Validation of the Intensity of Walking for Pleasure in Obese Adults
Background. Despite evidence that ‘walking for pleasure’ represents the most common leisure-time physical activity, the exercise intensity associated with ‘walking for pleasure’ in the obese has not been established. Methods. Heart rate (HR), perceived exertion (RPE) and walking speed were assessed for 30 obese and 20 non-obese adults as they completed two 2 km-walk tests on alternate days and were compared with a third 2 km walk with subjects walking ‘as fast as possible’. Results. Despite both obese (O) and non-obese (NO) groups rating the intensity of ‘walking for pleasure’ as ‘light’, HR and RPE data for only the NO group complied with definitions of ‘light’ intensity effort. ‘Walking for pleasure’ was characterised by a higher absolute (15 bpm, P < 0.05) and relative (70% of predicted maximum, P < 0.01) HR in the O group, which was representative of the transition between ‘moderate’ and ‘hard’ intensity exercise. The findings in the third, maximal trial were comparable across groups for all variables. Conclusion. Adiposity exerts a relative elevation-of-intensity effect on the cardiovascular system at walking speeds consistent with ‘walking for pleasure’. ‘Walking for pleasure’ is sufficient to improve cardiovascular fitness in obese, but not normal-weight, individuals.
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|Item Type:||Journal Article|
|Additional Information:||For more information, please refer to the journal’s website (see hypertext link) or contact the author.|
|Keywords:||Obesity, Movement, Walking, Exercise, Therapeutics|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Exercise Physiology (110602)|
|Divisions:||Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2006 Elsevier|
|Deposited On:||02 Nov 2007|
|Last Modified:||29 Feb 2012 13:27|
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