Positive-word stimuli via a smartphone application have no immediate-term effects on multi-directional reach ability in standing position: a randomized controlled trial

Kenta Azukizawa, Kodai Hirose, Yuta Morigami, Naoki Higashi, Hiroyuki Uchida, Kazuki Hirao, Kenta Azukizawa, Kodai Hirose, Yuta Morigami, Naoki Higashi, Hiroyuki Uchida, Kazuki Hirao

Abstract

Objectives: The purpose of the study was to examine the immediate-term effect of positive-word stimuli via a smartphone application on the multi-directional reach ability in standing position in young adults.

Methods: This study was an immediate-term, assessor-blinded, two-arm, parallel-group, randomized controlled trial among young adults recruited from one university in Japan. Participants were randomly assigned to the experimental group or control group using a computer-based random number-generating programme. Participants of the experimental group used an application on iPhone and watched 3-min videos displaying positive-word stimuli. This application repeatedly displayed positive-word stimuli every 5 s. The participants of the control group used an application on iPhone and watched the same videos as in the experimental group. However, a positive-word stimulus did not appear in the videos. The primary outcome was the multi-directional reach test (MDRT) from baseline to immediately after the intervention protocol.

Results: Among the 62 randomized participants (experimental group, n = 31; control group, n = 31), 62 (100%) completed the MDRT immediately after the intervention protocol. There were no differences in mean group change values in MDRT between the experimental and control groups.

Conclusions: Among young adults, positive-word stimuli via a smartphone application did not significantly improve multi-directional reach ability in standing position. These findings do not support the superiority of this intervention among young adults. Trial Registration: Clinicaltrials.gov, NCT03546218. Registered 6 June 2018, https://ichgcp.net/clinical-trials-registry/NCT03546218KEY MESSAGESIn our study, among young adults, positive-word stimuli via an SPSRS application did not significantly improve the multi-directional reach ability in the standing position.These findings do not support the superiority of this intervention among young adults.

Keywords: Accidental falls; mobile applications; postural balance; psychological feedback; smartphone.

Conflict of interest statement

No potential conflict of interest was reported by the author(s).

Figures

Figure 1.
Figure 1.
Overview of measurement method of multi-directional reach test. A. Forward reach test. B. Backward reach test. C. Right reach test. D. Left reach test.
Figure 2.
Figure 2.
SPSRS application.
Figure 3.
Figure 3.
Flow of participants in the study.

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Source: PubMed

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