Biomechanical analysis of the three recommended breastfeeding positions.

Background: For maternal and infant benefits, cradle, cross-cradle and football hold positions have been recommended and widely utilized by mothers during breastfeeding (BF) tasks. There is paucity of data on the biomechanical costs of these BF positions.

Objective: This study evaluated the trunk lean angles and electromyographic (EMG) activities of the trunk muscles during these BF positions.

Electromyographic activity of the neck muscles: Effects of varying standing height-derived teaching board heights.

Background: Despite the increasing emergence of modern facilities, the ancient practice of writing on a teaching board is still common in the teaching profession. Ergonomic guidelines of this practice are required for the prevention of work-related neck musculoskeletal disorders inherent of teachers.

Objective: This study investigated the effects of varying teaching board heights on the activities of the neck muscles.