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Development of the Rope-Climbing Ergometer for Physical Training and Testing
Hiroshi Arakawa1, Daisuke Kumagawa2, Iwao Fujisaki3
1Physical Education, International Budo University, Katsuura, Chiba, Japan.
Sports Medicine International Open
|December 13, 2018
Summary
A new rope-climbing ergometer was developed for physical training and testing. This device allows for controlled resistive loads, enabling detailed characterization of force, velocity, and power during maximal efforts.
Area of Science:
- Biomechanics
- Exercise Physiology
- Sports Engineering
Background:
- Rope climbing is a demanding physical activity requiring significant strength and endurance.
- Existing methods for assessing rope climbing performance lack controlled resistance and detailed physiological measurement capabilities.
- Development of specialized ergometers is crucial for objective performance evaluation and training program optimization.
Purpose of the Study:
- To design and develop a novel rope-climbing ergometer with adjustable resistive load.
- To characterize the ergometer's loading system through calibration tests.
- To evaluate the ergometer's performance by measuring force, velocity, and power during maximal effort exercises in human subjects.
Main Methods:
- A custom-designed loading device utilizing an eddy current brake with electrical current control was integrated into a rope-climbing setup.
- Calibration tests were conducted using a three-phase induction motor to establish the relationship between load-level settings and traction force (0-100 levels).
- Fourteen male participants performed maximal effort rope-climbing exercises (8 sets of 10 seconds) at various resistance levels.
Main Results:
- The ergometer's loading system was calibrated, defining force outputs from 123 N (Level 0) to 1064 N (Level 100).
- During maximal efforts, mean force increased significantly with resistance (161% increase from Level 0 to 18), while mean velocity decreased (64.7% decrease).
- Peak mean power output was observed at Level 9, reaching 320 W, indicating an optimal resistance for power generation.
Conclusions:
- A functional rope-climbing ergometer was successfully developed and characterized, offering controlled resistance for training and testing.
- The ergometer provides quantifiable data on force, velocity, and power, enabling detailed performance analysis.
- Further research is required to establish the concurrent validity and reliability of this novel rope-climbing ergometer for practical applications.
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