Physical activity and quality of life after radical prostatectomy.
BACKGROUND
There are significant post-surgical reductions in health-related quality of life (HRQOL) in prostate cancer (PCa) patients undergoing radical prostatectomy (RP). Physical activity (PA) interventions have improved treatment outcomes for PCa patients undergoing radiation and hormone therapy, but PA effects have not previously been examined in the RP setting. This study examined the relationship between preoperative PA levels and postoperative HRQOL outcomes in PCa patients treated with RP.


METHODS
Sixty patients were interviewed regarding lifetime PA and completed preoperative (2 weeks prior to surgery) and postoperative (4 weeks after surgery) HRQOL questionnaires. Aerobic fitness testing was conducted on a subsample of 22 patients.


RESULTS
Higher levels of total past-year PA and occupational PA significantly correlated with lesser HRQOL declines from presurgery to 4 weeks post-surgery (Beta = -0.364, p = 0.037 and Beta = -0.243, p = 0.089, respectively) in models adjusted for age, postoperative questionnaire completion date, Gleason score and education. Past-year occupational PA was highly positively correlated with past-year total PA (r = 0.785, p < 0.001). Lifetime total PA was correlated with estimated VO(2) max (r = 0.486, p = 0.026) in the 22 patients who were aerobically tested. Lifetime and past-year PA volumes were not correlated with waist circumference or body mass index.


CONCLUSIONS
Declines in HRQOL after RP may be reduced in patients with higher preoperative levels of self-reported PA. These findings require further study with larger samples to confirm results. If confirmed, findings suggest exercise preoperatively may improve HRQOL outcomes after RP.
Santa Mina
Daniel
D
Department of Surgical Oncology, Princess Margaret Hospital, Toronto, ON;
Matthew
Andrew G
AG
Trachtenberg
John
J
Tomlinson
George
G
Guglietti
Crissa L
CL
Alibhai
Shabbir M H
SM
Ritvo
Paul
P