Table 2.

Analysis of preoperatory exercise training interventions.

Reference, Year	Type of Exercise	Duration	Frequency	Intensity	Total Score
Benzo et al., 2011 [22]	Yes	Yes	Yes	No	3/4
Huang et al., 2017 [18]	Yes	Yes	Yes	No	3/4
Karenovics et al., 2017 [23]	Yes	Yes	Yes	Yes	4/4
Lai et al., 2016 [19]	Yes	Yes	Yes	No	3/4
Lai, Huang, et al., 2017 [20]	Yes	Yes	Yes	No	3/4
Lai, Su, et al., 2017 [21]	Yes	Yes	Yes	No	3/4
Licker et al., 2017 [24]	Yes	Yes	Yes	Yes	4/4
Morano et al., 2014 [25]	Yes	No	Yes	Yes	3/4
Sebio García et al., 2017 [27]	Yes	Yes	Yes	Yes	4/4
Stefanelli et al., 2013 [26]	Yes	Yes	Yes	Yes	4/4