ArticleBMC sports science, medicine & rehabilitation2026
Recreational runners with Achilles tendinopathy have symmetrical single leg hopping mechanics, and contact duration is associated with vertical stiffness.
Article in BMC sports science, medicine & rehabilitation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
backgroundRunners with unilateral Achilles tendinopathy (AT) may exhibit inter-limb differences in lower limb mechanics during single leg hopping, and clinic friendly temporospatial measures may relate to stiffness characteristics.
objectiveTo test whether runners with unilateral AT have symmetrical lower limb mechanics across during hopping, and to examine the association between contact duration and stiffness.
designWithin-subject study.
methodSeventeen recreational runners with unilateral AT performed single leg hopping tasks: self-selected cadence (20 s), maximal height hopping (≥ 3 consecutive hops), cued hopping at 132 hops·min
resultsNo inter-limb differences were observed for vertical or leg stiffness, ankle mechanics, or temporospatial variables across tasks. Small differences were observed at the hip and knee (e.g., greater hip flexion angle by 1-3° at 120 and 108 hops·min
conclusionRecreational runners with unilateral AT, had symmetrical lower limb mechanics during single leg hopping tasks, with subtle proximal differences of uncertain clinical relevance. The strong association between contact duration and stiffness supports the clinical utility of temporospatial metrics during self-selected hopping as practical indicators of lower limb mechanical behaviour.
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