This is a cross-sectional study that included participants aged ≥18 years from 39 participating countries. The online survey was administered to all participants registered for the International Day of Yoga event, organized by the Heartfulness Institute in partnership with the Central Council for Research in Yoga and Naturopathy (CCRYN), Ministry of Ayush, SVYASA Yoga University, and Patanjali Institute, India. Individuals included in the study (1) were at least 18 years of age, (2) had internet access and the ability to complete an online survey either in English or Hindi, and (3) had registered to participate in a 100-day virtual yoga and meditation program. Participants for the event were recruited by multiple channels including social media, partner organizations, and word of mouth. All participants completing the survey and consenting to the use of data for research purposes were included in the analysis. Ultimately, 3164 participants were included in the analysis.

The virtual 100-day yoga and meditation program ran from March 14, 2021, through June 21, 2021. The event was telecasted on YouTube and social media pages including Facebook. The program was facilitated by certified yoga and Heartfulness meditation trainers and consisted of live yoga asanas (postures) in the tradition of Ashtanga yoga, meditation, and speaker sessions. Asana sessions consisted of breathing exercises (pranayama), sun salutation (surya namaskar), yoga practice (beginner, intermediate, and advanced levels as the program progressed), and meditation sessions. Meditation sessions were based on Heartfulness practices. Participants were requested to sit comfortably with eyes closed and gently focus their attention on the source of light within their heart. Participants were asked to simply tune into their hearts and be open to any experience they may have as opposed to trying to visualize the light. If their attention drifted, participants were advised to gently redirect their attention toward their heart. This form of meditation practice has been studied in multiple settings, demonstrating favorable outcomes on burnout, sleep, loneliness, heart rate variability, and emotional well-being [25-33]. Further, speaker sessions included subject matter experts on yoga and meditation from around the world who spoke about topics including but not limited to history of yoga, yoga for unity and well-being, effect of yoga on different systems in the body, benefits of meditation, and research in yoga. The duration of the daily sessions was approximately 1 hour.

The survey was designed using standardized scales for well-being–related measures along with questions on demographics and patterns of yoga and Heartfulness meditation practice and administered as a Google Form. The survey was developed in partnership with the CCRYN, Ministry of Ayush, Government of India, to ensure representation of global yoga and meditation practices. Administered in both English and Hindi languages, the survey consisted of 20 items and was divided into three parts: (1) participant demographics including age, gender, country of residence, and occupation, (2) regularity of yoga practice and duration of meditation practices, and (3) HRQOL questions rated on a scale from 0-10 on quality of life, ability to adopt a healthy lifestyle, coping with day-to-day stress, workplace productivity, and staying healthy during the COVID-19 pandemic. Further, a Likert scale was used to assess the domains of ability to relax and frequency of nervousness and stress. Data were collected over a 2-week period.

This study was cross-sectional in nature and was conducted as a program evaluation. As such, it was exempt from institutional review board approval. However, informed consent and password protection for data collection were included. This e-survey design was reported using the CHERRIES (Checklist for Reporting Results of Internet E-Surveys) guidelines [34]. Participation was voluntary and included signing an electronic informed consent form prior to accessing the survey questionnaire.

Participants did not incur any costs associated with the event and did not receive any incentives for study participation. All participants received a certificate of participation from the Heartfulness Institute, India, at the end of the program.

Survey results were cleaned to identify miscoded, missing data and outliers. Data were entered in Microsoft Excel and analyzed using SPSS (version 22; IBM Corp). Descriptive statistics (frequencies, percentages, and standard deviations) were obtained to describe the demographic data, yoga and meditation practice patterns, and attendance across the 100-day virtual yoga event. Participants were asked to report on the frequency of yoga to examine its relation to HRQOL. The differences in HRQOL among participants who practiced yoga regularly was compared against participants not practicing yoga regularly. Similarly, participants were asked to report on their experience with Heartfulness meditation and duration of practice in years. The differences in HRQOL among participants who practiced Heartfulness meditation regularly (≥2 years) were compared against participants with less experience with this form of meditation (≤1 year) and participants who had previously tried this form of meditation but were not currently practicing. Kolmogorov-Smirnov normality test showed that most data were not normally distributed. Thus, Mann-Whitney U test and Kruskal-Wallis tests were used for continuous variables and chi-square test was used for categorical variables. Further, a post hoc analysis of continuous variables was conducted to examine differences in HRQOL within the Heartfulness meditation practitioner group. A P value of <.05 was considered statistically significant throughout the analysis.

Participants’ demographic characteristics are described in Table 1. Of the 3164 participants included in the analysis, the majority were female (n=1643, 51.93%) and students (n=1312, 41.47%). Participants’ mean age was 33.87 (SD 13.61, range 18-80) years. Of the 39 countries that participated in the program, most of the participation was from India (n=3020, 95.45%), followed by the United States (n=29, 0.92%) and United Arab Emirates (n=17, 0.53%). Of 3164 participants in the sample, 1647 (52.05%) were regular yoga practitioners, and 1517 were categorized as nonregular yoga practitioners (47.95%). Further, 64.89% (n=2053) reported experience with Heartfulness meditation practice and 35.11% (n=1111) did not practice Heartfulness meditation. Among the Heartfulness meditation practitioners, 38.28% (n=786) reported ≤1 year of practice, 59.28% (n=1217) had practiced for ≥2 years, and 2.44% (n=50) of participants reported not currently practicing this form of meditation.

A total of 3164 individuals completed the survey and reported an average participation rate of 71 (SD 32) days. Most participants (n=1684, 53.22%) attended daily yoga and meditation sessions throughout the 100 days.

Participants who practiced yoga regularly reported a statistically significantly higher positive impact on all domains of HRQOL as compared to participants who were not regular yoga practitioners, including quality of life (U=924263.5, P<.001), ability to adopt healthy lifestyle (U=915778.500, P<.001), coping with day-to-day stress (U=898958.000, P<.001), improving work productivity (U=908140.500, P<.001), and staying healthy during the COVID-19 pandemic (U=896486.500, P<.001; Table 2). Further, regular yoga practitioners had a greater ability to relax (df=3, P<.001) and experienced lower frequency of nervousness and stress (df=3, P<.001) as compared to nonregular yoga practitioners (Table 3).

Notably, regular Heartfulness meditation practitioners reported a higher statistically significant impact on all HRQOL domains: quality of life (U=993578, P<.001), ability to adopt healthy lifestyle (U=1012703.500, P<.001), coping with day-to-day stress (U=984983, P<.001), improving work productivity (U=998981.500, P<.001), staying healthy during the COVID-19 pandemic (U=995166.500, P<.001; Table 4). Further, the Heartfulness meditation practice group had a greater ability to relax (df=3, P<.001) and experienced a lower frequency of nervousness and stress (df=3, P<.001) as compared to the non–Heartfulness meditation group (Table 5).

Participants were categorized in three groups based on their response to the number of years of experience with Heartfulness meditation practice: (1) not currently practicing but had previously tried the form of meditation, (2) ≤1 year, and (3) ≥2 years of meditation practice. A total of 1217 participants (59.28%) reported ≥2 years of Heartfulness meditation experience, 786 (38.28%) reported ≤1 year of Heartfulness meditation experience, and 50 (2.44%) reported having previously tried this form of meditation but not currently practicing it.

Significant differences within the groups were observed through a Kruskal-Wallis test. The test indicated that quality of life (H=77.33, P<.001), adopting a healthy lifestyle (H=55.54, P<.001), coping with day-to-day stress (H=61.78, P<.001), improving workplace productivity (H=67.64, P<.001), and staying healthy during the COVID-19 pandemic (H=64.79, P<.001) differed between at least one group within the Heartfulness meditation practice group. Post hoc analysis revealed that there was a higher HRQOL for all domains observed for participants with ≥2 years of meditation practice as compared to the other two groups (P<.001; Table 6).

Overall, this study showed that a regular yoga and meditation practice was associated with factors promoting health and well-being, with long-term meditation practice associated with increased benefits. This study is one of the first cross-sectional studies to analyze the effects of a 100-day virtual yoga and meditation program and has 3 key findings. First, the demographic results suggest most practitioners are female and students/educated. Our findings corroborate those of other studies in several countries such as the United Kingdom, United States, and Australia, where yoga and meditation practitioners were mostly female and educated [35-38]. Although those studies reported an average age between 39-41 years, this study, in contrast, had a younger population with an average age of 33.8 years and mostly student participants. These findings concur with recent studies in the Indian setting reporting that students and a younger population make up most participants for yoga events [39,40]. Recent literature has reported an increased interest among young people in India to incorporate yoga as part of their fitness regimen [40]. Nevertheless, we speculate the larger participation from India in this global event, as compared to other countries, is because of the broader presence of the event organizers (Heartfulness Institute, CCRYN, Ministry of Ayush, SVYASA Yoga University, and Patanjali Yoga Institute) in India.

Second, participants were highly engaged throughout the program period, given that 100 days of yoga and meditation is a substantial time commitment. A notable average participation rate of 71 days (SD 32), with 53.22% attending sessions every day for 100 days, suggests that participants were willing to engage in an online activity to enhance their well-being. Limited research exists to compare engagement rates of programs centered around International Yoga Day events with previous literature [39,40].

Third, results examining the effect of yoga demonstrated that regular practice had a statistically significant positive impact on all 7 domains of HRQOL. Similar results have been reported by several studies examining the effect of yoga on mental and physical health [40]. There is overwhelming evidence indicating that the frequency of yoga practice positively predicts its health benefits [35,36,38,41,42]. Another important finding of this study was that meditation had a statistically significant positive impact on all the HRQOL domains (P<.05). Interestingly, participants with ≥2 years of experience reported a higher impact on all domains of HRQOL as compared to participants with ≤1 year of meditation practice. The findings imply that sustained practice may cumulatively increase the benefits for well-being. This contrasts with a recent study that found no association between years of meditation practice and mental well-being [42]. Nevertheless, findings from this study concur with previous literature suggesting a positive correlation between perception of health, well-being, and years of meditation practice [43-45].

Although this study provided new evidence about characteristics of yoga and meditation practitioners in a 100-day virtual yoga and meditation program, there were several limitations. The data were cross-sectional in nature; therefore, causality cannot be inferred. A priority for future research includes using longitudinal designs to examine the causal relationship between meditation practice and key outcomes of interest of the study. Moreover, all participants included in the evaluation self-selected to participate in the program. This may have contributed to a potential inclusion bias of those with an interest in yoga and meditation. Further, 100 days of yoga is a substantial time commitment and such a program may have limited active participation from a broader population (eg, full-time employees). Additionally, there was an uneven distribution of members from participating countries and findings of the study may be generalizable only to Heartfulness meditation practitioners.

This is one of the first cross-sectional studies to analyze the effects of a 100-day virtual yoga and meditation program. Overall, a yoga and meditation practice was found to be an effective tool to promote HRQOL. Regular yoga and meditation practice was associated with factors promoting health and well-being, with long-term meditation practice associated with increased benefits.