Murrock 2002.

Study characteristics
Methods	RCT 2‐arm parallel group design
Participants	Adults enrolled in cardiac rehab Phase II program after having undergone their 1st CABG Total N randomized: 33 N randomized to music group: unclear N randomized to control group: unclear N analyzed in music group: 15 N analyzed in control group:15 Mean age: 70.43 years Sex: 13 (43%) women, 17 (57%) men Ethnicity: not reported Setting: rehab setting Country: USA
Interventions	Two study groups: 1. Music group: listening to researcher‐selected music during exercise session 2. Control group: standard care Music provided: Hooked on Classics by Louis Clark and the Royal Philharmonic Orchestra (upbeat tempo of 128 to 160 bpm) Number of sessions: 10 sessions Length of session: 40 min Categorized as music medicine
Outcomes	Mood (Rejeski's Feeling scale; +5 to ‐5): posttest (during 10th session) Rate of perceived exertion (Borg scale; 12‐point scale): posttest (during 10th session)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Drawing of lots (personal communication with author)
Allocation concealment (selection bias)	Low risk	Drawing of lots prevented knowledge of randomization sequence (personal communication with author)
Blinding of participants and personnel (performance bias) All outcomes	High risk	Blinding of participants was not possible. Personnel were blinded
Blinding of outcome assessment (detection bias) Subjective outcomes	High risk	Self report was used for subjective measures
Blinding of outcome assessment (detection bias) Objective outcomes	Low risk	No objective outcomes included in this study
Incomplete outcome data (attrition bias) All outcomes	Low risk	Attrition: n = 3 (9%). No reason for participant loss is given
Selective reporting (reporting bias)	Unclear risk	Not sufficient information available to make judgment
Other bias	Unclear risk	Unfunded research study