Those who have recently undergone implantable cardiac electronic devices implantation Those scheduled for implantable cardiac electronic devices implantation Individuals with implantable cardiac electronic devices

Not applicable- observational study

The Shoulder Pain and Disability Index (SPADI) will be used for assessment. The pain subscale comprises 5 items, and participants are asked to rate their pain over the past week during various movements using a Visual Analog Scale between 0 to 10 points. The disability subscale includes 8 items, assessing the level of difficulty experienced during different activities over the past week, also rated on a VAS from 0 (no difficulty) to 10 (unable to perform). Higher scores indicate greater pain and functional limitation. When the entire questionnaire is evaluated, a total score of 0 represents maximum well-being, whereas 130 represents the worst possible condition.

A universal goniometer will be used to assess the range of motion of the shoulder. Active shoulder flexion, abduction, internal rotation, and external rotation will be measured in accordance with standard assessment principles. Each movement will be measured three times, and the average value will be recorded in degrees.

Unsupported Upper Limb Exercise Test (UULEX):Participants will be seated on a chair with their knees touching the wall where the UULEX lines are displayed. The UULEX consists of 8 horizontal levels, each 84 cm in width and 8 cm in height, with 15 cm between the centers of each level. The lowest line corresponds to the participant's knee level. Participants hold a plastic bar weighing 0.2 kg at shoulder width and move it from the hips toward the different levels of the UULEX lines. Each movement starts and ends at the hip joint. The first level is performed for 2 min, and each subsequent level is performed for 1 min. Using a metronome, participants lift the bar 30 times per min. Once participants reach their max height, the 0.2 kg bar is replaced with a 0.5 kg bar, and participants continue lifting to max height. Subsequently, the weight is increased by 0.5 kg per min at the specified level, up to max of 2 kg. Participants are instructed to continue the test until symptom limitation.

Posture will be examined via the Corbin Postural Assessment Scale. The total points of the Corbin Postural Assessment Scale range from 0 to 28 points. A higher point represents worse posture.