Table 1 Definitions of exercise adherence in post-operative TKA interventions

Akbaba et al. (2016) [18]

“The patients were excluded if they had not completed at least 75% of the exercise programme.”

Buhaglar et al. (2017) [19]

“Adherence for both groups was defined as attendance at no less than 2 and no more than 4 outpatient sessions. Adherence for the inpatient rehabilitation group was further defined as having had a minimum 7 days of inpatient rehabilitation.”

Christiansen et al. (2020) [45]

“We classified adherence as “achieved” for participants who had ≥80% of the weekly steps/day goal recorded by the physical therapist and “not achieved” for those with < 80% of the weekly steps/day goals recorded, which is consistent with the definition of adherence from a pharmacologic perspective.”

Debbi et al. (2019) [47]

“Satisfactory compliance was defined as an average of > 75% of walking protocol.”

Fransen et al. (2017) [58]

“Attended the full program of 16 classes.”

Harmer et al. (2009) [66]

“Attending 8 or more sessions.”

Johnson et al. (2010) [74]

“Subjects were required to complete at least 10 of 12 scheduled therapy sessions. Subjects were allowed to miss up to two sessions, but not in the same week, before being discharged from the study.”

Kelly et al. (2016) [78]

“Goal of 2 sessions per week.”

Kramer et al. (2003) [79]

“Compliance was defined as completion of the home exercises at least 90% of the time.”

Lenguerrand et al. (2019) [82]

“Adherence to the intervention was predefined as attendance at ≥4 sessions.”

Moffet et al. (2015) [98]

“Subjects who participated in all evaluations and attended at least 75% of the intervention sessions.”

Ko et al. (2013) [22]

“Intervention group attended > 9 sessions; the control attended 2 sessions.”

Paxton et al. (2018) [103]

“The adherence rate (in the physical activity feedback group) cutoff of greater than 90% was assessed as the ratio of the number of weeks that the Fitbit wearable sensor and tablet application were used over the total number of weeks. Use of the Fitbit sensor was assessed by noting daily wear time (≥ 12 h representing a valid day). Dose goal cutoff of 80% was assessed as the ratio of the total number of participants achieving their goals over the total number of participants, for each week of the intervention.”

Trudelle-Jackson et al. (2020) [123]

“Participants were considered 100% compliant if they exercised 3 to 4 times per week for 8 weeks (intervention group only). A minimum requirement of 50% compliance with the high-velocity exercise training program was necessary to remain in the study.”

Yousefian et al. (2017) [129]

“Patients not attending 100% of their therapeutic sessions were also excluded from the study.”