The Affects of Treadmill Inclination on a Blood Lactate Accumulation at Steady State Workloads
Location
CSU
Student's Major
Human Performance
Student's College
Allied Health and Nursing
Mentor's Name
Mary Visser
Mentor's Department
Human Performance
Mentor's College
Allied Health and Nursing
Second Mentor's Name
Jeff Gilbert
Second Mentor's Department
Human Performance
Second Mentor's College
Allied Health and Nursing
Description
The intent of this project is to assess the levels of blood lactate accumulation (BLa) at different steady state submaximal workloads. We hypothesize that BLa is more strongly associated with changes in muscle fiber recruitment and the associated mass action affect than with hypoxia of local tissues. Pilot data indicates that BLa is independent of oxygen demand. Approximately ten, trained, college- aged male and female subjects have been recruited for this investigation. Subjects will perform two submaximal workloads on two separate days, which will be individualized to elicit steady state workloads approximately equal to 50 to 55% of their maximal oxygen consumption. The two workloads will vary in percent grade (from 1% to 10%). Velocity will be adjusted to elicit the same fraction of the subject's maximal oxygen uptake. Subjects will maintain each workload a minimum of fifteen minutes to ensure a steady state workload is achieved and BLa values are stabilized. Blood lactate will be measured using an Accusport whole blood analyzer. Data will be analyzed with a dependent /-Test at the 0.05 level of significance.
The Affects of Treadmill Inclination on a Blood Lactate Accumulation at Steady State Workloads
CSU
The intent of this project is to assess the levels of blood lactate accumulation (BLa) at different steady state submaximal workloads. We hypothesize that BLa is more strongly associated with changes in muscle fiber recruitment and the associated mass action affect than with hypoxia of local tissues. Pilot data indicates that BLa is independent of oxygen demand. Approximately ten, trained, college- aged male and female subjects have been recruited for this investigation. Subjects will perform two submaximal workloads on two separate days, which will be individualized to elicit steady state workloads approximately equal to 50 to 55% of their maximal oxygen consumption. The two workloads will vary in percent grade (from 1% to 10%). Velocity will be adjusted to elicit the same fraction of the subject's maximal oxygen uptake. Subjects will maintain each workload a minimum of fifteen minutes to ensure a steady state workload is achieved and BLa values are stabilized. Blood lactate will be measured using an Accusport whole blood analyzer. Data will be analyzed with a dependent /-Test at the 0.05 level of significance.
