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Related Experiment Video

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Home-Based Monitor for Gait and Activity Analysis

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Published on: August 8, 2019

Evaluation of the MyWellness Key accelerometer.

S D Herrmann¹, T L Hart, C D Lee

¹Healthy Lifestyles Research Center, Program in Exercise and Wellness, College of Nursing and Health Innovation, Arizona State University, 7350 E. Unity Avenue, Mesa, AZ 85212, USA. stephen.herrmann@asu.edu

British Journal of Sports Medicine

|September 9, 2009

Summary

The Technogym MyWellness Key accelerometer shows strong validity against the ActiGraph accelerometer for measuring physical activity (PA) in both lab and real-world settings. This device accurately tracks light to vigorous PA.

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Area of Science:

Exercise Physiology
Biomedical Engineering
Wearable Technology

Background:

Objective and subjective measures are crucial for assessing physical activity (PA).
Wearable accelerometers offer a promising method for quantifying PA.
Validating new devices against established measures is essential for reliable data collection.

Purpose of the Study:

To evaluate the concurrent validity of the Technogym MyWellness Key accelerometer.
To compare its performance against objective (ActiGraph GT1M, Yamax SW200 Digiwalker, Bouchard Activity cord) and subjective (Global Physical Activity Questionnaire) measures of PA.

Main Methods:

A randomized, cross-sectional study with laboratory and free-living phases.
Participants (n=16) underwent graded treadmill tests and wore devices for seven days.
Spearman rank-order correlation coefficients were used for data analysis.

Main Results:

The MyWellness Key demonstrated strong concurrent validity with the ActiGraph accelerometer (r=0.91 in lab, r=0.73-0.76 in free-living, p<0.01).
No significant associations were found between the MyWellness Key and the Bouchard Activity cord or GPAQ (p>0.05).

Conclusions:

The Technogym MyWellness Key exhibits high concurrent validity with the ActiGraph accelerometer.
It is a reliable tool for detecting physical activity in both controlled and free-living environments.