2021
DOI: 10.3390/healthcare9101394
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Effects of Shoe Midsole Hardness on Lower Extremity Biomechanics during Jump Rope in Healthy Males

Abstract: This study investigated differences in lower extremity muscle activations and vertical stiffness during a 2.2 Hz jump rope exercise with different midsole hardnesses (45, 50, 55, and 60 Shores C). Twelve healthy male participants wore customized shoes with different hardness midsoles and performed jump rope exercises in a random order. A nine-camera motion analysis system (150 Hz), a force platform (1500 Hz), and a wireless electromyography (EMG) system (Noraxon, 1500 Hz) were used to measure the biomechanical… Show more

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Cited by 6 publications
(4 citation statements)
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“…Although fewer studies have investigated the effect of training on muscle activation levels in PT patients, we hypothesized that 8 weeks of high-load strength resistance (HSR) training would modulate the activation levels of the vastus medialis oblique (VMO), vastus lateralis oblique (VLO), and biceps femoris (BF) during eccentric squatting on an inclined platform in PT patients. A wireless surface electrode (Noraxon, USA) was used to record the muscle activations of the VMO,VLO,BF at a 1500 Hz sampling rate (43), to analyze the change in muscle activation during single-leg squats on a 25° inclined platform in subjects before and after the intervention. Prior to the start of the movement, all subjects were asked to perform a warm-up preparation activity on a stationary power bike for approximately 10 minutes.…”
Section: Horizontal Jumpmentioning
confidence: 99%
“…Although fewer studies have investigated the effect of training on muscle activation levels in PT patients, we hypothesized that 8 weeks of high-load strength resistance (HSR) training would modulate the activation levels of the vastus medialis oblique (VMO), vastus lateralis oblique (VLO), and biceps femoris (BF) during eccentric squatting on an inclined platform in PT patients. A wireless surface electrode (Noraxon, USA) was used to record the muscle activations of the VMO,VLO,BF at a 1500 Hz sampling rate (43), to analyze the change in muscle activation during single-leg squats on a 25° inclined platform in subjects before and after the intervention. Prior to the start of the movement, all subjects were asked to perform a warm-up preparation activity on a stationary power bike for approximately 10 minutes.…”
Section: Horizontal Jumpmentioning
confidence: 99%
“…Biomechanists have been studying ways to optimize sports equipment to improve athletic outcomes. This has led to a growing interest in understanding the biomechanics of jump rope movements and identifying factors that can positively impact performance [1,7,8]. There are various types of rope skipping, but they all involve continuous vertical jumps at a relatively low height.…”
Section: Introductionmentioning
confidence: 99%
“…It entails the consecutive landing of the left and right feet with a minimal jumping height and requires the lower extremity muscle to generate propulsion. The lateral edge of the forefoot and midfoot serves as the primary impact region during AJRS [7], with the ankle joint demonstrating the most joint power and range of motion (ROM) [8] among the lower extremity joints. AJRS had a greater hip flexion angle than bounced jump in the sagittal plane and a smaller hip adduction angle in the frontal plane [9].…”
Section: Introductionmentioning
confidence: 99%
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