China
Africa
Explore chapters and articles related to this topic
Functional Anatomy and Biomechanics
Published in Emeric Arus, Biomechanics of Human Motion, 2017
The active stabilizers of the longitudinal arch of the foot are abductor hal- lucis, flexor hallucis brevis, flexor digitorum brevis, quadratus plantae, and abductor digiti minimi. These are the short muscles of the foot. The primary passive stabilizers are the plantar aponeurosis, the long plantar ligament, and the plantar calcaneonavicular (spring) ligament. The flexor hallucis longus and the flexor digitorum longus are the secondary passive stabilizers.
Comparison of foot posture and foot muscle morphology between lifesaver athletes and healthy adults
Published in Research in Sports Medicine, 2023
Shota Ichikawa, Tsukasa Kumai, Takumi Okunuki, Toshihiro Maemichi, Masatomo Matsumoto, Hiroki Yabiku, Zijian Liu, Ryusei Yamaguchi, Arina Iwayama, Goro Ayukawa, Yui Akiyama, Hiroyuki Mitsui, Hisateru Niki
The cross-sectional area of the intrinsic muscles of the foot (lifesaver group: healthy adult group) was as follows: abductor hallucis (3.16 ± 0.65 cm2: 2.51 ± 0.67 cm2) (P = 0.012, ESs = 0.98), abductor digitorum minimi (1.58 ± 0.44 cm2: 1.10 ± 0.20 cm2) (p < 0.001, ESs = 1.4), flexor digitorum brevis (2.61 ± 0.68 cm2: 2.15 ± 0.47 cm2) (P = 0.045, ESs = 0.79), and flexor hallucis brevis (2.52 ± 0.70 cm2: 1.38 ± 0.46 cm2) (P = 0.001, ESs = 1.92). The cross-sectional area of the extrinsic muscles of the ankle joint (lifesaver group: healthy adult group) was as follows: posterior tibialis (5.32 ± 1.03 cm2: 4.13 ± 0.90 cm2) (P = 0.002, ESs = 1.23), extensor digitorum longus (3.72 ± 0.89 cm2: 3.03 ± 0.56 cm2) (P = 0.016, ESs = 0.93), and flexor digitorum longus (2.83 ± 0.64 cm2: 2.23 ± 0.75 cm2) (P = 0.03, ESs = 0.86); the muscle cross-sectional area was significantly increased in the lifesaver group. (Table 3).
Characteristics of lower leg and foot muscle thicknesses in sprinters: Does greater foot muscles contribute to sprint performance?
Published in European Journal of Sport Science, 2019
Takahiro Tanaka, Tadashi Suga, Yuya Imai, Hiromasa Ueno, Jun Misaki, Yuto Miyake, Mitsuo Otsuka, Akinori Nagano, Tadao Isaka
The measured foot muscles were as follows: flexor digitorum longus (FDL), flexor hallucis longus (FHL), peroneal longus and brevis (PLB), abductor hallucis (AbH), flexor digitorum brevis (FDB), and flexor hallucis brevis (FHB). Thicknesses of these foot muscles were measured based on the method used in previous studies (Angin et al., 2014; Crofts et al., 2014; Mickle et al., 2013). Briefly, thicknesses of the FDL and FHL were measured at 50% of the distance from the medial tibial plateau to the inferior border of the medial malleolus. Thickness of the PLB was measured at 50% of the distance from the fibular head to the inferior border of the lateral malleolus. Thickness of the AbH was measured at a section of muscle belly along an axial line between the medial malleolus tuberosity of the tibia and navicular tuberosity. Thickness of the FDB was measured at a section along a longitudinal line from the medial tubercle of the calcaneus to the third toe. Thickness of the FHB was measured at the section along a transverse line drawn at 50% of the distance between the medial tibial plateau and inferior border of the medial malleolus on the posterior aspect of the tibia.
The relationship between toe grip strength and intrinsic muscle morphology
Published in Footwear Science, 2019
Joanna Emma Reeves, Richard Jones, Anmin Liu, Leah Bent, Christopher Nester
Ultrasound images of the right foot were recorded to obtain CSA and thickness of the abductor hallucis (AbH), flexor hallucis brevis (FHB), and the flexor digitorum brevis (FDB) at their thickest points using a MyLab 70 Xvision (13 MHz linear array transducer, Type, LA523, Esoate Europe, Genoa, Italy). Two images were taken per structure. For thickness, a mean of three measurements were taken per image and for CSA a mean of two measurements per image. Images were analysed in ImageJ (NIH, Bethesda, MD, USA).