In addition to postural and core stabilization exercises, participants in the intervention group will perform diaphragmatic breathing exercises over an 8-week period, with sessions conducted twice weekly. Each session will last approximately 40 minutes.

Participants in the control group will receive a routine exercise program consisting of postural and core stabilization exercises for 8 weeks, performed twice weekly. Each session will last approximately 30 minutes.

In addition to postural and core stabilization exercises, participants in the intervention group will perform diaphragmatic breathing exercises over an 8-week period, with sessions conducted twice weekly. Each session will last approximately 40 minutes.

Pain intensity will be assessed using the Visual Analog Scale (VAS). Participants will be asked to mark the point on a 10-cm scale that best represents the intensity of their pain, where 0 indicates "no pain" and 10 indicates "the worst pain imaginable." The distance (in centimeters) from the 0 point to the participant's mark will be measured and recorded as the VAS score.

Participants' body awareness will be assessed using the Body Awareness Questionnaire (BAQ). The Turkish version of the questionnaire was adapted by Karaca (2017), who reported excellent internal consistency (Cronbach's α = 0.91). The BAQ is an 18-item self-report instrument designed to assess individuals' awareness of their own body and internal bodily sensations. Each item is rated on a 7-point Likert scale ranging from 1 ("Never") to 7 ("Always"). Total scores range from 18 to 126, with higher scores indicating greater awareness of bodily signals.