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Mean Propulsive Velocity Is a Viable Method for Adjusting the Resistance-Training Load at Moderate Altitude: Monitoring Resistance Load at Altitude
Örebro universitet, Institutionen för hälsovetenskaper. Environmental Physiology Group, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.ORCID-id: 0000-0002-4627-7254
Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
Department of Health Sciences, Lehman College, New York, NY, United States.
Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
2019 (Engelska)Ingår i: Frontiers in Sports and Active Living, E-ISSN 2624-9367, Vol. 1, artikel-id 52Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We examined the viability of using mean propulsive velocity (MPV) to adjust the load in the countermovement jump (CMJ) at moderate altitude. Twenty-four volunteers were assigned to a 4-week power-oriented resistance training (RT) program in either normoxia (N, 690 m) or intermittent hypobaric hypoxia (IH, 2,320 m). The load was adjusted to maintain execution velocity of CMJ at 1m·s−1 of MPV. Relative peak power output (Prel), and percentage of velocity loss throughout the sets (VL) were determined for each session. The internal load was measured by the rating of perceived exertion (RPE). The absolute load lifted was higher in IH compared to N (75.6 ± 8.4 vs. 58.5 ± 12.3 kg P < 0.001). However, similar relative increases for both groups were found when comparing the final values (IH: 8.2%, P = 0.007; N: 9.8%, P = 0.03) with no changes in VL between groups (P = 0.36). Post-study Prel improved significantly only in IH (+7% W·kg−1P = 0.002). Mean RPE was greater in IH vs. N (6.8 ± 1.5 vs. 5.6 ± 2, P < 0.001). The MPV seems to be a viable method for adjusting external load during RT at moderate altitude. However, given that RT at moderate altitude increases RPE, it is prudent to monitor internal load when using the MPV to best determine the actual physiological stress of the session.

Ort, förlag, år, upplaga, sidor
Frontiers Media S.A., 2019. Vol. 1, artikel-id 52
Nyckelord [en]
Hypobaric hypoxia, monitoring, power, resistance training, strength
Nationell ämneskategori
Idrottsvetenskap
Forskningsämne
Idrottsvetenskap; Idrott med inriktning mot fysiologi
Identifikatorer
URN: urn:nbn:se:oru:diva-77631DOI: 10.3389/fspor.2019.00052OAI: oai:DiVA.org:oru-77631DiVA, id: diva2:1365988
Tillgänglig från: 2019-10-27 Skapad: 2019-10-27 Senast uppdaterad: 2019-10-28Bibliografiskt granskad

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