Table 3. Physiological and clinical response on identical intensity trails from three public spaces (boulevard, beach and park) in healthy subjects.

Low intensity trail	Boulevard	Beach	Park	p-value
Peak HR (beats/min), m (SD)	110 (13)	107 (9)	108 (8)	0.74
Walking speed (m/s), m (SD)	1.5 (0.2)	1.7 (0.2)	1.6 (0.2)	0.03
Final dyspnea (Borg score), median (p25-p75)	0 (0–1)	0 (0–0)	0 (0–0)	0.40
Final leg fatigue (Borg score), median (p25-p75)	0 (0–2)	1 (0–2)	1 (0–2)	0.75
Moderate intensity trail	Boulevard	Beach	Park	p-value
Peak HR (beats/min), m (SD)	120 (9)	114 (10)	116 (10)	0.40
Walking speed (m/s), m (SD)	1.5 (0.1)	1.7 (0.2)	1.5 (0.1)	0.02
Final dyspnea (Borg score), median (p25-p75)	0 (0–1)	0 (0–0)	0 (0–0)	0.36
Final leg fatigue (Borg score), median (p25-p75)	1 (0–1)	1 (1–2)	1 (1–2)	0.57
High intensity trail	Boulevard	Beach	Park	p-value
Peak HR (beats/min), m (SD)	119 (12)	118 (10)	130 (15)	0.07
Walking speed (m/s), m (SD)	1.5 (0.1)	1.6 (0.2)	1.6 (0.2)	0.08
Final dyspnea (Borg score), median (p25-p75)	0 (0–1)	0 (0–1)	0 (0–1)	0.91
Final leg fatigue (Borg score), median (p25-p75)	1 (1–2)	2 (1–2)	2 (1–3)	0.71

HR: heart rate.