Table 1.

Case reports showing extreme conditioning program-induced rhabdomyolysis.

Authors	Subject	Physical Status	Protocol of ECP
Pearcey et al. [7]	Man	Athlete who was acutely trained (approximately 3 months).	48 alternating sets (60 s duration) of push-up and pull-up variations. The subject performed the maximum number of repetitions possible of push-ups or pull-ups in each set. The total exercise duration was 48 min. The subject performed approximately 400 push-ups and approximately 200 pull-ups in 48 min.
Lozowska et al. [8]	Five of 6 patients were women	Three of the 6 patients were very physically fit before experiencing rhabdomyolysis, having participated in CrossFit for months to years. The remaining 3 patients were less fit and sustained rhabdomyolysis after their first encounter with CrossFit.	Non-informed.
Aynardi & Jones [9]	A 43-year old, African American female	She was healthy overall and had been active in multiple gym-related exercise programs over the past 10 years.	The ECP consisted of a standard warm-up followed by 3 sets of chin-ups that were performed until “failure” lasting approximately 20 min.
Hummel et al. [10]	A 15-year-old previously healthy male	Non-informed.	Intense CrossFit® workout.
Meyer et al. [11]	A previously healthy 31-year-old woman	She was exercising regularly 4 times per week, performing pushups, running, and other physical workouts.	The subject denied recent trauma or illness, but reported performing a variety of high intensity exercises such as pushups, plyometrics, and weightlifting at CrossFit.
Honda et al. [12]	A previously healthy 37-year-old man	He had exercised regularly but had never performed such intense training before.	Intense exercise training that included 100 pushups, 100 exercises using a 20-kg dumbbell, 50 lifts using a 10-kg weight.
Hadded et al. [13]	Man	He reports having had 5 previous days of exercise but did not involve CrossFit type training.	Non-informed.
Wagner et al. [14]	Woman	A healthy 21-year-old Caucasian female was participating in an organized, extreme exercise workout session conducted at a fitness center.	The exercise session consisting of performing a designated number of pushups in one minute. The protocol dictated 5 pushups in the first minute, 10 in the second, and adding 5 pushups each minute until participants can no longer continue. She recalls completing 6 rounds of increasing repetitions in each minute, thereby performing 105 pushups in 6 min.