. 2021 Jun 16;20:e20200248. doi: 10.1590/1677-5449.200248

Table 5. Description of the exercise protocols used in the studies selected.

Study	Exercises protocol
Padberg et al.¹⁴	Stretching and strength exercises for the trunk and lower limbs (primarily the triceps surae muscles) performed actively against gravity and weight resistance; walking on a treadmill.
Padberg et al.¹⁴	- One hour of exercises. Series and repetitions were increased progressively.
Szewczyk et al.¹⁵	Circular ankle movements; heel raises in standing position; dorsal flexion; plantar flexion. Exercise bicycle (twice a week) at moderate intensity for 20 min. and 3 km walking daily.
Szewczyk et al.¹⁵	- 3 times per day, in series of 15 repetitions each.
Ramos-González et al.¹³	Flexion and extension of the metacarpophalangeal and interphalangeal joints, with participant sitting; flexion and extension of the ankle, with participant in standing position; isometric contraction of the quadriceps muscles with the knees extended and participant sitting; diaphragmatic respiration.
Ramos-González et al.¹³	- Twice a day, every day.
O’Brien et al.¹⁶	Heel raises, in sitting position, both lower limbs; heel raises, in standing position, both lower limbs; heel raises, one limb at a time, in standing position; stretches (for 20 seconds) of the triceps surae and hamstring muscles of both lower limbs, before and after exercises.
O’Brien et al.¹⁶	- 3 times per day, every day. Series and repetitions were increased progressively.

min.: minutes; km: kilometers.