In November 2018 researchers from the UK published the results of their study to assess the effect of using semi-custom insoles in recreational runners with patellofemoral pain. The kneecap (patella) and the femur form a third joint, called the patellofemoral joint and patellofemoral pain syndrome is a syndrome characterised by pain in the back of the knee. A total of 17 recreational runners (10 males; 7 females) were included in the study. The individuals had their knee pain assessed and in addition lower extremity kinetics/kinematics during running at 4.0 m/s was obtained. The individuals were divided into two groups (“strong” and “weak and tight”) and given a pair of semi-custom insoles. Each individual was assessed before and after wearing the insoles for a period of 4 weeks. Results showed that there were significant improvements in both the “strong” and “weak and tight” groups, although only improvements in the “weak and tight” group exceeded the “minimum clinically important difference”. In addition, both groups experienced significant reductions in peak patellofemoral stress, although once again only reductions in the “weak and tight” group exceeded the “minimum clinically important difference”.
Sinclair J et al. Effects of a 4-week intervention using semi-custom insoles on perceived pain and patellofemoral loading in targeted subgroups of recreational runners with patellofemoral pain. Phys Ther Sport. 2018 Nov;34:21-27