Anatomical Data for Analyzing Human Motion

Plagenhoef, Stanley; Evans, F. Gaynor; Abdelnour, Thomas

doi:10.1080/02701367.1983.10605290

Cited by 533 publications

(291 citation statements)

References 3 publications

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“…Leg length was measured by calculating the length from the center of pressure (Bullimore & Burn, 2006) to the center of the pelvis (Plagenhoef, Evans, & Abdelnour, 1983) as shown in Figure 3.…”

Section: Discussionmentioning

confidence: 99%

Relationship between Leg Stiffness and Kinematic Variables According to the Load while Running

Hyun¹,

Ryew²

2017

Korean Journal of Sport Biomechanics

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Section: Discussionmentioning

confidence: 99%

Relationship between Leg Stiffness and Kinematic Variables According to the Load while Running

Hyun¹,

Ryew²

2017

Korean Journal of Sport Biomechanics

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“…12 Anthropometric data (body mass, length of segments, standing height) were measured to estimate segment anthropometry. 13 The resultant net moment was calculated as the square root of the squared net moment components. A positive flexion-extension moment represents an extension moment.…”

Section: Methodsmentioning

confidence: 99%

Untitled

Burg

Kingma

Dieën

2003

Spine

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Study Design. A repeated measurements experiment of spinal loading in healthy subjects.Objectives. To test whether unexpected lateral mass placement increases low back loading and trunk movement when subjects are lifting a mass in upright posture.Summary of Background Data. Epidemiologic studies suggest that sudden, unexpected loading will lead to low back pain. Also, asymmetric loading is considered to be harmful to the spine. It can be anticipated that unexpected asymmetric loading will increase the risk of injury even more.Methods. Ten subjects lifted in an upright posture a crate, in which a mass of 10 kg was placed laterally at the left side either expectedly or unexpectedly. The crate reaction forces, body movements, and trunk muscle activity were measured. From these, the L5-S1 net moments and muscle forces were estimated.Results. Unexpected lateral placement of the mass caused no clear increase in peak low back loading. The stiffness of the trunk was lower in the unexpected condition, which, in combination with inadequate net moments produced, resulted in movement of the trunk to the side of the displaced mass.Conclusions. Unexpected lateral mass placement does not increase the compression force. Perturbed trunk movement and lower muscle forces indicated a decreased stability of the spine, which may imply an injury risk.

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“…Then, the estimated mass and center of mass values for the arms can be calculated as mupperarm = 3.25 kg, mfrontarm = 1.87 kg, mhand = 0.65 kg, |B0Gu| = u4 = 143.9 mm and |BGf| = f3 = 142 mm following Plagenhoef [5]. A simple construction of the mechanism is done with aluminum links and the link masses are taken as m2 = 0.…”

Section: Actuation Optimizationmentioning

confidence: 99%

“…The link lengths result in a double-rocker type four-bar mechanism. Forearm is attached to extension of coupler link BH, where H represents the center of mass of the hand and |BH| = h3 = 375.9 mm following Plagenhoef [5].…”

Section: Kinematics and Parametersmentioning

confidence: 99%

Design of a Cable-Driven Four-Bar Mechanism for Arm Rehabilitation

Eraz

Kiper

2016

New Trends in Mechanism and Machine Science

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Abstract. This paper presents the design of an assistive mechanism to be used for the rehabilitation of human arm. First the motions of two types of rehabilitation exercises are described. The motions are planar motions, so a planar four bar mechanism is designed. The synthesis problem is formulated as a three-position synthesis problem. Next, the actuation issue is addressed. Actuation via cables is preferred for better force transmission. The connection point of the cable to the mechanism is optimized considering the curvature of the coupler point curve. Finally, multiple pulleys are designed for enhancing force transmission.

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Anatomical Data for Analyzing Human Motion

Cited by 533 publications

References 3 publications

Relationship between Leg Stiffness and Kinematic Variables According to the Load while Running

Relationship between Leg Stiffness and Kinematic Variables According to the Load while Running

Untitled

Design of a Cable-Driven Four-Bar Mechanism for Arm Rehabilitation

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