%0 Journal Article %T The potential of leg %A Atsuto Yoshino %A Hideharu Hayashi %A Hideki Katoh %A Hironao Hozumi %A Hiroshi Satoh %A Masao Saotome %A Misaki Okada %A Takeji Saitoh %A Toshiaki Mochizuki %A Toshiya Akai %A Tsuyoshi Urushida %A Yoshiaki Takahashi %J Hong Kong Journal of Emergency Medicine %@ 2309-5407 %D 2019 %R 10.1177/1024907918790068 %X Conventional hands-on chest compression, in cardiopulmonary resuscitation, is often inadequate, especially when the rescuers are weak or have a small physique. This study aimed to investigate the potential of leg-foot chest compression, with and without a footstool, during cardiopulmonary resuscitation. We prospectively enrolled 21 medical workers competent in basic life support. They performed cardiopulmonary resuscitation on a manikin for 2ˋmin using conventional hands-on compression (HO), leg-foot compression (LF), and leg-foot compression with a footstool (LFˋ+ˋFS). We analyzed the compression depths, changes in the rescuers* vital signs, and the modified Borg scale scores after the trials. The compression depth did not differ between the cases using HO and LF. In the case of LFˋ+ˋFS, compression depths ˋ5ˋcm were more frequently observed (median, inter-quartile range: 93%, 81%每100%) than in HO (9%, 0%每57%, pˋ<ˋ0.01) and LF (28%, 11%每47%, pˋ<ˋ0.01). The increase in the heart rate or modified Borg scale scores, after the trials, did not differ between the HO and LF group; however, the values were the lowest in the case of LFˋ+ˋFS (49ˋ㊣ˋ18 beats/min and 5 (4每7) in HO, 46ˋ㊣ˋ18 and 6 (5每7) in LF, and 32ˋ㊣ˋ11 and 2 (1每3) in LFˋ+ˋFS, respectively, pˋ<ˋ0.01). However, the increase in blood pressure, SpO2, and respiratory rate were not different among each group. The increases in the heart rate and modified Borg scale scores negatively were correlated with the rescuers* body size, in the case of HO and LF, but not LFˋ+ˋFS. LF can be used as an alternative to HO, when adequate HO is difficult. LFˋ+ˋFS could be used when rescuers are weak or have a small physique and when the victims are bigger than the rescuers %K Resuscitation %K cardiopulmonary resuscitation %U https://journals.sagepub.com/doi/full/10.1177/1024907918790068