The lifting phase in alternating prone extensions is caused by _____.

A. concentric activity in the abdominals and hip flexors
B. concentric activity in the erector spinae and hip extensors
C. eccentric activity in the abdominals and hip flexors
D. eccentric activity in the erector spinae and hip extensors


B. concentric activity in the erector spinae and hip extensors

Health & Biomechanics

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When the flu hits a household, the last one left standing is likely to be ____

a. Dad b. the teen son c. Grandpa d. the toddler e. Mom

Health & Biomechanics

Mary Anne is a hospital nurse who has been exposed to HIV by an accidental needle stick. She immediately begins taking antiretroviral drugs in a process known as ____

a. pre-infection prophylaxis (PIP) b. pre-emergent protection (PEP) c. post-transmission prevention (PTP) d. post-exchange protection (PEP) e. post-exposure prophylaxis (PEP)

Health & Biomechanics

Compared to NADH, FADH produces less ATP because

A. FADH enters the electron transport chain before NADH. B. FADH has a lower molecular mass than NADH. C. the electrons from FADH are donated later in the electron transport chain than those by NADH. D. None of these answers is correct.

Health & Biomechanics

An STI (sexually transmitted infection) is a(n) ________ infection spread through intimate contact

A) viral or bacterial B) staph C) pneumococcal D) airborne

Health & Biomechanics