San Diego Sports Doctor Explains VO2 max and Heart Rate Zon
5:52
Added: 2 years ago
From: valise757
Views: 2,684
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  • What a shame there isn't any sound half way through, was interesting up to then.

    Skyrad01 11 months ago

  • volume cuts out around 2:30

    neodem28 1 year ago

  • sicckkk.

    TheYellowHalo 1 year ago

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