The relationship between psychological capital and athlete burnout: the mediating relationship of coping strategies and the moderating relationship of perceived stress.

Background: Athlete burnout represents a critical concern in sports psychology, significantly affecting athletes' well-being and performance. This study examined the relationships among psychological capital, coping strategies, perceived stress, and athlete burnout.

Methods: A cross-sectional survey was conducted among 344 athletes, and data were analyzed using SPSS Statistics 25.

Irisin reshapes bone metabolic homeostasis to delay age-related osteoporosis by regulating the multipotent differentiation of BMSCs via Wnt pathway.

Introduction: Bone aging is linked to changes in the lineage differentiation of bone marrow stem cells (BMSCs), which show a heightened tendency to differentiate into adipocytes instead of osteoblasts. The therapeutic potential of irisin in addressing age-related diseases has garnered significant attention. More significantly, irisin has the capacity to enhance bone mass recovery and sustain overall bone health.

Inflammation mediates the association between muscle mass and accelerated phenotypic aging: results from the NHANES 2011-2018.

Background: Muscle mass plays a pivotal role in health maintenance, yet its connection to biological aging remains underexplored. This study investigates the association between appendicular skeletal muscle mass index (ASMI) and phenotypic age(PhenoAge), while examining the mediating role of systemic inflammation.

Methods: The analysis included 7,440 participants from the NHANES 2011-2018.

Study on the vibration characteristics and influence range of buried dam pipeline.

To alleviate water resource shortages and tensions and meet the water diversion needs of different river basins, buried (cross-dam) pipelines have become an essential component of water diversion projects. They are installed in levee projects in key river basins such as the Yellow River, Jingjiang River, and Beijiang River. Due to the complex engineering structure and multiple sources of vibration excitation, if vibrations propagate along the pipeline axis towards the surrounding levee, they could have an adverse impact on the stability and safe operation of the levee.

Alleviating the IL-1β-stimulated extracellular matrix degradation in osteoarthritis, and chondrocyte inflammation by polysaccharide via the SIRT6/NF-κB pathway.

Morinda officinalis polysaccharide (MOP) is a major active component of Morinda officinalis, known for its roles in supporting bone health and reducing oxidation and inflammation. However, no studies to date have specifically examined the effects of MOP on interleukin-1β (IL-1β)-stimulated chondrocyte inflammation or the progression of osteoarthritis (OA). To investigate, cell counting kit-8 assays were performed to evaluate MOP's impact on the viability of human chondrocytes (C28/I2 c.