The Devil In The Details
To improve positiion this athlete could try to externally rotate her hands outward, open her chest and retracting her shoulder blades, which would put her in a more stable and stronger pressing position.
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Workout:
With a continuously running clock, perform the following movements each minute, adding one rep to each exercise every minute.
3 Box jumps
4 Kettlebell swings
5 Wall ball shots
Once you fail to complete all the repetitions within the minute, start back at 3, 4, 5 until 20 minutes is up.