watch your lower back!
Intervals, don't do too much repititions. 20 would be reasonable, then change postions. You always can come back to situps again.
watch your lower back!
Intervals, don't do too much repititions. 20 would be reasonable, then change postions. You always can come back to situps again.
• 谢谢!非常reasonable! -夏了了- ♀ (0 bytes) () 12/15/2017 postreply 09:53:24