Sleep disorders have increased in Brazil, favoring metabolic alterations and a higher risk of chronic diseases. At the same time, excess weight affects more than half of the adult population. Evidence indicates that short sleep duration contributes to higher food intake and obesity, while healthy habits such as balanced nutrition and physical activity are fundamental in the prevention of noncommunicable chronic diseases. Therefore, this study evaluated nutritional status, cardiovascular risk, and sleep quality in physically active adults. This was cross-sectional observational study conducted with 79 adults aged 19 to 59 years who regularly practiced physical activity in gyms in Barbacena, Minas Gerais, Brazil. Sociodemographic data, weight, height, body fat percentage, waist-to-hip ratio, and waist-to height ratio were collected. Sleep quality was assessed using the Pittsburgh Sleep Quality Index. Data were analyzed using R software through descriptive statistics, correlation, and logistic regression, adopting a 5% significance level. The sample was predominantly female (62%), with a mean age of 33.7 years. A high prevalence of overweight was observed (48%), with a mean body mass index of 26.6 kg/m. Poor sleep quality was reported by 54.4% of the participants, with a mean score of 5.9 points. Body fat percentage and waist-to-hip ratio differed between sexes. No significant association was found between sleep quality and age, sex, body mass index, waist-to-height ratio, or training period. These findings highlight the importance of integrated health promotion strategies that consider both nutritional status and sleep quality.
This study investigated culinary skills among exercise practitioners-weight training, cross-training, and street running. The design was cross-sectional, and sociodemographic, lifestyle, and culinary profile information were collected through an online questionnaire, including the Brazilian Questionnaire of Culinary Skills and Healthy Eating (QBHC). The sample, composed of 82 people aged 18-70 years, was predominantly young, 18-25 years old (42.7%), female (61.7%), white (82.7%), with a high school diploma (58.6%), and with a prevalence of overweight (46.3%) or normal weight (34.2%). Most had been weight training (81.7%) for more than 5 years (31.7%) and reported knowing how to cook (87.7%). Good availability of fruits and vegetables at home was observed, especially among women. The highest scores were observed on the Culinary Self-Efficacy (3.97), Self-Efficacy for the Use of Fruits, Vegetables, and Seasonings (3.71), and Culinary Attitude (3.70) scales. Participants who considered themselves skilled in the kitchen (87.7%) showed more positive attitudes toward preparing home-cooked meals and greater confidence in using basic techniques and fresh ingredients, despite limited technical knowledge. It is concluded that those who practice physical exercise consider themselves capable of cooking and have a satisfactory level of culinary skills, although they demonstrate low knowledge of culinary techniques.
Caffeine is widely consumed by resistance training practitioners, particularly when ingested prior to exercise. Its use is associated with its recognized ergogenic potential in the sports context, being employed as a strategy to enhance readiness, alertness, and training intensity during strength training sessions. Objective: This study aimed to investigate the ergogenic effects of caffeine on muscular strength performance, assessed through the one-repetition maximum (1RM) test in four resistance exercises: barbell curl, cable triceps pushdown, leg press, and knee extension. Materials and Methods: A randomized, doubleblind, placebo-controlled crossover design was adopted, involving 11 participants. The volunteers performed 1RM tests on two separate occasions, receiving either caffeine (6 mg/kg) or placebo in a randomized order. Data were analyzed using paired statistical tests (paired t-test or Wilcoxon signed-rank test, according to data distribution), with a significance level set at p<0.05. Results: No statistically significant differences were observed between the caffeine and placebo conditions in muscular strength performance across the exercises evaluated, suggesting that the ergogenic effects of caffeine may vary according to exercise type and individual characteristics. Conclusion: Future studies with larger sample sizes, greater control of individual variables, and the inclusion of genetic analyses are necessary to clarify the underlying mechanisms and to identify responder profiles to caffeine supplementation in strength training.
Objective: To analyze the content and characteristics of videos about muscle hypertrophy published on TikTok. Materials and Methods: Descriptive study using the following search terms on TikTok: "dieta para hipertrofia," "dieta para ganhar massa magra," "dieta para ganhar m & uacute;sculo," and "bulking". For each hashtag, the first 30 videos displayed by the platform's algorithm were selected. Variables related to the characteristics and content of the videos were collected, such as: content link, year of publication, number of views, number of comments, number of saves, number of likes, number of shares, presence of audio, video duration, presence of subtitles/captions, professional credentials, category of activity, information in the profile biography, professional registration, and whether the creator was a student in the health field. Finally, content aspects were evaluated: main category, presence of references to dietary individuality, indication of health care, existence of commercial purpose and its type, indication of specific diets or supplements, mention of quantities or recommendations, body exposure, presence of promises of results, and use of sources for content construction. Results: A total of 106 videos were included. Most videos were produced by creators without professional identification or credentials. The majority presented the creator's own diet, often without describing individual needs or professional guidance, and were associated with body exposure and promises of results. Conclusion: These findings demonstrate the risk of disseminating inaccurate information and highlight the importance of professional involvement in sharing safe and high-quality content, prioritizing user safety.
The study aimed to analyze the profile and level of knowledge of weight training practitioners in Montes Claros-MG about intermittent fasting. It is about a descriptive, quantitative, and crosssectional research conducted with 103 individuals of both sexes, aged 18 years or older. Data collection was carried out using a structured questionnaire, applied online and analyzed using SPSS software version 29.0. They were observed a predominance of female sex (58.3%) and a high level of education (93.2% with completed or incomplete higher education). Most participants (99%) reported to know about intermittent fasting, however 52.4% had never practiced it and 67% had not received professional guidance. Social media was the main source of information (36.9%), followed by healthcare professionals (34%). The main reason for adopting the practice was weight loss (29.1%), while 76.7% stated that they had a low or reasonable level of knowledge about the subject. The findings indicate that, despite the widespread promotion of intermittent fasting, the practice is mostly carried out without adequate nutritional guidance, which can lead to health risks and compromise physical performance. It is concluded that there is a need for greater professional guidance and food education focused on the safe and conscious use of intermittent fasting among weight training practitioners.
