Concurrent validity, intra-rater and inter-rater reliability of GuruTva a handheld digital dynamometer which measures isometric hand grip strength in comparison with handheld Jamar dynamometer – A cross-sectional study.

This study is being conducted to check how accurate and reliable a new Indian-made digital device called GuruTva is for measuring hand grip strength The GuruTva device is compared to the Jamar dynamometer which is a widely accepted standard tool used in clinics to measure grip strength

A total of 150 healthy young adults between 18 and 25 years of age will participate in the study Each participant’s hand grip strength will be measured using both the Jamar and GuruTva devices The measurements will be taken by two different physiotherapists to check if the results remain consistent when tested by different people and at different times

The goal is to see whether the GuruTva device gives similar results to the Jamar device and whether it can be used confidently in clinical settings The study will also check if hand size has any effect on grip strength

This research may help improve the use of digital tools in physiotherapy for better and easier assessment of hand strength