Exercise may ward off nocturia in men

Sep 03 2014, 18:29 IST
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Nocturia is the most common and bothersome lower urinary tract symptom in men. (Reuters) Nocturia is the most common and bothersome lower urinary tract symptom in men. (Reuters)
SummaryMen who are physically active are at lower risk of nocturia, waking up at night to urinate...

Men who are physically active are at lower risk of nocturia, waking up at night to urinate, according to a new study.

Nocturia is the most common and bothersome lower urinary tract symptom in men. It can be due to an enlarged prostate known as benign prostatic hyperplasia (BPH) in which the enlarged prostate squeezes down on the urethra.

Other causes include overproduction of urine, low bladder capacity and sleep disturbances.

Nocturia increases with age and is estimated to occur in more than 50 per cent of men 45 and older.

The study led by Loyola University Chicago Stritch School of Medicine researcher, Kate Wolin, analysed data from a large, ongoing clinical trial called the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO).

Men ages 55 to 74 were eligible for the trial. The study included questions on BPH-related outcomes, including enlarged prostate, elevated PSA levels and nocturia. PLCO also asked men about physical activity and other lifestyle factors.

Wolin's analysis included 28,404 men in the PLCO trial who had BPH outcomes before enrolling in the study (prevalent group) and 4,710 men who had newly developed BPH (incident group).

Among men in the incident group, those who were physically active one or more hours per week were 13 per cent less likely to report nocturia and 34 per cent less likely to report severe nocturia than men who reported no physical activity.

Nocturia was defined as waking two or more times during the night to urinate; severe nocturia was defined as waking three or more times to urinate.

"Combined with other management strategies, physical activity may provide a strategy for the management of BPH-related outcomes, particularly nocturia," Wolin said.

The study will appear in the Medicine & Science in Sports & Exercise, the official journal of the American College of Sports Medicine.

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