ArticlePloS one2014
Leg extension power is a pre-disaster modifiable risk factor for post-traumatic stress disorder among survivors of the Great East Japan Earthquake: a retrospective cohort study.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06390618 (Investigation of the Biopsychosocial Effectiveness of Different Exercise Trainings in Earthquake Survivors With Post-Traumatic Stress Disorder), which is not on this map. Cited by 5 papers.
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Investigation of the Biopsychosocial Effectiveness of Different Exercise Trainings in Earthquake Survivors With Post-Traumatic Stress Disorder
Who cites it
5 citing papers in PubMed, 13 citations in OpenAlex.
- A scoping review on the mental health of disaster responders for natural disasters in Japan.PCN reports : psychiatry and clinical neurosciences · 2026Review
- The occurrence and risk factors associated with post-traumatic stress disorder among discharged COVID-19 patients in Tianjin, China.Brain and behavior · 2022Article
- Article
- Dietary patterns are associated with depressive symptoms among Chinese adults: a case-control study with propensity score matching.European journal of nutrition · 2017Article
- Mental health and psychological impacts from the 2011 Great East Japan Earthquake Disaster: a systematic literature review.Disaster and military medicine · 2015Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPost-traumatic stress disorder (PTSD) is a common psychological problem following natural disasters. Although pre-disaster risk factors are important for early detection and proactive support, the examination of such has been limited to sociodemographic factors, which were largely unaffected by the disasters. We examined the association between pre-disaster physical functioning and lifestyle and PTSD symptoms five months after the earthquake in the Great East Japan Earthquake survivors who were participating in a pre-existing cohort study.
methodsWe designed a retrospective cohort study of a cooperative association in Sendai from August 2010 to August 2011. In 2010, lifestyle, physical condition, and sociodemographic factors were examined by self-reported questionnaires completed by 522 employees of this organization. We also measured the leg extension power of all the participants. PTSD symptoms were evaluated by the Japanese version of the Impact of Event Scale-Revised (IES-R-J) following the earthquake of 2011.
resultsIn multivariate linear regression analysis, leg extension power (β = -0.128, P = 0.025), daily drinking (β = 0.203, P = 0.006), and depressive symptoms (β = 0.139, P = 0.008) were associated with total score of the IES-R-J among men. Moreover, for the IES-R-J subscale, leg extension power was also negatively associated with Intrusion (β = -0.114, P = 0.045) and Hyperarousal (β = -0.163, P = 0.004) after adjusting for all other significant variables. For women, hypertension (β = 0.226, P = 0.032) and depressive symptoms (β = 0.205, P = 0.046) were associated with the total score of the IES-R-J.
conclusionsLeg extension power is a potentially modifiable pre-disaster risk factor among men for attenuating the severity of PTSD symptoms associated with great disasters such as the Great East Japan Earthquake among men.
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