Psychological resilience in athletes during the COVID-19 pandemic: A qualitative insight.

This study employs a qualitative research methodology to comprehensively investigate the psychological resilience of athletes impacted by the COVID-19 pandemic. Through purposeful sampling, a diverse group of athletes representing various sports, competitive levels, and geographic locations was selected, ensuring a holistic exploration of their experiences. Data collection centered on in-depth interviews, utilizing a semi-structured approach guided by predetermined open-ended questions. Ethical standards were meticulously upheld, with informed consent obtained from all participants, and strict measures in place to safeguard their confidentiality and anonymity. Prior to data collection, pilot testing of interview questions was conducted to enhance their clarity and appropriateness. Subsequently, data analysis involved the meticulous transcription of field-notes and audio-recordings into protocols and transcripts, followed by systematic coding facilitated by qualitative data management software. To enhance research rigor, strategies including reflexivity, member-checking, and collaborative coding were embraced. This comprehensive methodology facilitated a deep and nuanced exploration of athletes' experiences, perceptions, and coping strategies during the pandemic, ultimately contributing valuable insights to the study of psychological resilience in sports. The findings shed light on the challenges athletes faced, the support systems and personal attributes that fostered resilience, and the role of well-being practices like mindfulness and self-care in enhancing psychological resilience. The implications of this research extend to proactive strategies for sports organizations and stakeholders, fostering a culture of resilience, and empowering athletes to thrive in the face of adversity, ultimately promoting their long-term psychological well-being.

Propionate and Butyrate Produced by Gut Microbiota after Probiotic Supplementation Attenuate Lung Metastasis of Melanoma Cells in Mice.

SCOPE: The beneficial effects of probiotics in reducing gastrointestinal inflammation and in preventing colorectal cancer have been reported, but the mechanism underlying the immunomodulatory effect of probiotics in inhibiting extra-intestinal tumor progression remains unclear. METHODS AND RESULTS: This study shows that probiotic supplementation attenuate lung metastasis of melanoma cells in mice. Feeding mice with VSL#3 probiotics change the composition and proportion of gut microbiota. The changes in gut bacteria composition, such as in the abundance of Lachnospiraceae, Streptococcus, and Lachnoclostridium, are associated with the production of short-chain fatty acids in the gut. The concentrations of propionate and butyrate are upregulated in gut and blood after feeding VSL#3, and the increase in propionate and butyrate levels promotes the expression of chemokine (C-C motif) ligand 20 (CCL20) in lung endothelial cells and the recruitment of T helper 17 (Th17) cells to the lungs via the CCL20/chemokine receptor 6 axis. The recruitment of Th17 cells decreases the number of tumor foci in lungs and attenuates the lung metastasis of melanoma cells in mice. CONCLUSIONS: The results provide new information on the role and mechanisms of action of probiotics in attenuating extra-intestinal tumor metastasis.