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This study was aimed at evaluating the prevalence of use of dietary supplements (DSs) among gym users and gym instructors involved in body shaping-oriented fitness training. Furthermore, this study aimed to verify whether differences existed in the prevalence and in the types of DSs used in both gym users and gym instructors involved in body shaping-oriented fitness competitions vs. those not involved in fitness competitions. A survey was distributed to 316 participants, composed of 89 gym instructors and 227 gym users of both genders aged 27.3 ± 7.7. Among these participants, 52 were involved in competitions and 248 were not, while 16 participants did not specify either way. The results showed a high prevalence in the use of DSs in the population considered, with 85.4% of the participants declaring they used DSs, with high heterogeneity in the numbers and in the combinations used. No differences were found between gym instructors and gym users, or between participants involved and those not involved in competitions. The results indicate that DSs are widely used by persons involved in body shaping-oriented fitness training. The results also suggest that the majority of the participants decided individually which DSs to use.
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http://dx.doi.org/10.3390/ijerph18095005 | DOI Listing |
JAMA Netw Open
August 2025
Department of Endocrinology, Odense University Hospital. Odense, Denmark.
Importance: The illicit use of anabolic androgenic steroids (AAS) is common among recreational athletes, yet studies on adverse cardiovascular outcomes, especially in female AAS users, are sparse.
Objective: To assess cardiovascular status in Danish male and female recreational athletes using AAS compared with not using AAS.
Design, Setting, And Participants: This cross-sectional study in a single center in Denmark included recreational athletes aged 18 years or older who were active AAS users, previous users (defined as those who discontinued AAS use at least 3 months prior to the study), or nonusers, all recruited from fitness centers between March and December 2022.
Pharmaceuticals (Basel)
July 2025
Psychiatry, Medical School, Üsküdar University, 34662 İstanbul, Türkiye.
: Muscle dysmorphia (MD), a subtype of body dysmorphic disorder, is prevalent among males who engage in the non-medical use of anabolic-androgenic steroids (AASs) and performance-enhancing drugs (PEDs). These individuals often experience severe psychopathology, including mood instability, compulsivity, and a distorted body image. Despite its clinical severity, no randomized controlled trials (RCTs) have evaluated structured psychological treatments in this subgroup.
View Article and Find Full Text PDFHarm Reduct J
August 2025
Institute of Primary Care, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Introduction: The non-medical use of androgens among recreational gym users has become a global substance use concern. Complications from use particularly appear to affect the cardiovascular system, including the development of cardiovascular events, as well as anabolic steroid-induced cardiomyopathy (ASIC). Furthermore, the development of substance dependence with a specific withdrawal syndrome appears to be common and is contributed by the development of endocrine dysfunction related to anabolic steroid-induced hypogonadism.
View Article and Find Full Text PDFSensors (Basel)
July 2025
College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China.
Workflow scheduling in cloud computing is attracting increasing attention. Cloud computing can assign tasks to available virtual machine resources in cloud data centers according to scheduling strategies, providing a powerful computing platform for the execution of workflow tasks. However, developing effective workflow scheduling algorithms to find optimal or near-optimal task-to-VM allocation solutions that meet users' specific QoS requirements still remains an open area of research.
View Article and Find Full Text PDFDisabil Rehabil
August 2025
Department of Kinesiology, University of Windsor, Windsor, ON, Canada.
Purpose: Exercise offers benefits for people with a disability, yet environmental barriers hinder their participation in gyms. Universal design (UD) may enhance gym accessibility by addressing diverse users' needs, but greater empirical evidence is needed. This mixed methods study compared diverse participants' experiences of barriers and facilitators in a conventional gym and a gym adapted with UD.
View Article and Find Full Text PDF