Flexible flatfoot is associated with altered plantar pressure distribution, but it is not clear how muscle fatigue affects plantar pressure characteristics in flexible flatfoot and normal foot.
OBJECTIVE:
To investigate the effects of calf muscles fatigue on plantar pressure variables in flexible flatfoot and normal foot.
METHODS:
Twenty-five people with flexible flatfoot and twenty-five people with normal foot were included. The unilateral heel-rise test was used to induce calf muscles fatigue. Plantar pressure variables were collected during preferred walking immediately before and after fatigue. The two-way mixed-design ANOVA was used to determine the main effect of fatigue and the interaction between foot posture and fatigue.
RESULTS:
Fatigue caused medialization of the contact area under the forefoot and the maximum force under the heel and forefoot ( 0.05). When examining the differences in the effects of fatigue between groups, the contact area under the medial heel increased with fatigue in flexible flatfoot but decreased in normal foot; moreover, the contact area and maximum force under the midfoot and the maximum force under the third metatarsal decreased with fatigue in flexible flatfoot but increased in normal foot ( 0.05).
CONCLUSIONS:
Calf muscles fatigue caused medialization of the maximum force and contact area. Especially the midfoot was affected differently by fatigue in flexible flatfoot and normal foot.
AtikAOzyurekS. Flexible flatfoot. North Clin Istanbul.2014; 1(1): 57-64.
2.
RajMATaftiDKielJ. Pes Planus [Internet]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020. Available from: http://europepmc.org/books/NBK430802.
3.
BuldtAKMurleyGSButterworthPLevingerPMenzHBLandorfKB. The relationship between foot posture and lower limb kinematics during walking: a systematic review. Gait Posture [Internet].2013; 38(3): 363-72. Available from: doi: 10.1016/j.gaitpost.2013.01.010.
4.
BuldtAKLevingerPMurleyGSMenzHBNesterCJLandorfKB. Foot posture is associated with kinematics of the foot during gait: a comparison of normal, planus and cavus feet. Gait Posture [Internet].2015; 42(1): 42-8. Available from: doi: 10.1016/j.gaitpost.2015.03.004.
5.
HuntAESmithRM. Mechanics and control of the flat versus normal foot during the stance phase of walking. Clin Biomech.2004; 19(4): 391-7.
6.
NealBSGriffithsIBDowlingGJMurleyGSMunteanuSEFranettovich SmithMM, et al. Foot posture as a risk factor for lower limb overuse injury: a systematic review and meta-analysis. J Foot Ankle Res.2014; 7(1): 1-13.
7.
TongJWKKongPW. Association between foot type and lower extremity injuries: systematic literature review with meta-analysis. J Orthop Sports Phys Ther.2013; 43(10): 700-14.
8.
Abdul RazakAHZayeghABeggRKWahabY. Foot plantar pressure measurement system: a review. Sensors (Switzerland).2012; 12(7): 9884-912.
9.
BuldtAKAllanJJLandorfKBMenzHB. The relationship between foot posture and plantar pressure during walking in adults: a systematic review. Gait Posture [Internet].2018; 62: 56-67. Available from: doi: 10.1016/j.gaitpost.2018.02.026.
10.
KirmiziMSengulYSAnginS. The effects of gait speed on plantar pressure variables in individuals with normal foot posture and flatfoot. Acta Bioeng Biomech.2020; 22(3): 1-16.
11.
DuganSAFronteraWR. Muscle fatigue and muscle injury. Vol. 11, Physical Medicine and Rehabilitation Clinics of North America. 2000. 385-403.
12.
MairSDSeaberAVGlissonRRGarrettWE. The role of fatigue in susceptibility to acute muscle strain injury. Am J Sports Med.1996; 24(2): 137-43.
13.
MadeleyLTMunteanuSEBonannoDR. Endurance of the ankle joint plantar flexor muscles in athletes with medial tibial stress syndrome: a case-control study. J Sci Med Sport.2007; 10(6): 356-62.
14.
ÖsterbergUSvantessonUTakahashiHGrimbyG. Torque, work and EMG development in a heel-rise test. Clin Biomech.1998; 13(4–5): 344-50.
15.
ChimentiRLTomeJHillinCDFlemisterASHouckJ. Adult-acquired flatfoot deformity and age-related differences in foot and ankle kinematics during the single-limb heel-rise test. J Orthop Sports Phys Ther.2014; 44(4): 283-90.
PhanCBShinGLeeKMKooS. Skeletal kinematics of the midtarsal joint during walking: midtarsal joint locking revisited. J Biomech [Internet].2019; 95: 109287. Available from: doi: 10.1016/j.jbiomech.2019.07.031.
18.
MurleyGSMenzHBLandorfKB. Foot posture influences the electromyographic activity of selected lower limb muscles during gait. J Foot Ankle Res.2009; 2(1): 1-9.
19.
VuillermeNForestierNNougierV. Attentional demands and postural sway: the effect of the calf muscles fatigue. Med Sci Sport Exerc [Internet].2002 Dec; 34(12): 1907-12. Available from: http://journals.lww.com/00005768-200212000-00008.
20.
BarbieriFAPenedoTSimieliLBarbieriRAZagattoAMvan DiëEnJH, et al. Effects of ankle muscle fatigue and visual behavior on postural sway in young adults. Front Physiol [Internet].2019 Jun 5; 10. Available from: doi: 10.3389/fphys.2019.00643/full.
21.
MenzHB. Two feet, or one person? Problems associated with statistical analysis of paired data in foot and ankle medicine. Foot.2004; 14(1): 2-5.
22.
KirmiziMCakirogluMAElvanASimsekIEAnginS. Reliability of different clinical techniques for assessing foot posture. J Manipulative Physiol Ther.2020; 43(9): 901-8.
23.
MillerAL. A new method for synchronization of motion capture and plantar pressure data. Gait Posture [Internet].2010; 32(2): 279-81. Available from: doi: 10.1016/j.gaitpost.2010.04.012.
24.
McPoilTCornwallMDupuisLCornwellM. Variability of plantar pressure data. A comparison of the two-step and midgait methods. J Am Podiatr Med Assoc [Internet].1999 Oct 1; 89(10): 495-501. Available from: https://meridian.allenpress.com/japma/article/89/10/495/155819/Variability-of-plantar-pressure-data-A-comparison.
25.
BryantASingerKTinleyP. Comparison of the reliability of plantar pressure measurements using the two-step and midgait methods of data collection. Foot Ankle Int [Internet].1999 Oct 28; 20(10): 646-50. Available from: doi: 10.1177/107110079902001006.
26.
HaugenTATønnessenESeilerSK. The difference is in the start: Impact of timing and start procedure on sprint running performance. J Strength Cond Res.2012; 26(2): 473-9.
27.
DixonSJ. Application of center-of-pressure data to indicate rearfoot inversion-eversion in shod running. J Am Podiatr Med Assoc.2006; 96(4): 305-12.
28.
WongLHuntABurnsJCrosbieJ. Effect of foot morphology on center-of-pressure excursion during barefoot walking. J Am Podiatr Med Assoc.2008; 98(2): 112-7.
29.
KuligKBurnfieldJMRequejoSMSperryMTerkM. Selective activation of tibialis posterior: evaluation by magnetic resonance imaging. Med Sci Sports Exerc.2004; 36(5): 862-7.
30.
LeeSSMPiazzaSJ. Inversion-eversion moment arms of gastrocnemius and tibialis anterior measured in vivo. J Biomech.2008; 41(16): 3366-70.
31.
VieiraTMMMinettoMAHodson-ToleEFBotterA. How much does the human medial gastrocnemius muscle contribute to ankle torques outside the sagittal plane? Hum Mov Sci [Internet].2013; 32(4): 753-67. Available from: doi: 10.1016/j.humov.2013.03.003.
32.
BonannoDRZhangCYFarrugiaRCBullMGRaspovicAMBirdAR, et al. The effect of different depths of medial heel skive on plantar pressures. J Foot Ankle Res [Internet].2012; 5(1): 1. Available from: Journal of Foot and Ankle Research.
33.
KirbyKA. The medial heel skive technique. Improving pronation control in foot orthoses. J Am Podiatr Med Assoc.1992; 82(4): 177-88.
34.
HornestamJFSouzaTRArantesPOcarinoJSilvaPL. The effect of walking speed on foot kinematics is modified when increased pronation is induced. J Am Podiatr Med Assoc.2016; 106(6): 419-26.
35.
Mei-DanOKahnGZeevARubinAConstantiniNEvenA, et al. The medial longitudinal arch as a possible risk factor for ankle sprains: a prospective study in 83 female infantry recruits. Foot Ankle Int.2005; 26(2): 180-3.
