Effects of Small-Sided Games and High-Intensity Interval Training on The Rating of Perceived Exertion in Soccer Players Across Competitive Levels: Controlling for Percentage of Heart Rate Reserve

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 4^th-5^th sets)	3 min between sets	2 min (5 min between 4^th-5^th sets)
Session duration	25 min	25 min	25 min	25 min
Intensity	Maximal effort	Maximal effort	80% V_IFT	95% V_IFT
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.