Under anaerobic conditions, exercises are characterized by what type of resistance and time duration?

Under anaerobic conditions, exercises typically involve high resistance and short duration. This is because anaerobic exercise is fueled by energy sources that are stored in the muscles and does not rely on oxygen for immediate energy production. High-resistance activities, such as sprinting or heavy lifting, are performed in short bursts of effort, generally lasting from a few seconds up to about two minutes.

The body engages in anaerobic metabolism to produce energy quickly, which is crucial during high-intensity activities. This process is efficient for short durations but can lead to fatigue as the body depletes its stored energy sources. Therefore, the combination of high resistance and short duration is characteristic of anaerobic exercises, making this the correct answer.