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. 2023 May 9;9(2):e001570.
doi: 10.1136/bmjsem-2023-001570. eCollection 2023.

Factors associated with lower limb tendinopathy in a large cohort of runners: a survey with a particular focus on nutrition

A Mireille Baart  1   2 , Rieneke Terink  2 , Mannes Naeff  2 , Eelke Naeff  3 , Marco Mensink  1 , Jelmer Alsma  4 , Ben J M Witteman  1   5 , Johannes Zwerver  2   6
Affiliations

Factors associated with lower limb tendinopathy in a large cohort of runners: a survey with a particular focus on nutrition

A Mireille Baart et al. BMJ Open Sport Exerc Med. .

Abstract

Objectives: Lower limb tendinopathy (LLT) is highly prevalent in runners. Treatment can be challenging, and knowledge of risk factors may be valuable to develop preventive or treatment interventions for LLT. The aims of this study were (1) to assess the prevalence of three common LLTs (Achilles tendinopathy (AT), patellar tendinopathy and plantar fasciopathy) in a large cohort of Dutch and Belgian runners and (2) to investigate its association with potential risk factors, with a particular focus on nutritional factors in the habitual diet.

Methods: A total of 1993 runners were included in the study. They completed two online questionnaires: a general questionnaire on running habits and injuries and a Food Frequency Questionnaire. Runners with and without LLT were compared regarding personal characteristics, running characteristics and nutritional factors.

Results: The point prevalence for the three LLTs was 6%; 33% of the runners reported LLT in the past and 35% had either a current or past LLT. AT was the most prevalent type of LLT, and prevalence rates for all types of LLT were higher in men than women. Positive associations with LLT were observed for age and running years (men and women), running level and running distance (men). No associations between LLT and nutritional factors were observed.

Conclusion: One-third of this population of runners had ever experienced an LLT. These tendinopathies were associated with gender, age and running load, but not with nutritional factors.

Keywords: Nutrition; Running; Tendinopathy.

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Conflict of interest statement

Competing interests: None declared.

Comment in

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