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Improved Balance and Walking Capacities after Tailored Balance Training with and without Superimposed Sensory
Marie Fabre1, Anastasia Theodosiadou2, AAnastasia Papavasileiou3
1Université Jean Monnet Saint-Etienne, Lyon 1, Université Savoie Mont-Blanc, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, FRANCE.
Purpose:
We investigated the impact of an 8-week tailored balance program, with or without superimposed sensory stimulation (local vibration [LV], and/or transcutaneous electrical nerve stimulation [TENS]), on balance and walking performance in older adults.
Methods:
Seventy-five healthy elderly participants (age 79.9 ± 3.9 years) were randomly assigned to one of four groups: postural exercises only ( n = 17), exercises with LV ( n = 19), exercises with TENS ( n = 19), and exercises with LV+TENS ( n = 20). For LV, TENS, and LV+TENS groups, proprioceptive stimulation targeted the triceps surae and tibialis anterior. Participants completed a baseline assessment including the Berg Balance Scale, Short Physical Performance Battery, 6-min walk test, 10-meter walk test, and Timed Up and Go test. A similar assessment was performed 8 weeks later, and after the 8-week tailored intervention, which consisted of two 1-h sessions per week. Balance and walking capacities were finally reassessed 8 weeks after training.
Results:
In all groups, reliability of the outcome measures was moderate to high between baseline and preintervention values (intraclass correlation coefficients >0.63). Postintervention, linear mixed-effects models revealed significant improvements in Berg Balance Scale and Short Physical Performance Battery scores (53.1 ± 2.4 and 10.9 ± 0.9 vs 54.9 ± 2.4 and 11.5 ± 0.9, P < 0.001), and reduced times for Timed Up and Go test (7.3 ± 1.7 s vs 6.6 ± 1.7 s, P < 0.001) and increased 10-meter walk test velocity (3.6 ± 0.7 m/sec vs 3.4 ± 0.7 m/sec, P = 0.004), with no group differences nor interactions. Benefits were partially maintained 8 weeks after training. The interventions did not affect 6-min walk test performance (525.5 ± 75.1 m vs 527.8 ± 74.1 m, P = 0.143).
Conclusions:
Tailored balance exercises alone significantly enhanced postural control and walking capacity in healthy older adults. Additional sensory stimulation provided no extra benefit, suggesting that for healthy older adults without major balance impairments, exercises alone may suffice to achieve meaningful functional improvements.
