1RM	One-Repetition Maximum
5xSTS	Five Times Sit-to-Stand Test
ACR	American College of Rheumatology
AE	Aquatic Exercise
BA	Blinding of Assessors
BMI	Body Mass Index
BS	Blinding of Subjects
BT	Blinding of Therapists
CA	Concealed Allocation
CG	Control Group
CI	Confidence Interval
ECS	Eligibility Criteria Specified
GSB	Groups Similar at Baseline
HRmax	Maximum Heart Rate
ITA	Intention-to-Treat Analysis
KL	Kellgren–Lawrence Radiographic Disease Severity Scale
KOOS	Knee Injury and Osteoarthritis Outcome Score
LBE	Land-Based Exercise
MCID	Minimal Clinically Important Difference
MeSH	Medical Subject Headings
OA	Osteoarthritis
OD	Outcome Data from >85% of Participants
PEDro	Physiotherapy Evidence Database
PEVM	Point Estimates and Variability Measures
PICO(S)	Population, Intervention, Comparison, Outcomes (and Study Design)
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
RA	Random Allocation
RBC	Reported Between-group Comparisons
RCT	Randomised Controlled Trial
RPM	Revolutions Per Minute
SD	Standard Deviation
SE	Standard Error
SF-12	12-item Short Form Health Survey
SF-36	36-item Short Form Health Survey
TRX	Total Resistance Exercise
VAS	Visual Analogue Scale
WHOQOL-BREF	World Health Organization Quality of Life-BREF
WOMAC	Western Ontario and McMaster Universities Osteoarthritis Index
YLD	Years Lived with Disability