The training sessions were supervised by the certified tennis coach Amritsar Lawn Tennis Association. The
subjects in the experimental group were given visual training exercises for 8 weeks, 3 days a week [22].
Each session was of 30 minutes' duration. The exercises included: swinging ball (Marsden ball)
exercises, reaction drills, Brock string training, Hart chart therapy, and near and far chart therapy. The
subjects in the placebo group were given a simple reading material and watched 3 televised tennis
matches/week for 8 weeks during the study period, while the subjects in the control group only underwent
daily practice sessions similar to those of the other two groups.
All the three groups participated in an equal number of practice sessions (50 serves/day, 50
volleys/day, 50 rallies/day, 2 matches/week) as their daily routine of 2 hours in the morning and evening
sessions for 5 days in a week for 8 weeks.