• Corpus ID: 53003561

Fitbit Flex Energy Expenditure and Step Count Evaluation

@article{Montes2017FitbitFE,
  title={Fitbit Flex Energy Expenditure and Step Count Evaluation},
  author={Jeffrey Montes and John C. Young and Richard D. Tandy and James Wilfred Navalta},
  journal={Journal of exercise physiology},
  year={2017},
  volume={20},
  pages={134}
}
Montes J, Young JC, Tandy R, Navalta JW. Fitbit Flex: Energy Expenditure and Step Count Evaluation. JEPonline 2017;20(5):134140. Energy expenditure (EE) and step count (SC) was measured with a Fitbit Flex wrist-worn activity tracker (FWAT) during a two-day walking protocol. Forty-nine volunteers participated on day 1, 46 on day 2, 31 were used for reliability. Participants walked for 3 min at 1.5, 2.5, and 3.5 mph at 0% grade on both days. An Applied Electrochemistry MOXUS Metabolic System (MX… 

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References

SHOWING 1-10 OF 14 REFERENCES

Validity of the Computer Science and Applications, Inc. (CSA) activity monitor.

It is concluded that the CSA and Caltrac accelerometers have similar validity and that either instrument can be used to estimate EE of groups.

Daily activity energy expenditure and mortality among older adults.

Objectively measured free-living activity energy expenditure was strongly associated with lower risk of mortality in healthy older adults and simply expending energy through any activity may influence survival in older adults.

Pedometer accuracy during walking over different surfaces.

Walking on a soft surface such as dry beach sand significantly reduced walking speed and increased pedometer error for females compared with males, possibly by exacerbating hip and walking movements.

Effects of obesity and sex on the energetic cost and preferred speed of walking.

The hypothesis that walking would be most expensive for obese women compared with obese men and normal-weight women and men was tested and it was hypothesized that for all groups, preferred walking speed would correspond to the speed that minimized the gross energy cost per distance.

Increasing daily walking lowers blood pressure in postmenopausal women.

A 24-wk walking program meeting the ACSM-CDC physical activity recommendation is effective in lowering systolic BP in postmenopausal women with borderline to stage 1 hypertension.

Gait speed and survival in older adults.

In this pooled analysis of individual data from 9 selected cohorts, gait speed was associated with survival in older adults and predicted survival was as accurate as predicted based on age, sex, use of mobility aids, and self-reported function.

Challenges and Opportunities for Measuring Physical Activity in Sedentary Adults

The conceptual distinctions between the terms sedentarism, physical inactivity, physical activity and energy expenditure are clarified and the utility of different approaches for quantifying and expressing physical activity in typically sedentary populations are reviewed.

Assessment of physical activity in epidemiologic research: problems and prospects.

Despite the difficulty of measurement, relatively strong association has been found between physical activity and health, suggesting that, with improvements in assessment techniques, even stronger associations should be seen.

Daily step goal of 10,000 steps: a literature review.

This paper provides information based on the Compendium of Physical Activities, to help people to choose their physical activities to supplement their daily steps, through both sports activities and home activities.

ACSM's resources for the health fitness specialist

Exercise Programming Across the Lifespan: Children and Adolescents, Pregnant Women, and Older Adults, and Exercise Programming for Individuals With Musculoskeletal Limitations.