Position and orientation in space of bones during movement: experimental artefacts

Cappozzo, Aurelio; Catani, Fabio; Leardini, Alberto; Benedetti, M.G.; Croce, Ugo Della

doi:10.1016/0268-0033(95)00046-1

Cited by 625 publications

(432 citation statements)

References 12 publications

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“…It was demonstrated that raising heels had little influence on the metacarpophalangeal joints. The increase of flexion of both interphalangeal joints associated with heels raising was also demonstrated in vivo by radiographic evaluations [10,12,25]. The modelling and experimental design detailed here provided objective data which are consistent with previously published results.…”

Section: T T T Ti I I Im M M Me E E E ( ( ( (S S S S) ) ) )supporting

confidence: 86%

“…The sliding of the skin over bony landmarks may however change the results [51]. The contraction of the muscles and the tension of ligaments also generate external deformations [12]. The influence of skin movements on the accuracy of determination of these small amplitude movements was evaluated on the human knee [43].…”

Section: T T T Ti I I Im M M Me E E E ( ( ( (S S S S) ) ) )mentioning

confidence: 99%

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Concrete use of the joint coordinate system for the quantification of articular rotations in the digital joints of the horse

et al. 2000

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-A method is detailed allowing the computation of three-dimensional (3D) joint angles. Each joint of the equine digit is modelled as a sequence of three single axis rotary joints. The Joint Coordinate System was used; it involves a specific sequence of cardanic angles. The decomposition of the angles was chosen so that the three elementary angles coincide with the flexion/extension, passive abduction/adduction and lateral/medial rotations. The algorithms and kinematic procedures were described for the equine front digital joints. This method was tested in vitro on four forelimbs. For each limb, angle values were measured while the member was loaded by a press (from 500 to 6 000 N). These tests were repeated while a wedge raised one part of the hoof (toe, heel, lateral and medial sides) in order to induce modifications of the angular patterns of the joints. This method allowed a precise quantitative determination of 3D joint movements. The modifications occurring with the wedges are clearly identified and confirm some previously published semi-quantitative observations. Moreover, this method provides a way to collect objective data on the functional anatomy of joints and could be used to study connective shoeing thoroughly. It may be directly applied to other species and may be used by researchers interested in discreet articular movements, especially occurring in other planes than the sagittal one.horse / kinematics / digital joint / joint coordinate system / cardanic angles Vet. Res. 31 (2000) 297-311 297

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Section: T T T Ti I I Im M M Me E E E ( ( ( (S S S S) ) ) )supporting

confidence: 86%

Section: T T T Ti I I Im M M Me E E E ( ( ( (S S S S) ) ) )mentioning

confidence: 99%

Concrete use of the joint coordinate system for the quantification of articular rotations in the digital joints of the horse

et al. 2000

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“…Evaluation of the segmental rotations from skin markers is recognized to involve errors in the identification of vertebral positions, skin movement relative to the underlying vertebrae and deformability of vertebrae themselves [14,56,60,87,106]. Due to these inherent errors, the measurements were used to evaluate temporal variations of pelvic tilt and thorax rotation while the intervening lumbar segmental rotations were evaluated based on the partitioning of the difference between foregoing measured rotations using the relative values reported in the literature.…”

Section: Methodological Issuesmentioning

confidence: 99%

Analysis of squat and stoop dynamic liftings: muscle forces and internal spinal loads

2006

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Despite the well-recognized role of lifting in back injuries, the relative biomechanical merits of squat versus stoop lifting remain controversial. In vivo kinematics measurements and model studies are combined to estimate trunk muscle forces and internal spinal loads under dynamic squat and stoop lifts with and without load in hands. Measurements were performed on healthy subjects to collect segmental rotations during lifts needed as input data in subsequent model studies. The model accounted for nonlinear properties of the ligamentous spine, wrapping of thoracic extensor muscles to take curved paths in flexion and trunk dynamic characteristics (inertia and damping) while subject to measured kinematics and gravity/ external loads. A dynamic kinematics-driven approach was employed accounting for the spinal synergy by simultaneous consideration of passive structures and muscle forces under given posture and loads. Results satisfied kinematics and dynamic equilibrium conditions at all levels and directions. Net moments, muscle forces at different levels, passive (muscle or ligamentous) forces and internal compression/shear forces were larger in stoop lifts than in squat ones. These were due to significantly larger thorax, lumbar and pelvis rotations in stoop lifts. For the relatively slow lifting tasks performed in this study with the lowering and lifting phases each lasting~2 s, the effect of inertia and damping was not, in general, important. Moreover, posterior shift in the position of the external load in stoop lift reaching the same lever arm with respect to the S1 as that in squat lift did not influence the conclusion of this study on the merits of squat lifts over stoop ones. Results, for the tasks considered, advocate squat lifting over stoop lifting as the technique of choice in reducing net moments, muscle forces and internal spinal loads (i.e., moment, compression and shear force).

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“…Skeletal motion has been recorded with the use of markers affixed to extemal fixating devices for patients who have sustained fractures (Angeloni et al, 1993;Andriacchi and Toney, 1995;Cappozzo et al, 1996). This approach has been rarely used as fixators are typically attached to only one segment or patients may not exhibit normal gait due to the injury (Reinschmidt, 1996).…”

Section: Externa1 Fixator Devicesmentioning

confidence: 99%

Assessment of functional knee bracing: an in vivo three-dimensional kinematic analysis of the anterior cruciate deficient knee

Ramsey¹,

Lamontagne²,

Wretenberg³

et al. 2001

Clinical Biomechanics

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Position and orientation in space of bones during movement: experimental artefacts

Cited by 625 publications

References 12 publications

Concrete use of the joint coordinate system for the quantification of articular rotations in the digital joints of the horse

Concrete use of the joint coordinate system for the quantification of articular rotations in the digital joints of the horse

Analysis of squat and stoop dynamic liftings: muscle forces and internal spinal loads

Assessment of functional knee bracing: an in vivo three-dimensional kinematic analysis of the anterior cruciate deficient knee

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