Learn yoko-shiho-gatame, the judo side four-quarter hold: head, hip and weight control, rules and milestones. For beginners, with a partner under supervision.
The honest answer: you do not hold yoko-shiho-gatame with arm strength but with clear geometry: across Uke, chest on chest, head and hip under control. In competition the hold counts 20 seconds for ippon, 10 to 19 seconds for waza-ari and 5 to 9 seconds for yuko [1]. The German Judo Federation lists yoko-shiho-gatame together with kesa-gatame, kami-shiho-gatame and tate-shiho-gatame among the four holds for 7th kyu [2].
The name means roughly "side four-direction hold": you keep Uke under control from the side so that he cannot slip away in any direction. Expect several weeks until the position feels natural, and much longer until you hold it against active escape attempts. That is a practical rule of thumb, not a study.
Important for understanding the rules: in competition the referee calls "osaekomi" only if Uke is controlled from the side, from behind or from above and touches the mat with his whole upper back. The holder must also not be trapped by Uke's legs [1]. So whoever holds well watches three things at once: position, Uke's back contact and his own free legs.
Uke lies on his back. You kneel across him, your chest on his chest, legs spread wide. Milestone: you stay stable even when Uke works slightly against you.
One arm goes around Uke's head, the collar stays firmly in your grip. You hold, you do not choke. In competition a hold is valid only if the holder lies with the upper body on and over Uke and is not controlled by Uke's legs [1]. Milestone: Uke cannot turn his head free.
With the other hand you grip Uke's hip side, for example belt or trousers. That takes away his room to turn or push away sideways. Milestone: you feel every hip movement of Uke before it becomes effective.
Your weight lies over Uke's breastbone. If Uke resists, your body follows instead of blocking rigidly. From 7th kyu the DJB requires tori to react flexibly to escape attempts and not hold rigidly [2]. Milestone: you hold 20 seconds against light resistance.
If Uke slips away, you switch to a neighbouring hold, such as kami-shiho-gatame or kesa-gatame. The DJB already asks at 7th kyu for two hold changes in reaction to escape attempts [2]. Milestone: you switch cleanly twice without Uke getting free.
On the ground too: whoever taps is released immediately. In judo, injuries occur more often standing than on the ground [5], yet attention pays off here too. In practice, neck and shoulders suffer in holds when head or arm are held without control; that is practical experience, not a study. Never put pressure on throat or windpipe, practise only with a partner who knows the tap rule, on tatami and under supervision. This guide explains and motivates, it does not replace supervised training.
Groundwork takes up more room in adult judo than in youth: in a time analysis of bouts from different age groups, pure groundwork time was longest in those over 20 [4]. And groundwork scores often follow a failed standing attack: in a world championship analysis, 68.6% of groundwork scores followed a failed standing attack [3]. So make the transition a habit: the throw fails, the hold begins. The best hold begins before the throw has ended.
And change your point of view: let your partner hold you as uke and notice where you can move. That tells you more about a leak than any explanation. The German Judo Federation explicitly wants both roles to be learned [2].
"Yoko" means sideways, "shiho" four directions, "gatame" hold. The side four-quarter hold controls Uke across from the side. The German Judo Federation lists it among the holds for 7th kyu [2].
In kesa-gatame you lie diagonally to the side and control head and one arm. In yoko-shiho-gatame you lie across Uke and control head and hip side. Both are holds where you work with weight.
5 to 9 seconds give a yuko, 10 to 19 seconds a waza-ari, 20 seconds an ippon [1].
It belongs to the four holds for 7th kyu in the programme of the German Judo Federation [2].
Tai-otoshi: The Body Drop Where the Leg Blocks and the Head Stays Up