An Acute Transition from Rearfoot to Forefoot Strike does not Induce Major Changes in Plantarflexor Muscles Activation for Habitual Rearfoot Strike Runners.
Footstrike pattern has received increased attention within the running community because there is a common belief that forefoot strike running (FFS) is more advantageous (i.e., improve performance and reduce running injuries) than rearfoot strike running (RFS) in distance running. Literature reports...
| Published in: | Journal of Sports Science & Medicine Vol. 22; no. 3; pp. 512 - 526 |
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| Main Authors: | , , , , , , , |
| Format: | pictorial research tables/charts Journal Article |
| Published: |
Hakan Gur, Journal of Sports Science & Medicine
Sep2023
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=172028611&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 172028611 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13032968 FYN jtl: Journal of Sports Science & Medicine issn: 13032968 maglogo: N pubinfo: dt: Sep2023 vid: 22 iid: 3 pid: 26030 pub: Hakan Gur, Journal of Sports Science & Medicine artinfo: ui: 172028611 172028611 172028611 10.52082/jssm.2023.512 172028611 ppf: 512 ppct: 14 formats: fmt: @attributes: type: P tig: atl: An Acute Transition from Rearfoot to Forefoot Strike does not Induce Major Changes in Plantarflexor Muscles Activation for Habitual Rearfoot Strike Runners. aug: au: Kovács, Bálint Petridis, Leonidas Négyesi, János Sebestyén, Örs Ye Jingyi Jingfeng Zhang Yaodong Gu Tihanyi, József affil: Ningbo University, Faculty of Sport Science, Ningbo, China sug: subj: Running Physiology Foot Physiology Biomechanics Running, Distance Plantarflexion Physiology Muscle, Skeletal Physiology Human Sporting Events Electromyography Knee Joint Gastrocnemius Muscle Kinematics Ankle Joint Flexion Physiology Male Female Experimental Studies Male Female ab: Footstrike pattern has received increased attention within the running community because there is a common belief that forefoot strike running (FFS) is more advantageous (i.e., improve performance and reduce running injuries) than rearfoot strike running (RFS) in distance running. Literature reports suggest greater knee joint flexion magnitude and initial knee angle during stance in FFS compared with RFS running We examined the EMG activation of the triceps surae muscles during an acute transition from RFS to FFS strike. We tested the hypothesis that due to larger knee flexion in FFS the gastrocnemius muscles possibly decrease their EMG activity because muscle fascicles operate under unfavorable conditions. Fourteen competitive healthy middle- and long-distance runners who were habitual RFS runners ran on a treadmill at three speeds: 12, 14, and 16 km.h-1. Each running speed was performed with both FFS and RFS patterns. Lower limb kinematics in the sagittal plane and normalized electromyography (EMG) activity of medial gastrocnemius proximal, middle and distal regions, lateral gastrocnemius and soleus muscles were compared between footstrike patterns and running speeds across the stride cycle. Contrary to our expectations, the knee joint range of motion was similar in FFS and RFS running. However, the sagittal plane ankle joint motion was greater (p < 0.01) while running with FFS, resulting in a significantly greater muscle- tendon unit lengthening (p < 0.01) in FFS compared with RFS running. In addition, medial and lateral gastrocnemius showed higher EMG activity in FFS compared with RFS running in the late swing and early stance but only for a small percentage of the stride cycle. However, strike patterns and running speed failed to induce region-specific activation differences within the medial gastrocnemius muscle. Overall, well-trained RFS runners are able to change to FFS running by altering only the ankle joint kinematics without remarkably changing the EMG activity pattern. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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