Table 2.

Study characteristics

Study identifiers		Participants characteristics				Functional outcome	Comparator
Author	Ref	#	Average age (years)	Training status	Health status		Intervention comparison	Session (min)	Intensity
Adamson et al.	[62]	17	66	Untrained	Controlled Hypertension	TUG	SIT v Con	NA	NA
Adamson et al.	[54]	12	64.5	ND	ND	TUG, STS	SIT v Con	NA	NA
Ballesta-Garcia et al.	[46]	54	67.8	Untrained	Mixed w/No Contraindications	TUG, 6MWT, STS	HIIT v MICT (iso-time) v Con	60	9–14
Bellumori et al.	[41]	26	70	Untrained	Mixed w/No Contraindications	TUG	HIIT v Con	NA	NA
Bouaziz et al.	[61]	60	73.6	Sedentary	Mixed w/No Contraindications	TUG, 6MWT	HIIT v Con	NA	NA
Boukabous et al.	[52]	18	64.9	Untrained	Obesity	TUG, 6MWT, STS	0.5 time/calorie HIIT vs MICT	50	55% HRR
Coetsee and Terblanche	[47]	67	62.7	Untrained	Healthy	TUG	HIIT v MICT (iso-caloric) v RT v Con	47	70–75% HRmax
Enette et al.	[40]	52	77.9	Untrained	Alzheimer's	6MWT	HIIT v MICT (iso-time) v Con	30	70% HRmax
Gloeckl et al.	[57]	60	53	Untrained	COPD	6MWT	HIIT vs MICT Iso-caloric/Iso-work	10–30	60% PWR
Ikenaga et al.	[50]	81	70.8	Untrained	ND	STS	HIIT v Con	NA	NA
Jaureguizar et al.	[55]	72	58	Untrained	CAD	6MWT	HIIT vs MICT Iso-time	40	VT1—VT1 + 10%
Koufaki et al.	[56]	32	59.1	Untrained	CHF	STS	HIIT v MICT	40	40–60% VO2peak
Mador et al.	[49]	48	72	ND	COPD	6MWT	HIIT vs MICT Iso-work	20	50% Wmax
Nasis et al.	[58]	42	65.5	ND	COPD	6MWT	HIIT vs MICT Iso-work	30	60% Wpeak
Reichert et al.	[59]	36	67.9	Untrained	Mixed w/No Contraindications	TUG, 6MWT, STS	HIIT vs MICT Iso-time	30–36	Borg 13–17
Siqueira-Andrade et al.	[51]	41	64.3	Untrained	Mixed w/No Contraindications	TUG, 6MWT, STS	HIIT vs MICT Iso-time	36	Borg 16
Tavoian et al.	[48]	14	66.4	Untrained	Healthy	6MWT, STS	ca. 0.5 time HIIT v MICT v RT	30–45	50–75% HRR
Wolszakiewicz et al.	[53]	119	58	Untrained	CAD	6MWT	HIIT v Con	NA	NA
		47.3	65.7

Study identifiers		Interval protocol
Author	Ref	Exercise Modality	Duration (weeks)	Session (min)	Sessions/ week	Intervals/session	Interval Intensity	Interval (sec)	Recovery Intensity	Recovery (sec)	Time Interval (sec)
Adamson et al.	[62]	Cycle Ergometer	10	11.6	2	10	Max	6	0%	60	NA
Adamson et al.	[54]	Cycle Ergometer	6	ND	2	6–10	Max	6	ND	60	NA
Ballesta-Garcia et al.	[46]	Dance	18	60	2	6–12	Borg 14–18	60–90	Borg 7–11	120–180	NA
Bellumori et al.	[41]	Recumbent Cycle	6	30	2	30	Max	20	Min	40	NA
Bouaziz et al.	[61]	Cycle Ergometer	9.5	30	2	6	VT	240	40%VT	60	NA
Boukabous et al.	[52]	Treadmill walk	8	25	3	6	90% HRR	60	40% HRR	120	NA
Coetsee and Terblanche	[47]	Treadmill walk	16	30	3	4	90–95% HRmax	240	70% HRmax	180	NA
Enette et al.	[40]	Cycle Ergometer	9	30	2	6	80% HRmax	60	60% HRmax	240	NA
Gloeckl et al.	[57]	Cycle Ergometer	3	12–36	5–6		100% PWR	30	0%	30	NA
Ikenaga et al.	[50]	Run	12	189	ND	ND	ND	60	ND	60	NA
Jaureguizar et al.	[55]	Cycle Ergometer	8	40	3	15–30	50% max	20	10% max	40	NA
Koufaki et al.	[56]	Cycle Ergometer	24	30	3	20	100% PPO	30	20–30% PPO	60	NA
Mador et al.	[49]	Cycle Ergometer	8	21	3	7	150% MICT W	60	75% MICT W	120	NA
Nasis et al.	[58]	Cycle Ergometer	10	45	3	40	100% Wpeak prog	30	0%	30	NA
Reichert et al.	[59]	Water-based	28	30–36	2	6-Dec	Borg 15–18	120–240	11–15	30–60	NA
Siqueira-Andrade et al.	[51]	Water-based	12	36	2	18	Borg 18	60	Borg 11	60	NA
Tavoian et al.	[48]	Cycle Ergometer	12	15–30	3	ND	80–100% HRR	15–60	40–60% HRR	15–60	NA
Wolszakiewicz et al.	[53]	Walk	12	36	5–7	6	ND	360	0%	180	NA
			11.75

6MWT  six minute walk test, CAD  coronary artery disease, CHF  chronic heart failure, Con  control, COPD  chronic obstructive pulmonary disease, ND not disclosed, HR_max  heart rate maximum, HRR  heart rate reserve, MICT  moderate-intensity continuous training, PWR = peak work rate, RT = resistance training, SIT = sprint interval training, STS  sit to stand, TUG  timed up and go, V̇O_2peak  peak rate of oxygen consumption, VT1  ventilatory threshold 1, W_max  maximum power, W_peak  peak power