TY - JOUR
PY - 2014//
TI - Vitamin D deficiency intensifies deterioration of risk factors, such as male sex and absence of vision, leading to increased postural body sway
JO - Gait and posture
A1 - Krause, Matthias
A1 - Anschütz, Wilma
A1 - Vettorazzi, Eik
A1 - Breer, Stefan
A1 - Amling, Michael
A1 - Barvencik, Florian
SP - 166
EP - 171
VL - 39
IS - 1
N2 - INTRODUCTION: Due to inconsistent findings, the influence of vitamin D on postural body sway (PBS) is currently under debate. This study evaluated the impact of vitamin D on PBS with regards to different foot positions and eye opening states in community-dwelling older individuals. METHODS: In a cross-sectional study, we assessed PBS in 342 older individuals (264 females [average age (±SD): 68.3±9.0 years], 78 males [65.7±9.6 years]). A detailed medical history and vitamin D level were obtained for each individual. Fall risk was evaluated using the New York-Presbyterian Fall Risk Assessment Tool (NY PFRA). PBS parameters (area, distance, velocity, frequency) were evaluated on a pressure plate with feet in closed stance (CS) or hip-width stance (HWS), open eyes and closed eyes. Statistical analysis included logarithmic mixed models for repeated measures with the MIXED model procedure to test the influence of vitamin D (categorized in <10μg/l, 10-20μg/l, 21-30μg/l, >30μg/l), foot position, eye opening state, age, sex and frequency of physical activity on PBS. RESULTS: Vitamin D was not an independent risk factor for falls experienced in the last 12 months. Nonetheless, PBS was higher in patients with vitamin D deficiency (<10μg/l) in HWS (A/P p=0.028 and area p=0.037). Additionally, vitamin D deficiency intensified the deleterious effects of male sex (distance p=0.002) and absence of vision (area p<0.001) on PBS. CONCLUSION: Independent risk factors for increased PBS like male sex and absence of vision are additionally compromised by vitamin D deficiency. Language: en
LA - en
SN - 0966-6362
UR - http://dx.doi.org/10.1016/j.gaitpost.2013.06.017
ID - ref1
ER -