This study evaluates how the trunk and proximal girdle muscles are affected in male patients with ankylosing spondylitis, compared to healthy controls.
Ankylosing spondylitis is a chronic, inflammatory rheumatic disease with an unclear etiology which causes back pain and affects the functionality of axial skeleton. Besides the effect upon axial skeleton, the disease also affects the peripheral joints. In most patients, tenuous affection of peripheral joints occurs however, in some others the disease causes impaired spinal mobility and articular instability. This causes proximal girdle muscles and trunk muscles of the patients to be exposed to excessively stress and in conclusion deformities develop. Maximum force generated by a muscle or muscle group directly effects the physical ability of an individual, and manual muscle dynamometers are used to directly evaluate the muscle strength. In this manner the investigators aim to evaluate trunk and proximal girdle muscles' powers in male patients with ankylosing spondylitis and analyze the correlation between muscle powers, and functionality and disease activity.
Study Type
OBSERVATIONAL
Enrollment
100
Patient performs a maximum truncal flexion laying supine on the bed with cap of muscle tester placed on sternum,
Patient performs a maximum truncal extension laying prone on the bed while the cap of manual muscle tester placed on vertebrae at the level of midline between superior angles of scapulae.
Patient performs a maximum cervical flexion sitting while the cap of manual muscle tester placed on the middle of the forehead.
Bezmialem University
Istanbul, Turkey (Türkiye)
Cervical muscle powers
Cervical flexion, extension, and lateral flexion muscle powers in kilograms as assessed with handheld dynamometer.
Time frame: 1 day
Truncal muscle powers
Truncal flexion and extension muscle powers in kilograms as assessed with handheld dynamometer.
Time frame: 1 day
Shoulder girdle muscle powers
Shoulder flexion, extension, abduction, internal rotation, and external rotation muscle powers in kilograms as assessed with handheld dynamometer.
Time frame: 1 day
Hip girdle muscle powers
Hip flexion, extension, abduction, internal rotation, and external rotation muscle powers in kilograms as assessed with handheld dynamometer.
Time frame: 1 day
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Patient performs a maximum cervical extension sitting while the cap of manual muscle tester placed on protuberantia occipitalis.
Patient performs a maximum cervical lateral flexions on right and left sitting while the cap of manual muscle tester placed on relevant pterion.
Patient performs a maximum shoulder flexion of the dominant side on upright while the cap of manual muscle tester placed on midpoint of the line between anterior aspect of acromion and anterior elbow.
Patient performs a maximum shoulder flexion of the dominant side on upright while the cap of manual muscle tester placed on midpoint of the line between posterior aspect of acromion and posterior elbow.
Patient performs a maximum shoulder internal rotation of the dominant side on upright while the cap of manual muscle tester placed on midpoint of the line between anterior elbow and wrist.
Patient performs a maximum shoulder external rotation of the dominant side on upright while the cap of manual muscle tester placed on midpoint of the line between posterior elbow and wrist.
Patient performs a maximum shoulder abduction of the dominant side on upright while the cap of manual muscle tester placed on midpoint of the line lateral aspect of acromion and lateral epicondyle.
Patient performs a maximum hip flexion laying supine on the bed while the cap of manual muscle tester placed on middle of the anterior thigh.
Patient performs a maximum hip extension laying prone on the bed while the cap of manual muscle tester placed on middle of the posterior thigh.
Patient performs a maximum hip abduction laying supine on the bed while the cap of manual muscle tester placed on middle of the lateral thigh.
Patient performs a maximum hip internal rotation laying supine on the bed while the cap of manual muscle tester placed on the midline between lateral condyle of femur and lateral malleolus.
Patient performs a maximum hip external rotation laying supine on the bed while the cap of manual muscle tester placed on the midline between medial condyle of femur and medial malleolus.
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