Biofeedback Training on Shoulder Muscles Strength Post Mastectomy

Measure before and after shoulder muscles strength by hand held dynamometer

PURPOSE:The purpose of the study is to evaluate the effect of biofeedback on shoulder muscles
 strength post mastectomy.
 
 BACKGROUND:
 
 - The most common complications following mastectomy are pain, ipsilateral lymphedema of
 the upper limb (UL), reduced range of motion (ROM) of the shoulder, flexion and
 abduction is limited to 90°, and external rotation is limited to 40°, and there are
 postural changes
 
 - One of the most common complications after breast cancer surgery is a functional
 limitation of the upper body. Up to 67% of breast cancer patients experience arm or
 shoulder impairment, including pain, numbness, loss of strength, and reduced ROM, after
 surgery
 
 - Shoulder problems in breast cancer patients affect their daily activities, such as
 pulling a sweater overhead, fastening a bra, zipping up a back zipper, reaching
 overhead, and carrying heavy bags.
 
 - Biofeedback is a mind-body technique in which individuals learn how to modify their
 physiology for the purpose of improving physical, mental, emotional and spiritual
 health. Much like physical therapy, biofeedback training requires active participation
 on the part of patients and often regular practice between training sessions. Clinical
 biofeedback may be used to manage disease symptoms as well as to improve overall health
 and wellness through stress management training. Research has shown that biofeedback
 interventions are efficacious in treating a variety of medical conditions, and many
 Americans are turning to biofeedback and other less traditional therapies for their
 (Dana et al., 2010).
 
 HYPOTHESES: null hypothesis
 
 RESEARCH QUESTION: Does biofeedback give effect on shoulder muscles strength post mastectomy?