KINS 4601 – Final Project
Final Project: Post-exercise hypotension following aerobic exercise
Final Project Lab Assignment (50 pts)
Many studies have reported evidence of post-exercise hypotension immediately following an acute bout of exercise. Post-exercise hypotension is defined as reduced systolic and/or diastolic blood pressure below resting pre-exercise values after one session of exercise. This effect is seen in both normotensive and hypertensive individuals. For example, in young, healthy, normotensive individuals, moderate-intensity endurance exercise performed for 30-60 minutes has been found to decrease blood pressure by 5-10 mmHg for several hours post-exercise.
Mechanistically, post-exercise hypotension is largely due to hemodynamic changes related to blood flow-mediated shear stress on blood vessel walls, resulting in the production of vasodilatory substances that reduce systemic vascular resistance. Furthermore, cardiac output returns to pre-exercise values much more quickly after exercise, contributing to the post-exercise hypotensive response. Similar to the cardiovascular drift response, performing endurance exercise in high ambient temperatures may augment this post-exercise hypotensive response. Passive exposure to heat has been shown to cause similar reductions in systemic vascular resistance. Performing moderate-intensity exercise in high ambient temperatures has been shown to produce a greater hypotensive response post-exercise in health, young adults. Thus, the combination of performing endurance exercise in high ambient temperatures may be an important environmental stimulus for post-exercise hypotension responses.
The purpose of this final project includes the following:
1. Use external tools (e.g., PubMed, Google Scholar) to search the pre-existing literature to gain a greater understanding of concepts related to post-exercise hypotension.
2. To gain experience in searching literature, formulating opinions, and presenting information using the literature search in a summarized and succinct format.
Students will gain a greater understanding of the relationship between post-exercise hypotension and the intensity of endurance exercise, as well as post-exercise hypotension and the modality of exercise (resistance vs endurance). For the future practitioner in the exercise science field, it is important to understand the concept of post-exercise hypotension, as it may directly affect post-exercise recovery.
I will provide an instructional video on how to perform a literature search for both PubMed and Google Scholar. You can use other resources that are outside of PubMed and Google Scholar as well. Your lab report should follow APA format and each question/topic should include at least 5 references (5 per question). I will provide a video on how to cite references as well if you’re unsure on how to do both in-text citations and/or a reference page.
Format:
· Times New Roman, Arial, Cali
i
· 12-point font & double-spaced
· Minimum page length per question = 1; Maximum page length per question = 2
QUESTIONS
1. Explain or discuss potential differences in post-exercise hypotension that exist between moderate and high intensity aerobic exercise. Are the post-exercise hypotension responses the same? Different? Provide your statement based upon research that has looked into this question and be sure to provide reasons/mechanisms or a rationale for why they might have similar or different effect.
2. Explain or discuss potential difference in post-exercise hypotension that exist between resistance and aerobic exercise (regardless of intensity). Do they have similar effects on post-exercise hypotension? Does one have greater effects? Again, explain your statement based upon previous research and be sure to provide reasoning or rationale for your answer.