Effect of Adding a 2-Month Consequent Continuous and Interval Elliptical Aerobic Training to Once-Daily 5-mg Tadalafil Administration on Erectile Dysfunction in Obese Men

Abstract

Exercise (Ex) shares the first-line approach with pharmacological inhibitors of phosphodiesterase type 5 (PDE5-Is), including tadalafil, in the treatment of erectile dysfunction (ED) in obese men. The effect of elliptical training (ET) on ED was not questioned in the literature. This study aimed to clarify the effect of adding a 2-month consequent continuous and interval ET to once-daily 5-mg tadalafil administration on ED in obese men. Sixty obese men aged 34-56 years with ED were randomly assigned to the Ex group (n = 30) and the non-Ex group (n = 30). Both groups received 8-week oral tadalafil administration (five-milligram tablet, one time/day). Ex group only received a 1-h concurrent interval and continuous ET (three times/week for 2 months). Homeostasis model assessment of insulin resistance (HOMA-IR), insulin, body mass index (BMI), the circumference of the waist (WC), systolic blood pressure (SBP), high-density lipoprotein (HDL), diastolic blood pressure (DBP), triglycerides (TG), Five-Item Version of International Index of Erectile Dysfunction (IIEF-5), and fasting blood glucose (FBG) were screened before and after the trial. A significant statistical difference of all measures was ascertained from the within-Ex-group comparison (P < 0.05) while this significance was not achieved from the withincomparison of the non-Ex group (except IIEF-5 which showed a significant difference, P < 0.05). The established post-intervention comparison between Ex and non-Ex groups exhibited a non-significant difference in BMI, HDL, and WC while other variables exhibited a statistically-significant difference in favor of the Ex group. Adding 1-h consequent continuous and interval ET to tadalafil drug is a highly efficient procedure in improving ED than tadalafil alone in obese men. KeywordsExercise • Elliptical training • Interval training • Continuous training • PDE5-is • Tadalafil • Erectile dysfunction • Obesity • Egypt P.T.REC/012/002918 was the prior-documented approval number obtained from the Physical Therapy Faculty, Cairo University, after the agreement of its local ethical scientific board to conduct the trial protocol. Also, NCT04623840 was the public registered number obtained after the process of protocol registration on https://clinicaltrials.gov/.

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