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Full-Text Articles in Kinesiology
Sex Impact On Knee And Ankle Muscle Extensor Forces During Loaded Running, Kade D. Wagers, Nicholas J. Lobb, Auralea C. Fain, Kayla D. Seymore, Tyler N. Brown
Sex Impact On Knee And Ankle Muscle Extensor Forces During Loaded Running, Kade D. Wagers, Nicholas J. Lobb, Auralea C. Fain, Kayla D. Seymore, Tyler N. Brown
Kinesiology Faculty Publications and Presentations
Background: This study determined whether the knee and ankle muscle extensor forces increase when running with a body-borne load and whether these forces differ between the sexes. Methods: Thirty-six (twenty male and sixteen female) adults had the knee and ankle extensor force quantified when running 4.0 m/s with four body-borne loads (20, 25, 30, and 35 kg). Peak normalized (BW) and unnormalized (N) extensor muscle force, relative effort, and joint angle and angular velocity at peak muscle force for both the ankle and the knee were submitted to a mixed model ANOVA. Results: Significant load by sex interactions for knee …
Hip Torque Is A Mechanistic Link Between Sprint Acceleration And Maximum Velocity Performance: A Theoretical Perspective, Kenneth P. Clark, Laurence J. Ryan
Hip Torque Is A Mechanistic Link Between Sprint Acceleration And Maximum Velocity Performance: A Theoretical Perspective, Kenneth P. Clark, Laurence J. Ryan
Kinesiology Faculty Publications
Sprinting performance is critical for a variety of sports and competitive activities. Prior research has demonstrated correlations between the limits of initial acceleration and maximum velocity for athletes of different sprinting abilities. Our perspective is that hip torque is a mechanistic link between these performance limits. A theoretical framework is presented here that provides estimates of sprint acceleration capability based on thigh angular acceleration and hip torque during the swing phase while running at maximum velocity. Performance limits were calculated using basic anthropometric values (body mass and leg length) and maximum velocity kinematic values (contact time, thigh range of motion, …