Related Experiment Video
Updated: May 11, 2026

Influence of Step-Width Manipulation on Running Biomechanics
Published on: February 28, 2025
Weight's effect on impact acceleration in time and frequency domain in recreational runners
Rubén Bruna-Lázaro1, Esther Sánchez-Ribes1, Paula Wessling-Intriago2
1Research Group in Sports Biomechanics (GIBD), Department of Physical Education and Sports, University of Valencia 46010 Valencia, Spain.
Abstract:
Running with load is common for trail and ultra-trail runners and can affect running biomechanics. However, there is a lack of literature about the interaction between cadence and additional load while running. This study investigates the effects of added weight and cadence on tri-axial impact accelerations and spatiotemporal variables in time and frequency domain analysis. Twenty recreational runners participated in a 30' treadmill protocol at 2.78 m/s under three weight conditions: no added weight, 5%, and 10% of body weight (BW), and running with two cadence conditions: Free and Fixed at 165 steps per minute (spm). A repeated measures ANOVA was performed to assess the effects of weight and cadence on dependent variables. Added weight significantly increased (p < 0.05) cadence and reduced stride length (SL). In time domain, weight increased (p < 0.05) vertical shock attenuation (VSA) and vertical ratio (VRt), while in frequency domain increased frequency of peak power in the low-frequency range in the vertical (V) and mediolateral (ML) axes (p < 0.05), with the anteroposterior (AP) axis being the least affected. While added weight influenced cadence and SL, and acceleration variables in the three axes, peak power in the high frequency range and acceleration peaks remained stable, suggesting a nuanced interaction between weight and cadence.
More Related Videos
08:26Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running
Published on: July 17, 2020
06:35Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running
Published on: September 14, 2017
Related Concept Videos
Instantaneous Acceleration
Measuring Acceleration Due to Gravity
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
Velocity and Acceleration of a Wave
The velocity of the particles can be obtained by taking the partial derivative of the position equation with respect to time. We can...
Average Acceleration
Impact Loading
In cases of elastic deformation,...
Impact
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...