Exercise and ED: What the Studies Show About Cardio and Erections

Below: what the trials tested, how big the effect was, cardio vs pelvic floor training, what the US health agencies say, and where an ED pill fits in. We report what the studies found and where the evidence is thin. A clinician should check your heart before you start hard exercise, and before any ED pill.

Why exercise and ED are linked

An erection is a blood flow event. Blood has to rush into the penis and stay there. Anything that stiffens or narrows blood vessels can make that harder.

The 2018 review puts it this way: "The leading cause of erectile dysfunction (ED) is arterial dysfunction, with cardiovascular disease as the most common comorbidity" (Gerbild et al., Sex Med 2018, PubMed). Arterial dysfunction means the arteries do not widen as they should. A comorbidity is another illness that often comes with it.

The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) lists "not getting enough physical activity" among the lifestyle habits that can lead to ED (NIDDK: ED causes, read 14 November 2026). It also names obesity, diabetes and high blood pressure, which exercise can help with too.

Cardio exercise for erectile dysfunction: the evidence

Cardio, also called aerobic exercise, raises your heart rate for a long stretch: brisk walking, running, cycling, swimming. Most ED exercise trials used it.

The 2018 review. It pooled 10 studies of men with ED linked to inactivity, obesity, high blood pressure, metabolic syndrome or heart disease. Its conclusion: training "should include supervised training consisting of 40 minutes of aerobic exercise of moderate to vigorous intensity 4 times per week" (Gerbild et al., Sex Med 2018, PubMed). Moderate means you can talk but not sing. Vigorous means you can only say a few words.

The 2026 pooled study. A newer analysis combined the results of 16 trials, with 1,477 men, where men were assigned at random to a diet or exercise program or to usual care. It found "a modest but significant improvement in erectile function", and the benefit showed up in diet-only, exercise-only and combined groups (Li et al., J Sex Med 2026, PubMed). The authors rated the certainty of the evidence as moderate.

The average gain in that study was a little over 2 points on the erection questionnaires the trials used. That is noticeable for some men, but smaller than what an ED pill usually does. Exercise is a way to help the cause; it is not a quick fix for tonight.

Weight loss plus exercise: the best-known trial

The most cited trial ran for 2 years in Italy. It took 110 obese men with ED and assigned half at random to a program to lose weight and move more. The other half got general advice.

Activity in the program group rose from 48 to 195 minutes a week on average. The result: "Lifestyle changes are associated with improvement in sexual function in about one third of obese men with erectile dysfunction at baseline" (Esposito et al., JAMA 2004, PubMed). In numbers, 17 men in the program group scored above the trial's cutoff for ED, against 3 in the advice group.

Two things limit this trial. All the men were obese and had no diabetes or high blood pressure. And diet and exercise were tested together, so we cannot say how much came from exercise alone.

Pelvic floor exercises

The pelvic floor is the sling of muscle between your legs. These muscles squeeze around the base of the penis and help keep blood in. Training them is a different kind of exercise from cardio.

A UK trial of 55 men tested pelvic floor training taught by a physiotherapist. After 6 months, "40% of men had regained normal erectile function, 35.5% improved but 24.5% failed to improve" (Dorey et al., BJU Int 2005, PubMed). The study was small and run in one setting. A physiotherapist can teach the right muscle; many men squeeze the wrong one at first.

Cardiovascular exercise for ED: how much do US guidelines say?

The NIDDK's ED page says: "Physical activity increases blood flow through your body, including the penis, and can help keep you at a healthy weight." It points to the national activity guidelines, which recommend "at least 150 minutes, or 2 hours and 30 minutes, of moderate-intensity physical activity, such as brisk walking, each week" (NIDDK: ED treatment, read 14 November 2026).

That is close to the 160 minutes the 2018 review found useful. The same NIDDK page also lists quitting smoking, cutting back on alcohol, eating well and keeping a healthy weight.

What the urology guideline says

The American Urological Association's ED guideline is built on shared decisions. Its public summary says "all patients should be informed of all treatment modalities that are not contraindicated, regardless of invasiveness or irreversibility, as potential first-line treatments" (AUA guideline, J Urol 2018, PubMed). Contraindicated means a treatment you must not use because of your health. Modalities means types of treatment.

In plain words, you do not have to try exercise first and wait months before a pill. Many men do both at once. The full guideline text is open to AUA members only, so we quote only the public summary.

Who should check with a doctor first

ED can be an early sign of heart disease, because the arteries in the penis are small and show trouble first. A man with ED who has not exercised in years, or who has chest pain or shortness of breath on effort, should see a doctor before hard training. The ED pill labels have the same concern: the Viagra label says not to use it "if sexual activity is inadvisable due to cardiovascular status" (DailyMed: Viagra label, read 14 November 2026).

Our erectile dysfunction causes guide covers the heart link and the other causes.

Exercise and an ED pill together

Exercise works on the cause over months. A pill works for hours. Many men use a pill while their fitness improves, and some need it less later. Generic sildenafil starts at $1.60 a dose at Strut Health, and generic tadalafil at $1.80 a dose at Rex MD, visit included, as checked November 14, 2026. Every program is ranked on Best online ED programs, and the prices are on our ED cost page.