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Functional Anatomy and Biomechanics
Published in Emeric Arus, Biomechanics of Human Motion, 2017
Another articular surface is the dorsal part of the patella which is connected to the ventral part of the femur. The patella has two slopes with two margins (lateral and medial). The ligamentous continuation of the quadriceps femoris tendon extends beyond the distal portion of the patella and attaches to the tuberosity of the tibia. In fact, the connection of the quadriceps femoris to the patella is called the quadriceps femoris tendon and the connection of the patella to the tibia is called the patellar ligament.
What to stretch? - Isolated proprioceptive neuromuscular facilitation stretching of either quadriceps or triceps surae followed by post-stretching activities alters tissue stiffness and jump performance
Published in Sports Biomechanics, 2022
Andreas Konrad, Wolfgang Seiberl, Markus Tilp, Denis Holzer, Florian Kurt Paternoster
For the stiffness assessment, the probe of the MyotonPro device was applied perpendicular to the tissue, as suggested by the manufacturer. The measurement sites for the different muscles were defined in accordance with Surface Electromyography for the Non-Invasive Assessment of Muscles (SENIAM) guidelines (Hermens et al., 1999) for electrode placement during surface electromyography measurements. For the AT, the assessment was conducted at the level of the medial malleolus (Schneebeli et al., 2020), and for the patellar tendon, the assessment was conducted at the midway point between the distal patellar rim and the tuberosity of the tibia (Klich et al., 2020). A permanent marker pen was used to highlight the positions on the skin. This allowed us to identify the same measurement positions, both within a session (pre and post intervention), but also between sessions (triceps surae stretching vs. quadriceps stretching).
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.
Analysis of muscular activity and dynamic response of the lower limb adding vibration to cycling
Published in Journal of Sports Sciences, 2018
Marcela Munera, William Bertucci, Sebastien Duc, Xavier Chiementin
The accelerometers were attached nearly to the ankle, knee and hip joint center using elastic bandages. According to one previous studies (Liikavainio et al., 2007), the low weight of the used accelerometers (approx. 4 grams) and its small surface, guarantee the reproducibility of the measures remaining unperturbed by possible influence of the soft tissue movement. The accelerometers were located on the skin above the lateral malleolus of the tibia (ankle), lateral tuberosity of the tibia (knee), and the anterior superior iliac spine (hip). Also, one accelerometer was attached to the pedal to provide measure of the input vibration. This value was used as a reference to compare the signals from the different body sites. All accelerometric data was acquired with a sampling frequency of 2560 Hz, which is well above the Nyquist criteria (Padulo, Chamari, & Ardigo, 2014).