Table 3.

Physiological responses during body weight resistance exercises with slow movement.^*

Variables	Rest	1 rep·min−1	2 reps·min−1	3 reps·min−1	4 reps·min−1	5 reps·min−1	6 reps·min−1
Heart rate (b·min−1)
Heel-raise	75.1 ± 11.6	76.5 ± 12.2	75.7 ± 10.9	76.1 ± 11.1	78.5 ± 9.8	78.2 ± 10.1	79.1 ± 10.6
Squat	76.3 ± 12.4	79.9 ± 13.6	83.1 ± 13.9	86.4 ± 13.6	89.7 ± 14.6	93.0 ± 15.0	97.3 ± 16.7
Push-up	64.0 ± 10.7	79.7 ± 11.2	87.5 ± 11.2	94.9 ± 10.5	101.1 ± 12.0	109.8 ± 18.1	120.1 ± 21.5
Metabolic equivalents (METs)
Heel-raise	—	1.3 ± 0.2	1.4 ± 0.2	1.5 ± 0.2	1.5 ± 0.2	1.7 ± 0.2	1.8 ± 0.2
Squat	—	1.6 ± 0.1	2.0 ± 0.2	2.4 ± 0.3	2.9 ± 0.3	3.1 ± 0.9	3.7 ± 0.5
Push-up	—	2.0 ± 0.2	2.7 ± 0.4	3.4 ± 0.4	4.0 ± 0.5	4.5 ± 0.7	4.7 ± 0.8
Respiratory quotient
Heel-raise	0.85 ± 0.05	0.83 ± 0.05	0.82 ± 0.05	0.82 ± 0.05	0.82 ± 0.05	0.82 ± 0.05	0.81 ± 0.05
Squat	0.84 ± 0.04	0.81 ± 0.03	0.80 ± 0.04	0.81 ± 0.05	0.82 ± 0.04	0.83 ± 0.05	0.83 ± 0.05
Push-up	0.88 ± 0.06	0.83 ± 0.06	0.84 ± 0.05	0.87 ± 0.05	0.90 ± 0.05	0.90 ± 0.05	0.91 ± 0.03
rate of perceived exertion
Heel-raise	—	7 ± 1	7 ± 1	8 ± 2	8 ± 2	9 ± 2	10 ± 2
Squat	—	7 ± 1	8 ± 2	9 ± 2	10 ± 2	11 ± 2	12 ± 2
Push-up	—	8 ± 1	9 ± 2	11 ± 1	13 ± 1	14 ± 1	15 ± 2

^*V̇o₂ of 3.5 ml·kg⁻¹·min⁻¹ was designated as 1 MET.