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Full-Text Articles in Medicine and Health Sciences

Post-Activation Potentiation: Decay Or Fatigue Delay, Ryan L. Meidinger Aug 2017

Post-Activation Potentiation: Decay Or Fatigue Delay, Ryan L. Meidinger

All NMU Master's Theses

Post-activation potentiation has been shown to improve jumping performance and other ballistic activities. The improvements in performance have been attributed to four main mechanisms, but the most important mechanism to the current study is the improvement in neural activity that leads to greater levels of potentiation. Post-activation potentiation has been shown to be stimulated by a maximal activity, called a conditioning contraction, and can be used as a warm up. In studies that have not shown the effects of post-activation potentiation, the proposed reason is fatigue, but the interaction of post-activation potentiation and fatigue have not been thoroughly tested. The …


The Effect Of Hyperthermic Whole Body Heat Stimulus (Sauna) On Heat Shock Protein 70 And Skeletal Muscle Hypertrophy In Young Males During Weight Training, Brandon C. Jones Mr. Aug 2017

The Effect Of Hyperthermic Whole Body Heat Stimulus (Sauna) On Heat Shock Protein 70 And Skeletal Muscle Hypertrophy In Young Males During Weight Training, Brandon C. Jones Mr.

All NMU Master's Theses

The traditional Finnish steam sauna is theorized to aid skeletal muscle hypertrophy by stimulating Heat Shock Protein 70 (HSP70), which acts as a molecular chaperone to the folding of functional skeletal muscle. The aim of this study was to investigate if stimulating HSP70 by using a sauna (45 – 50 ͦC, 80% Humidity) three times per week, for 15 minutes, could aid skeletal muscle hypertrophy during six weeks of resistance training in a young (21.38 ± 1.9 yrs.), recreationally trained male population. Thirteen subjects were randomly distributed into 3 groups [resistance Training + sauna (RT+S, n=5), RT + Relaxation (RT+R, …


The Acute And Chronic Effects Of Highly Cushioned Shoes On Loading Characteristics In Recreational Runners, Jessica Corkin Aug 2017

The Acute And Chronic Effects Of Highly Cushioned Shoes On Loading Characteristics In Recreational Runners, Jessica Corkin

All NMU Master's Theses

Recently, highly cushioned shoes (HCS) entered the running market, and manufacturers suggested extra cushioning potentially reduced injury rates through superior shock absorption, implying less impact upon foot strike versus other shoes. Hence, the purpose of this study was to examine the effects of a 4-week HCS intervention on running-related impact forces in adult recreational runners. We hypothesized HCS would result in altered force attenuation compared to standard cushioned shoes (SCS) at baseline. After 4-weeks, we speculated differences would not be attenuated. Twenty-nine healthy runners (18-60 yrs of age) who had never worn HCS were randomized to either an intervention (INV) …