The below information is taken from the Army.mil website and associated  press releases. As additional information becomes available it will be posted here. Alternatively you can sign up for the Army press releases at https://www.army.mil/

— Leg tuck: Similar to a pullup, Soldiers lift their legs up and down to touch their knees/thighs to their elbows as many times as they can. This exercise strengthens the core muscles since it doubles the amount of force required compared to a traditional sit-up.

PROPOSED LEG TUCK STEPS

1. The test administrator will assist Soldier to the bar.
2. Come to a dead hang position; arms, body, legs are straight.
3. Flex at the elbow, hips, and waist to bring the knees up and touch both knees to both
elbows.
4. Return to the dead hang position.
5. Execute repetitions until voluntary volitional fatigue.
6. Record the score as the maximum number of repetitions.

RELEVANCE OF THE TEST
The leg tuck is a multi-purpose test of muscular strength and endurance with great occupational relevance to Soldiers. This test event assesses many anterior sagittal plane muscle groups to include the prime mover and agonist muscles related to Grip strength, shoulder and elbow flexion, and abdominal and hip flexion. These muscles assist Soldiers in all climbing tasks and in surmounting certain obstacles Like a vertical wall. This test event will require well-conditioned abdominal muscles that will assist Soldiers in load carriage and in injuries to the upper and lower back.

As More information becomes available it will be posted here