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Full-Text Articles in Life Sciences

Investigation Into Characteristics Of Bench Press Using Push Band, Avery Peters, Kimitake Sato May 2019

Investigation Into Characteristics Of Bench Press Using Push Band, Avery Peters, Kimitake Sato

Undergraduate Honors Theses

Introduction: Sport scientist and strength coaches use resistance training to increase athletic performance and muscle hypertrophy. Improving muscular strength is the most essential task for these scientists, however, how best to identify weakness has yet to be established. The popularity of velocity-based resistance training has recently increased as a method to prescribe resistance training intensity, therefore, the purpose of the study was to identify the characteristics of bench press concentric velocity. It is hypothesized that the velocity output will decrease during the change from the 75% relative load of the 1RM to the 85% relative load of 1RM. It is ...


Effects Of Changing Prosthetic Foot Stiffness On 3d Hip Angles In Toddlers With Versus Without Unilateral Transtibial Amputations, Kaitlyn Jayne, Kara Ashcraft, Alena M Grabowski Jan 2019

Effects Of Changing Prosthetic Foot Stiffness On 3d Hip Angles In Toddlers With Versus Without Unilateral Transtibial Amputations, Kaitlyn Jayne, Kara Ashcraft, Alena M Grabowski

Undergraduate Honors Theses

Background: Pediatric prosthetists and physical therapists have observed that use of prosthetic feet with different stiffnesses affects external hip rotation during walking in toddlers with unilateral transtibial amputations (TTAs). A protocol for prescribing pediatric prosthetic feet is needed to minimize injury from improper biomechanics.

Methods: 12 toddlers participated in this study (9 non-amputee, 3 with a TTA). Three custom passive prosthetic feet were made for each toddler with a TTA. Kinetic and kinematic data was at 0.50 m/s. Peak hip joint angles and range of motion were determined in the sagittal, frontal, and transverse planes.

Results: The data ...


Do Humans Prioritize Time, Energy, Intensity… Or Something Else Altogether When Making Decisions About Walking On Level Vs. Uphill Surfaces?, Helena Gabrielle Meyer Jan 2019

Do Humans Prioritize Time, Energy, Intensity… Or Something Else Altogether When Making Decisions About Walking On Level Vs. Uphill Surfaces?, Helena Gabrielle Meyer

Undergraduate Honors Theses

During daily life, people walk from one point to another. Sometimes they choose to walk along designated paths; other times they take shortcuts. To determine how humans weigh costs like time, metabolic energy expenditure, and metabolic intensity, I studied subjects making walking decisions about walking up a hill vs. along a level surface for various distances. I hypothesized that subjects would be indifferent to walking uphill at an 8.5% grade vs. on the level when the two options required the same time or the same amount of metabolic energy.

Further, I hypothesized that subjects would walk at speeds such ...