Older Age Is Associated with Lower Optimal Vibration Frequency in Lower-Limb Muscles During Whole-Body Vibration
MetadataShow full item record
Objective = The aim of this study was to compare the optimal vibration frequency (OVF), which corresponds to maximal electromyographic muscle response during whole-body vibration, between young, middle-aged, and older women in four muscles of the lower-limbs. Design = OVF was measured as the frequency corresponding to maximal root mean square of the surface electromyogram (RMSmax) during a continuous incremental protocol, with a succession of vibration frequencies from 20 to 55 Hz (A = 2 mm), on the vastus lateralis, vastus medialis, rectus femoris, and gastrocnemius lateralis muscles of the dominant lower-limb. Seventy-eight women were divided into three age groups, that is, young, 21.6 ± 2.4 yrs; middle aged, 43.0 ± 5.2 yrs; and older, 74.2 ± 6.0 yrs. Results = OVF in the vastus medialis was lower in the older women than in the middle-aged and young women, whereas OVF in the vastus lateralis was lower in the older than in the young women. There were no differences in OVF between muscles within each group. RMSmax was higher in the older than in the young women in all muscles. Conclusions = Age range should be taken into consideration when determining OVF because it decreases with age. Properly individualizing the vibration protocol might greatly influence neuromuscular effects of vibration training.
American Journal of Physical Medicine & Rehabilitation;
Carlucci, F., Orlando, G., Haxhi, J., Laudani, L., Giombini, A., Macaluso, A., Pigozzi, F. and Sacchetti, M. (2015) 'Older age is associated with lower optimal vibration frequency in lower-limb muscles during whole-body vibration', American Journal of Physical Medicine & Rehabilitation, 94(7), pp.522-529
Copy not available from this repository.
Article published in American Journal of Physical Medicine & Rehabilitation available at https://doi.org/10.1097/PHM.0000000000000193
- Sport Research Groups 
Showing items related by title, author, subject and abstract.
Mair, J.L.; Laudani, Luca; Vannozzi, G.; De Vito, G.; Boreham, C.; Macaluso, A. (Springer, 2014-05)Purpose = An understanding of the neuromechanical responses to bench stepping with external loading is important for exercise prescription, especially in older women who are more at risk than men for disability. This study ...
Mechanisms of head stability during gait initiation in young and older women: a neuro-mechanical analysis Maslivec, Amy; Dewhurst, Susan; Vannozzi, Giuseppe; Macaluso, Andrea; Laudani, Luca (Elsevier, 2017-11-23)Decreased head stability has been reported in older women during locomotor transitions such as the initiation of gait. The aim of the study was to investigate the neuro-mechanical mechanisms underpinning head stabilisation ...
Rum, Lorenzo; Laudani, Luca; Macaluso, Andrea; Vannozzi, Giuseppe (Elsevier, 2017-10-25)Transitory tasks, such as gait termination, involve interactions between neural and biomechanical factors that challenge postural stability and head stabilization patterns in older adults. The aim of the study was to compare ...