Exercising at a High Altitude Where There Is Less Oxygen

question 121

Multiple Choice

 Exercising at a high altitude where there is less oxygen is most likely to affect ____.

• A) intermediate fibers
• B) anaerobic contraction
• C) fast-twitch fibers
• D) slow-twitch fibers

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Definitions:

Slow Fibers

Muscle fibers characterized by their slow contraction time and enhanced ability to sustain long-term activities.

Fast (IIb) Fibers

Muscle fibers that contract quickly and powerfully but fatigue rapidly, predominantly used for explosive movements.

Skeletal Muscle

A type of striated muscle tissue which is under voluntary control, responsible for movement of the skeleton and various body parts.

Respiratory Movements

The acts of inhalation and exhalation, which bring air into and expel it from the lungs.