Nothing wrong with using such distances every now and then to ‘open up’ the stride or avoid a ‘plateau’. It also depends on the outdoor season and the time available then for the important races. Just keep it sub-maximum.
Nothing wrong with using such distances every now and then to ‘open up’ the stride or avoid a ‘plateau’. It also depends on the outdoor season and the time available then for the important races. Just keep it sub-maximum.