Final answer:
The Russian sport psychologist comparable to Coleman Griffith in terms of focusing on psychological preparation for athletes was Puni. They contributed to the field of Sport and Exercise Psychology, which includes the study of motivation and performance anxiety in sports as well as their broader effects on mental and emotional wellbeing.
Step-by-step explanation:
The Russian sport psychologist who focused on psychological preparation for athletic competition around the same time as Coleman Griffith was 1) Puni. Sport and Exercise Psychology explores the psychological aspects of sport performance such as motivation, performance anxiety, and the overall mental and emotional wellbeing that results from sports and physical exercise. This field of psychology also touches on the effects of mental processes on physical performance in various demanding situations, which shares commonalities with the field of Clinical Psychology.