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Design of Manual Handling and Load Carriage Tasks
Published in R. S. Bridger, Introduction to Human Factors and Ergonomics, 2017
Nonspecific foot pain near the ball of the foot. Usually caused by ill-fitting footwear, the risk can be increased when walking with heavy loads for long distances, particularly if the load is unbalanced. With heavy loads, people tend to lean forward when walking, which places additional load on the front of the foot. Balancing the load on the front as well as the rear of the trunk can restore a more upright posture and more even distribution of load throughout the gait cycle.
Reliable and effective novel home-based training set-up for application of an evidence-based high-loading stimulus to improve triceps surae function
Published in Journal of Sports Sciences, 2021
Goran Radovanović, Jona Kunz, Sebastian Bohm, Adamantios Arampatzis, Kirsten Legerlotz
Participants were advised to sit with extended knees. The forefoot (with shoes) was placed in the foot plate with the widest part of the shoe (i.e. ball of the foot) positioned in the sagittal centre of the foot plate pad to ensure a standardised contact point. The participants were advised to always use the same shoes with a rigid sole. The ratchet was individually set and fixed as tightly as possible, to allow for maximal isometric plantar flexor contractions at a standardised ankle angle position (90°) (Figure 2). The straps on both sides of the pelvis were placed as close as possible to the hip bone (i.e. os ilium) to reduce spinal load. It was recommended to place one hand on the ground behind the body providing a hip (i.e. femur-to-spine) angle of >90°. For standardised alignment during the contractions, both legs had to be parallel in the frontal plane and in neutral rotational position in the hip joints in the transverse plane.