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Mandlik GV, Siopis G, Nguyen B, Ding D, Edwards KM. Effect of a single session of yoga and meditation on stress reactivity: A systematic review. Stress Health 2024; 40:e3324. [PMID: 37822096 DOI: 10.1002/smi.3324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/10/2023] [Accepted: 09/17/2023] [Indexed: 10/13/2023]
Abstract
This systematic review synthesises the evidence for the effectiveness of a single session of yoga or its components including meditation and breathing techniques in reducing acute stress reactivity in healthy adults. Following the PRISMA guidelines, we searched Medline, EMBASE, Cochrane, CINAHL, and PsycINFO on 30th July 2023 for randomised controlled or crossover trials of yoga components and reporting physiological and/or psychological outcome measure(s) related to stress reactivity. Risk of bias (ROB) was assessed using the Cochrane ROB 2 tool. Data were synthesised narratively. Twenty-one out of 28 eligible studies (n = 2574) relating to 31 interventions (meditation [n = 22], breathing [n = 4] and yoga [n = 5]) reported outcomes in favour of the intervention. Stress reactivity was reported to be reduced by 71% of studies measuring physiological outcomes and 65% of studies measuring psychological outcomes. These studies show that a single session of yoga components is effective in reducing acute stress reactivity in adults and could be recommended for stress management. Future studies with larger populations and a more equal representation of genders and age groups are warranted.
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Affiliation(s)
- Gandhar V Mandlik
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, New South Wales, Australia
| | - George Siopis
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
| | - Binh Nguyen
- Charles Perkins Centre, The University of Sydney, Camperdown, New South Wales, Australia
- Prevention Research Collaboration, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
| | - Ding Ding
- Charles Perkins Centre, The University of Sydney, Camperdown, New South Wales, Australia
- Prevention Research Collaboration, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
| | - Kate M Edwards
- Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, New South Wales, Australia
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Ruchiwit M, Vuthiarpa S, Ruchiwit K, Muijeen K, Phanphairoj K. A Synthesized Model for Applying Stress Management and Biofeedback Interventions in Research Utilization: A Systematic Review and Meta-analysis. Clin Pract Epidemiol Ment Health 2024; 20:e17450179276691. [PMID: 38660573 PMCID: PMC11037511 DOI: 10.2174/0117450179276691231229071003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 04/26/2024]
Abstract
Background Stress management and biofeedback interventions have been shown to be effective in improving mental and physical health outcomes. However, previous research studies and synthesized models for applying these interventions in research utilization are insufficient. Objective This study aimed to synthesize a model for applying stress management and biofeedback interventions in research utilization. Methods A systematic review and meta-analysis were conducted according to the PRISMA guidelines.Multiple studies were used to assess the effectiveness of applying stress management and biofeedback interventions published from 2017 to 2023. The process included identifying the research questions, conducting a comprehensive literature search, assessing study quality, extracting data, synthesizing the data, analyzing and interpreting the findings, drawing conclusions, and making recommendations. Results The results indicated a significant mean effect size without evidence of publication bias. The effect sizes of the subgroups among the study variables were not significantly different [Q = 4.02, p = .26]. However, there were significant differences regarding the mean effect sizes among the studies [Q = 63.59, p < .001] and also in terms of the test of subgroups among the participants [Q = 8.49, p = .04]. Conclusion The results emphasize the importance of evidence-based practice and highlight the need for ongoing evaluation and refinement of interventions. The proposed model was supported by related theories and research studies in order to ensure the robustness and reliability to guide practice and future research in the field of biofeedback interventions. By following this model, researchers and practitioners can ensure that stress management and biofeedback interventions are evidence-based and are effective in improving mental and physical health outcomes.
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Affiliation(s)
- Manyat Ruchiwit
- Faculty of Nursing, Rattana Bundit University, Pathumthani, Thailand
| | - Sararud Vuthiarpa
- Faculty of Nursing, Rattana Bundit University, Pathumthani, Thailand
| | - Kampol Ruchiwit
- Faculty of Allied Health Sciences, Thammasat University, Pathumthani, Thailand
| | - Kasorn Muijeen
- Faculty of Nursing, Thammasat University, Pathumthani, Thailand
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Egger SM, Frey S, Sauerzopf L, Meidert U. A Literature Review to Identify Effective Web- and App-Based mHealth Interventions for Stress Management at Work. Workplace Health Saf 2023; 71:452-463. [PMID: 37254448 PMCID: PMC10503239 DOI: 10.1177/21650799231170872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Persistent job-related stress can be harmful to physical and mental health and has a sizable financial burden on society. Face-to-face interventions are effective in reducing stress but have the disadvantage of high costs and time requirements. mHealth solutions may be an effective alternative to provide stress management interventions at work. Occupational health professionals need information on which mHealth apps are effective for employees to manage job-related stress. The aim of this review is to provide an overview of effective web- and app-based interventions for reduction of job-related stress and stress-related symptoms. METHOD A literature review was conducted in the databases PubMed, PsycINFO, CINAHL Complete, and IEEEXplore. FINDINGS A total of 24 articles describing 19 products were found. All products showed effectiveness in trials in improving mental and/or physical health and reducing stress. Most products have a course-like structure with a duration from 1 to 8 weeks. The products use various methods such as psychoeducation and education on stress, cognitive restructuring, emotional regulation, problem-solving, goal setting, gratitude, breathing, or mindfulness techniques. Most products use more than one method and most mixed material such as text on web pages, text messages, videos, reading and audio material, and games. CONCLUSION/APPLICATION TO PRACTICE Overall, effective mHealth products were identified for the intervention of acute and chronic stress. Occupational health practitioners can use these 19 evidence-based mHealth products when advising organizations on health promotion of employees to reduce stress symptoms and promote health and well-being.
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Affiliation(s)
- Selina Marita Egger
- Institute of Occupational Therapy, School of Health Sciences, Zurich University of Applied Sciences
| | - Sara Frey
- Institute of Occupational Therapy, School of Health Sciences, Zurich University of Applied Sciences
| | - Lena Sauerzopf
- Institute of Occupational Therapy, School of Health Sciences, Zurich University of Applied Sciences
| | - Ursula Meidert
- Institute of Occupational Therapy, School of Health Sciences, Zurich University of Applied Sciences
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Tinello D, Tarvainen M, Zuber S, Kliegel M. Enhancing Inhibitory Control in Older Adults: A Biofeedback Study. Brain Sci 2023; 13:brainsci13020335. [PMID: 36831878 PMCID: PMC9954520 DOI: 10.3390/brainsci13020335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Multidomain interventions based on bio-/neurofeedback have proven useful in improving executive functions. The present study aimed to explore the potential efficacy and feasibility of an intervention that combined Heart Rate Variability Biofeedback (HRV-BF) and Near Infrared Hemoencephalography Neurofeedback (nirHEG-NF) on inhibitory control (IC) of healthy older adults. Thirty-four participants were randomly assigned to two groups: the biofeedback group (received a 10-week combined intervention of HRV-BF and nirHEG-NF) and the active control group (received a similar protocol without real-time biofeedback). Besides cognitive outcomes, the study examined pre- and post-changes in autonomic regulation and prefrontal blood oxygenation at rest and during training. Results revealed training-induced inhibitory control gains in one of the two interference tasks, whereas no effect was found on response inhibition. After the intervention, HRV increased in participants with the lowest levels of HRV at baseline. Although older adults increased blood oxygenation during training, no significant pre- and post-changes were found in blood flow oxygenation. These findings not only suggest that HRV-BF and nirHEG-NF potentially improve performance in certain subcomponents of inhibition (i.e., interference vs. response inhibition), but it may also be beneficial for parasympathetic activity in participants with low HRV and for increasing blood flow oxygenation on prefrontal areas during training.
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Affiliation(s)
- Doriana Tinello
- Faculty of Psychology and Educational Sciences, University of Geneva, Boulevard du Pont d’Arve 28, 1205 Geneva, Switzerland
- LIVES, Overcoming Vulnerability, Life Course Perspective, Swiss National Centre of Competence in Research, University of Lausanne, Géopolis Building, 1015 Lausanne, Switzerland
- Centre for the Interdisciplinary Study of Gerontology and Vulnerability (CIGEV), University of Geneva, Boulevard du Pont d’Arve 28, 1205 Geneva, Switzerland
- Correspondence: ; Tel.: +41-22-937-93796
| | - Mika Tarvainen
- Department of Technical Physics, University of Eastern Finland, 70211 Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, University of Eastern Finland and Kuopio University Hospital, 70029 Kuopio, Finland
| | - Sascha Zuber
- LIVES, Overcoming Vulnerability, Life Course Perspective, Swiss National Centre of Competence in Research, University of Lausanne, Géopolis Building, 1015 Lausanne, Switzerland
- Centre for the Interdisciplinary Study of Gerontology and Vulnerability (CIGEV), University of Geneva, Boulevard du Pont d’Arve 28, 1205 Geneva, Switzerland
- Institute on Aging & Lifelong Health, University of Victoria, Victoria, BC V8W 2Y2, Canada
| | - Matthias Kliegel
- Faculty of Psychology and Educational Sciences, University of Geneva, Boulevard du Pont d’Arve 28, 1205 Geneva, Switzerland
- LIVES, Overcoming Vulnerability, Life Course Perspective, Swiss National Centre of Competence in Research, University of Lausanne, Géopolis Building, 1015 Lausanne, Switzerland
- Centre for the Interdisciplinary Study of Gerontology and Vulnerability (CIGEV), University of Geneva, Boulevard du Pont d’Arve 28, 1205 Geneva, Switzerland
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Hashiguchi N, Cao J, Lim Y, Kuroishi S, Miyazaki Y, Kitahara S, Sengoku S, Matsubayashi K, Kodama K. Psychological Effects of Heart Rate and Physical Vibration on the Operation of Construction Machines: Experimental Study. JMIR Mhealth Uhealth 2021; 9:e31637. [PMID: 34524105 PMCID: PMC8482169 DOI: 10.2196/31637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/29/2021] [Accepted: 07/31/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND A construction method has emerged in which a camera is installed around a construction machine, and the operator remotely controls the machine while synchronizing the vibration of the machine with the images seen from the operator's seat using virtual reality (VR) technology. Indices related to changes in heart rate (HR) and physical vibration, such as heart rate variability (HRV) and multiscale entropy (MSE), can then be measured among the operators. As these indices are quantitative measures of autonomic regulation in the cardiovascular system, they can provide a useful means of assessing operational stress. OBJECTIVE In this study, we aimed to evaluate changes in HR and body vibration of machine operators and investigate appropriate methods of machine operation while considering the psychological load. METHODS We enrolled 9 remote operators (18-50 years old) in the experiment, which involved 42 measurements. A construction machine was driven on a test course simulating a construction site, and three patterns of operation-riding operation, remote operation using monitor images, and VR operation combining monitor images and machine vibration-were compared. The heartbeat, body vibration, and driving time of the participants were measured using sensing wear made of a woven film-like conductive material and a three-axis acceleration measurement device (WHS-2). We used HRV analysis in the time and frequency domains, MSE analysis as a measure of the complexity of heart rate changes, and the ISO (International Standards Organization) 2631 vibration index. Multiple regression analysis was conducted to model the relationship among the low frequency (LF)/high frequency (HF) HRV, MSE, vibration index, and driving time of construction equipment. Efficiency in driving time was investigated with a focus on stress reduction. RESULTS Multiple comparisons conducted via the Bonferroni test and Kruskal-Wallis test showed statistically significant differences (P=.05) in HRV-LF/HF, the vibration index, weighted acceleration, motion sickness dose value (MSDVz), and the driving time among the three operation patterns. The riding operation was found to reduce the driving time of the machine, but the operation stress was the highest in this case; operation based on the monitor image was found to have the lowest operation stress but the longest operation time. Multiple regression analysis showed that the explanatory variables (LH/HF), RR interval, and vibration index (MSDVz by vertical oscillation at 0.5-5 Hz) had a negative effect on the driving time (adjusted coefficient of determination R2=0.449). CONCLUSIONS A new method was developed to calculate the appropriate operating time by considering operational stress and suppressing the physical vibration within an acceptable range. By focusing on the relationship between psychological load and physical vibration, which has not been explored in previous studies, the relationship of these variables with the driving time of construction machines was clarified.
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Affiliation(s)
- Nobuki Hashiguchi
- Graduate School of Technology Management, Ritsumeikan University, Ibaraki, Japan
| | - Jianfei Cao
- Graduate School of Technology Management, Ritsumeikan University, Ibaraki, Japan
| | - Yeongjoo Lim
- Faculty of Business Administration, Ritsumeikan University, Ibaraki, Japan
| | - Shinichi Kuroishi
- Metropolitan Area Branch Civil Engineering Department, Kumagai Gumi Co, Ltd, Shinjuku-ku, Japan
| | - Yasuhiro Miyazaki
- Civil Engineering Business Headquarters, Kumagai Gumi Co, Ltd, Shinjuku-ku, Japan
| | - Shigeo Kitahara
- Civil Engineering Business Headquarters, Kumagai Gumi Co, Ltd, Shinjuku-ku, Japan
| | - Shintaro Sengoku
- School of Environment and Society, Tokyo Institute of Technology, Minato-ku, Japan
| | | | - Kota Kodama
- Graduate School of Technology Management, Ritsumeikan University, Ibaraki, Japan
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Szulczewski MT. Transcutaneous Auricular Vagus Nerve Stimulation Combined With Slow Breathing: Speculations on Potential Applications and Technical Considerations. Neuromodulation 2021; 25:380-394. [PMID: 35396070 DOI: 10.1111/ner.13458] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/02/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Transcutaneous auricular vagus nerve stimulation (taVNS) is a relatively novel noninvasive neurostimulation method that is believed to mimic the effects of invasive cervical VNS. It has recently been suggested that the effectiveness of taVNS can be enhanced by combining it with controlled slow breathing. Slow breathing modulates the activity of the vagus nerve and is used in behavioral medicine to decrease psychophysiological arousal. Based on studies that examine the effects of taVNS and slow breathing separately, this article speculates on some of the conditions in which this combination treatment may prove effective. Furthermore, based on findings from studies on the optimization of taVNS and slow breathing, this article provides guidance on how to combine taVNS with slow breathing. MATERIALS AND METHODS A nonsystematic review. RESULTS Both taVNS and slow breathing are considered promising add-on therapeutic approaches for anxiety and depressive disorders, chronic pain, cardiovascular diseases, and insomnia. Therefore, taVNS combined with slow breathing may produce additive or even synergistic beneficial effects in these conditions. Studies on respiratory-gated taVNS during spontaneous breathing suggest that taVNS should be delivered during expiration. Therefore, this article proposes to use taVNS as a breathing pacer to indicate when and for how long to exhale during slow breathing exercises. CONCLUSIONS Combining taVNS with slow breathing seems to be a promising hybrid neurostimulation and behavioral intervention.
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