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Red Spinach is a natural food which is a rich source of nitrates, which are beneficial in hemodynamics, cardiovascular function, and have natural hypotensive and antianginal effects. Red spinach extract has been shown to be beneficial in exercise performance, albeit mostly in aerobic exercise. In a previous study in our lab, we found that dietary nitrate consumption resulted in significantly greater isometric force production in teenage males. However, currently there is little know regarding the effects of dietary nitrate supplementation on isometric strength, resistance exercise and cognitive performance.
This research study is designed to measure the effects of red spinach extract (RSE) on markers of physical and cognitive performance during and following anaerobic exercise.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Placebo | Placebo Comparator |
| |
| Red Spinach Extract (RSE) | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Red Spinach Extract (RSE) | Dietary Supplement | Oral capsules containing 2g of Red Spinach Extract will be consumed daily for 7 days |
|
| Measure | Description | Time Frame |
|---|---|---|
| Bench Press Repetitions to Fatiuge | Number of repetitions completed in each set during the acute exercise bout will be recorded and analyzed | Through study completion, during both treatments (~4 weeks) |
| Bench Press Power | Power during bench press repetitions will be measured via a linear transducer. | Through study completion, during both treatments (~4 weeks) |
| Isometric Mid-thigh pull (IMTP) Peak Force | Peak Force will be measured via dual force plates during a full-body isometric strength test. | Through study completion, during both treatments (~4 weeks) |
| Isometric Mid-thigh pull (IMTP) Rate of Force Development | Rate of Force development will be measured via dual force plates during a full-body isometric strength test. | Through study completion, during both treatments (~4 weeks) |
| Measure | Description | Time Frame |
|---|---|---|
| Estimated Muscle Blood Flow via Near-infrared Spectroscopy (NIRS) | Measures of muscle oxygenation of the anterior deltoid will be estimated using a NIRS Device. | Through study completion, during both treatments (~4 weeks) |
| Cognitive Performance via Stroop Test |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Jeremy Townsend, PhD | Lipscomb University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Jeremy Townsend | Nashville | Tennessee | 37215 | United States |
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| Placebo | Dietary Supplement | Oral placebo capsules will be taken consisting of maltodrextrin daily for 7 days |
|
The Stroop Color and Word Test (SCWT) is a neuropsychological test used to assess cognitive performance. This will be administered before and after the fatiguing bench press protocol |
| Through study completion, during both treatments (~4 weeks) |