Clinical Trial: Whole Body Periodic Acceleration on Blood Lactate and Recovery

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: The Effects of Whole Body Periodic Acceleration on Blood Lactate and Recovery in Trained Individuals

Brief Summary:

Whole-body periodic acceleration (WBPA) is a new, non-invasive, and promising therapy for a diverse and growing list of disorders including cardiovascular disease 6. During WBPA, patients lie in the supine position on a bed that is capable of translating back and forth parallel to the ground, along the head-to-foot axis of the patient. Thus, this treatment is best described as a form of "passive exercise." The frequency of the translation (up to 180 cycles/minute; cpm) as well as the distance traveled (2-24mm) by the bed can be adjusted by the patient or health care professional.

The science behind the therapeutic effects of WBPA still remains largely unknown.

The objective of this study is to determine if WBPA may be used as an effective way to reduce lactic acid concentrations during recovery after intense exercise more rapidly than previously established methods.


Detailed Summary:

Each visit Subjects will perform a graded treadmill exercise test. They will rest for 10 minutes. At the end of the rest period, resting vital signs (HR and BP) will be recorded as well as resting oxygen consumption (VO2). Resting capillary blood sample will be taken and analyzed by the Accutrend portable lactate analyzer to measure blood lactate levels. The cardiac and metabolic recordings will be measured by PFT GX machine (Medgraphics Ultima; St. Paul, Minnesota) that will record VO2, VCO2, RER (respiratory exchange ratio), Ve. Heart Rate will be monitored by a Polar® HR monitor. This machine is attached to a motorized treadmill with handrails. Each subject will perform a Modified Bruce Protocol which consists of a maximum of five 3-minute stages. The criteria set for peak exercise is one of the following: 1) 90% of THR; 2) a plateau of oxygen uptake is indicated; 3) if the subject is unable to maintain the pace of the treadmill; 4) an RER of over 1.0 and/or 5) a plateau in Ve (3). Additionally, the American College of Sports Medicine (ACSM) guidelines for terminating exercise testing will be followed(American College of Sports Medicine).

TIMELINE of PROCEDURES

The following recoveries will be tested on 3 separate days:

Visit 1 The subject will walk at 30-40 % of V02 max for the next 20 minutes on the treadmill after peak exercise. Blood lactate will be taken at minute 20.

Visit 2 The subject will be taken off the treadmill after a 3 minute walk and placed on the WBPA bed. The horizontal displacement will be held constant at 14 mm, and cycles/min will be held constant at 140. There is a footboard where the subjects feet are strapped in while wearing their own shoes. The platform moves in a repetitive motion from head
Sponsor: New York Institute of Technology

Current Primary Outcome: Blood Lactate [ Time Frame: 20 minutes post exercise ]

We will use a finger stick to collect plasma post exercise


Original Primary Outcome: Same as current

Current Secondary Outcome: Oxygen Uptake [ Time Frame: 20 minutes post exercsie ]

Oxygen uptake is measured by a subject wearing a mask that measures what they exhale.


Original Secondary Outcome: Same as current

Information By: New York Institute of Technology

Dates:
Date Received: June 23, 2015
Date Started: June 2015
Date Completion:
Last Updated: January 19, 2016
Last Verified: January 2016