Effect of Focal Vibration Within a Multicomponent Exercise Program for Older Women With Osteoporosis a Single-blind Clinical Trial

Summary

The high annual incidence of osteporosis and its high prevalence , means that more and more resources are being devoted to its diagnosis, prevention and treatment in primary care. This pathology is defined as a skeletal disorder characterized by an alteration in bone strength, mainly reflecting a poor integration of bone density and quality.

The reduction of the mass and the alteration of the microstructure of osteoporotic bone lead to an increase in its fragility and an increase in the risk of suffering bone fractures. If we add to this the alterations in balance observed in older people, the possibility of fracture and increased fragility increases. It is estimated that every 3 seconds there is an osteoporotic fracture and it is considered that every year 8.9 million fractures of this type occur worldwide. Fragility fractures are estimated to be associated with significant morbidity and mortality. In the case of hip fracture as a consequence of osteoporosis, only 30-45% of surviving cases recover pre-fracture functional status and 32-80% suffer some form of significant dysfunction, thus representing a high economic and social cost.

Associated with osteoporosis, numerous studies have also observed a decrease in strength and/or muscle mass (sarcopenia), thus increasing the fragility and deterioration of the patient suffering from osteoporosis. Tokeshi et al. observed that patients with osteoporotic fractures had less muscle mass compared to patients without osteoporosis. Hoo Lee and Sik Gong describe that lower extremity muscle mass and loss of grip are closely related to the occurrence of an osteoporotic vertebral fracture and numerous investigations show the relationship between grip strength and osteoporotic fractures in the elderly.

For the diagnosis of osteoporosis, double beam X-ray densitometry (DEXA) is used and osteoporosis is considered to be present when the osteoporosis values are below 2.5 standard deviations (SD) of the peak bone mass, the maximum value reached in young women.

At the therapeutic level, pharmacology is the treatment recommended in clinical practice guidelines. However, due to poor adherence and adverse effects, the recommendation of physical activity programs is becoming more and more popular to increase mineral density and bone quality, either as adjuvant treatments or as the treatment of choice.

Various research and clinical guidelines recommend the use of therapeutic exercise as part of the treatment of osteoporosis. The National Osteoporosis Foundation of the United States concludes that the practice of exercise improves, among other benefits, the quality of bone mass. Likewise, different systematic reviews have shown that multicomponent training in older people is effective in preventing or maintaining bone mass, especially when such exercises are performed with high load or high impact or when performed by postmenopausal women.

Along these lines, the American College of Sports Medicine and recent research demonstrates how strength work at moderate to high load intensity can not only stimulate bone metabolism, but also improve the quality of life of those who practice it.

But in spite of the bone benefit observed with high loads for bone tissue, not all elderly people can do it, either because of the fragility that many of them present, or because of the mechanical stress that this type of exercise produces in their joints. For this reason, one of the possible alternatives that we have found for some decades is training through the use of global vibration (GV) or body vibration through the use of vibrating platforms. This type of vibration generally starts in the extremities and the limbs themselves are used as a sounding board for the vibrational stimulus to the rest of the body. This type of equipment has allowed a less demanding training from the articular point of view in a less demanding approach to other exercise programs in patients and has shown significant improvements in bone formation rate, bone mineral density (BMD), trabecular structural and cortical thickness in osteporotic bone tissue.

But despite the wide use of vibrating platforms for training in elderly people, it is not free of contraindications such as patients with recent fracture, deep vein thrombosis, osteosynthesis of lower limbs, hip prosthesis, aortic aneurysm or diabetic foot injury, for this reason have emerged focal vibration devices (VF). This tool allows the application of the vibratory stimulus in a specific and repeated way in a part of the body; as well as the control of the amplitude that reaches a certain tissue avoiding the disadvantages of the vibratory platforms in which the region and the tissue to be treated cannot be selected.

Conditions

• Osteoporosis
• Osteoporosis, Postmenopausal

Interventions

OTHER

Focal Vibration

This group will receive a multicomponent exercise program based on specific literature for effective training. In addition, this group will perform the strength and endurance exercises with focal vibration on the vastus internus, externus and biceps femoris. There will be 2 sessions per week, with a duration of 60 minutes per session and a treatment duration of 6 months.

OTHER

Control Group

This group will receive the same multicomponent exercise program than the other group based on specific literature for effective training. There will be 2 sessions per week, with a duration of 60 minutes per session and a treatment duration of 6 months.

Sponsors & Collaborators

• Universitat Internacional de Catalunya

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

60 Years

Max Age

75 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2022-12-01

Primary Completion

2024-04-01

Completion

2024-05-01

Countries

• Spain

Study Locations