Nader Farahpour1, AmirAli Jafarnezhadgero2, Paul Allard3, Mahdi Majlesi4. 1. Kinesiology Department, Bu-Ali Sina University, Hamedan, Iran. Electronic address: naderfarahpour1@gmail.com. 2. Department of Physical Education and Sport Sciences, University of Mohaghegh Ardabili, Ardabil, Iran. Electronic address: a.jafarnezhad@uma.ac.ir. 3. Department of Kinesiology, University of Montreal, Montreal, QC, Canada. Electronic address: paul.allard@umontreal.ca. 4. Kinesiology Department, Faculty of Humanities, Islamic Azad University, Hamedan Branch, Hamedan, Iran. Electronic address: Majlesi@iauh.ac.ir.
Abstract
The objectives of this study were to investigate whether excessive feet pronation alters the joints' kinematics, kinetics and the activity of involved muscles during gait in low back pain patients. METHODS: The lower limb joints' motion, moment and power, as well as the activity of involved muscles during walking were measured in a control group, and two experimental groups including a group with excessive feet pronation only, and another group of low back pain patients with excessive feet pronation. RESULTS: In both experimental groups, ankle inversion, knee flexion and internal rotation, hip internal rotation, plantar flexors' moment, hip flexors' moment, and peak positive ankle power were lower than those in control group (p < .05). Besides, in patients, higher activity of gastrocnemius medialis, gluteus medius, erector spinae, and internal oblique muscles, and lower negative power at the ankle and peak positive power at the knee were observed (p < .05). In conclusion, pronated feet with low back pain was associated with less ankle inversion and knee flexion, higher knee and hip internal rotation, higher muscle activity, less energy absorption at the ankle, and reduced positive power at the knee. This study reveals that strengthening of the muscles especially knee extensors are of great importance in low back pain patients with feet pronation.
The objectives of this study were to investigate whether excessive feet pronation alters the joints' kinematics, kinetics and the activity of involved muscles during gait in low back painpatients. METHODS: The lower limb joints' motion, moment and power, as well as the activity of involved muscles during walking were measured in a control group, and two experimental groups including a group with excessive feet pronation only, and another group of low back painpatients with excessive feet pronation. RESULTS: In both experimental groups, ankle inversion, knee flexion and internal rotation, hip internal rotation, plantar flexors' moment, hip flexors' moment, and peak positive ankle power were lower than those in control group (p < .05). Besides, in patients, higher activity of gastrocnemius medialis, gluteus medius, erector spinae, and internal oblique muscles, and lower negative power at the ankle and peak positive power at the knee were observed (p < .05). In conclusion, pronated feet with low back pain was associated with less ankle inversion and knee flexion, higher knee and hip internal rotation, higher muscle activity, less energy absorption at the ankle, and reduced positive power at the knee. This study reveals that strengthening of the muscles especially knee extensors are of great importance in low back painpatients with feet pronation.
Authors: Sean Sadler; Samuel Cassidy; Benjamin Peterson; Martin Spink; Vivienne Chuter Journal: BMC Musculoskelet Disord Date: 2019-10-22 Impact factor: 2.362
Authors: Aurora Castro-Méndez; Inmaculada Concepción Palomo-Toucedo; Manuel Pabón-Carrasco; Javier Ramos-Ortega; Juan Antonio Díaz-Mancha; Lourdes María Fernández-Seguín Journal: Int J Environ Res Public Health Date: 2021-06-25 Impact factor: 3.390