Table 2.

Basic characteristics of the included studies

First author	Year	Sample size		Age (years)	Intervention methods		Time (min)	Indicators
		Experimental group	Control group		Experimental group	Control group
Ari(1) [12]	2021	11 11	11	24.4 ± 5.1	Static Stretching	No sports	8 min	a
					Dynamic Stretching
Fortier [13]	2013	15	15	22.8 ± 2.0	Static Stretching	No sports	4.5 min	a
Paradisis [14]	2014	47 47	47	14.6 ± 1.7	Static Stretching Dynamic Stretching	No sports	6 min	a, b
Loughran [15]	2017	8	8	18–30	Static Stretching	No sports	10 min	a, b
		8			Static-Dynamic Stretching		20 min
Ryan [16]	2014	26	26	22.2 ± 1.3	Dynamic Stretching	No sports	6.7 min	a
Fletcher(1) [17]	2010	24	24	21.0 ± 0.3	Dynamic Stretching	No sports	NR	a
Curry [18]	2009	24	24	26.0 ± 3.0	Static Stretching	Mild aerobic	10 min	a
		24			Dynamic Stretching
Nagle [19]	2010	14	15	18–24	Static Stretching	No sports	12 min	a
		13			Dynamic Stretching
Baumgart [20]	2019	20	20	26.6 ± 2.7	Foam Rolling	No sports	10 min	a
Henning [21]	2019	19	19	M:21.5 ± 1.8	Foam Rolling	No sports	15 min	a
				W:20.2 ± 1.5
Franco [22]	2019	15	15	EG:24.1 ± 4.2	Foam Rolling	Mild aerobic	8 min	a
				CG:25.0 ± 4.7
Kopec [23]	2017	20	20	22.5 ± 4.0	Dynamic Stretching	No sports	3 min	a
		20			Foam Rolling
Oliveira [24]	2017	12	12	17.7 ± 0.9	Ballistic Stretching	No sports	15 min	a, b
		12			PNF Stretching
Unick [25]	2005	16	16	19.2 ± 1.0	Static Stretching	No sports	6 min	a
		16			Ballistic Stretching
Kruse [26]	2013	11	11	20.0 ± 1.6	Static Stretching	No sports	7 min	a
		11			Dynamic Stretching
Morrin [27]	2013	10	10	27.0 ± 5.0	Static Stretching	No sports	8 min	a
		10			Dynamic Stretching
		10			Static Dynamic Stretching
Yildiz [28]	2020	35	35	23.6 ± 1.3	Static Stretching	Mild aerobic	NR	a
Chaouachi [29]	2010	22	22	20.6 ± 1.2	Static Stretching	No sports	10 min	a, c
		22			Dynamic Stretching
		22			Static Dynamic Stretching
Christensen [30]	2008	68	68	20.5 ± 1.4	Dynamic Stretching	Mild aerobic	NR	a
		68			PNF Stretching
Fletcher(2) [31]	2010	27	27	20.5 ± 2.2	Static Stretching	Mild aerobic	6 min	a, b
		27			Dynamic Stretching
Pagaduan [32]	2012	29	29	19.4 ± 1.1	Static Stretching	No sports	7 min	a
		29			Dynamic Stretching
		29			Static-Dynamic Stretching
Byrne [33]	2014	29	29	20.8 ± 4.4	Dynamic Stretching	Mild aerobic	11 min	b
Bafghi [34]	2013	15	15	24.7 ± 4.6	Static Stretching	No sports	NR	a
		15			Dynamic Stretching
Shi Huang [35]	2022	14	14	22.6 ± 1.7	Dynamic Stretching	No sports	8 min	b
Baskurt [36]	2017	15	15	22.9 ± 1.3	Static Stretching	No sports	NR	b
Ari(2) [37]	2021	8	8	15.4 ± 1.1	Static Stretching	No sports	8 min	a
		8			Dynamic Stretching
		8			Static-Dynamic Stretching
Dallias [38]	2019	26	26	22.4 ± 3.7	Dynamic Stretching	No sports	NR	b
Utku [39]	2017	12	12	15.0 ± 0.5	Static Stretching	No sports	14 min	b
		12			PNF Stretching
		12			Ballistic Stretching
Jaggers [40]	2008	20	20	24.8 ± 3.0	Dynamic Stretching	No sports	NR	a
		20			Ballistic Stretching
Vetter [41]	2007	26	26	M:21.7 ± 1.2	Static Stretching	Mild aerobic	NR	c
		26		W:22.3 ± 1.6	Dynamic Stretching
Gelen [42]	2010	26	26	23.3 ± 3.2	Static Stretching	No sports	10 min	c
		26			Dynamic Stretching		10 min
		26			Static-Dynamic Stretching		20 min
Nelson [43]	2005	16	16	M:21.0 ± 2.0 W:19.0 ± 1.0	Static Stretching	No sports	NR	b
Adam [44]	2008	10	10	18–29	Static Stretching	Mild aerobic	NR	c
Marinho [45]	2017	16	16	22.0 ± 1.6	Static Stretching	No sports	8–10 min	b
		16			Dynamic Stretching
Perrier [46]	2011	21 21	21	24.4 ± 4.5	Static Stretching Dynamic Stretching	No sports	13.8 min	a

“NR” indicates not reported

“a” indicates countermovement jump (CMJ) heigh(cm)

“b” indicates 20-m sprint time; “c” indicates 30-m sprint time(s)