Table 1.

Pre-HIIT Outcomes

Outcome	Instrument	Diagnosis	Baseline	Post-intervention	Post-Operatively
		Dx	T0	T1
Primary outcome
Cardiorespiratory fitness	Cardiopulmonary Exercise Test (CPET)	X	X	X
Secondary outcomes
Pulmonary and Physical Performance
Functional performance	Short Physical Performance Battery (SPPB)	X	X	X
Muscle Strength	Leg Press 1-RM	X	X	X
Physical activity	International Physical Activity Questionnaire	X	X	X
Pulmonary Function	CPET	X	X	X
Maximum Inspiratory Pressure	PowerBreathe K-series	X	X	X
Nutritional Status	Dietary interview	X	X	X
Quality of Life	EORTC-QLQ-C30	X	X	X	X
Cancer specific quality of Life	EORTC-QLQ-OG25 (oesophago-gastric cancer)	X	X	X	X
	EORTC-QLQ-LC 13 (lung cancer)	X	X	X	X
Qualitative approach	Semi –structured interviews (focus groups or 1:1)			X
Cost analyses	EQ5D				X
	Service Use Inventory				X
Post-operative morbidity
Post-operative outcomes	Self-reported Functional Recovery				X
	Post-Operative Morbidity Score				X
	Clavien Dindo Score				X
	Comprehensive Complications Index				X
Other
Adherence	Record in case report form/ exercise diary			X
Sociodemographic details	Participant self-report		X
Body composition	Anthropometry		X	X
Cancer/Surgery history	Medical records		X
Adverse events	Reports of patients/ research personnel			X