A method for inverse dynamic analysis using accelerometry

Bogert, Antonie J. van den; Read, Lynda; Nigg, Benno M.

doi:10.1016/0021-9290(95)00155-7

Cited by 75 publications

(21 citation statements)

References 13 publications

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“…27,28 Several studies have used accelerometry for dynamic analysis of hip joints. [29][30][31] The reliability, accuracy and reproducibility of evaluating hip instability using accelerometry have been demonstrated in previous studies. [8][9][10] We have described the use of accelerometry for the quantitative analysis of instability of the hip during walking.…”

Section: Methodsmentioning

confidence: 79%

Periacetabular osteotomy reduces the dynamic instability of dysplastic hips

Maeyama

Naito

Moriyama

et al. 2009

The Journal of Bone and Joint Surgery. British volume

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We compared the dynamic instability of 25 dysplastic hips in 25 patients using triaxial accelerometry before and one year after periacetabular osteotomy. We also evaluated the hips clinically using the Harris hip score and assessed acetabular orientation by radiography before surgery and after one year. The mean overall magnitude of acceleration was significantly reduced from 2.30 m/s 2 (SD 0.57) before operation to 1.55 m/s 2 (SD 0.31) afterwards. The mean Harris hip score improved from 78.08 (47 to 96) to 95.36 points (88 to 100). The radiographic parameters all showed significant improvements. This study suggests that periacetabular osteotomy provides pain relief, improves acetabular cover and reduces the dynamic instability in patients with dysplastic hips.

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Section: Methodsmentioning

confidence: 79%

Periacetabular osteotomy reduces the dynamic instability of dysplastic hips

Maeyama

Naito

Moriyama

et al. 2009

The Journal of Bone and Joint Surgery. British volume

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“…The forces exerted on the hip joint have been quantified for various sporting activities (Van den Bogert et al 1996, Nigg et al 1997. Controlled alpine skiing (long-radius turns on a flat slope) and cross-country skiing had the lowest loading of all skiing activities, lying in-between those associated with walking and running.…”

Section: Discussionmentioning

confidence: 99%

“…Biomechanical studies have demonstrated that certain types of skiing manoeuvers (e.g., short-radius turns on a steep slope, or skiing on moguls), can create heavy joint contact forces, 1.5-5 times higher than those encountered during walking or running. Cross-country skiing and downhill skiing, with moderate-radius turns made on flat slopes create stresses which lie somewhere in-between (Van den Bogert et al 1996, Nigg et al 1997.…”

mentioning

confidence: 99%

Alpine and cross-country skiing after total hip replacement: 2 cohorts of 50 patients each, one active, the other inactive in skiing, followed for 5-10 years

Gschwend

Frei

Morscher

et al. 2000

Acta Orthopaedica Scandinavica

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“…The equation of the sum of all moments on a body segment can be expressed by [10]. M was defined as the moment of the humerus (Eq.…”

Section: Score Algorithmmentioning

confidence: 99%

Outcome evaluation in shoulder surgery using 3D kinematics sensors

Coley¹,

Jolles²,

Farron³

et al. 2007

Gait & Posture

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A new method of scoring systems for the functional assessment of the shoulder is presented. 3D accelerometers and gyroscopes attached on the humerus were used to differentiate a healthy from a painful shoulder. The method was first tested on 10 healthy volunteer subjects with no shoulder pathology. The system was then tested on 10 patients with unilateral shoulder pathology (rotator cuff disease, osteoarthritis) before and after surgery (3, 6 months). In order to evaluate the system, nine tests based on the Simple Shoulder Test (SST) were performed on each shoulder for each patient. Three scores were defined: the P score was based on the angular velocities and accelerations of the humerus; the RAV score was based only on the angular velocities of the humerus; the M score was based on the sum of all moments of the humerus. Our kinematic scores indicated significant differences between baseline and follow-up ( p < 0.05) and differentiated between patients with varying severity of the same condition. We demonstrated a reliable technique of evaluating shoulder pathology and the results of surgery. #

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A method for inverse dynamic analysis using accelerometry

Cited by 75 publications

References 13 publications

Periacetabular osteotomy reduces the dynamic instability of dysplastic hips

Periacetabular osteotomy reduces the dynamic instability of dysplastic hips

Alpine and cross-country skiing after total hip replacement: 2 cohorts of 50 patients each, one active, the other inactive in skiing, followed for 5-10 years

Outcome evaluation in shoulder surgery using 3D kinematics sensors

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