Speed endurance training is similar to speed or sprint training, however there are two important distinctions: Repetitions should last from 30 seconds up to 2-3 minutes as opposed to 5-10 seconds for speed drills.
Personal item. The maximum dimensions for your personal item that fits under the seat in front of you, such as a shoulder bag, purse, laptop bag or other small item, are 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm). If you are traveling on a Basic Economy ticket, your personal item will be the only item you can bring on board.
Approved Personal Items: 1 purse, briefcase, camera bag or diaper bag or 1 laptop computer (computers cannot be checked) or 1 item of a similar or smaller size to those listed. Baggage may not exceed 45 linear inches (or 114 cm) in combined length, width and height, including any handles and wheels.