Key result
Dorsal harness attachment resulted in shorter trial times and hemodynamic shifts indicating possible perfusion abnormalities compared to frontal attachment during 30-minute suspension.
Why the study?
Does dorsal harness attachment worsen hemodynamics and discomfort compared to frontal attachment in subjects undergoing 30-minute suspension?
Does dorsal harness attachment worsen hemodynamics and discomfort compared to frontal attachment in subjects undergoing 30-minute suspension?
Frontal harness attachment may be more suitable for extended exposure than dorsal attachment due to fewer hemodynamic abnormalities.
May warrant frontal harness preference in suspension; leaves open confirmation via randomized trials.
: Hanging motionless in a full body harness may result in unwanted events, such as acute hypotension and syncope, which has been termed harness suspension stress (HSS). The etiology of HSS has not been explored, and it is unknown if the type of harness influences the HSS response. OBJECTIVES: Evaluate hemodynamics, subjective discomfort, and biological markers of muscle damage during 30-minutes suspension; and evaluate differences between harness attachment (frontal or dorsal). METHODS: Heart rate, blood pressure, biological markers of muscle damage, and subjective discomfort were measured. RESULTS: Trial time was shorter in the dorsal versus frontal point of attachment. Hemodynamic shift resulted in the dorsal trial which indicated possible perfusion abnormalities. CONCLUSIONS: Hemodynamic adjustments contributed to early termination observed in the dorsal trial. A frontal point of attachment may be more suitable for extended harness exposure.
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Beverly et al. (2018) studied Harness suspension stress (HSS). Dorsal harness attachment vs. Frontal harness attachment was evaluated on Hemodynamics, subjective discomfort, and biological markers of muscle damage. Dorsal harness attachment resulted in shorter trial times and hemodynamic shifts indicating possible perfusion abnormalities compared to frontal attachment during 30-minute suspension.
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