How accurate are the wrist-based heart rate monitors during walking and running activities? Are they accurate enough?

SE Stahl, HS An, DM Dinkel… - BMJ open sport & …, 2016 - bmjopensem.bmj.com
Background Heart rate (HR) monitors are valuable devices for fitness-orientated individuals.
There has been a vast influx of optical sensing blood flow monitors claiming to provide …

How valid are wearable physical activity trackers for measuring steps?

HS An, GC Jones, SK Kang, GJ Welk… - European journal of …, 2017 - Taylor & Francis
Wearable activity trackers have become popular for tracking individual's daily physical
activity, but little information is available to substantiate the validity of these devices in step …

Concurrent validity of wearable activity trackers under free-living conditions

SM Brooke, HS An, SK Kang, JM Noble… - The Journal of …, 2017 - journals.lww.com
Abstract Brooke, SM, An, HS, Kang, SK, Noble, JM, Berg, KE, and Lee, JM. Concurrent
validity of wearable activity trackers under free-living conditions. J Strength Cond Res 31 (4) …

Accuracy of inclinometer functions of the activPAL and ActiGraph GT3X+: A focus on physical activity

HS An, Y Kim, JM Lee - Gait & posture, 2017 - Elsevier
Purpose The purpose of the study was to examine the accuracy of inclinometer functions of
the ActiGraph GT3X+ (AG)(worn on the waist and wrist) and the activPAL (AP) in assessing …

[PDF][PDF] Examining the Validity of Fitbit Charge HR TM for Measuring Heart Rate in Free-Living Conditions

JM Lee, HS An, SK Kang, Y Kim - 2016 - digitalcommons.unomaha.edu
Optical blood flow sensors (ie photoplethysmographic techniques) have recently been
utilized in wearable activity trackers. The Fitbit Charge HRTM (FBHR) is one of the widely …

Experiment of single-phase grid connected battery charger

HS An, W Lee, BH Mun, IK Park, SY Jung… - The Transactions of …, 2013 - koreascience.kr
This paper explains control methods of single-phase grid connected battery charger.
Charging mode is control by Constant Current-Constant Voltage method and discharging …

[PDF][PDF] Review INDUCTION OF VASODILATION BY HYDRO-GEN PEROXIDE AND ITS APPLICATION IN EXERCISE SCIENCE

DJ Sung, WY So, HY Ryu, HS An, KS Cha - Biology of Sport, 2014 - termedia.pl
While much research has recently been focussing on the chronic effects of overtraining, the
acute damaging effects of individual eccentric exercise bouts on muscle remain of interest …

[PDF][PDF] How Accurate Are Wearable Activity Trackers For Measuring Steps?

JM Lee, G Jones, HS An, J Kim, DM Dinkel - 2015 - digitalcommons.unomaha.edu
Wearable activity trackers have become popular for tracking individual's daily physical
activity, but little or no information is available to substantiate the validity of these devices in …

[PDF][PDF] Validity of the iHealth-BP7 and Withings-BP800 Self Measurement Blood Pressure Monitor

HS An, M Bubak, DM Dinkel, D Slivka, JM Lee - 2015 - digitalcommons.unomaha.edu
PURPOSE: The purpose of this study is to validate the iHealth-BP7 and Withings-BP800
monitors according to the European Society of Hypertension (ESH) International Protocol …

[PDF][PDF] Reliability of DEXA on Body Composition in Korean Athletes

HS An, HS Gwak, SK Kang, JM Lee - 2016 - digitalcommons.unomaha.edu
PURPOSE: The purpose of this study was to assess the reliability of DEXA for measuring
body composition in Korean Athletes. METHODS: Twenty-nine athletes (n= 29) registered …