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Effect of BMI on knee joint torques in ergometer rowing
Karen Roemer1, Tibor Hortobagyi, Chris Richter
1Department of Nutrition Exercise and Health Sciences, Central Washington University, Ellensburg, WA.
Journal of Applied Biomechanics
|April 4, 2013
Summary
This study reveals that higher body mass index (BMI) negatively impacts knee biomechanics during rowing exercise. Recommendations include adjusting rowing ergometer designs for improved safety in obese individuals.
Area of Science:
- Sports Science
- Biomechanics
- Exercise Physiology
Background:
- Ergometer rowing is recommended for obese adults as a non-weight-bearing exercise.
- However, the biomechanical characteristics of rowing, especially concerning body mass index (BMI), are not well-understood.
Purpose of the Study:
- To investigate the relationship between body mass index (BMI) and lower extremity biomechanics during ergometer rowing.
- To identify how different weight categories influence joint kinematics and kinetics.
Main Methods:
- Participants were categorized into normal weight (BMI 18-25), overweight (BMI 25-30 kg·m⁻²), and obese (BMI > 30 kg·m⁻²).
- Lower extremity biomechanics, including joint kinematics and kinetics, were analyzed during rowing exercise.
Main Results:
- Body mass index (BMI) significantly affects joint kinematics during rowing.
- Higher BMI was associated with unfavorable knee joint torques, indicating increased medial compartment loading.
- Specific alterations in knee joint kinetics were observed with increasing BMI.
Conclusions:
- Elevated BMI can lead to detrimental knee joint loads during ergometer rowing.
- Future rowing ergometer designs should consider variable foot positioning to mitigate these risks.
- Optimizing ergometer design can enhance exercise safety and effectiveness for individuals with higher BMIs.
