References
Interventions. (The lumbar lordotic angle (LLA) and sacrohorizontal angle (SHA).CONSORT (Consolidated Standards for Reporting of Trials) study flow.Effect size by exercise method. CE: crunch exercise, EO: external oblique, IO: internal oblique, LLA: lumbar lordotic angle, RA: rectus abdominis, SHA: sacrohorizontal angle, SPE: sprinter-pattern exercise.Electromyography attachment sites.General characteristics of participants.Values are presented as mean ± standard deviation. CE: crunch exercise, SPE: sprinter-pattern exercise.Changes in each variable depending on the exercise method.Values are presented as mean ± standard deviation. CE, crunch exercise; SPE, sprinter-pattern exercise. 