Internal Oblique and Transversus Abdominis Muscle Fatigue Induced by Slumped Sitting Posture after 1 Hour of Sitting in Office Workers.

Background: Prolonged sitting leads to low back discomfort and lumbopelvic muscle fatigue. This study examined the characteristics of body perceived discomfort and trunk muscle fatigue during 1 hour of sitting in three postures in office workers.

Methods: Thirty workers sat for 1 hour in one of three sitting postures (i.

Perceived body discomfort and trunk muscle activity in three prolonged sitting postures.

[Purpose] This study aimed to investigate the perceived discomfort and trunk muscle activity in three different 1-hour sitting postures. [Subjects] A repeated-measures design study was conducted on 10 healthy subjects. [Methods] Each subject sat for an hour in three sitting postures (i.

Control strategies to re-establish glenohumeral stability after shoulder injury.

Background: Muscles are important "sensors of the joint instability". The aim of this study was to identify the neuro-motor control strategies adopted by patients with anterior shoulder instability during overhead shoulder elevation in two planes.

Methods: The onset, time of peak activation, and peak magnitude of seven shoulder muscles (posterior deltoid, bilateral upper trapezius, biceps brachii, infraspinatus, supraspinatus and teres major) were identified using electromyography as 19 pre-operative patients with anterior shoulder instability (mean 27.

Participating in a virtual reality balance exercise program can reduce risk and fear of falls.

Objective: The objective of this study was to quantify the effectiveness of virtual reality balance games (VRBG) to decrease risk and fear of falls among women.

Methods: Thirty six community dwelling women aged 56 and above were randomly divided into experimental (exercises using VRBG focus on improving balance) and control (conventional balance exercises) groups. Both groups attended a twice 6 weekly exercise session for an hour.

Predictability of simple clinical tests to identify shoulder pain after stroke.

Objective: To identify simple diagnostic musculoskeletal tests that can be performed early after stroke to predict patients' likelihood of reporting early signs of hemiplegic shoulder pain.

Design: Case control.

Setting: Multicenter acute care hospitals.