Publications by authors named "Kazuki Hirao"

Background: Schizotypy refers to a personality type characterized by behavioral and cognitive abnormalities similar in nature but less severe than those of schizophrenia. Schizotypy often progresses to schizophrenia, so identifying risk factors may facilitate early schizophrenia diagnosis and improve treatment. Psychological distress may be associated with schizotypy, highlighting its importance.

View Article and Find Full Text PDF

Purpose: Interventions to improve the standing reach ability of older adults are essential for full functional independence, and structured positive feedback (PF) may be an effective intervention strategy. The purposes of this pilot randomized controlled trial (RCT) are to investigate the preliminary efficacy of structured PF for improving the standing reach ability of older patients admitted to a convalescent rehabilitation ward and evaluate the feasibility of a future full-scale RCT.

Methods: Thirty-two eligible older adults (83.

View Article and Find Full Text PDF

Background: Intervention for older patients with cardiac disease and subthreshold depression (StD) may be an effective strategy to prevent the development of major depressive disorder. The subliminal priming with supraliminal reward stimulation (SPSRS) website developed by us is an advanced intervention that can improve depressive symptoms in individuals with StD by presenting positive word stimuli in videos. However, its efficacy for treating depressive symptoms in older patients with cardiac disease and StD has not been investigated.

View Article and Find Full Text PDF

The purpose of this study was to evaluate the reliability of the Two-dimensional Mood Scale (TDMS) for mood assessment among older adults with dementia. The study included 100 elderly patients with dementia admitted to two hospitals. For each mood state measured by the TDMS, the intraclass correlation coefficient of agreement (ICC) was calculated to evaluate test-retest reliability.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate the effectiveness of gait training using rhythmic auditory stimulation (RAS) on improving gait speed in older adults in a rehabilitation ward, compared to traditional training.
  • Thirty older participants were randomly divided into two groups: one receiving RAS training and the other following standard gait training, with both groups completing 30-minute sessions five times a week for three weeks.
  • Results showed that the RAS group significantly improved their walking speed compared to the control group, although no differences were found in secondary health outcome measures, indicating the potential benefits of RAS in rehabilitation settings.
View Article and Find Full Text PDF

Objectives: The Kihon Checklist (KCL) is valuable for predicting long-term care (LTC) certification. However, the precise association between KCL scores and the temporal dynamics of LTC need certification remains unclear. This study clarified the characteristic trajectory of KCL scores in individuals certified for LTC need.

View Article and Find Full Text PDF

As a widely used mental task for functional near-infrared spectroscopy (fNIRS), the original color-word Stroop task has the advantage of being difficult to habituate, but also the disadvantage of being difficult to understand, especially for children. While the introduction of derived Stroop tasks offers highly promising countermeasures, changes in brain activity during these tests have not been well tested. We investigated the degree of habituation between the original and a derived Stroop task by measuring brain activity to obtain a better fNIRS task design.

View Article and Find Full Text PDF

Importance: The importance of developing age-friendly environments is globally recognized. However, few clinical trials have comprehensively evaluated physical and social components of environments and examined the effects of offering support.

Objective: To clarify the effectiveness of occupational therapy-based comprehensive environmental support for community-dwelling older adults.

View Article and Find Full Text PDF

Background: Preventive interventions for subthreshold depression (StD) are essential to reduce the incidence of major depressive disorder. Our smartphone application presenting positive word stimulation in video (ie, Subliminal Priming with Supraliminal Reward Stimulation, SPSRS) was suggested to improve depressive symptoms in people with StD, although it is unclear whether it can immediately improve depressed mood. This pilot randomized controlled trial (RCT) aimed to investigate the preliminary efficacy of SPSRS application intervention on depressive mood in people with StD.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined the Kessler Psychological Distress Scale (K6), a tool used to assess psychological distress, to determine its smallest detectable change (SDC) in a Japanese adult population.
  • A total of 3,254 participants completed the K6 and results showed a mean score of 5.71 at baseline and 5.65 at follow-up, with SDC values indicating the minimal significant change in scores.
  • The research confirmed the K6's reliability, with an intraclass correlation coefficient of 0.73 and a high internal consistency (Cronbach's alpha of 0.94), which can help in evaluating treatment efficacy for psychological distress.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the feasibility of using rhythmic auditory stimulation (RAS) to improve walking speed in older patients in convalescent rehabilitation wards (CRWs), as decreased walking speed can hinder their discharge home.
  • It will include 30 participants aged 65 and older, who will be randomly assigned to receive either RAS-based gait practice or normal gait practice for 30 minutes, five times a week over three weeks.
  • The primary outcome measured will be the change in walking speed after three weeks, along with secondary assessments of health and gait efficacy, paving the way for potential larger studies on RAS in rehabilitation.
View Article and Find Full Text PDF

The use of electronic patient-reported outcomes has increased recently, and smartphones offer distinct advantages over other devices. However, previous systematic reviews have not investigated the reliability of the Center for Epidemiologic Studies Depression Scale (CES-D), Generalized Anxiety Disorder-7 (GAD-7), and Kessler Screening Scale for Psychological Distress (K6) when used with smartphones, and this has not been fully explored. This study aimed to evaluate the equivalence of the paper and smartphone versions of the CES-D, GAD-7, and K6, which were compared following a randomized crossover design method in 100 adults in Gunma, Japan.

View Article and Find Full Text PDF

Developing support and an environment for patients with dementia in hospitals is important. This study aims to assess the immediate effect of one-session cognitive stimulation intervention on the mood of patients with dementia in a hospital as preliminary evidence. This study included 33 female patients.

View Article and Find Full Text PDF

Background: Major depressive disorder (MDD) is an important public health problem. Thus, preventive interventions against subthreshold depression (StD), which is one of the key risk factors for the development of MDD, are important. The study developed a smartphone application (SPSRS) that improves depressive symptoms in people with StD by automatically presenting positive word stimuli during videos.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Background: A smartphone application (i.e., SPSRS) was developed to help people with subthreshold depression (StD) improve depressive symptoms by presenting positive word stimuli in videos.

View Article and Find Full Text PDF

Background: Post-stroke depression (PSD) is a neuropsychiatric sequela that causes serious adverse effects on the prognosis of stroke patients. Our developed iPad application is a very innovative approach designed to improve participants' depressive symptoms by presenting positive words stimuli in a video. Although this application has fewer side effects than existing pharmacological and non-pharmacological interventions and is likely less burdensome for patients and caregivers, its efficacy for PSD has not been investigated.

View Article and Find Full Text PDF

The purpose of this study was to compare prefrontal cortex (PFC) activity among subjects with differing social anxiety (SA) severity levels to identify a possible biomarker for severe SA. Further, SA is generally under-diagnosed, so we examined if such measurements could be acquired conveniently, non-invasively, and at low cost using a portable near-infrared spectroscopy (NIRS) system. We classified 96 participants into three groups based on Liebowitz Social Anxiety Scale (LSAS) total score: Low SA (LSA, n = 40), Moderate SA (MSA, n = 39), and High SA (HSA, n = 17).

View Article and Find Full Text PDF

Introduction: Interventions aimed at addressing subthreshold depression (StD) are important to prevent the onset of major depressive disorder. Our video playback application (SPSRS) is designed to reduce depressive symptoms by presenting positive words in videos, shedding new light on the treatment of StD. However, no randomized controlled trial (RCT) has utilized this video playback application for the treatment of individuals with StD.

View Article and Find Full Text PDF

Objective: To verify the effect of adjusting the challenge-skill balance with respect to rehabilitation process.

Design: A single-blind, two-arm, parallel-group, randomized controlled trial.

Setting: Recovery rehabilitation unit of Harue Hospital, Japan.

View Article and Find Full Text PDF

Introduction: Occupational therapy (OT) is defined as the promotion of client health and well-being through a client-centred practice. However, there is a tendency to rely on the therapist's experiences and values, and there is a difference between the client's and therapist's perceptions regarding the current activity that the client is engaged in. In previous studies that have applied 'flow', activities supported by OT in elderly people were analysed, indicating a difference in recognition.

View Article and Find Full Text PDF

Background: Anxiety disorder is a major societal, economic, and healthcare burden, so it is essential to identify underlying risk factors. Sense of coherence (SOC), defined as an individual's perceived ability to control events and cope with challenges, is strongly associated with healthcare outcomes.

Methods: This study investigated the association between SOC and anxiety among adults in all 47 prefectures of Japan using a cross-sectional online panel survey.

View Article and Find Full Text PDF

Aim: We developed a motion picture-reproducing smartphone application (app) designed to improve self-confidence in individuals with subthreshold depression (StD) and examined the feasibility and preliminary efficacy of an app intervention for individuals with StD.

Methods: We conducted an open-label, single-arm pre-post study of 22 young adults with StD. Our intervention involved app usage for at least 70 min/wk for 5 weeks.

View Article and Find Full Text PDF

Although the self-report version of Liebowitz Social Anxiety Scale (LSAS) is frequently used to measure social anxiety, data is lacking on the smallest detectable change (SDC), an important index of measurement error. We therefore aimed to determine the SDC of LSAS. Japanese adults aged 20-69 years were invited from a panel managed by a nationwide internet research agency.

View Article and Find Full Text PDF

Objective: We sought to investigate whether occupational therapy that includes adjusting the challenge-skill balance improves health-related quality of life (HRQOL) for older adults in comparison with standard occupational therapy.

Method: In this single-blind, randomized controlled trial, 56 older adults were assigned to two groups that received 10 sessions of occupational therapy with and without adjustment of challenge-skill balance. The primary outcome was change in HRQOL after 10 sessions of occupational therapy.

View Article and Find Full Text PDF