This study aimed to evaluate the effects of a postural sway-meter-based balance training program on balance, functional performance, and cognitive outcomes in adults aged 50 and older.
This single-blind, randomized controlled trial involved community-dwelling adults aged 50 and older, randomly assigned to one of four groups. The first group participated in balance training using a sway-meter with auditory feedback, set at 75% of their baseline stability limits. The second group engaged in a sit-to-stand exercise program, while the third group received a combined intervention of balance training and sit-to-stand exercises. The control group participated in a knowledge session. All interventions were conducted as 30-minute sessions, three times per week, for four weeks. Balance was assessed using the sway-meter during quiet stance and leaning. Functional performance was measured using the Multi-Directional Reach Test (MDRT), muscle morphology via ultrasound, and cognitive performance through the Trail Making Tests (TMT) A & B and hand/foot reaction time assessments.
After the four-week intervention, significant differences were observed between groups in knee extensor strength/body mass and hand grip strength/body mass. Notable differences in functional and balance outcomes were evident. The balance training group demonstrated significantly greater improvements in lower extremity muscle strength, as measured by the Five-Time Sit-to-Stand Test, compared to the sit-to-stand exercise group (p=0.005). Additionally, the balance training group exhibited a significantly higher increase in functional balance performance, indicated by greater backward reaching distance, compared to the group that received both balance training and sit-to-stand exercises (p=0.021).
This study demonstrates that balance training using a postural sway-meter, both as a standalone intervention and combined with sit-to-stand exercises, can significantly improve lower extremity muscle strength and functional balance performance in adults aged 50 and older.
• Integration of Technology-Assisted Balance Training: The use of a postural sway-meter for balance training in adults over 50 is both feasible and safe, suggesting that such technology can be integrated into routine clinical practice for fall prevention programs. This tool provides immediate feedback, which can enhance patient engagement and motivation, while improving balance and functional outcomes in older adults.
Postural sway meter
Physical performance
