Reliability and Validity of the Kinect-Based Mixed Reality Device: Pilot Study

So-Young Ahn; Yun-Ho Sung; Jun-Hyun Bae; Byung-Gul Lim; Wook Song

doi:10.15758/ajk.2022.24.2.2

The Asian Journal of Kinesiology (Apr 2022)

Reliability and Validity of the Kinect-Based Mixed Reality Device: Pilot Study

So-Young Ahn,
Yun-Ho Sung,
Jun-Hyun Bae,
Byung-Gul Lim,
Wook Song

Affiliations

So-Young Ahn: Health and Exercise Science Laboratory, Institute of Sport Science, Department of Physical Education, Seoul National University, Seoul, Republic of Korea
Yun-Ho Sung: Health and Exercise Science Laboratory, Institute of Sport Science, Department of Physical Education, Seoul National University, Seoul, Republic of Korea
Jun-Hyun Bae: Health and Exercise Science Laboratory, Institute of Sport Science, Department of Physical Education, Seoul National University, Seoul, Republic of Korea
Byung-Gul Lim: Health and Exercise Science Laboratory, Institute of Sport Science, Department of Physical Education, Seoul National University, Seoul, Republic of Korea
Wook Song: Health and Exercise Science Laboratory, Institute of Sport Science, Department of Physical Education, Seoul National University, Seoul, Republic of Korea

DOI: https://doi.org/10.15758/ajk.2022.24.2.2
Journal volume & issue: Vol. 24, no. 2
pp. 2 – 11

Abstract

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OBJECTIVES Firefighter (FF) is an occupation which needs high fitness abilities. However, most of Korean FFs in the capital city have relatively low fitness levels and they have difficulty participating in exercises owing to their emergency environments. Kinect-based mixed reality device (KMR) is a device that can deliver exercises with live visual feedbacks by detecting motions at any time while needing few human resources. Therefore, KMR could be an adequate tool for FFs to provide exercise. However, there are no studies that identified the reliability and validity. So, the purpose of this study is to evaluate the reliability and validity of KMR and the intensity of the fitness program for relatively low-fit FFs. METHODS Using a test-retest design, five male participants underwent three trials with 1wk washouts. The participants underwent 1 screening and 2 workout sessions. The fitness program using KMR last approximately 25 min. Intensity was measured using the heart rate (HR), rated perceived exertion (RPE), and finger-tip lactate. HR and RPE were measured before, during, and after the exercise using the Polar watch and Borg scale. Finger-tip lactate were measured before and after the exercise using Lactate Pro2. Cronbach alpha and Pearson correlation were determined for reliability and validity based on the HR and RPE. RESULTS Excellent reliability (Cronbach alpha: 0.967, 0.969) and strong correlation (r = .525 – .814, .718 – .958; very large) were observed with regard to the HR and RPE. Additionally, HR, RPE, and post-workout lactate showed a moderate-to-high intensity response in exercise program. Conclusions The results suggest that KMR is a reliable and validate device to provide fitness programs and the fitness program designed for relatively low-fit FFs showed a “moderate-to-high” intensity response, which is an adequate physiological response for relatively low-fit Korean FFs.

Published in The Asian Journal of Kinesiology

ISSN: 2586-5595 (Print); 2586-5552 (Online)
Publisher: Asian Society of Kinesiology
Country of publisher: Korea, Republic of
LCC subjects: Geography. Anthropology. Recreation: Recreation. Leisure: Sports; Science: Physiology
Website: http://ajkinesiol.org/

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