Stiffness 72 Technology: general issues 59 History of engineering and technology 35 History of engineering & technology 20 human 19 Article 17 controlled study 13 Finite element method 12 Humans 12 Research & information: general 12 female 12 male 12 stiffness 12 arterial stiffness 11 Medicine and Nursing 9 biomechanics 9 Biomechanics 8 adult 8 middle aged 8 Biology, life sciences 7 Female 7 Male 7 Modal analysis 7 Numerical methods 7 Animals 6 Bolts 6 Deformation 6 Medicine 6 Numerical results 6 Stiffness matrix 6