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On the Relation Between Leg Motion Rate and Speech Tempo During Submaximal Cycling Exercise
Heather Weston1, Wim Pouw2, Susanne Fuchs3
1Humboldt-Universität zu Berlin, Leibniz-Zentrum Allgemeine Sprachwissenschaft, Germany.
Journal of Speech, Language, and Hearing Research : JSLHR
|February 12, 2024
Summary
This study found no direct link between leg cycling speed and speech rate during exercise. Unexpectedly, speech tempo decreased with increased physical workload, suggesting complex individual factors influence speech during activity.
Area of Science:
- Biomechanics
- Speech Science
- Exercise Physiology
Background:
- Understanding the relationship between physical activity and speech production is crucial for various applications.
- Previous research suggested a potential link between exercise intensity and speech tempo, but the underlying mechanisms remain unclear.
Purpose of the Study:
- To investigate temporal coupling between lower limb motion rate and speech tempo across different exercise intensities.
- To examine if increased physical workload affects cycling rate and speech tempo.
- To determine the influence of speech task type (read vs. spontaneous) on these relationships.
Main Methods:
- A within-participant design involving 48 women (ages 18-35) performing exercises at varying workloads.
- Motion capture and acoustic analysis to measure leg cycling rate and speech tempo.
- Speech tempo assessment using amplitude envelope and intrinsic mode functions.
Main Results:
- No direct temporal coupling was observed between leg cycling rate and speech rate.
- Leg cycling rate significantly increased with workload.
- Speech tempo measures decreased from rest to low and moderate workloads.
Conclusions:
- Speech tempo does not synchronize with leg motion rate at a group level, suggesting a need for further investigation into momentary coupling.
- The decrease in speech tempo with increased workload may be due to diverse individual physical and mental factors.
- Even light physical activity can impact speech tempo, with implications for real-world communication.
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