Step Counts and Energy Expenditure as Estimated by Pedometry During Treadmill Walking at Different Stride Frequencies

2011 ◽  
Vol 8 (7) ◽  
pp. 1004-1013 ◽  
Author(s):  
Rishann Nielson ◽  
Pat R. Vehrs ◽  
Gilbert W. Fellingham ◽  
Ronald Hager ◽  
Keven A. Prusak
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Treadmill Walking ◽  
Moderate Intensity ◽  
Time Step ◽  
Step Counts ◽  
Moderate Intensity Physical Activity ◽  
Intensity Physical Activity ◽  
Physical Activity Recommendations ◽  
The Relationship

Background:The purposes of this study were to determine the accuracy and reliability of step counts and energy expenditure as estimated by a pedometer during treadmill walking and to clarify the relationship between step counts and current physical activity recommendations.Methods:One hundred males (n = 50) and females (n = 50) walked at stride frequencies (SF) of 80, 90, 100, 110, and 120 steps/min, during which time step counts and energy expenditure were estimated with a Walk4Life Elite pedometer.Results:The pedometer accurately measured step counts at SFs of 100, 110, and 120 steps/min, but not 80 and 90 steps/min. Compared with energy expenditure as measured by a metabolic cart, the pedometer significantly underestimated energy expenditure at 80 steps/min and significantly overestimated measured energy expenditure at 90, 100, 110, and 120 steps/ min.Conclusions:The pedometers’ inability to accurately estimate energy expenditure cannot be attributed to stride length entered into the pedometer or its ability to measure step counts. Males met 3 criteria and females met 2 criteria for moderate-intensity physical activity at SF of 110 to 120 steps/min. These results provide the basis for defining moderate-intensity physical activity based on energy expenditure and step counts and may lead to an appropriate steps/day recommendation.

Energy Expenditure in Vinyasa Yoga Versus Walking

2017 ◽  
Vol 14 (8) ◽  
pp. 597-605 ◽  
Author(s):  
Sally A. Sherman ◽  
Renee J. Rogers ◽  
Kelliann K. Davis ◽  
Ryan L. Minster ◽  
Seth A. Creasy ◽  
...  
Keyword(s):  
Public Health ◽  
Physical Activity ◽  
Energy Expenditure ◽  
Energy Cost ◽  
Vigorous Physical Activity ◽  
Treadmill Walking ◽  
Moderate Intensity ◽  
Moderate Intensity Physical Activity ◽  
Metabolic Equivalents ◽  
Intensity Physical Activity

Background:Whether the energy cost of vinyasa yoga meets the criteria for moderate-to-vigorous physical activity has not been established.Purpose:To compare energy expenditure during acute bouts of vinyasa yoga and 2 walking protocols.Methods:Participants (20 males, 18 females) performed 60-minute sessions of vinyasa yoga (YOGA), treadmill walking at a self-selected brisk pace (SELF), and treadmill walking at a pace that matched the heart rate of the YOGA session (HR-Match). Energy expenditure was assessed via indirect calorimetry.Results:Energy expenditure was significantly lower in YOGA compared with HR-Match (difference = 79.5 ± 44.3 kcal; P < .001) and SELF (difference = 51.7 ± 62.6 kcal; P < .001), but not in SELF compared with HR-Match (difference = 27.8 ± 72.6 kcal; P = .054). A similar pattern was observed for metabolic equivalents (HR-Match = 4.7 ± 0.8, SELF = 4.4 ± 0.7, YOGA = 3.6 ± 0.6; P < .001). Analyses using only the initial 45 minutes from each of the sessions, which excluded the restorative component of YOGA, showed energy expenditure was significantly lower in YOGA compared with HR-Match (difference = 68.0 ± 40.1 kcal; P < .001) but not compared with SELF (difference = 15.1 ± 48.7 kcal; P = .189).Conclusions:YOGA meets the criteria for moderate-intensity physical activity. Thus, YOGA may be a viable form of physical activity to achieve public health guidelines and to elicit health benefits.

scholarly journals Physical activity levels and energy expenditure of 9-year-old – 12-year-old overweight and obese children

2011 ◽  
Vol 16 (1) ◽  
Author(s):  
Chanelle Kemp ◽  
Anita E. Pienaar
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Primary Schools ◽  
Overweight And Obesity ◽  
Moderate Intensity ◽  
Activity Levels ◽  
Obese Children ◽  
Moderate Intensity Physical Activity ◽  
Physical Activity Levels ◽  
Intensity Physical Activity

The high occurrence of overweight and obesity amongst children is a disturbing health problem worldwide. Possible causes of increasing childhood obesity are inactivity and energy imbalances. The aim of this study was to analyse the total energy expenditure (TEE)and physical activity levels in 9-year-old – 12-year-old overweight and obese children during a weekday and a weekend day, as well as during a weekday morning and afternoon. Twenty-four 9-year-old – 12-year-old children (seven boys and 17 girls), of whom nine were overweight and 15 were obese, were selected from seven public primary schools for this study. Body mass index (BMI) cut-off points were used to distinguish between overweight and obese. Each participant wore an ACTICAL™ monitor to determine their physical activity levels and TEE. It was found that the TEE of the children did not differ between a week day and a weekend day, although the TEE of the week day afternoon differed significantly from that of the weekday morning. Unlike the overweight children, none of the obese children met the requirements of 60 minutes of moderate-intensity physical activity per day. Strategies should be found to increase the activity levels of overweight and, especially, obese children, specifically during the mornings and over weekends.OpsommingDie hoë voorkoms van oorgewig en obesiteit onder kinders is wêreldwyd ’n kommerwekkende gesondheidsprobleem. Fisieke onaktiwiteit en energiewanbalanse word as moontlike oorsake van die probleem beskou. Die doel van hierdie studie was om die totale energieverbruik (TEV) en fisieke-aktiwiteitsvlakke van 9-jarige – 12-jarige oorgewig- en obese kinders tydens ‘n totale weeksdag en naweekdag te ontleed, asook tydens die oggend en middag van ‘n weeksdag. Vier-en-twintig 9-jarige – 12-jarige kinders (sewe seuns en 17 dogters), waarvan nege oorgewig en 15 obees was, is uit sewe publieke laerskole vir die studie gekies. Afsnypunte volgens die liggaamsmassa-indeks (LMI) is gebruik om tussen oorgewig en obees te onderskei. Elke deelnemer het ‘n ACTICAL™ monitor gedra om hul fisieke-aktiwiteitsvlakke en TEV te bepaal. Die studie het getoon dat die TEV van die kinders op ’n weeksdag en naweekdag nie verskil het nie, alhoewel TEV tydens die middag van die weeksdag betekenisvol verskil het van die oggend s’n. Anders as die oorgewig kinders, het geen van die obese kinders aan die voorgestelde riglyn van 60 minute se matig intensiewe fisieke aktiwiteit per dag voldoen nie. Strategieë moet gevind word om die vlakke van aktiwiteit van oorgewig en veral obese kinders te verhoog, spesifiek gedurende die oggende en oor naweke.

A Steps/Minute Value for Moderate Intensity Physical Activity in Adolescent Females

2012 ◽  
Vol 24 (3) ◽  
pp. 399-408 ◽  
Author(s):  
Deirdre M. Harrington ◽  
Kieran P. Dowd ◽  
Catrine Tudor-Locke ◽  
Alan E. Donnelly
Keyword(s):  
Physical Activity ◽  
Mixed Model ◽  
Adolescent Females ◽  
Moderate Intensity ◽  
Moderate Intensity Physical Activity ◽  
Metabolic Equivalents ◽  
Intensity Physical Activity ◽  
Analytical Approaches ◽  
The Relationship ◽  
Over Ground Walking

The number of steps/minute (i.e., cadence) that equates to moderate intensity in adolescents is not known. To that end, 31 adolescent females walked on a treadmill at 5 different speeds while wearing an ActivPAL accelerometer and oxygen uptake was recorded by indirect calorimetry. The relationship between metabolic equivalents (METs) and cadence was explored using 3 different analytical approaches. Cadence was a significant predictor of METs (r=.70; p<.001). Moderate intensity (3 METs) corresponded to 94 or 114 steps/minute based on the mixed model and ROC analysis, respectively. These two values, and a practical value of 100 steps/minute, were cross-validated on an independent sample of 33 adolescent females during over-ground walking at 3 speeds. The sensitivity and specificity of each value correctly identifying 3 METs were 98.5% and 87.2% for 94 steps/minute, 72.9% and 98.8 for 114 steps/minute and 96.5% and 95.7% for 100 steps/minute. Compromising on a single cadence of 100 steps/minute would be a practical value that approximates moderate intensity in adolescent females and can be used for physical activity interpretation and promotion.

scholarly journals Do Motion Controllers Make Action Video Games Less Sedentary? A Randomized Experiment

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Elizabeth J. Lyons ◽  
Deborah F. Tate ◽  
Dianne S. Ward ◽  
Kurt M. Ribisl ◽  
J. Michael Bowling ◽  
...  
Keyword(s):  
Physical Activity ◽  
Video Games ◽  
Energy Expenditure ◽  
Motion Control ◽  
Moderate Intensity ◽  
Randomized Experiment ◽  
Moderate Intensity Physical Activity ◽  
Main Effect ◽  
Action Video Games ◽  
Intensity Physical Activity

Sports- and fitness-themed video games using motion controllers have been found to produce physical activity. It is possible that motion controllers may also enhance energy expenditure when applied to more sedentary games such as action games. Young adults (N= 100) were randomized to play three games using either motion-based or traditional controllers. No main effect was found for controller or game pair (P> .12). An interaction was found such that in one pair, motion control (mean [SD] 0.96 [0.20] kcal ⋅ kg-1⋅ hr-1) produced 0.10 kcal ⋅ kg-1⋅ hr-1(95% confidence interval 0.03 to 0.17) greater energy expenditure than traditional control (0.86 [0.17] kcal ⋅ kg-1⋅ hr-1,P= .048). All games were sedentary. As currently implemented, motion control is unlikely to produce moderate intensity physical activity in action games. However, some games produce small but significant increases in energy expenditure, which may benefit health by decreasing sedentary behavior.

Fluctuations in Self-Reported Symptoms Predict Objective Physical Activity in Adults With Type 2 Diabetes

2021 ◽  
pp. 263501062110158
Author(s):  
Bingqian Zhu ◽  
Pei Chen ◽  
Min Jung Kim ◽  
Xiangfang Chen ◽  
Laurie Quinn ◽  
...  
Keyword(s):  
Physical Activity ◽  
Type 2 Diabetes ◽  
Energy Expenditure ◽  
Moderate Intensity ◽  
Individual Level ◽  
Moderate Intensity Physical Activity ◽  
Intensity Physical Activity ◽  
The Individual ◽  
Restorative Sleep

Purpose The purpose of this study was to examine the association between self-reported symptoms including fatigue and sleep disturbance with moderate-intensity physical activity among adults with type 2 diabetes. Methods This report was a secondary analysis of a cross-sectional study. Data from 53 participants with at least 6 days of repeated measures were used. Daytime physical activity and energy expenditure were assessed using a wrist-worn accelerometer at the free-living setting. Fatigue upon awakening was measured using a 0 to 10 scale. Sleep (eg, restorative sleep, sleep duration, and sleep efficiency) was measured using the Consensus Sleep Diary for Morning. Data were analyzed using linear mixed models by including within- and between-person effects. Results Participants were predominantly females (54.7%) with a mean age of 60.3 years. Controlling for the covariates, at the individual level (within-person), fluctuations in restorative sleep and fatigue upon awakening predicted moderate-intensity PA. Similarly, at the individual level, fluctuations in restorative sleep and fatigue upon awakening predicted average hourly energy expenditure. However, at the group level (between-person), no significant associations were found between fatigue and restorative sleep with moderate-intensity physical activity. Conclusions The study findings suggest that within-person fluctuations in fatigue and restorative sleep upon awakening predict daytime moderate-intensity physical activity. At the individual level, reducing fluctuations in fatigue and restorative sleep might encourage participation in physical activity. More research is warranted to uncover the underlying causes of fluctuations in fatigue and restorative sleep. Meanwhile, diabetes care and education specialists should pay attention to the within-person fluctuations of fatigue and sleep.

scholarly journals Interaction of physical activity and diet: implications for haemostatic factors

1999 ◽  
Vol 2 (3a) ◽  
pp. 383-390 ◽  
Author(s):  
Rainer Rauramaa ◽  
SB Väisänen
Keyword(s):  
Physical Activity ◽  
Blood Coagulation ◽  
Lifestyle Changes ◽  
Regular Physical Activity ◽  
Moderate Intensity ◽  
Moderate Physical Activity ◽  
Platelet Aggregability ◽  
Moderate Intensity Physical Activity ◽  
Intensity Physical Activity ◽  
The Impact

AbstractRegular moderate intensity physical activity and habitual diet providing no more than one third of energy from fats have been recommended for the prevention of atherosclerotic diseases. The background for these guidelines is the key role of plasma lipids. However, the importance of thrombogenesis in acute myocardial infarction has become obvious during the last decade. Hyperlipidaemia and excess of adipose tissue increase platelet aggregability and blood coagulation, and decrease fibrinolysis. Both regular physical activity and dietary fat reduction decrease blood lipids and body fat thereby diminishing the risk of thrombosis. Currently, data on interactions between physical activity and diet on haemostasis are scarce, and the few studies available have not demonstrated additional effects when these two lifestyle modifications have been combined. This paper is restricted only to studies using controlled randomized design. Regular moderate intensity physical activity as well as diet rich in omega-3 fatty acids decrease platelet aggregability. The effects of regular physical activity on plasma fibrinogen remain contradictory, while the impact of diet is even less clear. Plasminogen activator inhibitor-1, a possible link between insulin resistance syndrome and coronary heart disease, may decrease due to physical training or low fat diet. It can be hypothesized that moderation in physical activity and diet carries a more powerful impact on blood coagulation and fibrinolysis than either lifestyle modification alone. Studies focusing on the interactions of regular moderate physical activity and fat-modified diet are needed in efforts to optimize the preventive actions by lifestyle changes.

Use of Active Video Games to Increase Physical Activity in Children: A (Virtual) Reality?

2010 ◽  
Vol 22 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Louise Foley ◽  
Ralph Maddison
Keyword(s):  
Physical Activity ◽  
Video Games ◽  
Energy Expenditure ◽  
Physical Activity Behavior ◽  
Moderate Intensity ◽  
Bibliographic Databases ◽  
Future Research ◽  
Moderate Intensity Physical Activity ◽  
Active Video Games ◽  
Active Video

There has been increased research interest in the use of active video games (in which players physically interact with images onscreen) as a means to promote physical activity in children. The aim of this review was to assess active video games as a means of increasing energy expenditure and physical activity behavior in children. Studies were obtained from computerised searches of multiple electronic bibliographic databases. The last search was conducted in December 2008. Eleven studies focused on the quantification of the energy cost associated with playing active video games, and eight studies focused on the utility of active video games as an intervention to increase physical activity in children. Compared with traditional nonactive video games, active video games elicited greater energy expenditure, which was similar in intensity to mild to moderate intensity physical activity. The intervention studies indicate that active video games may have the potential to increase free-living physical activity and improve body composition in children; however, methodological limitations prevent definitive conclusions. Future research should focus on larger, methodologically sound intervention trials to provide definitive answers as to whether this technology is effective in promoting long-term physical activity in children.

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