title: Differences in Gait Performance, Quadriceps Strength, and Physical Activity Between Fallers and Nonfallers in Women with Osteoporosis.
abstract: The present study should reveal differences in gait performance, quadriceps strength, and physical activity (PA) between fallers and nonfallers in women with osteoporosis. Forty-one women with osteoporosis (17 fallers, 24 nonfallers) participated. Gait analysis shows that fallers were walking with a slower walking speed (-9%, p = .033) and had a shorter stride length (-7%, p = .039). Moreover, fallers showed a decreased ankle power generation (-18%, p = .045). The quadriceps strength was decreased by 24% for fallers (p = .005) while PA showed no significant differences. Although a decrease in ankle power generation could have an effect on floor clearance for limb advancement in the swing phase, the causal relationship between spatiotemporal parameters (walking speed, stride length) and walking ankle joint power generation remains unknown and warrants further investigation. In conclusion, walking speed, stride length, ankle power generation, and quadriceps strength can be used to differentiate between fallers and nonfallers in women with osteoporosis.
authors.affiliation: Orthopedic University Hospital Friedrichsheim gGmbH, Frankfurt/Main, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Stief
authors.forename: Anna
authors.initials: A
authors.lastname: Schäfer
authors.forename: Lutz
authors.initials: L
authors.lastname: Vogt
authors.forename: Marietta
authors.initials: M
authors.lastname: Kirchner
authors.forename: Markus
authors.initials: M
authors.lastname: Hübscher
authors.forename: Christian
authors.initials: C
authors.lastname: Thiel
authors.forename: Winfried
authors.initials: W
authors.lastname: Banzer
authors.forename: Andrea
authors.initials: A
authors.lastname: Meurer
mesh_terms: D000058:Accidental Falls; D000368:Aged; D015519:Bone Density; D015444:Exercise / Q000502:physiology*; D005260:Female; D005684:Gait / Q000502:physiology*; D015577:Geriatric Assessment; D006801:Humans; D053580:Muscle Strength / Q000502:physiology*; D010024:Osteoporosis / Q000175:diagnosis / Q000503:physiopathology*; D004856:Postural Balance / Q000502:physiology*; D052097:Quadriceps Muscle / Q000503:physiopathology*; D011795:Surveys and Questionnaires