Effect of nocturnal ingestion of melatonin on the static and dynamic balance in the elderly - 26/09/17
, Houssem Ksentini 2, Sameh Ghroubi 2, Mohamed Habib Elleuch 2
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Résumé |
Objective |
Aging is characterized by a musculo-articular fragility, which could impair postural stability and consequently increases the risk of fall. Since stability decreases during aging, several studies have shown that fall prevention is an effective strategy to reduce direct and indirect costs of care. The present study aimed to investigate the effect of nocturnal melatonin (10mg) ingestion on postural static (with double task) and dynamic balance.
Material/Patients and methods |
Twelve sedentary older adults voluntarily participated in this study. The experimental protocol consisted of two evaluation sessions after ingestion of 10mg of melatonin (MEL) or Placebo (PLA), the night before the tests. For each assessment session, static stability measurements with double task (counting from 0 to add 3 each time) and dynamic (lateral, antero-posterior) on the SATEL® force platform were performed in both conditions “open eyes” (OE) and “closed eyes” (CE).
Results |
Age, body mass and height of the participants were 58±5.74 years; 72.7±4.9kg and 1.69±3.78m, respectively. In the present study, static (bipedal with double task) and dynamic (lateral, antero-posterior) stability parameters were decreased significantly during the MEL session compared to the PLA session in the two conditions (EO, CE). For bipedal static balance, the results of this study showed a significant decrease in Long X and Long Y (29% and 30%, respectively) in the YO condition and (31%, and 33%) in the YF condition. Concerning the dynamic parameters stability in the antero-posterior axis, the results showed a decrease in the MEL session of 20% for long X and 14% for long Y in EO, and 32% for long X and 36% for long Y in the CE. For the lateral dynamic stability, the results also showed a decrease for the Long X and Long Y in the two conditions EO and CE.
Discussion/Conclusion |
In the present study, nocturnal ingestion of MEL (10mg) improves static and dynamic stability parameters. This improvement could be explained by the beneficial effect of MEL, since the decrease of melatonin in the elderly causes cognitive, vestibular and balance disorders.
Le texte complet de cet article est disponible en PDF.Keywords : Aging, Melatonin, Postural static balance, Postural dynamic balance
Plan
Vol 60 - N° S
P. e52-e53 - septembre 2017 Retour au numéro
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