The phrase "although pushing" is correct and usable in written English.
It can be used to introduce a contrasting idea or situation while referring to the act of pushing in some context.
Example: "Although pushing the limits can lead to innovation, it can also result in burnout."
Alternatives: "even though pushing" or "despite pushing".
But Hewitt, although pushed to five sets, as he had been by Blake last year, once again proved why he is the world's No1.
Although pushed into second place in the official chart, Somali piracy actioner Captain Phillips won the war over the actual weekend period, with £3.02m v £2.13m for Turbo.
According to recent reports this arsenal, although pushed north of the border by the expanded presence of international peacekeepers (Unifil 2), is estimated to be 40,000 strong with rumours that some rockets could hit Tel Aviv or even Israel's undeclared nuclear weapon facilities in the south.
Although pushed out of power by the Democrats, their passion for projecting U.S. power essentially preordained the invasions of Afghanistan and Iraq.
Although many pushing for same-sex marriage in Asbury Park are gay, those who processed and formalized the first same-sex marriage in New Jersey said they were motivated mainly by a sense of equality.
-- although $34 was pushing the upper limit on what was, when you got down to it, a glorified bar menu.
(That said, although Intel is pushing its new "Medfield" chip to Android OEMs. Medfield is an x86 design and therefore CISC-based. Whether it gets anywhere will be another story).
Although Pioneer is pushing hard, Sony and other members of the DVD-RW family are expected to miss this year's pre-Christmas rush for DVD recorders in America.
Although regulators are pushing for higher capital ratios, this can be achieved either by increasing the amount of equity in a bank or by cutting its lending.
