In the parada the leader's foot stops the follower's step without pressing. Learn it slowly, clearly led and safely, with typical mistakes and clear milestones.
The honest answer first: the parada (Spanish for "stop") is a figure in Argentine tango in which the leader's foot stops the follower's step. It is neither a kick nor a block: the leader's foot marks the point where the follower stops, and they stay there because the impulse ends. It is an interplay of body leading and foot contact.
The parada sounds riskier than it is once leading and contact are right. At the same time it is a figure where people quickly want too much. Anyone who treats the parada as a feat of strength gets pain in the foot. Anyone who treats it as a precise stop with soft contact gets an elegant moment the follower hardly feels.
That is why the parada is a building-block figure: you need the forward ocho because that is where the understanding for the follower's steps develops. The link between two people also shows physically: in a study with 54 participants (folk dancers, so only a hint), even a fingertip touch aligned the sway of two partners, and the more experienced dancer led the pair [1]. So you do not need a strong foot, you need a clear, quiet signal.
Realistic: you can show the stop without foot contact after a few practice evenings. A secure, clean parada with contact often takes a few weeks to months (rule of thumb, not a study result).
Dance the forward ocho four times calmly. The follower must know the rhythm so the stop is recognisable as a stop. Milestone: the ocho runs without pulling and without stalling.
Leaders stop the follower only with chest and body direction: they stop passing on the impulse. The foot stays quietly on the floor. This is the most important exercise because in it the couple learns that the stop comes from the lead, not the foot. Milestone: five stops in a row where the follower stops willingly and softly.
Now the leader places their own foot beside, not on, the follower's foot. The contact is a touch, not pressure. Both feel the position. A calm trunk helps: an ultrasound study with ten tango dancers found that the deep abdominal muscle (transversus abdominis) was progressively thicker in tango positions from open embrace to volcada, meaning it worked harder [2]. A stable trunk lets you place the foot precisely. Milestone: the follower says the contact feels comfortable.
After the stop, the follower leaves the parada. The leader frees the way by taking the foot back and realigning the torso. Milestone: the exit works without stumbling and without pulling the follower's foot back.
Increase the tempo only once the contact is always safe. A teacher sees whether the foot lands wrong or the follower dodges. Imitating it without supervision is risky at this point. Milestone: a teacher confirms that position and pressure are right.
Foot contact is where toes and ankles can get hurt. Practise the parada slowly, in sturdy shoes and with clear agreement between partners, and stop immediately if it hurts. In a survey of 218 Dutch competitive ballroom dancers (standard and Latin, so only a hint about dancing in general), about 81% reported at least one injury, most often in foot, ankle and lower leg [3]. Warm up ankles and feet. The parada is one of the figures you build up only with a teacher. This guide explains and motivates; it does not replace supervised training.
Practise the parada with a cushion or a folded mat between the feet. The contact then has to be soft, and you notice whether the stop comes from the lead. Only when that works does the real foot come in. After that you learn the barrida.
The parada is a figure in Argentine tango in which the leader's foot stops the follower's step. The foot marks the stopping point, the stop itself comes from body leading. It is neither a kick nor a block.
It can endanger toes and ankles if the contact is too hard or the position is wrong. With slow build-up, sturdy shoes, clear agreement and a teacher the risk is much smaller.
When you dance the forward ocho securely and master calm leading. Then a teacher can show you the parada. How long it takes is individual, often a few weeks to months (rule of thumb, not a study result).
Sturdy shoes with a solid toe cap make sense because they protect the foot. Open sandals are not suitable. The sole should be smooth but grippy.
Barrida in Argentine Tango: Gently Sweeping the Foot Across the Floor