Table 2.

Functional Progression for Hamstring Injuries

Phase 1
	Stairstepper/elliptical progression
	a) Stairstepper/elliptical 20-30 min
	b) 2 consecutive days without setbacks, progress to  phase 2
Phase 2
	Treadmill progression (15-30 min)
	a) Treadmill warm-up (3-6 mph)
	b) Progressive speed intervals (7-14 mph), increase in  0.5-mph increments 20 s run/20 s rest (7-10 mph), 10 s  run/15 s rest (10-14 mph)
	c) If a player has apprehension or pain before 14 mph,  work on a 1 min walking/1 min jogging program.  Choose a comfortable speed between 7-10 mph and  have the player jog 1 min and walk 1 min at 3.5 mph.
	d) If player completes 14 mph without hesitation and  jog/run for an additional 15 min with 1 min/1 min  then progress to phase 3.
Phase 3
	Field functional progression
	a) Jog 50 yards × 4
	b) Dynamics/stretching
	c) High knees 10 yards × 4
	d) Butt kicks 10 yards × 4
	e) A skips 10 yards × 4
	f) B skips 10 yards × 4
	g) Back pedal 5 yards × 4
	h) Lateral shuffle 10 yards both directions × 2
	i) Cariocas both directions × 2
	j) 50 yards accelerations (50%-75%) × 3
	k) 30 yards arc left 10, arc right 10, sprint straight  (50%-75%) 10 × 2
	l) 5-yard zigzags 25 yards × 2
	m) W drill, both directions
	n) Triangle drill both directions
	o) Combine short shuttle × 2
	p) Individual period specific to position
	q) If player can complete all aspects of progression  without hesitation and pain progress to phase 4
Phase 4
	Position-specific conditioning and progressive return to practice