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Relationships Between Midthigh Pull Force Development and 200-m Race Performance in Highly Trained Kayakers
Craig W Pickett1,2,3, Kazunori Nosaka1, James Zois2
1Center for Exercise and Sports Science Research, School of Medical and Health Sciences, Edith Cowan University, Australia.
Journal of Strength and Conditioning Research
|June 25, 2019
Summary
The isometric midthigh pull (MTP) test shows poor reliability and weak correlations with 200-m kayak race performance. Therefore, MTP testing may not be beneficial for highly trained kayakers aiming to improve race times.
Area of Science:
- Sports Science and Biomechanics
- Exercise Physiology
- Performance Analysis in Aquatic Sports
Background:
- Increased lower-limb force production is linked to higher kayak boat velocity.
- Previous studies showed weak correlations between deadlift performance and 200-m kayak race times.
- This discrepancy may stem from differences in movement patterns or force production timing between tests and kayaking.
Purpose of the Study:
- To analyze the reliability and correlation of isometric midthigh pull (MTP) test force data with 200-m race performance in elite kayakers.
- To assess the relationship between MTP force production (peak and rate) and 200-m race time.
- To evaluate the association between MTP force development and maximal deadlift strength (3RM).
Main Methods:
- Collected isometric midthigh pull (MTP) force data from 11 highly trained kayak athletes.
- Analyzed MTP data for reliability and correlations with 200-m race time and deadlift 3RM.
- Focused on peak force, rate of force development, and early (<0.15s) and later (>0.25s) force production phases.
Main Results:
- Correlations between 200-m race time and MTP peak force/rate of force development were poor to moderate (r = -0.49 to 0.07).
- Strong relationships (r = 0.66-0.79) were observed between early MTP force (<0.15s) and deadlift 3RM, but not for later force development (r ≤ 0.12).
- Poor reliability was found for force measurements up to 0.25 seconds from force onset (ICC > 0.8).
Conclusions:
- The isometric midthigh pull test demonstrated poor reliability for force measurements within the first 0.25 seconds.
- Weak relationships between MTP force metrics and 200-m kayak race performance suggest limited applicability.
- The MTP test is likely not a suitable tool for assessing or training 200-m kayak athletes due to weak correlations and high variability.
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