Lying Knee Tuck (Bottoms-Up Half Rep)
This lying knee tuck, labelled Bottoms-Up Half Rep in the demonstration, alternates a bent-knee position with a controlled extension of the legs.
Execution
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1
Lie on your back on a mat with your arms beside you and your legs together.
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2
Bend the knees and bring them towards your torso while keeping your head and shoulders supported.
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3
Extend the legs away again only as far as you can maintain control of your lower back.
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4
Return to the bent-knee position and repeat through the same manageable range.
Technique
Do not let your lower back arch as the legs move away. Keep the knees more bent or shorten the movement if needed.
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