TY - JOUR
T1 - Feasibility of using a compact elliptical device to increase energy expenditure during sedentary activities
AU - Rovniak, Liza S.
AU - Denlinger, Le Ann
AU - Duveneck, Ellen
AU - Sciamanna, Christopher N.
AU - Kong, Lan
AU - Freivalds, Andris
AU - Ray, Chester A.
N1 - Funding Information:
We thank Charity Sauder, MS, Elizabeth Kiser, BS, and Mouni Reddy, BS for their assistance in conducting this study. This research was funded, in part, by developmental research funds from the Penn State College of Medicine , and by NIH Grant R00HL088017 . The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Heart, Lung, and Blood Institute or the National Institutes of Health. The authors have no financial interest in the company (Stamina Products, Inc.) that manufactures the compact elliptical device investigated in this research, and report no conflicts of interest.
PY - 2014/7
Y1 - 2014/7
N2 - Objectives: This study aimed to evaluate the feasibility of using a compact elliptical device to increase energy expenditure during sedentary activities. A secondary aim was to evaluate if two accelerometers attached to the elliptical device could provide reliable and valid assessments of participants' frequency and duration of elliptical device use. Design: Physically inactive adults (n= 32, age range = 25-65) were recruited through local advertisements and selected using stratified random sampling based on sex, body mass index (BMI), and age. Methods: Indirect calorimetry was used to assess participants' energy expenditure while seated and while using the elliptical device at a self-selected intensity level. Participants also self-reported their interest in using the elliptical device during sedentary activities. Two Actigraph GT3X accelerometers were attached to the elliptical device to record time-use patterns. Results: Participants expended a median of 179.1 kilocalories per hour while using the elliptical device (range = 108.2-269.0), or a median of 87.9 more kilocalories (range = 19.7-178.6) than they would expend per hour of sedentary sitting. Participants reported high interest in using the elliptical device during TV watching and computer work, but relatively low interest in using the device during office meetings. Women reported greater interest in using the elliptical device than men. The two accelerometers recorded identical time-use patterns on the elliptical device and demonstrated concurrent validity with time-stamped computer records. Conclusions: Compact elliptical devices could increase energy expenditure during sedentary activities, and may provide proximal environmental cues for increasing energy expenditure across multiple life domains.
AB - Objectives: This study aimed to evaluate the feasibility of using a compact elliptical device to increase energy expenditure during sedentary activities. A secondary aim was to evaluate if two accelerometers attached to the elliptical device could provide reliable and valid assessments of participants' frequency and duration of elliptical device use. Design: Physically inactive adults (n= 32, age range = 25-65) were recruited through local advertisements and selected using stratified random sampling based on sex, body mass index (BMI), and age. Methods: Indirect calorimetry was used to assess participants' energy expenditure while seated and while using the elliptical device at a self-selected intensity level. Participants also self-reported their interest in using the elliptical device during sedentary activities. Two Actigraph GT3X accelerometers were attached to the elliptical device to record time-use patterns. Results: Participants expended a median of 179.1 kilocalories per hour while using the elliptical device (range = 108.2-269.0), or a median of 87.9 more kilocalories (range = 19.7-178.6) than they would expend per hour of sedentary sitting. Participants reported high interest in using the elliptical device during TV watching and computer work, but relatively low interest in using the device during office meetings. Women reported greater interest in using the elliptical device than men. The two accelerometers recorded identical time-use patterns on the elliptical device and demonstrated concurrent validity with time-stamped computer records. Conclusions: Compact elliptical devices could increase energy expenditure during sedentary activities, and may provide proximal environmental cues for increasing energy expenditure across multiple life domains.
UR - http://www.scopus.com/inward/record.url?scp=84902461044&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902461044&partnerID=8YFLogxK
U2 - 10.1016/j.jsams.2013.07.014
DO - 10.1016/j.jsams.2013.07.014
M3 - Article
C2 - 24035273
AN - SCOPUS:84902461044
SN - 1440-2440
VL - 17
SP - 376
EP - 380
JO - Journal of Science and Medicine in Sport
JF - Journal of Science and Medicine in Sport
IS - 4
ER -