Impact of Appearance-Related Language on Dancers’ Body Image

Dancers are at an increased risk for body dissatisfaction and disordered eating. Research has shown that body-related talk may play a significant role, as indicated by the association between receiving appearance-related comments and negative body image. Conversely, other research suggests that focusing on body functionality, including the physical abilities of one’s body, is associated with greater body appreciation and body satisfaction and reduced body surveillance. To examine the effects of different types of body-related language on dancers’ body image, 15 undergraduate dance students participated in this study which required them to complete an online survey in which they read instructions for a dance exercise that included either appearance-related, function-related, or neutral cues. Participants were required to perform the exercise, complete the Body Image States Scale (BISS), report their perceived performance level, and indicate their dancer identity. The outcome of this study found that type of language did not impact body image scores or performance level. The study also found that dance style identity did not impact body image scores. Understanding how language impacts dancers may help dance instructors promote positive body image in their students

Rotator Cuff Fibro‐Adipogenic Progenitors Demonstrate Highest Concentration, Proliferative Capacity, and Adipogenic Potential Across Muscle Groups

Fatty infiltration (FI) of rotator cuff (RC) muscles is common in patients with RC tears. Studies have demonstrated that fibro-adipogenic progenitors (FAPs), a population of resident muscle stem cells, are the main contributors of FI, which adversely affects muscle quality and RC repair success. Although FI is common in RC injuries, it is not frequently reported after other musculotendinous injuries. Additionally, studies have shown the development of different pathology patterns across muscle groups suggestive of intrinsic differences in cellular composition and behavior. This study evaluates FAP distribution and differentiation properties across anatomic locations in mice. Muscles from seven different anatomic locations were harvested from PDGFRα-eGFP FAP reporter mice. FAPs were quantified using histology and FACS sorting with BD Aria II with CD31(−)/CD45(−)/Integrinα7(−)/Sca-1(+) and PDGFRα reporter signal (n = 3 per muscle). The cells were analyzed for adipogenesis using immunocytochemistry and for proliferation properties with Brdu-Ki67 staining. In a separate group of mice, RC and tibialis anterior muscles received glycerol injection and were harvested after 2 weeks for FI quantification (n = 4). One-way analysis of variance was used for statistical comparisons among groups, with significance at p < 0.05. FAPs from the RC, masseter, and paraspinal muscles were more numerous and demonstrated greater proliferative capacity and adipogenic potency than those from the tibialis anterior and gastrocnemius. The RC demonstrated significantly greater levels of FI than the tibialis anterior after glycerol-injection injury. Clinical Significance: This study suggests differences in FAP distribution and differentiation characteristics may account for the propensity to develop FI in RC tears as compared with other musculotendinous injuries