aims: musculoskeletal disorders are common occupational hazards and disabilities in developing countries. this study was to assess postures and determine musculoskeletal disorders in employees of a water flow meter manufacturing factory in iran. materials & methods: in this descriptive analytical study that was done among workers of iran ensheab factory from water-counter manufacturing industry...

background :dysfunction in the kinetic chain caused by poor scapula stabilization can contribute to shoulder injuries and shoulder impingement syndrome (sis). the purpose of this study was to compare the effectiveness of two treatment approaches scapular stabilization based exercise therapy and physical therapy in patients with sis.   methods : the study is a randomized clinical trial in which ...

A standing posture looks like an inverted pendulum, and its stabilization mechanism has been catching scientists' attention for ages. In this note, the posture stability is delineated at the lowest level-mechanical model. The foot sole is simplified as a twisted spring to stable the posture. The critical spring coefficient is derived.

The ankle and foot complex play a critical role in maintaining erect posture, as also in adaptation to supporting surfaces, in correcting postural sway in single limb stance, in shock absorption and in transition of ground reaction force (GRF) in order to aid the push off during normal gait [1]. Functional variance and minimal biomechanical alterations in the ankle and foot complex in turn alte...

OBJECTIVES It has been difficult to monitor the pelvic position during actual daily life. However, recent developments in wearable device technologies, such as the LUMOback device, provide the possibility to evaluate habitual pelvic posture and time spent sitting during daily life. The current study aimed (1) to investigate test-retest reliability for habitual pelvic posture and time spent sitt...

Wearable electronics technology has become very popular in recent years, and it is advancing. An important application of this technology is in health monitoring. I present an application of wearable electronics for posture correction, utilizing inertial sensors attached to certain parts of clothing. When bad posture is detected, the wearer is notified. Posture data can be collected by a nearby...

BACKGROUND In the Global postural re-education (GPR) evaluation, posture alterations are associated with anterior or posterior muscular chain impairments. Our goal was to assess the reliability of the GPR muscular chain evaluation. METHODS DESIGN Inter-rater reliability study. Fifty physical therapists (PTs) and two experts trained in GPR assessed the standing posture from photographs of f...

The aim of the study was to compare head posture in young, adult emmetropes and corrected myopes during a reading task. Thirty-two (32) myopes (mean spherical equivalent: -3.46±2.35 D) and 22 emmetropes (mean spherical equivalent: -0.03±0.36 D) participated in the study. Of the myopes, 16 were progressing (rate of progression ⩾-0.5D over the previous 2 years), 12 were stable (changes of -0.25 D...

In this paper, we proposed an unsupervised posture modeling method based on Gaussian Mixture Model (GMM). Specifically, each learning posture is described based on its movement features by a set of spatial-temporal interest points (STIPs), salient postures are then clustered from these training samples by an unsupervised algorithm, here we give the comparison of four candidate classification me...

The paper is concerned with the problem of trajectory tracking control of a four-wheeled skid-steered mobile robot in case of non-zero initial position and course (posture) errors. Object of the research, its kinematics and dynamics were described. Structure of robot motion control system containing posture controller and drive controller is shown. Six solutions of the posture controller which ...