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Jay H' Heaney, M'A'

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Jay H' Heaney, M'A' – PowerPoint PPT presentation

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Title: Jay H' Heaney, M'A'


1
THE USE OF HEAT TOLERANCE TESTING FOR NAVY AND
MARINE CORPS PERSONNEL
  • Jay H. Heaney, M.A.
  • Naval Health Research Center
  • Warfighter Performance Department
  • email jay.heaney_at_med.navy.mil

2
NHRC
Within the Bureau of Medicine and Surgery
(BUMED), NHRC is the main Navy Medical RD
laboratory for human performance research of Navy
and Marine Corps personnel.
3
Heat Tolerance Testing in the Navy
  • HTTs have been conducted to support
  • SPECWAR BUDs (training) and SEALs (MOS)
  • PPE related events
  • Physical Evaluation Board

4
SPECWAR Heat Injury / HTT Policy
  • BUDs
  • Heat injury occurs prior to hell week med
    drop
  • Heat injury occurs post hell week return to
    training
  • EOD/Special Boats
  • If candidate has a prior heat injury, a negative
    HTT is required

5
HTT Protocol
  • Based on IDF protocol (Shapiro, Epstein, Moran)
  • Dry Bulb 40C/104F - Relative Humidity
    40
  • 120 min treadmill walk at 3.2mph / 4 grade
  • Core Temperature 38.6C/101.5F
  • Heart Rate 160 bpm

6
NHRC Heat Tolerance Testing
  • NHRC has conducted 38 HTTs on Navy (n33) and
    Marine Corps (n5) personnel.
  • 27 Negative tests
  • 11 Positive tests

7
Return to Duty / Training
  • BUDs 22 HTTs
  • 16 pass (return to training) / 6 fail (med drop)
  • 8 of 16 became SEALS 5 dropped 3 no data
  • SEALs/EOD
  • 4 pass (return to duty-deployed) / 1 fail (EOD
    candidate)
  • MOPP clothing related 2 pass (return to duty)
  • PEB 1 pass (return to duty) / 1 fail
    (separated)

8
HTT Positive / Negative Results
9
HTT 2 years apart / BUDs - EOD
10
HTT 4 months apart / SEAL
11
HTT 3 months apart / BUDs-EOD
12
HTT 9 months apart / SEAL
13
HTT 10 months apart / SEAL
14
Field Heat Tolerance Test
  • Modified Heat Tolerance Test
  • Evaluation tool for Forward Deployed Personnel
  • Conducted under existing ambient conditions
  • 80-120ºF / 50 RH
  • Intermittent work/rest protocol

15
Heart Rate
DB 100ºF RH 40
16
Core Temperature
DB 100ºF RH 40
17
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