Tc. Chan et al., REEXAMINATION OF CUSTODY RESTRAINT POSITION AND POSITIONAL ASPHYXIA, The American journal of forensic medicine and pathology, 19(3), 1998, pp. 201-205
The use of the hogtie restraint (also known as hobble or prone maximal
restraint) by law enforcement and prehospital personnel has come unde
r scrutiny because of reports of sudden deaths in persons placed in th
is restraint position. Some contend that this body position restricts
chest and abdominal movement to the point that individuals are at risk
for hypoventilatory respiratory compromise and ''positional'' asphyxi
ation. We review case reports of custody deaths in subjects placed in
the hogtie position, as well as related medical literature regarding p
ositional asphyxia. We also review the current research findings from
human physiology studies that have investigated the effects of the hog
tie position on respiratory and pulmonary function. We conclude that t
he hogtie restraint position by itself does not cause respiratory comp
romise to the point of asphyxiation and that other factors are respons
ible for the sudden deaths of individuals placed in this position.