REF-109 · Pyne et al., 2009 · Journal of Sports Sciences, Vol. · Paper

Peaking for Optimal Performance: Research Limitations and Future Directions

C+thin evidenceMeasured on elite to world-class athletesWritten before October 2026, being re-checked

Pyne, Mujika & Reilly take stock of taper research: existing work has defined the taper, described the forms used in contemporary sport and examined how volume, load, intensity, duration and type (progressive or step) are prescribed.

They then list what is missing — few studies in team, combative, racquet and precision sports; relatively few randomized controlled trials; a narrow focus on a single peak rather than multiple peaking for weekly, multi-day or repeated events; and limited understanding of the physiological, neuromuscular and biomechanical basis of the taper.

Future work should address the influence of prior training on the optimal taper and the interactions of the taper with long-haul travel, heat and altitude; practitioners want guidance on tapering across a season, a league and a multi-year Olympic cycle. The paper gives no taper percentages, durations or monitoring rules of its own.

Key Results

State of the field (2009): the taper is defined and its forms described; prescription of volume, load, intensity, duration and type has been examined.
Gaps: team/combative/racquet/precision sports; few RCTs; single-peak focus vs multiple peaking; mechanisms poorly understood.
Open questions: how prior training changes the optimal taper; taper × long-haul travel, heat and altitude; tapering repeatedly across a season or multi-year cycle.

Practical Application

The taper literature up to 2009 rested on relatively few randomized trials, almost all in individual endurance sports with a single target competition, and said little about how prior training load, travel, heat or altitude change the right taper — so treat any taper prescription as a starting point to be individualized, not a rule.
Multiple peaking (a series of races over weeks) was essentially unstudied; for athletes racing repeatedly, plan the taper for the key event and accept that evidence for the in-between events is thin.
Not from this paper: the empirical taper optimum — about 2 weeks, training volume reduced 41-60%, intensity and frequency maintained — is the Bosquet 2007 meta-analysis REF-107; the case for keeping intensity through the taper is Mujika 2010 REF-110.
Not from this paper; the base's own practice: we watch morning readiness (sleep, HRV, RHR, mood) across the taper and shorten or lengthen it by feel; this paper does not prescribe HRV or any other monitoring metric.

Limitations

Narrative commentary with no systematic method, no new data and no quantitative recommendations; written toward the 2010 and 2012 Olympic cycles.
How this entry was checked and changed
Why this level

regraded 2026-09-27 from B+: narrative commentary on research gaps, no systematic method; the empirical taper numbers live in the Bosquet meta-analysis REF-107

Content correction 2026-09-27
Entry credited the paper with "7-14 day taper, 40-60% volume reduction, HRV/sleep monitoring, HRV should rise 10-20%, 2-3 × 5 min VO2max efforts, 70-80% easy days" -> none of this is in the paper, which is a review of research limitations and future directions; all numbers deleted, the empirical optimum pointed to REF-107 and monitoring relabelled as base practice.
Title changed to the paper's title; Level B+ -> C+ (narrative commentary).