SUMMARY
The efficiency of humans climbing stairs is approximately 25%, as supported by the textbook "Work Physiology: Physiological Bases of Exercise" by Per-Olof Åstrand et al. For an 80kg individual climbing 12.95 meters (4 flights), the energy expenditure can be calculated using the change in potential energy formula: ΔPE = mg(zfinal - zinitial). This efficiency figure aligns with the typical range of 20-30% found in academic literature, particularly when climbing at a rate of around 50 steps per minute.
PREREQUISITES
- Understanding of potential energy calculations
- Familiarity with basic physics concepts, particularly work and energy
- Knowledge of human physiology related to exercise
- Ability to interpret efficiency metrics in physical activities
NEXT STEPS
- Calculate energy expenditure for different weights and stair heights using the potential energy formula
- Research the impact of climbing speed on energy efficiency
- Explore variations in human efficiency across different physical activities
- Study the physiological adaptations of the body during sustained physical exertion
USEFUL FOR
Students in physics or exercise science, fitness trainers, and anyone interested in the biomechanics of human movement and energy expenditure during physical activities.