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The improvement in quality of life (QOL) for the people with disabilities due to functional impairment in any part of the human body is obtainable through physical therapy rehabilitation. It is a medical field expertise that deals with examination, evaluation, and re-mediates impairments to promote mobility and functional ability (Khalid, Sarwar, Sarwar & Sarwar, 2015). These disabilities can be physical or psychosomatic ailment due to various facts like accidents, congenital or birth disorders or aging concern (Fathima, Shankar, & Thajudeen, 2016). The improvement and restoration of movement and functional ability is achieved through performing regular and repetitive physical therapy exercises. Physical therapy treatment is a kind of Range of Motion (ROM) exercises that can be offered to any people regardless of the age based on the pain, injury or disability with the aid of Physiotherapist. Engaging in training using ROM exercises supports the patient to emend joint functionality concerning ease off swelling, stiffness and pain (Bhatia, Bejarano, & Novo, 2013). The main aim of this rehabilitation therapy is assisting individual personals to restore ability to perform their basic tasks and physical activities independently and accomplish the maximum level of freedom in all level such as physically, emotionally, socially, and spiritually in order to maintain QOL in the society (Murphy, Shea, Cooney, Shiel, & Hodgins, 2006, pp. 14-15). This can be obtained by doing certain prescribed physiotherapy exercises regularly and repeatedly and will be more effective in the early intervention of disability.
Upper limbs (hands) are the most significant part of the human body to perform any physical actions like grasping, holding, and manipulating objects that involves complex coordination of muscle activity engaging every part of a hand from shoulder to fingers (Feys et al., 1998; Alonso et al., 2014). The disabilities of upper limb can happen due to post-stroke, post-traumatic, paralysis, aging, etc. (Fathima et al., 2016). Several studies from various agencies reported that the functionality of one-third of the human body is affected by occupationally impaired upper limb (Ojeda, Moreno, Ramırez, & Rodrıguez, 2014). Achieving the functional recovery of hands is rarely possible by few days of treatment in hospitals or by undertaking oral medicines. In most of the cases, there is a need for continuous physiotherapy treatment in order to make them functionally enable; independent and improve QOL, even after their discharge from hospital (Fathima et al., 2016). The lack of impulsive stimulation during functional activities leads to the reduction in probability of retrieving the upper limb fully functional. By nature, non-affected side is exclusively used by the patient to perform upper limb activities (Kwakkel, Kollen, Grond, & Prevo, 2003). Findings from research studies indicate that the paretic arm remains without function when measured after 6 months post stroke, whereas the complete functional recovery is demonstrated only 5% to 20% (Feys et al., 1998). Thus, it is more challenging to rehabilitate upper limbs.