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The influence of plantar short foot muscle exercises on the lower extremity muscle strength and power in proximal segments of the kinematic chain in long-distance runners
Sulowska I, Mika A, Oleksy L, Stolarczyk A
BioMed Research International 2019;(6947273):Epub
clinical trial
5/10 [Eligibility criteria: No; Random allocation: No; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

The aim of this study was to evaluate the influence of plantar short foot muscles exercises on the performance of lower extremities in long-distance runners. 47 long-distance runners aged 21 to 45 years took part in this study. The participants were divided into two groups based on baseline measurement of Foot Posture Index: group 1 (n = 27) with neutral foot and group 2 (n = 20) with slight and increased pronation. The participants performed the exercises daily for 6 weeks. The knee flexors and extensors torque, work, and power on isokinetic dynamometer and Running-Based Anaerobic Sprint Test (RAST) were checked at baseline and after 6 weeks of exercises. Higher values of peak torque of knee flexors were observed. This change was statistically significant at high load with angular velocity 90 degree/s (73.55 Nm at baseline and 89.05 Nm after 6 weeks) and 160 degree/s (69.40 Nm at baseline and 79.00 Nm after 6 weeks) in group 2. In both groups higher values of maximum power were noted.

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