In the Momentum slope Analysis of an established downtrend, Compare the slope of the last two dynamic resistance lines.

No change in slope means the strength of the trend is constant. Again Compare the slope of the last two dynamic resistance lines.

In the Momentum Range Analysis of an established uptrend, Compare the last two Upward Range Lines.
No change in Range means the strength of the trend is constant.
Again Compare the last two Upward Range Lines.

When you update the dynamic channel in a downtrend pattern and see the price breaks the dynamic support line, you often see that the new pattern has lower Swing Lows and lower Swing Highs, Which indicates the continuation of the downtrend pattern.

If the price breaks the dynamic support of the current sideways pattern, look for the new Swing lows and update the dynamic channel.
The new pattern could show the same Swing highs, but a lower swing low. Which is still another Sideways pattern.

When Dynamic support and Resistance move in the same direction, we categorize them under Trend patterns.