Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Physiology
The Influence Of Handgrip And Pedal Cadence During Sustained Cycling Power Outputs, Randy Canivel, Frank B. Wyatt, Kinnari Prajapati, Nikesh Almeida, Sigal Patel, Diptesh Patel, Nikung Kalivada, Karishma Patel, Jayeshhumar Patel
The Influence Of Handgrip And Pedal Cadence During Sustained Cycling Power Outputs, Randy Canivel, Frank B. Wyatt, Kinnari Prajapati, Nikesh Almeida, Sigal Patel, Diptesh Patel, Nikung Kalivada, Karishma Patel, Jayeshhumar Patel
International Journal of Exercise Science: Conference Proceedings
In cycling performance, there has been interest in contribution the upper body (i.e. handgrip) provides during cycling efforts as well as power output during varying cadences. Little has been done pertaining to cardiovascular responses with the aforementioned during sustained power. PURPOSE: To determine the cardiovascular reactions to isometric hand-grip and different pedal cadences during sustained cycling efforts. METHODS: Subjects were nine (n=9) experienced cyclists. Each signed a medical-health and physical readiness questionnaire, and IRB approved informed consent. Resting values of heart rate (b*min.-1), blood pressure (mmHg), height (cm), weight (kg) and age (years) were assessed. A MonarkTM bicycle ergometer was …
Impact Of Blood Pressure Cuff Inflation Rates On Flow-Mediated Dilatation And Contralateral Arm Response, Hsin-Fu Lin, Mandeep Dhindsa, Takashi Tarumi, Steven Miles, Daniel Umpierre, Hirofumi Tanaka
Impact Of Blood Pressure Cuff Inflation Rates On Flow-Mediated Dilatation And Contralateral Arm Response, Hsin-Fu Lin, Mandeep Dhindsa, Takashi Tarumi, Steven Miles, Daniel Umpierre, Hirofumi Tanaka
International Journal of Exercise Science: Conference Proceedings
Flow-mediated dilatation (FMD) is widely used as an index of nitric oxide-mediated vasodilator function, yet its methodology has not been well established. Previous research indicates that rapid inflations of a blood pressure cuff evoke systemic vasoconstriction as it was observed on non-occluded contralateral arm. This would potentially contribute to the well-known variability of FMD readings and could complicate the emerging evidence that non-occluded contralateral arm responses during the FMD procedure is associated with the presence of coronary artery disease. Purpose: To test the hypotheses that fast inflation of a blood pressure cuff could reduce FMD values and influence contralateral vasodilatory …
Non-Invasive Techniques To Track Stroke Volume During Simulated Uncontrolled Hemorrhage, Chelsea R. Barrera (Undergraduate), Gilbert Moralez, Jesus I. Lara, Ashley Martinez, William H. Cooke
Non-Invasive Techniques To Track Stroke Volume During Simulated Uncontrolled Hemorrhage, Chelsea R. Barrera (Undergraduate), Gilbert Moralez, Jesus I. Lara, Ashley Martinez, William H. Cooke
International Journal of Exercise Science: Conference Proceedings
Battlefield medics and civilian first-responders have limited tools to assess the magnitude of blood loss in traumatically-injured patients. Accurate measures of stroke volume would provide important quantitative values for blood volume reductions, but battlefield medics and civilian first responders do not have access to standard laboratory methods to measure stroke volume. They may have access to arterial pulse wave detectors (for example, SPO2 monitors), but the usefulness of pulse wave detectors for determining stroke volume during hemorrhage has not been determined. PURPOSE: To compare stroke volumes estimated a with a standard laboratory rebreathing (RB) method to stroke volumes estimated from …
Thermographic Imaging To Detect Reductions Of Central Volume Induced By Simulated Hemorrhage, Ashley Martinez (Undergraduate Student), Gilbert Moralez, Chelsea R. Barrera, Jesus Lara, William H. Cooke (Ph.D)
Thermographic Imaging To Detect Reductions Of Central Volume Induced By Simulated Hemorrhage, Ashley Martinez (Undergraduate Student), Gilbert Moralez, Chelsea R. Barrera, Jesus Lara, William H. Cooke (Ph.D)
International Journal of Exercise Science: Conference Proceedings
Hemorrhage is the leading cause of death on the battlefield, but the magnitude of blood loss can be difficult to determine. Therefore, medics would benefit from advanced tools to detect blood loss. As skin temperature likely decreases with peripheral vasoconstriction, a portable thermographic imaging (TI) device capable of measuring skin temperature may assist in the detection hemorrhage. PURPOSE: To determine whether skin temperature measured with TI track stroke volume reductions during simulated hemorrhage. METHODS: We studied fifteen healthy volunteers (7 female and 8 male; 24±1 yrs; 171±3 cm; 69±3 kg). ECG, beat-by-beat finger arterial pressure (Finometer), respiratory rate (pneumobelt and …