Forces Acting on the Foot of the American Alligator (Alligator mississippiensis) During Pedal Anchoring
2024

Forces on Alligator Feet During Pedal Anchoring

Sample size: 8 publication 10 minutes Evidence: high

Author Information

Author(s): Walter Young, Jamie Carroll, Michael Cramberg, Jeremy J. Houser, Debra Loguda-Summers

Primary Institution: A.T. Still University, Kirksville, MO, USA

Hypothesis

The forces acting on the pes during pedal anchoring are distinct from those acting during locomotion.

Conclusion

The study found that pedal anchoring involves different forces compared to walking, indicating it is an active behavior requiring muscle contraction.

Supporting Evidence

  • The tracks made by model feet were similar to those made by live alligators.
  • Significantly different pressure patterns were recorded during walking compared to pedal anchoring.
  • Different model feet produced varying pressure patterns due to their flexibility.

Takeaway

Alligators use their feet to hold onto the ground when they move, and this study shows that they use different muscles and forces to do this compared to just walking.

Methodology

The study used model alligator feet equipped with strain gauges to measure forces while simulating walking and pedal anchoring over a mud substrate.

Limitations

The study used model feet rather than live alligators, which may not fully replicate natural conditions.

Participant Demographics

Sub-adult Alligator mississippiensis

Statistical Information

P-Value

1.11 × 10−16

Statistical Significance

p<0.0001

Digital Object Identifier (DOI)

10.3390/biology13121062

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