 Apr 17;12:284
references: 22510438
references: Prev Med. 2009 Oct;49(4):336-41
references: 19665037
references: Circulation. 2002 Jul 2;106(1):143-60
references: 12093785
references: Pediatr Clin North Am. 2011 Dec;58(6):1481-91, xi-xii
references: 22093864
references: Psychophysiology. 2008 Nov;45(6):977-85
references: 18801015
references: Am J Respir Crit Care Med. 1996 Mar;153(3):976-80
references: 8630582
references: Pediatrics. 1997 Aug;100(2):E5
references: 9233976
references: Clin Respir J. 2009 Jan;3(1):42-50
references: 20298371
references: Obesity (Silver Spring). 2011 May;19(5):1062-8
references: 20885392