If you don’t have at least one or two pieces of equipment — a chinup bar or a resistance band perhaps — some muscles don’t get worked out as much as others.
如果你连一两个器械都没有，比如引体向上的杆，或者拉伸器，这时候你的一些肌肉就不能与其他肌肉得到一样的锻炼。
Again you get custom quality with high production because motion study was taking in consideration - one operator with two pieces of equipment and no more ceiling gazing.
再次你定制生产质量高，因为动作研究正在考虑-一个运营商，两件设备，也没有更多的望着天花板。
If you add just one or two pieces of equipment: a dumbbell, a kettlebell, a jumprope, a medicineball, or a chinup bar, for example, you can increase thechallenge even more.
如果你只用一两个器械的话：一个哑铃，一个壶铃，一条跳绳，一个健身实心球，或者一条杆等，都可以作为选择。 % 你还可以对自己加大挑战。
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