This randomized clinical trial aims to determine the effects of targeted isometric and isotonic hand strengthening exercises on hand function, dexterity, grip strength and grip endurance in competitive female badminton athletes aged 18-30 years. Participants will be randomly allocated into two groups receiving either isometric or isotonic hand strengthening exercise programs performed three times per week for six weeks. Outcome measures will be assessed at baseline, 3rd week and 6th week using Michigan Hand Outcomes Questionnaire (MHQ), Purdue Pegboard Test or Nine-Hole Peg Test, Hand Dynamometer Test and Sustained Grip Test.
Female badminton athletes
Age between 18-30 years
Right-hand dominant
Minimum 2 years of competitive badminton experience
History of upper limb injury in last 6 months
Cardiovascular or metabolic disorder limiting exercise
Medication affecting muscle performance
Current upper limb rehabilitation program participation
Parallel
Isometric hand strengthening program
Other interventionParticipants in this group will receive a structured targeted isometric hand strengthening program performed three sessions per week for six weeks
Isotonic hand strengthening program
Other interventionParticipants in this group will receive a structured isotonic hand strengthening program performed three sessions per week for six weeks
Hand Dexterity
Hand dexterity will be assessed using the Purdue Pegboard Test / Nine-Hole Peg Test to evaluate fine motor coordination and manual dexterity required for sport-specific hand movements.
Grip Strength
Grip strength will be measured using a calibrated hand dynamometer to assess maximal voluntary isometric contraction of the dominant hand.
Grip Endurance
Grip endurance will be assessed using the Sustained Grip Strength Test by measuring the duration for which participants can maintain 50% of their maximal voluntary contraction.
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