Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns

# Background A forefoot strike (FFS) could be a safer landing technique than a rearfoot strike (RFS) during a cutting motion to prevent anterior cruciate ligament (ACL) injury. # Purpose This study aimed to determine the joint angles, ground reaction force (GRF), and muscle activity levels asso...

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Autores principales:	Naruto Yoshida, Shun Kunugi, Takehiro Konno, Akihiko Masunari, Satoru Nishida, Takashi Koumura, Naoyuki Kobayashi, Shumpei Miyakawa
Formato:	article
Lenguaje:	EN
Publicado:	North American Sports Medicine Institute 2021
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/0619fad901584643810c5f7b1d0272f9
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spelling	oai:doaj.org-article:0619fad901584643810c5f7b1d0272f92021-12-02T16:01:45ZDifferences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns10.26603/001c.235512159-2896https://doaj.org/article/0619fad901584643810c5f7b1d0272f92021-06-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/23551-differences-in-muscle-activities-and-kinematics-between-forefoot-strike-and-rearfoot-strike-in-the-lower-limb-during-180-turns.pdfhttps://doaj.org/toc/2159-2896# Background A forefoot strike (FFS) could be a safer landing technique than a rearfoot strike (RFS) during a cutting motion to prevent anterior cruciate ligament (ACL) injury. # Purpose This study aimed to determine the joint angles, ground reaction force (GRF), and muscle activity levels associated with FFS and RFS landings during 180° turns. # Study design Cross-sectional study # Methods Fourteen male soccer players from the University of Tsukuba football (soccer) club participated in this study. The FFS consisted of initial contact with the toes on the force plates followed by the rearfoot; meanwhile, the initial contact was performed with the heels on the force plates followed by the forefoot for the RFS. Ankle, knee, and hip joint angles were recorded using a three-dimensional motion capture system. GRFs were measured using a force plate. Gluteus medius (GM), rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), semitendinosus (ST), biceps femoris (BF), tibialis anterior (TA), and lateral gastrocnemius (GL) activities were measured by electromyography. # Results The activities of GM, GL, and ST from initial contact to early periods during landing into the ground with the FFS are larger than those with RFS. In addition, the results showed significant differences in lower-limb angles and GRFs between the FFS and RFS. # Conclusion These results suggest that there might be differences in ACL injury risk during a 180° turn between the FFS and the RFS pattern. An investigation into the grounding method that prevents injury is necessary in future studies. # Levels of Evidence Level 3bNaruto YoshidaShun KunugiTakehiro KonnoAkihiko MasunariSatoru NishidaTakashi KoumuraNaoyuki KobayashiShumpei MiyakawaNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Naruto Yoshida Shun Kunugi Takehiro Konno Akihiko Masunari Satoru Nishida Takashi Koumura Naoyuki Kobayashi Shumpei Miyakawa Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
description	# Background A forefoot strike (FFS) could be a safer landing technique than a rearfoot strike (RFS) during a cutting motion to prevent anterior cruciate ligament (ACL) injury. # Purpose This study aimed to determine the joint angles, ground reaction force (GRF), and muscle activity levels associated with FFS and RFS landings during 180° turns. # Study design Cross-sectional study # Methods Fourteen male soccer players from the University of Tsukuba football (soccer) club participated in this study. The FFS consisted of initial contact with the toes on the force plates followed by the rearfoot; meanwhile, the initial contact was performed with the heels on the force plates followed by the forefoot for the RFS. Ankle, knee, and hip joint angles were recorded using a three-dimensional motion capture system. GRFs were measured using a force plate. Gluteus medius (GM), rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), semitendinosus (ST), biceps femoris (BF), tibialis anterior (TA), and lateral gastrocnemius (GL) activities were measured by electromyography. # Results The activities of GM, GL, and ST from initial contact to early periods during landing into the ground with the FFS are larger than those with RFS. In addition, the results showed significant differences in lower-limb angles and GRFs between the FFS and RFS. # Conclusion These results suggest that there might be differences in ACL injury risk during a 180° turn between the FFS and the RFS pattern. An investigation into the grounding method that prevents injury is necessary in future studies. # Levels of Evidence Level 3b
format	article
author	Naruto Yoshida Shun Kunugi Takehiro Konno Akihiko Masunari Satoru Nishida Takashi Koumura Naoyuki Kobayashi Shumpei Miyakawa
author_facet	Naruto Yoshida Shun Kunugi Takehiro Konno Akihiko Masunari Satoru Nishida Takashi Koumura Naoyuki Kobayashi Shumpei Miyakawa
author_sort	Naruto Yoshida
title	Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
title_short	Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
title_full	Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
title_fullStr	Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
title_full_unstemmed	Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns
title_sort	differences in muscle activities and kinematics between forefoot strike and rearfoot strike in the lower limb during 180° turns
publisher	North American Sports Medicine Institute
publishDate	2021
url	https://doaj.org/article/0619fad901584643810c5f7b1d0272f9
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Differences in Muscle Activities and Kinematics between Forefoot Strike and Rearfoot Strike in the Lower Limb during 180° Turns

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