Energy Expenditure of Different Stride Frequencies in Walking and Stair Climbing
2Faculty of Health and Sport Sciences, University of Tsukuba, Japan
3Department of Food and Nutrition, Jumonji University, Japan
Background and Purpose: Many scholars and academic organizations have appealed to people to walk more and make fully use of stair-climbing activities in ordinary life. The objective of this study was to determine energy expenditure of different stride frequencies, providing accurate calorie output when walking and climbing stairs at different stride frequencies.
Subjects and Methods: A total of 15 subjects (8 men, 7 women) with a mean age of 25.33 ± 3.11 years and a mean BMI of 21.35 ± 2.77 kg/m2 participated in a series of experimental trials. The subjects walked and ascended stairs at a slow, medium and fast stride frequency, respectively (70, 100 and 130 bmp for walking and 80, 100 and 120 bpm for ascending stairs). Energy expenditure was measured simultaneously using the CosMed FitMate-2100 portable metabolic device.
Results: Significantly greater energy expenditure was induced at a faster stride frequency in both walking and stair-climbing, and climbing stairs can need more energy expenditure than walking. During walking, the energy expenditure for 3 minutes was 7.89, 10.58 and 15.19 kcal for the slow, medium and fast stride frequency, respectively. During stair-climbing, the energy expenditure for 3 minutes was 22.63, 26.87 and 30.22 kcal for the slow, medium and fast stride frequency, respectively.
Conclusion: We suggest a faster stride frequency strategy to maximize calorie output and increase physical activity when walking or climbing stairs, and using stairs rather than elevators or escalators as much as possible.
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