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Superhuman Physical Characteristics

Background
Superhuman Physical Characteristics is the general term for strength, speed, endurance, and durability that surpass the natural limits of human capability. Characters with these traits exceed the performance of even the most highly trained athletes, reaching levels that normal physiology cannot sustain. This is one of the most common forms of enhancement in fiction, often used as the foundation for more specialized powers and abilities.
Superhuman characteristics can appear in many forms, from slightly enhanced runners or fighters to individuals capable of breaking through walls, outrunning vehicles, or surviving injuries that would kill an ordinary human. While some characters achieve this through training, others gain it from mutations, supernatural influence, advanced technology, or their species’ natural physiology.
Also Called
- Superhuman Attributes
- Enhanced Physiology
- Beyond Human Limits
Applications
- Superhuman Strength: Ability to lift, carry, and strike with power exceeding Olympic athletes. Typically, this means lifting over 454 kg and delivering blows strong enough to cause structural damage.
- Superhuman Speed: Capable of running faster than 9 m/s (≈20 mph), surpassing the highest sustainable human sprint speeds.
- Superhuman Reaction: Possess reaction times below the human average of 0.2–0.25 seconds, often perceiving and responding in as little as 0.08 to 0.006 seconds.
- Superhuman Lifting: Beyond the maximum known human limits; feats may range from hoisting vehicles to manipulating massive weights with ease.
- Enhanced Striking: Blows can carry destructive potential, reaching Wall level and beyond depending on scaling.
- Superhuman Durability: Can survive powerful impacts, falls, or blunt force trauma that would incapacitate or kill an ordinary human. Piercing damage (such as knives or bullets) may still be dangerous depending on the character.
- Enhanced Energy Efficiency: Able to operate at extreme levels without collapsing from exhaustion. Fiction typically ignores the immense energy such feats should require, implying characters conserve energy at levels far beyond real biology.
Practical Uses
- Provides a natural advantage in combat and survival scenarios.
- Allows feats of traversal and mobility impossible for humans, such as outrunning vehicles or climbing sheer structures.
- Enables extended combat endurance and resistance to injury.
- Serves as the baseline enhancement for many superpowered characters before additional abilities are factored in.
- Provides credibility to otherwise impossible feats, such as wielding oversized weapons or performing superhuman stunts.
Possible Limitations
- May only be sustainable for short bursts rather than long durations.
- Durability does not always scale evenly — characters may resist blunt trauma but remain vulnerable to piercing attacks.
- Energy requirements, if taken literally, would be impossible to sustain (most fiction ignores this, but rare cases acknowledge it).
- Different attributes may not be evenly distributed — some may excel in speed but lack durability, for example.
- Environmental factors (injuries, exhaustion, terrain) can still affect performance.
Benchmarks
- Strength: >454 kg lifting capacity, destructive striking force (Wall level and above).
- Speed: >9 m/s, with reflexes below 0.1 seconds in extreme cases.
- Stamina: Capable of exertion well beyond human limits without exhaustion.
- Durability: Withstand impacts and force sufficient to injure or kill a baseline human.
Note: A character may still qualify as superhuman even if not all attributes exceed these thresholds, provided their overall physical capabilities are consistently superior to those of ordinary humans.