For hamstring growth
For hamstring growth, lying leg curl rates well ahead on our research criteria: easier on the joints, more of the work on the hamstrings.
Good morning gives more stretch.
Both are good choices, and they train the hamstrings differently. Using both across your week covers more of the muscle than either alone: in studies, varied exercises grew parts of a muscle that one exercise missed. (Fonseca et al., 2014; Costa et al., 2021)
The research score comes from these, scored by hand from the studies. Lifter scores appear once an exercise has 10 ratings. How scores work
Good Morning. A big hamstring stretch, but the bar on your back makes it demanding on the lower back.
Lying Leg Curl. Still a strong choice; hips are extended, so the hamstrings are less stretched.
For hamstring growth, lying leg curl rates well ahead on our research criteria: easier on the joints, more of the work on the hamstrings. Good morning gives more stretch. Both are good choices, and they train the hamstrings differently. Using both across your week covers more of the muscle than either alone: in studies, varied exercises grew parts of a muscle that one exercise missed.
Lying leg curl is easier: it’s easy to learn, while good morning takes some practice.
Good morning needs a barbell and a squat rack, so for most people it’s a gym exercise. Lying leg curl needs a machine, so for most people it’s a gym exercise.
Lying leg curl: it rates Strong for joint and recovery cost in our research rubric, against Fair for good morning.