The determination of the reduction in hand strength, expressed as a percentage, involves comparing an initial measurement to a subsequent measurement. The calculation is performed by subtracting the later measurement from the initial measurement, dividing the result by the initial measurement, and then multiplying by 100. For example, if an individual’s initial grip strength is 50 kg and a later measurement is 40 kg, the calculation would be: ((50 kg – 40 kg) / 50 kg) * 100 = 20%. This indicates a 20% reduction in hand strength.
Quantifying the decline in hand strength provides valuable insight into changes in physical health and functional capacity. Tracking these changes is crucial in monitoring disease progression, evaluating the effectiveness of interventions such as physical therapy, and assessing an individual’s overall well-being. Historically, grip strength has served as a simple, non-invasive marker of overall strength and a predictor of various health outcomes, including mortality and morbidity.