Physical activity did not change at 6 months , and a small to moderate improvement was found at 12 months postsurgery , despite large improvements in quality of life , pain , and physical function .
Reasons for the lack of increased PA are unknown but may be behavioral in nature , as a sedentary lifestyle is difficult to change .
OBJECTIVE Little is known about the extent to which  physical activity ( PA )  levels change following total knee or hip joint replacement relative to pain , physical function , and quality of life .
Our objective was to conduct a systematic review and meta- analysis on changes in PA relative to pain , quality of life , and physical function  after total knee or hip joint replacement .
Total hip arthroplasty in patients 50 years or less: do we improve activity profiles?
The primary objective of this study was to use step activity monitoring to quantify activity changes after total hip arthroplasty in patients 50 years or less . Secondly , we investigated whether step activity measurements correlated with the Harris hip and UCLA scores . We prospect ively analyzed 37 patients ( age ≤ 50 ) treated with primary THA .  Patient activity was recorded with a step activity monitor .  Harris hip and UCLA scores were analyzed . Total daily stride counts increased by an average of 30.0 % . Increases were noted in the percent of daily time spent at high , moderate and low activity . Increases in daily time spent at high activity moderately correlated with the UCLA activity score but did not correlate with the HHS . Both the UCLA score and the HHS did not correlate with mean daily strides . Following THA , patients ≤ 50 years of age increase their activity by taking more daily strides and improve their activity profile by spending more time at higher activity . Improvements in step activity moderately correlate with improvements in UCLA scores
Physical activity did not change at 6 months , and a small to moderate improvement was found at 12 months postsurgery , despite large improvements in quality of life , pain , and physical function .
Reasons for the lack of increased PA are unknown but may be behavioral in nature , as a sedentary lifestyle is difficult to change .
OBJECTIVE Little is known about the extent to which  physical activity ( PA )  levels change following total knee or hip joint replacement relative to pain , physical function , and quality of life .
Our objective was to conduct a systematic review and meta- analysis on changes in PA relative to pain , quality of life , and physical function  after total knee or hip joint replacement .