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Asymmetry in sprinting: An insight into sub‐10 and sub‐11 s men and women sprinters
- Source :
- Scandinavian Journal of Medicine & Science in Sports. 32:69-82
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- We evaluated sprint mechanical asymmetry in world-class competitors and evaluate whether inter-limb sex-based differences in sprinting mechanics exist. The eight finalists in the men’s and women’s 100 m events at the 2017 IAAF World Championships were studied. Five high-speed cameras (150 Hz) were used to capture two consecutive steps of the whole body between 47.0 m and 55.5 m from the start, while four additional cameras (250 Hz) focussed on the lower extremities. A total of 33 spatio-temporal, touchdown and toe-off joint angles, and horizontal and vertical foot velocity parameters were extracted through three-dimensional analysis. Group mean asymmetry scores were assessed using the symmetry angle (SA) where scores of 0% and 100% represent perfect symmetry and perfect asymmetry, respectively. Although considered generally low (SA < 3% for 22 out of 33 parameters), the magnitude of mechanical asymmetry varied widely between sprinters of the same sex. However, there was no mean SA scores difference between men and women for any stride mechanical parameters (all P≥0.064). Asymmetry scores were inconsistent between parameters and phases (touchdown vs toe-off instants), and sprinting mechanics were generally not related to asymmetry magnitudes. In summary, low to moderate asymmetry is a natural phenomenon in elite sprinting. Asymmetry was inconsistent between parameters and competitors during near maximum-velocity running, yet mean values for a given parameter generally did not differ between sexes. Sprinters’ performances were not related to their SA scores.
- Subjects :
- Male
media_common.quotation_subject
QP301.H75_Physiology._Sport
STRIDE
Physical Therapy, Sports Therapy and Rehabilitation
Athletic Performance
Asymmetry
Biomechanical Phenomena
Running
Lower Extremity
Sprint
Statistics
GV1060_Track
Same sex
Humans
Female
Orthopedics and Sports Medicine
Natural phenomenon
GV0712_Athletic
Whole body
Mathematics
media_common
Subjects
Details
- ISSN :
- 16000838 and 09057188
- Volume :
- 32
- Database :
- OpenAIRE
- Journal :
- Scandinavian Journal of Medicine & Science in Sports
- Accession number :
- edsair.doi.dedup.....7e088c1c3ac50481d905147f722db575