Research confirms the existence of gender-based differences regarding the high-risk sexual behaviour (non-use of condoms and casual partners) of young men and women. The objectives were to provide evidence for this association; to analyse the reasons why both sexes have sexual relations with casual partners and to ascertain the motives for condom use or non-use during casual sex. A cross-sectional study was performed on a sample of 900 participants, 524 males and 376 females. All participants were 15-29 (20.93 ± 4.071) years of age and came from four different centres (a university, two secondary schools, and a military base) in Melilla (Spain). The participants were given a socio-demographic survey as well as a psychometric text on high-risk sexual behaviour. The results found gender-based significant differences for sexual relations with penetration (p = 0.001), number of sexual partners (p = 0.001), and sexual relations with casual partners (p = 0.001). In all of these variables, male participants had higher percentages than female participants. Reasons for having casual sexual relations were also different for men and women, differences were found for the items, opportunity (p = 0.001), interest in knowing the other person (p = 0.015), physical excitement (p = 0.056) and drug consumption (p = 0.059). Regarding the reasons for consistent condom use with casual partners, there were differences for the item, my demand of a condom (p = 0.002). For the non-use of condoms with casual partners, differences were found for the items, I do not like to use condoms (p = 0.001) and condoms lessen sensitivity and reduce pleasure (p = 0.009). Men and women were found to have different high-risk sexual behaviours and practices. Of the motives for having sexual relations with casual partners, male participants considered opportunity and interest in knowing the other person to be more important than the female participants. Regarding condom use, the female participants’ demand to use a condom was a significant gender-based difference. In contrast to the young women, the male participants mostly justified not using a condom because it lessened sensitivity and reduced pleasure.

Objective: This work sought to evaluate a physical exercise program of moderate intensity in patients operated of bariatric surgery and its influence on muscle strength. Method: Randomized clinical trial, with an intervention group and a control group. Forty-three patients were operated of bariatric surgery. The intervention group was applied a program of moderate physical activity during six months. Grip strength and bioimpedance were measured at their baseline form, at one month, and six months after surgery. A bivariate study was conducted to observe variable changes. Results: Upon conducting Student´s t for independent samples in all the variables (weight, body mass index, grip strength, lean mass, fat mass, and metabolism), the result is that no significant differences exist between the intervention group and the control group with p > 0.05. Conclusion: A program of moderate physical activity lasting six months in patients intervened of bariatric surgery has no significant result in the development of muscle mass evaluated through manual dynamometry and bioimpedance.

Objective: To analyze the difference in the prevalence of sexually transmitted infections (STIs) between two time periods (2000–2007 and 2008–2014, with the latter period characterized by the economic crisis), as well as determine differences in sociodemographic factors, clinical care, and risk indicators. Methods: This was a retrospective, observational, and analytical study, reviewing 1437 medical records of subjects attending a specialized center in the province of Granada (Spain) for consultation associated with the presence or suspicion of an STI between 2000–2014. Data were collected on variables relating to the research objective. A descriptive and bivariate statistical analysis was performed by multiple logistic regression. Results: In the analysis comparing the presence of STIs between the crisis and non-crisis periods, the percentage of positive diagnoses reached 56.6% compared to 43.4% negative diagnoses during the non-crisis period, while the percentages were 75.2% and 24.8%, respectively, during the crisis period. This difference was statistically significant (p < 0.001) with an odds ratio (OR) of 2.21 after adjusting for age, sex, days since last unprotected sexual intercourse, and partners in the last year. Conclusions: There are significant differences in the prevalence of STIs between the study periods, which is consistent with the reports of some authors regarding the effect of the financial crisis on these conditions; however, it is worth considering other aspects that might explain the differences.