Table 2. Design and conditions of SSGs and HIIT training formats.
5v5 SSGs 1v1 SSGs Long HIIT Short HIIT
Work duration 4 × 4 min 8 × 1 min 4 × 4 min 8 × 1 min
Passive recovery 3 min between sets 2 min (5 min between 4th-5th sets) 3 min between sets 2 min (5 min between 4th-5th sets)
Session duration 25 min 25 min 25 min 25 min
Intensity Maximal effort Maximal effort 80% VIFT 95% VIFT
Pitch size 50 m × 35 m 25 m × 14 m N/A N/A
Total area 1750 m2 350 m2
Area per player 175 m2 175 m2
Goals 7-a-side goals 5-a-side goals
Goalkeepers Yes (excluded from analysis) Yes (excluded from analysis)
Task conditions No offside rule No offside rule
SSGs = Small-Sided Games; HIIT = High-Intensity Interval Training.