Table 10 Comparison of time-gap models described within the breaststroke biomechanics literature
Time period | Seifert and Chollet model [18] | Oxford et al. model [14] | Takagi et al. model [2] |
|---|---|---|---|
Time between the end of leg propulsion and beginning of arm propulsion | T1a | CP1 | Simultaneous propulsion time |
Time between the end of leg insweep and beginning of arm propulsion | T1b | – | – |
Time between the beginning of arm recovery and the beginning of leg recovery | T2 | – | – |
Time between the end of arm recovery and the end of leg recovery | T3 | – | – |
Time between 90° arm flexion during recovery and 90° leg flexion during recovery | T4 | – | – |
Time between the beginning of leg propulsion and the beginning of arm propulsion | – | Arm lag time | Per cent arm lag time |
Time between the end of arm propulsion and the beginning of leg propulsion | – | CP2 | Simultaneous recovery time |
Expression of coordination phases | % of total leg stroke time | % of total stroke time | % of total stroke time |