title: Pilot study of methods to document quantity and variation of independent patient exercise and activity after total knee arthroplasty.
abstract: Variation in patients' independent exercise and activity after total knee arthroplasty (TKA) surgery may contribute to variable functional gains but have never been quantified. We pilot tested daily exercise logs and step activity monitors to quantify exercise and general home activity post-TKA. Patients successfully maintained logs and wore activity monitors. Logs documented significant variation in quantity of daily exercises. Women with poor emotional health recorded fewer repetitions and greater variation. More daily exercise repetitions correlated with larger 6-month functional improvement. Activity peaks on step monitors correlated with logged exercise sessions. However, most step activity was in addition to exercise sessions. Further research is needed to validate these findings and to clarify the relationship among post-TKA exercise, activity, and functional gain.
authors.affiliation: Department of Orthopedics and Physical Rehabilitation, University of Massachusetts Medical School, Worcester, Massachusetts, USA.
authors.forename: Patricia D
authors.initials: PD
authors.lastname: Franklin
authors.forename: Joseph
authors.initials: J
authors.lastname: McLaughlin
authors.forename: Catherine B
authors.initials: CB
authors.lastname: Boisvert
authors.forename: Wenjun
authors.initials: W
authors.lastname: Li
authors.forename: David C
authors.initials: DC
authors.lastname: Ayers
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000534:rehabilitation*; D004282:Documentation / Q000379:methods*; D005081:Exercise Therapy / Q000379:methods / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000379:methods*; D009043:Motor Activity; D010349:Patient Compliance; D010865:Pilot Projects; D020127:Recovery of Function; D012650:Self Disclosure; D016896:Treatment Outcome; D016138:Walking