TABLE 2.

Characteristics of the training interventions combining SSG and other training method.

Study	Combination	Duration (w)	d/w*	Total sessions	Type of training	Format/pitch	Work duration*	Work intensity/description	Relief duration	Relief intensity	Sets*	Reps*	Recovery between sets (duration)	Recovery between sets (intensity)
Castillo et al [26]	SSG+ endurance and speed training	6 (3w with SSG+ endurance and 3w with SSG+ speed)	4	24	SSG	3 vs.3, 4 vs.4 and 8 vs.8/25 x 20 to 64 x 40 m	3–6 min	ND	ND	ND	3	-	2–3 min	ND
					Endurance	Running	8 min	50-m maximal intensity 50-m active running	-	-	2	-	3 min	ND
					Speed	Running	ND	All-out	30 s	ND	3	4 of 15-m 4 of 30-m 4 of 40-m	3 min	ND
Harrison et al. [17]	SSG+ running-based HIIT	6	1	6	SSG	3 vs.3	16–24 min	ND	ND	ND	ND	ND	ND	ND
			1	6	HIIT	Running	15 s	90–95% VIFT	15 s	Passive	2	16–22	3 min	Passive
Köklü et al [27]	SSG+ running drills	-	-	-	SSG	3 vs.3 and 4 vs.4/ 20 x 30 and 25 x 32 m	3 min and 30 s	ND	-	-	4	-	2 min	Passive
					Running	Running	15 s before and 15 s after the SSG	80 m covered	-	-	4	-	2 min	Passive
Paul et al [25]	SSG+ running-based HIIT	4	4	16	SSG	4 vs.4/ 30 x 25 m	4 min		-	-	4	-	1 min	Passive
			1	4	HIIT	Running	15–30 s	110–120% VIFT	15 s	-	2	4–6 min (of 15–15 s and 30–15 s)	90 s	Passive
Rabbani et al [18]	SSG+ running-based HIIT	4	2	7	SSG	3 vs.3+GK/ 35 x 25 m	3 min	ND	-	-	2	-	3 min	Passive
					HIIT	Running	15 s	95–100% VIFT	15 s	ND	2	3 min (15–15 s)	3 min	Passive

ND: not described; HIIT: high-intensity interval training; VIFT: final velocity at 30–15 Intermittent Fitness Test; m: meters; GK: goalkeeper