Which of the following is a reason for reduced long-distance running performance in the heat (e.g., 85° F) ?     inhibits gluconeogenesis     hastens glycogen depletion     lowers muscle pH     inhibits nerve impulse transmission to the muscle fiber

When electrically stimulating a skeletal muscle and measuring the force of muscle contraction, which of the following are true? Check All That Apply Increasing the stimulus will increase the muscle contraction force. The recruitment of motor units will increase the muscle contraction force. One weak stimulus will cause an increase in muscle contraction force. Increasing the force will increase the muscle contraction stimulus. Once maximum stimulus has been reached, the muscle will not contract with increased force.

If someone specifically wanted to burn a lot of fat (not necessarily total calories), what type of exercise should they do? High-intensity exercise for 10 to 15 minutes O High-intensity exercise for less than 10 minutes Walking for 5 minutes O Low- to moderate-intensity exercise for 30 to 60 minutes

Which of the following is associated with smooth muscle contraction?   Troponin as calcium-sensing protein.   Contraction based on the sliding filaments theory.   Calcium-induced calcium release mechanism.   Electromechanical calcium release mechanism.   Contraction requires myosin light-chain kinase activity