TY - JOUR
T1 - Effect of environmental temperature on shock absorption properties of running shoes
AU - Dib, Mansour Y.
AU - Smith, Jay
AU - Bernhardt, Kathie A.
AU - Kaufman, Kenton R.
AU - Miles, Kevin A.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/5
Y1 - 2005/5
N2 - Objective: To determine the effect of temperature changes on the shock attenuation of 4 running shoe shock absorption systems. Design: Prospective. Setting: Motion analysis laboratory. Interventions: The shock attenuation of 4 different running shoes representing common shock absorption systems (Nike Air Triax, Asics Gel Nimbus IV, Adidas a3 cushioning, Adidas Supernova cushion) was measured at ambient temperatures of -20°C, -10°C, 0°C, +10°C, +20°C, +30°C, +40°C, and +50°C. Repeated-measures analysis of variance was used to determine differences between shoes. Outcome Measures: Shock attenuation as indicated by peak deceleration (g) measured by a mechanical impactor following ASTM Standard F1614-99. Results: Shock attenuation decreased significantly with reduced temperature for each shoe tested. The Adidas a3 shoe exhibited significantly higher peak decelerations (lower shock attenuation) at cold temperatures compared with the other shoes. Conclusions: Cold ambient temperatures significantly reduce the shock attenuation of commonly used running shoes. These findings have important clinical implications for individuals training in extreme weather environments, particularly those with a history of lower limb overuse injuries.
AB - Objective: To determine the effect of temperature changes on the shock attenuation of 4 running shoe shock absorption systems. Design: Prospective. Setting: Motion analysis laboratory. Interventions: The shock attenuation of 4 different running shoes representing common shock absorption systems (Nike Air Triax, Asics Gel Nimbus IV, Adidas a3 cushioning, Adidas Supernova cushion) was measured at ambient temperatures of -20°C, -10°C, 0°C, +10°C, +20°C, +30°C, +40°C, and +50°C. Repeated-measures analysis of variance was used to determine differences between shoes. Outcome Measures: Shock attenuation as indicated by peak deceleration (g) measured by a mechanical impactor following ASTM Standard F1614-99. Results: Shock attenuation decreased significantly with reduced temperature for each shoe tested. The Adidas a3 shoe exhibited significantly higher peak decelerations (lower shock attenuation) at cold temperatures compared with the other shoes. Conclusions: Cold ambient temperatures significantly reduce the shock attenuation of commonly used running shoes. These findings have important clinical implications for individuals training in extreme weather environments, particularly those with a history of lower limb overuse injuries.
KW - Cushioning
KW - Environmental temperature
KW - Running
KW - Running shoes
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U2 - 10.1097/01.jsm.0000165348.32767.32
DO - 10.1097/01.jsm.0000165348.32767.32
M3 - Article
C2 - 15867561
AN - SCOPUS:18744392273
VL - 15
SP - 172
EP - 176
JO - Clinical Journal of Sport Medicine
JF - Clinical Journal of Sport Medicine
SN - 1050-642X
IS - 3
ER -