training (HIIT) versus small-sided games (SSG) in soccer on both the physiological
responses and the mood state of players. Methods Sixteen professional soccer players took
part in the study (age: 24.1±0.9 years). Testing of players was conducted on separate days
in a randomized and counter-balanced order (each training session: 28 minutes: 4x4
minutes work with 3 minutes of passive recovery in-between). Effort: HIIT: intermittent 15-s …