The study will evaluate the impact of high velocity therapy (HVT) on reduction of work of breathing (as implied by breath frequency) and enhanced blood lactate decline during recovery from a Wingate-type Exercise test. The study will include four study segments, corresponding to four different therapy settings.
HVT has been found to be a useful clinical tool for treatment of Type 1 and Type 2 respiratory failure (including hypercapnic respiratory failure), acute decompensated heart failure, and COVID respiratory complications. The overall objective of this prospective, pilot study is to evaluate whether HVT might enhance the decline of blood lactate concentrations following a high intensity exercise bout, in healthy volunteers. The hypothesis is that HVT, regardless of the oxygen concentration (i.e., FiO2), will reduce the work of breathing and increase the lactate clearance rate during exercise and recovery intervals. This pilot study could ignite further research providing HVT applications to high performing athletics and patients in an acute care setting requiring physical rehabilitation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
15
FiO2=100% with Flow=5LPM FiO2=21% with Flow=25-35LPM FiO2=100% with Flow=25-35LPM FiO2=21% with Flow=5LPM
Auburn University
Auburn, Alabama, United States
Blood Lactate Change
The change in blood lactate starting from the exercise test throughout the recovery period
Time frame: At rest (TR) and during recovery from the Wingate test at minute 2 (T2) minute 4 (T4), minute 6 (T6), minute 8 (T8), minute 10 (T10) minute 15 (T15), minute 20 (T20), minute 25 (T25), minute 30 (T30) minute 40 (T40), minute 50 (T50) minute 60 (T60).
Respiratory Rate Change
The change in respiratory rate starting from the exercise test throughout the recovery period
Time frame: Prior to the Wingate test (TR) and after at 1min (T1), 2min (T2), 4min (T4), 6min (T6), 8min (T8), 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.
Heart Rate Change
The change in heart rate starting from the exercise test throughout the recovery period
Time frame: Prior to the Wingate test (TR) and after 2min (T2), 4min (T4), 6min (T6), 8min (T8), 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.
SpO2 Change
The change in SpO2 starting from the exercise test throughout the recovery period.
Time frame: Prior to the Wingate test (TR) and after at, 2min (T2), 4min (T4), 6min (T6), 8min (T8), 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.
Systolic Blood Pressure Change
The change in systolic blood pressure starting from the exercise test throughout the recovery period.
Time frame: Prior to the Wingate test (TR) and after at, 5min (T5) 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.
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Diastolic Blood Pressure Change
The change in diastolic blood pressure change starting from the exercise test throughout the recovery period.
Time frame: Prior to the Wingate test (TR) and after at, 5min (T5) 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.
Perceived Level of Exertion Change
The change in the subjects perceived level of exertion starting from after the exercise test throughout the recovery period. The scale will be 0-10; a lower score is a lower level of exhaustion, a higher score is a higher level of exhaustion.
Time frame: Immediately after the Wingate test (T0) and after at, 2min (T2), 4min (T4), 6min (T6), 8min (T8), 10min (T10), 15min (T15), 20min (T20), 25min (T25), 30min (T30), 40min (T40), 50 min (T50), and 60min (T60) into recovery.