Table 1: Rescue strop summary 65 kg subject 80 kg subject 140 kg subject With hypothermic strap Strop With hypothermic strap Strop With hypothermic strap Achieved with difficulty. Easier. Achieved with difficulty. Easier. Struggled to keep arms Started getting in finger Ability to ‘tingling’ hold arms down. A lot of pressure tips after 1 minute 30 seconds down the arms and but able to keep hands clasped. around the chest area. Breathing Breathing was affected Much easier, only a little Unrestricted. Unrestricted. Breathing was Breathing easier but became making it hard to keep restricted. laboured and laboured towards end of trial. arms down. developed ‘shakes’. Comfort Fingers were Significantly reduced 90 seconds arms Pressure across back of Incredibly Significantly more comfortable, ‘tingling’. pressure the armpits. started knees. uncomfortable after some pressure the legs and ‘tingling’. 15 seconds, and across top of knees. shoulder cramp after 30 seconds. Time able to 121 seconds. No effort required, trial 165 seconds. No effort required, trial 40 seconds. Less effort required, trial be terminated after 110 terminated after 150 terminated after 120 seconds. maintained in seconds as the subject seconds as the subject equipment reported no effect from reported no effect from securing the strap. securing the strap. Security in Lifted arms, no No slippage with and Lifted arms, no No slippage with and Lifted arms, slipped out No slippage with and without equipment slippage. Chest strap without chest strap slippage. Chest strap without chest strap easily. Chest strap lost chest strap secured. Wriggling (wearing lost tension as soon as secured. Wriggling had lost tension as soon as secured. Wriggling had tension as soon as had no effect. Had to bring arms person lifted. no effect. Physically had person lifted. no effect. Physically had person lifted. inside rescue strop to promote to bring arms inside to bring arms inside slippage, and then slipped very rescue strop to promote rescue strop to promote quickly. slippage. slippage. Security in Lifted arms, easier to Not tested. Lifted arms, slipped out Not tested. Lifted arms, slipped out No slippage with and without equipment slip out. in less than 7 seconds. very easily. chest strap secured. Wriggling (wearing had no effect. Had to bring arms synthetic inside rescue strop to promote jumper) slippage, and then slipped very quickly.
Table 1: Rescue strop summary 65 kg subject 80 kg subject 140 kg subject With hypothermic strap Strop With hypothermic strap Strop With hypothermic strap Ability to hold arms down Achieved with difficulty. Easier. Achieved with difficulty. Easier. Struggled to keep arms down. A lot of pressure the arms and around the chest area. Started getting ‘tingling’ in finger tips after 1 minute 30 seconds but able to keep hands clasped. Breathing Breathing was affected making it hard to keep arms down. Much easier, only a little restricted. Unrestricted. Unrestricted. Breathing was laboured and developed ‘shakes’. Breathing easier but became laboured towards end of trial. Comfort Fingers were ‘tingling’. Significantly reduced pressure the armpits. 90 seconds arms started ‘tingling’. Pressure across back of knees. Incredibly uncomfortable after 15 seconds, and shoulder cramp after 30 seconds. Significantly more comfortable, some pressure the legs and across top of knees. Time able to be maintained in equipment 121 seconds. No effort required, trial terminated after 110 seconds as the subject reported no effect from securing the strap. 165 seconds. No effort required, trial terminated after 150 seconds as the subject reported no effect from securing the strap. 40 seconds. Less effort required, trial terminated after 120 seconds. Security in equipment (wearing Lifted arms, no slippage. Chest strap lost tension as soon as person lifted. No slippage with and without chest strap secured. Wriggling had no effect. Physically had to bring arms inside rescue strop to promote slippage. Lifted arms, no slippage. Chest strap lost tension as soon as person lifted. No slippage with and without chest strap secured. Wriggling had no effect. Physically had to bring arms inside rescue strop to promote slippage. Lifted arms, slipped out easily. Chest strap lost tension as soon as person lifted. No slippage with and without chest strap secured. Wriggling had no effect. Had to bring arms inside rescue strop to promote slippage, and then slipped very quickly. Security in equipment (wearing synthetic jumper) Lifted arms, easier to slip out. Not tested. Lifted arms, slipped out in less than 7 seconds. Not tested. Lifted arms, slipped out very easily. No slippage with and without chest strap secured. Wriggling had no effect. Had to bring arms inside rescue strop to promote slippage, and then slipped very quickly.
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