Vibration Training (WBV)

What it is

There are two types of device. Side-alternating platforms tilt like a seesaw around a central axis, so that the legs are lifted alternately. Vertical platforms move up and down as a whole. The devices differ greatly in frequency and amplitude, and that is exactly what makes studies hard to compare.

Training is usually done in static positions such as a slight squat or with simple exercises, a few minutes per session. In studies with older people, participants usually came several times a week over a few months. Home devices are available cheaply; physiotherapy practices and gyms often have professional platforms.

How it is supposed to work

The oscillation stretches muscle and tendon abruptly, muscle spindles report this to the spinal cord, and the muscle contracts reflexively. This happens many times per second without you consciously exerting force. That is why the method is suitable for people who cannot manage conventional exercises.

At the same time, the balance system has to readjust constantly, which trains coordination and stability. For bone, the idea relies on mechanical stimuli to which bone cells respond by building bone. In humans, however, the bone effects turn out to be considerably smaller than hoped.

What to look out for

Reputable providers work with an introduction, slightly bent knees and short sessions, and increase slowly. Stability matters more than speed: anyone who feels unsteady holds on to the handle. For advertising claims such as fat loss, cellulite removal or detoxification, we found no reliable studies.

What the studies show

Jepsen 2017 — falls and fractures

Meta-analysis of 14 randomized trials in adults aged 50 and over. The primary endpoints were fractures, falls and the proportion of people who fell. The fall rate fell significantly, rate ratio 0.67. Only 1 study provided fracture data, and the reduction was not significant. Overall, there was no effect on bone density.

Yin 2024 — bone density after menopause

Overview of 15 systematic reviews, 12 of them meta-analyses. 13 were rated as critically low in methodological quality. Overall, vibration showed no significant benefit for bone density; the authors advise against using it for that purpose, but consider a contribution to maintaining bone possible.

Beom 2026 — sarcopenia

6 randomized trials with 202 older people with muscle wasting. The primary endpoint, leg strength, improved with a standardized effect size of 0.50, as did physical performance. Muscle mass did not increase.

Where the data stop

Bone is the weakest part of the story. Older overviews found no overall effect on bone density; a newer meta-analysis of 14 studies with 1,447 participants saw small gains at individual measurement sites of the hip and in parts of the lumbar spine, not at the total hip. Whether this prevents fractures is open, because fractures were practically not studied.

Vibration does not build muscle mass, and for pure strength, conventional strength training is superior. The studies use very different frequencies, amplitudes and devices, so no best protocol can be derived. And only some of the reviews recorded side effects at all.

Status, approval and legal

Vibration platforms are freely available for sale and are used in gyms, physiotherapy practices and at home. Vibration training is not provided for as a separate service covered by statutory health insurance; in physiotherapy it can be part of a prescribed treatment, usually as an add-on. For fall prevention and osteoporosis, strength and balance training remain the foundation. There, vibration is an option for people who find other exercises difficult.

Safety

No serious side effects occurred in the overviews, but only 5 of 15 reviews reported on them at all. Reliable figures on milder complaints such as tingling, dizziness or muscle soreness therefore do not exist. Caution applies in acute thrombosis, acute joint or disc problems, after recent surgery and during pregnancy; in those cases the decision belongs in the hands of a physician. The head and upper body should not receive the oscillation undamped, which is why you train with slightly bent knees. Anyone who feels unsteady holds on to the handle, because for people at risk of falling in particular, a fall from the platform is the most obvious risk.

Sources

• Jepsen et al., BMJ Open 2017 (falls and fractures, meta-analysis)
• Yin et al., BMC Womens Health 2024 (bone density, overview of reviews)
• Beom et al., Sci Rep 2026 (sarcopenia, meta-analysis)
• Xing et al., Arch Phys Med Rehabil 2026 (frequency, network meta-analysis)
• Chen et al., BMC Musculoskelet Disord 2026 (bone density in older people)
• Peng et al., PeerJ 2025 (knee osteoarthritis, umbrella review)
• Lam et al., Maturitas 2012 (balance and mobility)