{"ThemeCode":null,"Count":1,"Pagination":{"ID":"default","ItemCount":1,"PageCount":1,"PageSize":20,"SelectedPage":0},"ForumInfo":{"Breadcrumbs":[{"Name":"Training Advice","URL":"https://www.southlondonharriers.org/Cms/Spaces/TRAINING/Training+Advice"}],"ID":112,"SpaceID":18,"Name":"Training Advice","Path":"Training Advice","Description":"Articles by Ray Thompson, one of SLH’s most experienced coaches, and external resources to assist your training.","Icon":null,"PreventTopics":false,"Creator":{"ID":164,"Name":"Ray Thompson","CompanyName":null,"HasEmail":true},"CreationTime":"05/07/2019 16:49","TopicCount":0,"Tags":[],"URL":"https://www.southlondonharriers.org/Cms/Spaces/TRAINING/Training+Advice","LastComment":{"ID":0,"Index":0,"User":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"ImageUrl":null,"Comment":null,"CreationTime":null,"IsEdited":false,"EditTime":null,"InReplyTo":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"IsDeleted":false,"DeleteReason":null,"DeletedBy":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"LikeCount":0,"LikesDescription":"","Likes":[],"LikedByMe":false,"HasBeenRead":false,"Replies":[],"CanEdit":false,"CanModerate":false,"CanReply":false,"CanMessageMe":false},"IsWatching":false,"CanWatch":false},"TopicInfo":{"ID":113,"ForumPageID":112,"Name":"The Story of Lactic Acid","Creator":{"ID":164,"Name":"Ray Thompson","CompanyName":null,"HasEmail":true},"CreationTime":"05/07/2019 16:50","CommentCount":1,"Tags":[],"IsPinned":false,"IsLocked":true,"URL":"https://www.southlondonharriers.org/Cms/Spaces/TRAINING/Training+Advice/The+Story+of+Lactic+Acid","HasUnreadComments":true,"FirstUnreadCommentIndex":0,"LastComment":{"ID":0,"Index":0,"User":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"ImageUrl":null,"Comment":null,"CreationTime":null,"IsEdited":false,"EditTime":null,"InReplyTo":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"IsDeleted":false,"DeleteReason":null,"DeletedBy":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"LikeCount":0,"LikesDescription":"","Likes":[],"LikedByMe":false,"HasBeenRead":false,"Replies":[],"CanEdit":false,"CanModerate":false,"CanReply":false,"CanMessageMe":false},"IsWatching":false,"CanWatch":false,"CanAdmin":false},"Comments":[{"ID":41,"Index":0,"User":{"ID":164,"Name":"Ray Thompson","CompanyName":null,"HasEmail":true},"ImageUrl":null,"Comment":"\u003cp\u003eLactic acid was first discovered in 1780 in sour milk. Now known as the PH of body fluid.\u003c/p\u003e\n\u003cp\u003ePYRUVIC acid, a product of GLYCOLYSIS – a metabolic pathway – is converted into lactate when oxygen is not supplied fast enough to meet the need of muscle cells. With intense exercise the muscle cells demand for energy, ATP, is too immediate to wait for oxygen from the ventilatory system. This results in an accumulation of lactate in the muscles and blood.\u003c/p\u003e\n\u003cp\u003eThe discovery in 1920 that lactic acid is produced during fatiguing muscle contractions has been seen as a factor in the exhaustion that accompanies heavy physical exertion.\u003c/p\u003e\n\u003cp\u003eWhen anaerobic glycolysis is called up as the predominant pathway, in addition to lactate, and more important in the acid base balance are hydrogen ions – a major threat. This combination DECREASES muscle PH (acid balance) results in metabolic acidosis and intimately intense fatigue.\u003c/p\u003e\n\u003cp\u003eWhile lactate, hydrogen and other metabolites contribute, lactate is used by physiologists and coaches to determine the effects of training regimes. This use of lactate is unfairly labelled as the main culprit in creating intense fatigue.\u003c/p\u003e\n\u003cp\u003eLactate is often blamed for what is called ‘muscle burn’ when the real cause isthe increase in muscle temperature that results from heavy physical exertion. Also, muscle soreness is put down to excess lactic acid. Muscle and blood lactic pooling goes after 30/60 mins while soreness often takes 12/24 hours to appear and five to seven days to completely go away. This soreness results from microscopic tears in muscle fibre and is a delayed biochemical injury.\u003c/p\u003e\n\u003cp\u003eRather that lactates being a waste product it does in effect provide fuel for the heart and allows the liver to make new glucose that converts to glycogen that fuels muscle action so that exercise can continue.\u003c/p\u003e\n\u003cp\u003eLactate at modest exercise disperses gradually but with increasing effort that calls up anaerobic glycolysis, lactate removal lags and accumulates in muscle and blood.\u003c/p\u003e\n\u003cp\u003eThis over accumulation of lactate is a physiological marker and is called the lactate or acidosis threshold. With endurance training comes body adaption to lactate accumulation and removal. (Bucket analogy)\u003c/p\u003e","CreationTime":"Friday, 5 July 2019 16:50","IsEdited":false,"EditTime":null,"InReplyTo":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"IsDeleted":false,"DeleteReason":null,"DeletedBy":{"ID":null,"Name":null,"CompanyName":null,"HasEmail":false},"LikeCount":0,"LikesDescription":"","Likes":[],"LikedByMe":false,"HasBeenRead":false,"Replies":[],"CanEdit":false,"CanModerate":false,"CanReply":false,"CanMessageMe":false}],"CanPostReplies":false,"CanModerate":false,"CanEdit":false,"CanAdmin":false,"FindReplyID":null}