Stretching exercises to maintain good postural health.
Scientific proof that the Bambach really works!
Effect of two seating positions on upper limb function in normal subjects
Gandavadi A, Ramsay J, James G (2005) Int J Ther Rehabil 12(11)
Many upper limb functions are performed in a sitting position. However, if seating is inadequate and poorly designed, back pain and reduced upper limb control may result. This study investigates pelvic posture and performance in an upper limb task. In total,15 normal healthy volunteers (aged 18–30 years) were seated in posterior and anterior pelvic tilt positions and performed a simple upper limb task. The parameters measured were electromyography of the lumbar paravertebral muscles, time taken to complete the task and the task error rate.The data were analysed by repeated measures analysis of variance (ANOVA) and post-hoc t tests. The results indicate that, when seated in an anterior pelvic tilt position, the error rate decreased (P=0.013) and the electrical activity increased (P=0.008). The time taken to complete the task was not significantly different. Since the error rate decreased when seated in the anterior pelvic tilt position, it might be concluded that this posture facilitated task skill. It is suggested that the increase in electrical activity is related to the increased load on the lumbar muscles in maintaining the posture. This study’s generalizability is limited, with small subject numbers and the use of a non-functional task. It is, however, a beginning in addressing the interrelationship between the seated posture and skilled upper limb performance.
Dying for a seat
Chris Langham starts a new six-part series that looks at the history, evolution and physical dangers inherent in one of our most common items of furniture. The chair!
Assessment of dental student posture in two seating conditions.
Gandavadi A, JRE Ramsay, FJT Burke,
University of Birmingham, 1. School of Health Sciences, 2. School of Dentistry
The research was approved by the ethics committee of the School of Health Sciences. The study was outlined to all the year 2 dental students at the University of Birmingham who were attending their first classes in the phantom head laboratory. Their consent for participation in the study was requested. Sixty students were randomly selected for the study. 30 students were given Bambach Saddle Seats and 30 students were given conventional seats.
The results indicated that there was a significant difference between the RULA scores for the two seats used and indicated that the students using conventional seats recorded significantly higher risk scores compared to the students using the bambach Saddle Seat, suggesting an improvement in posture when using the bambach Saddle Seat.