Trapezius Muscle Activities in the Natural Head Posture and Corrected Head Posture During Wall-Slide Exercise

Healthy individuals between the ages of 18 and 35 who have not had any pain in the upper extremity for the last 6 weeks, have musculoskeletal system pathologies of the upper extremity and/or any surgery were included in the study. Individuals who have had pain in the shoulder area for the last 6 weeks, had shoulder injury and/or shoulder surgery, have neurological, rheumatological or systemic diseases and body mass index (BMI) greater than 30 kg/m2 were excluded. Participants were asked to perform wall-slide exercise with both natural head posture and corrected head posture, separately. During the wall-slide exercise, muscle activations of upper trapezius (UT), middle trapezius (MT) and lower trapezius (LT) were measured with surface EMG Noraxon MiniDTS system (Noraxon, USA, Inc, Scottsdale, AZ) in the ascending, stationary and descending phases of the exercise.