TY - GEN AU - Bird,Marie-Louise AU - Hill,Keith D AU - Robertson,Iain K AU - Ball,Madeleine J AU - Pittaway,Jane AU - Williams,Andrew D TI - Serum [25(OH)D] status, ankle strength and activity show seasonal variation in older adults: relevance for winter falls in higher latitudes SN - 1468-2834 PY - 2013///0812 KW - Accidental Falls KW - prevention & control KW - Age Factors KW - Aged KW - Aged, 80 and over KW - Aging KW - Ankle Joint KW - physiopathology KW - Biomarkers KW - blood KW - Biomechanical Phenomena KW - Geriatric Assessment KW - Humans KW - Independent Living KW - Knee Joint KW - Linear Models KW - Longitudinal Studies KW - Middle Aged KW - Motor Activity KW - Muscle Strength KW - Muscle, Skeletal KW - Nonlinear Dynamics KW - Quadriceps Muscle KW - Risk Assessment KW - Risk Factors KW - Seasons KW - Tasmania KW - epidemiology KW - Time Factors KW - Vitamin D KW - analogs & derivatives KW - Vitamin D Deficiency N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1093/ageing/afs067 ER -