different between warmup vs warmups

warmup

warmup From the web:

• what warmup to do before running
• warm up means
• warm up exercises
• warm up before squats
• what do warm ups do
• warm up sets
• what does a warm up do
• what is warmup learning rate

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warmups

warmups From the web:

• what warm ups
• what do warm ups do
• what does warm ups do
• what do warm ups mean
• dynamic warm ups
• what are some warm ups
• good warm ups
• acting warm ups