PMID- 31191966 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231011 IS - 2055-7647 (Print) IS - 2055-7647 (Electronic) IS - 2055-7647 (Linking) VI - 5 IP - 1 DP - 2019 TI - Effect of two tapering strategies on endurance-related physiological markers in athletes from selected training centres of Ethiopia. PG - e000509 LID - 10.1136/bmjsem-2019-000509 [doi] LID - e000509 AB - OBJECTIVE: We aimed to investigate the effects of two tapering strategies on specific endurance-related performance markers in some selected athletic training centres of Ethiopia. METHODOLOGY: Thirty-seven young distance runners (mean age: 20+/-1.97 years; mean training period: 2.43+/-0.603 years) were randomly assigned to high-intensity low-volume (HILV) and high-intensity moderate-volume (HIMV) taper groups. Training frequencies were five times per week conducted for 2 weeks in both groups. At baseline and after 2 weeks of the taper intervention, the average red blood cell (RBC) count, haemoglobin (Hgb) concentration and haematocrit percentages (Hct) of the participants were measured and analysed using a complete blood count (sysmix) instrument. RESULTS: Using a parallel-group design, we investigated the effects of the two tapering strategies (HILV and HIMV), and positive changes were observed in the endurance-related physiological traits of RBC count, Hgb concentration and Hct percentages regardless of the amount of volume reduced during the 2-week taper period. Comparisons of the two strategies did not reveal significant differences between the taper groups. CONCLUSION: Taper strategies characterised by HILV and HIMV training load have beneficial effects on the improvement of endurance performance. Reduction of training load-training volume did not affect endurance performance, instead these could induce extra adaption of the body physiology. FAU - Jafer, Ambachew Amede AU - Jafer AA AUID- ORCID: 0000-0002-6036-2068 AD - Sport Science Department, Wollo University, Dessie, Ethiopia. FAU - Mondal, Soumitra AU - Mondal S AD - Sport Science, Mekelle University, Mekelle, Ethiopia. FAU - Abdulkedir, Mahmud AU - Abdulkedir M AD - Medical microbiology and Immunology, Mekelle University, Mekelle, Ethiopia. FAU - Mativananan, D AU - Mativananan D AD - Sport Science, Mekelle University, Mekelle, Ethiopia. LA - eng PT - Journal Article DEP - 20190321 PL - England TA - BMJ Open Sport Exerc Med JT - BMJ open sport & exercise medicine JID - 101681007 PMC - PMC6539154 OTO - NOTNLM OT - High intensity-low volume OT - High intensity-moderate volume OT - Tapering OT - physiological traits EDAT- 2019/06/14 06:00 MHDA- 2019/06/14 06:01 PMCR- 2019/03/21 CRDT- 2019/06/14 06:00 PHST- 2019/02/25 00:00 [accepted] PHST- 2019/06/14 06:00 [entrez] PHST- 2019/06/14 06:00 [pubmed] PHST- 2019/06/14 06:01 [medline] PHST- 2019/03/21 00:00 [pmc-release] AID - bmjsem-2019-000509 [pii] AID - 10.1136/bmjsem-2019-000509 [doi] PST - epublish SO - BMJ Open Sport Exerc Med. 2019 Mar 21;5(1):e000509. doi: 10.1136/bmjsem-2019-000509. eCollection 2019.