Spectral analysis of impact shock during running

Winslow, Darcy S.; Shorten, Martyn R.

doi:10.1016/0021-9290(89)90511-3

Cited by 12 publications

(10 citation statements)

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“…Mercer et al (2002) reported 60% increase in shock attenuation across 50-100% speed conditions resulting in a 20% increase per 1 m/s increase in speed. This result is similar to the Winslow & Shorten (1989) study, who observed a 15% increase in shock attenuation for 1 m/s increase in speed. The role of running velocity on shock attenuation is dependent on stride length (Mercer, Bezodis, Russell, Purdy, & DeLion, 2005).…”

Section: Factors Effecting Shock Attenuationsupporting

confidence: 91%

“…Figure 6 illustrates head (c) and leg (d) acceleration profiles with event markers identifying beginning and ending points of a data set extracted for analysis. This acceleration pattern was typical in all strides for all subjects and all conditions and has been observed using surface mounted accelerometers (Derrick, Hamill, & Caldwell, 1998;Winslow & Shorten, 1989). The beginning event was identified as the local minimum on the leg acceleration profile just before the distinct positive impact peak with the ending event as the local minimum after a low magnitude peak.…”

Section: Data Reductionsupporting

confidence: 59%

“…It has been observed that shock attenuation increased as running velocity increased (Mercer, Vance, Hreljac, & Hamill, 2002;Mercer, Bezodis, Russell, Purdy, & DeLion, 2005;Winslow & Shorten, 1989). Mercer et al (2002) reported 60% increase in shock attenuation across 50-100% speed conditions resulting in a 20% increase per 1 m/s increase in speed.…”

Section: Factors Effecting Shock Attenuationmentioning

confidence: 99%

“…Data sets were therefore padded with zeros in order to total 1024 data points per acceleration profile. Power spectral densities were calculated for padded data sets, with PSD adjusted to account for changes in power due to the zero padding procedure by accounting for the number of zeros added to the data set (Winslow & Shorten, 1989). Shock attenuation was calculated as the ratio of leg Power Spectral Density (PSD) across the ll-20H z frequency range.…”

Section: Data Reductionmentioning

confidence: 99%

“…The frequency ranged analyzed was 1 l-20Hz. This frequency range should capture the frequencies associated with the impact phenomenon (Derrick, Hamill, & Caldwell, 1998;Mercer, Devita, Derrick, & Bates, 2003;Nigg, Cole, & Bruggemann, 1995;Winslow & Shorten, 1989).…”

Section: Shock Attenuation and Stride Lengthmentioning

confidence: 99%

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Shock Attenuation And Impact Characteristics For Children Running At Different Stride Lengths

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2008

Medicine &Amp; Science in Sports &Amp; Exercise

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Section: Factors Effecting Shock Attenuationsupporting

confidence: 91%

Section: Data Reductionsupporting

confidence: 59%