The starting point
What are Kegel exercises? History and scientific origin
Dr. Arnold Kegel and his discovery (1948)
Dr. Arnold Kegel published his method in 1948 in the American Journal of Obstetrics and Gynecology, demonstrating that strengthening the pubococcygeus muscle (PC) reduces urinary incontinence. His work was pioneering: for the first time it was clinically demonstrated that an internal muscle could be trained voluntarily with measurable and reproducible results.
From postpartum rehabilitation to comprehensive male and female health
Although Dr. Kegel initially developed his protocol for women recovering postpartum, subsequent decades demonstrated that the pubococcygeus muscle exists in both sexes with identical training capacity. Today, more than 500 indexed clinical studies support Kegel exercises for men and women in areas ranging from continence to sexual function and surgical recovery.
Kegel exercises require no equipment, are invisible from the outside, and can be practiced anywhere. They are the first-line intervention recommended by the European Association of Urology (EAU), the American Urological Association (AUA), and NICE before any pharmacological or surgical treatment.
Anatomy
The pelvic floor: anatomy and function
The pubococcygeus muscle (PC): what it is and where it is
The pelvic floor is a group of more than 20 muscles and ligaments that form the base of the pelvis. Its function is to support the bladder, intestine, and reproductive organs. The main muscle is the levator ani, formed by the pubococcygeus (PC), the iliococcygeus, and the puborectalis. Together they form a musculofascial diaphragm that closes the abdominal cavity at its lower end. The PC muscle has type I (endurance) and type II (power) fibers, making it trainable with progressive strength protocols.
How to locate the pelvic floor — practical guide
The most clinically used identification technique is to imagine trying to stop the flow of urine midstream. The muscle that activates in that action is the pubococcygeus. Important: do not perform this exercise during actual urination, as it can impair complete bladder emptying. Once identified, the goal is to contract it in isolation, without engaging the glutes, abdomen, or thighs.
Four critical roles
Support of pelvic organs, control of urinary and anal sphincters, sexual function (erection, ejaculation, orgasm), and core stabilization alongside the transverse abdominis and the respiratory diaphragm.
Anatomical differences between men and women
Although pelvic musculature is essentially the same in both sexes, in men the pelvic floor supports the prostate, regulates erectile function, and controls ejaculation. In women it supports the uterus and plays a role during childbirth. The optimal training protocol differs in emphasis, not mechanism: the PC muscle responds equally to progressive training in both sexes.
Mechanism
How Kegel exercises work at the neuromuscular level
A Kegel is not just “squeezing.” It is a contraction-relaxation pattern that, with correct technique, produces measurable and lasting neuromuscular changes.
When you consciously contract the pubococcygeus, the motor pathways of the pudendal nerve are activated. The nerve signal causes synchronized contraction of the muscle fibers of the pelvic diaphragm.
With repeated training, the nervous system increases motor unit recruitment. The muscle grows in strength and endurance by the same mechanism as any strength training program.
Regular practice modifies reflex responses: the muscle learns to contract automatically when abdominal pressure increases (coughing, exertion), explaining the improvement in continence within weeks.
Strengthening improves core stability, reduces pressure on the prostate, optimizes pelvic vascular circulation, and has a documented positive effect on erectile function and ejaculatory control and on female sexual function, including orgasmic response.
Knowing how to relax is just as important as contracting. A hypertonic muscle is as dysfunctional as a weak one. A good protocol alternates phases of contraction and complete relaxation.
The most effective protocols combine slow contractions (type I strength) with fast contractions (type II power) and progressively increase the load — the same principle that governs any strength training program.
Clinical evidence
What does science say? Clinical studies and evidence
More than 500 clinical studies published in indexed journals support the efficacy of pelvic floor training. Science distinguishes results for men and women, with specific protocols for each profile. PrimeFlow Core (for men) and PrimeFlow Pearl (for women) apply these protocols in a specialized way for each profile.
Benefits for men — what the studies show
Benefits for women — systematic reviews
Medical institutions that endorse the method
What changes when you train
Documented impact of Kegel training
The pelvic floor influences more systems than you might think. A stronger muscle directly impacts your quality of life.
Reduction or elimination of stress and urgency incontinence episodes. The strengthened muscle responds faster to abdominal pressure increases.
Improved quality and duration of erection, greater ejaculatory control, and more intense orgasms through increased pelvic vascular circulation and muscle tone.
The pelvic floor is the lower component of the stabilizing core. Training it improves posture and reduces the risk of lower back injuries.
Strengthened pelvic musculature reduces chronic pressure on the prostate and improves urinary flow, relieving symptoms associated with mild benign hyperplasia.
In men with prostatectomy, preoperative pelvic floor training reduces continence recovery time by up to 60% faster according to clinical trials.
Like any muscle, the pelvic floor loses mass with age. Training from your 30s or 40s preserves function and delays or prevents future problems.
Pelvic musculature recovers tone after childbirth, reducing stress incontinence and improving sexual function. Studies recommend starting supervised training from 6 weeks postpartum.
Kegel training preserves muscle tone against the drop in estrogen associated with menopause and reduces the risk of uterine prolapse, a condition affecting 50% of women over 50.
Technique and types
How to do Kegel exercises correctly — technique and types
The first step is finding the right muscle. The second is applying the scientific protocol with the three types of contraction that demonstrate the greatest clinical efficacy.
Locate the pubococcygeus muscle
Imagine trying to stop the flow of urine midstream. The muscle that activates is the PC muscle. Do not do this during actual urination: it is only a location reference. Once identified, practice the isolated contraction without activating glutes, abdomen, or thighs.
Slow contractions: for endurance and control
Slowly contract the PC muscle and hold it for 6 to 10 seconds. Fully relax for the same amount of time before repeating. These contractions train type I fibers (slow endurance). Perform 10-12 repetitions per set.
Fast contractions: for reflex response
Contract and relax the PC muscle briefly and rapidly (1-2 seconds). They activate type II fibers and improve the reflex response to sudden abdominal pressure (coughing, sneezing). Perform 10-12 consecutive repetitions.
Elevator contractions: progressive control
Contract the PC muscle in 4-5 increasing levels of intensity, as if going up floors in an elevator. Hold 2-3 seconds at each level. Then descend progressively. Develops fine control and neuromuscular coordination.
Reverse Kegel: the complementary technique
Reverse Kegel works the active and controlled relaxation of the pelvic floor, the opposite of conventional Kegel. Gently push downward and return to the neutral position. Prevents hypertonia and complements strength training.
How many reps? The scientific protocol
Combine all three contraction types in 3 daily sets of 10-12 repetitions. The minimum cycle time (contraction + relaxation) is 6 seconds. This protocol is validated by Dr. Kari Bo, Norwegian School of Sport Sciences.
According to the protocol of Dr. Kari Bo (Norwegian School of Sport Sciences), the most effective training combines slow and fast maximum contractions, with weekly load progression. Daily consistency outperforms intermittent intensity. 5 minutes a day is enough to follow the complete protocol.
Source: Bo K. (2004). Pelvic floor muscle training is effective in treatment of female stress urinary incontinence, but how does it work? International Urogynecology Journal.
Results over time
How long do Kegel exercises take to work?
The science is clear: consistency beats intensity. This is an honest, evidence-based guide to what happens at each phase of training.
The initial goal is not strength but learning to correctly isolate the muscle. The brain establishes the voluntary control nerve pathways. Many people notice for the first time a greater body awareness in this area.
The muscle begins to respond faster and hold the contraction longer. The first perceptible improvements in mild urinary urgency may appear. Post-session muscle fatigue decreases, a sign of adaptation.
Studies place the first objective changes here: improvement in maximum contractile strength, reduction in incontinence episodes, and first improvements in sexual function. This is the threshold reached by 73% of men in clinical trials (Hay-Smith et al., Cochrane Database) and in 69% of women with stress incontinence (Wilson et al., BJU International).
The automatic reflex response consolidates: the muscle begins to activate on its own when pressure increases. Significant improvements in ejaculatory control documented from this point onward (Pastore et al., 2014). Training shifts from “effort” to “habit.”
With a solid foundation, volume can be reduced to 3-4 sessions per week to maintain results. Follow-up studies at 6-12 months show that benefits are sustained with minimal consistency.
YMYL Precautions
When not to do Kegel exercises? Contraindications and precautions
Kegel exercises are safe for the vast majority of people. However, there are specific situations where you should consult a specialist before starting or continuing training.
If you are in any of the following situations, consult a pelvic floor physiotherapist or your doctor before starting Kegel training:
Frequently asked questions
Frequently asked questions about Kegel exercises
Yes. Since 1948, multiple peer-reviewed clinical studies demonstrate their efficacy in treating urinary incontinence, improving erectile function, and ejaculatory control. Institutions such as Mayo Clinic, NIH, and the International Continence Society recommend them as a first-line treatment.
5 minutes a day is enough to get results. Clinical protocols establish 3 sets of 10-12 repetitions per day. Consistency is more important than the duration of each session.
Yes, and with great benefits. Studies show improvements in ejaculatory control, erectile function, and post-prostatectomy recovery. The pubococcygeus muscle exists in both sexes with the same training capacity.
Yes. A study by Pastore et al. published in the Journal of Sexual Medicine (2014) showed that 82.5% of participants significantly improved their ejaculatory control after 12 weeks of PFMT training.
They are safe for most people. However, in cases of pelvic floor hypertonia or chronic pelvic pain they can be counterproductive. If in doubt, consult a specialized physiotherapist before starting.
Conventional Kegel involves contracting the pubococcygeus muscle. Reverse Kegel works the controlled relaxation of that same muscle. Both are complementary: the first develops strength and endurance; the second prevents hypertonia and improves fine control.
Yes. No device or equipment is needed. The exercises are performed by contracting internal muscles that are not visible from the outside, making them a 100% private and discreet workout.
Yes, when it is designed with a scientific basis. PrimeFlow uses artificial intelligence to personalize the cadence, contraction duration, rest time, and progression of each session based on the user's level, replicating validated clinical protocols.
Yes. This is one of the best-supported uses in the scientific literature. Started from 6 weeks postpartum, Kegel training reduces stress incontinence and accelerates the recovery of sexual function. The International Continence Society recommends it as a first-line intervention in the postpartum period.
Yes. The drop in estrogen weakens the pelvic floor muscles and increases the risk of prolapse. Regular Kegel training compensates for this loss of tone and is recommended by the International Continence Society as a preventive intervention.