3.2 RESEARCH DESIGN Burns and Grove (2003:195) define a research design as âa blueprint for conducting a study with maximum control over factors that may interfere with the validity of the findingsâ.
MotherNature.com states that weak nails can mean there are problems elsewhere in the body. Psoriasis, a condition of the skin that can lead to itching, can cause weak nails. Hyperthyrodism, which is an overactive thyroid gland, can also cause weakness. Anemia may also contribute to weak nails. In addition, it can signal a calcium deficiency.
All forms of hand arthritis can cause stiffness, swelling, pain, and deformity. Osteoarthritis sometimes causes bony nodules at the middle joint of the finger (Bouchardâs nodes) or at the end joint of the finger (Heberdenâs nodes) (see Figure 2).