{"doi":"10.1093/ptj/pzaf140","title":"Effectiveness of a Physical Therapist-Administered Physical Activity Intervention After Total Knee Replacement: A Randomized Trial","abstract":"IMPORTANCE: While total knee replacement (TKR) is the definitive treatment for knee osteoarthritis, physical activity remains unchanged after surgery. OBJECTIVE: The objective of this trial was to examine the efficacy of a physical therapist-administered physical activity intervention to increase moderate-to-vigorous physical activity (MVPA) over 6 months for adults after TKR. DESIGN: This was a randomized controlled trial. SETTING: The study took place in an outpatient physical therapist clinic. PARTICIPANTS: Included were 120 adults over the age of 45 years seeking outpatient physical therapy following a unilateral TKR. INTERVENTIONS: Participants received standardized physical therapy after TKR and a wearable activity tracking device, individualized step goals, and face-to-face feedback provided by a physical therapist (intervention), or standardized physical therapy alone (control). MAIN OUTCOME AND MEASURE: The primary outcome was change in MVPA recorded by a hip-worn Actigraph GT3X accelerometer from baseline to 6 months after discharge from physical therapy. RESULTS: Moderate-to-vigorous physical activity similarly increased from baseline to 6 months within the intervention (median = 6.0 minutes per day [semi-interquartile range = 11.9]) and control group (median = 5.9 minutes per day [semi-interquartile range = 14.3]). There was no between-group difference in MVPA change over time. CONCLUSION: A physical therapist-administered physical activity intervention resulted in a similar increase in MVPA over 6 months compared to standardized physical therapy for adults after TKR. RELEVANCE: Adding a wearable activity tracking device and individualized step goals may not increase physical activity for adults after TKR receiving outpatient physical therapy.","journal":"Physical Therapy","year":2025,"id":584321,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9548,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":489023,"name":"Jason T. Jakiela","orcid":"0000-0001-7397-7603","position":1,"is_corresponding":false},{"id":1420597,"name":"Sydney Liles","orcid":null,"position":2,"is_corresponding":false},{"id":459655,"name":"Hiral Master","orcid":"0000-0003-0019-3087","position":3,"is_corresponding":false},{"id":489021,"name":"Dana Voinier","orcid":"0000-0001-5141-5212","position":4,"is_corresponding":false},{"id":1148610,"name":"Meredith Brunette","orcid":null,"position":5,"is_corresponding":false},{"id":1420087,"name":"Jennifer Copson","orcid":"0009-0000-1196-4305","position":6,"is_corresponding":false},{"id":1497583,"name":"Tom Bye","orcid":null,"position":7,"is_corresponding":false},{"id":1497157,"name":"Laura Schmitt","orcid":"0000-0003-0020-9800","position":8,"is_corresponding":false},{"id":329368,"name":"Louise M. Thoma","orcid":"0000-0002-3077-0423","position":9,"is_corresponding":false},{"id":404243,"name":"Daniel K. White","orcid":"0000-0003-3792-4621","position":0,"is_corresponding":true}],"reference_count":34,"raw_metadata":null,"created_at":"2026-07-19T02:59:11.978098Z","pmid":"41347910","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}