Impact attenuation and variability during running in females: A lifespan investigation
Journal of sport rehabilitation, 2008•journals.humankinetics.com
Context: Impact is known to cause injury during running, while variability is thought to
promote healthy performance. Objective: Quantify contributions of the lower extremity and
back and the variability of impact generation among (1) prepubescent girls (Grp 1),(2)
normally menstruating women (Grp 2), and (3) postmenopausal women (Grp 3) to address
possible lifespan changes during running. Design: A mixed model experiment. Setting:
Biomechanics Laboratory. Participants: 31 healthy females owing membership to Grp1, Grp …
promote healthy performance. Objective: Quantify contributions of the lower extremity and
back and the variability of impact generation among (1) prepubescent girls (Grp 1),(2)
normally menstruating women (Grp 2), and (3) postmenopausal women (Grp 3) to address
possible lifespan changes during running. Design: A mixed model experiment. Setting:
Biomechanics Laboratory. Participants: 31 healthy females owing membership to Grp1, Grp …
Context
Impact is known to cause injury during running, while variability is thought to promote healthy performance.
Objective
Quantify contributions of the lower extremity and back and the variability of impact generation among (1) prepubescent girls (Grp 1), (2) normally menstruating women (Grp 2), and (3) postmenopausal women (Grp 3) to address possible lifespan changes during running.
Design
A mixed model experiment.
Setting
Biomechanics Laboratory.
Participants
31 healthy females owing membership to Grp1, Grp 2, or Grp 3.
Intervention
Participants ran on a treadmill at their preferred speed (45 s) and at a speed 10% faster (45 s) while instrumented with uniaxial accelerometers.
Main Outcome Measures
Lower extremity attenuation, back attenuation and variability of peak impact acceleration values.
Results
Lower extremity attenuation and variability were greatest for Grp 1 while impact variability was least for Grp 2.
Conclusion
Lifespan phases appear to affect impact attenuation strategies and variability of impact during running for females.
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