Karl J. Obrant

Association between 25-hydroxy vitamin D levels, physical activity, muscle strength and fractures in the prospective population-based OPRA Study of Elderly Women

Paul Gerdhem, Karin Ringsberg, Karl J. Obrant et al. · Osteoporosis International · 2005 · 379 citations

Physical Activity, Kinesiology, Aging +11

Biochemical Markers of Bone Metabolism and Prediction of Fracture in Elderly Women

Paul Gerdhem, Kaisa K. Ivaska, Sari L Alatalo et al. · Journal of Bone and Mineral Research · 2004 · 286 citations · Full text

Increasing age-adjusted risk of fragility fractures: A sign of increasing osteoporosis in successive generations?

Karl J. Obrant, Urban Bengnér, Olof Johnell et al. · Calcified Tissue International · 1989 · 229 citations

Bone Disease, Skeletal Trauma, Aging +8

Pregnancy and Lactation Confer Reversible Bone Loss in Humans

Caroline Karlsson, Karl J. Obrant, Magnus K. Karlsson · Osteoporosis International · 2001 · 215 citations

Bone Disease, Infertility, Lactation +11

Circulating levels of vitamins K1 and K2 decreased in elderly women with hip fracture

Stephen Hodges, Kristina Åkesson, Philippe Vergnaud et al. · Journal of Bone and Mineral Research · 1993 · 206 citations