Which of the following is a technique error that should be corrected when sprinting?

An untrained 14 year old male has begun a resistance training program. After training for two and a half weeks his 1 RM bench press has increased 25 lbs., and his 1 RM back barbell squat has increased 45 lbs.
Which of the following is most likely responsible for his improvement?

Which of the following identifies the correct location and limb position to take right upper arm girth measurements?

ATP used during the 400-m dash would be primarily supplied from what energy system?

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You will be administering the 300 yard shuttle to the women's soccer team and need to setup the testing area by placing cones for the athletes to run between. How far should these cones be spaced apart?