Belk John W, Marshall Hayden A, McCarty Eric C, Kraeutler Matthew J
Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, USA.
Department of Orthopaedics, Seton Hall-Hackensack Meridian School of Medicine, South Orange, New Jersey, USA.
Orthop J Sports Med. 2017 Oct 2;5(10):2325967117729798. doi: 10.1177/2325967117729798. eCollection 2017 Oct.
There has been speculation that rest during the regular season for players in the National Basketball Association (NBA) improves player performance in the postseason.
To determine whether there is a correlation between the amount of regular-season rest among NBA players and playoff performance and injury risk in the same season.
Cohort study; Level of evidence, 3.
The Basketball Reference and Pro Sports Transactions archives were searched from the 2005 to 2015 seasons. Data were collected on players who missed fewer than 5 regular-season games because of rest (group A) and 5 to 9 regular-season games because of rest (group B) during each season. Inclusion criteria consisted of players who played a minimum of 20 minutes per game and made the playoffs that season. Players were excluded if they missed ≥10 games because of rest or suspension or missed ≥20 games in a season for any reason. Matched pairs were formed between the groups based on the following criteria: position, mean age at the start of the season within 2 years, regular-season minutes per game within 5 minutes, same playoff seeding, and player efficiency rating (PER) within 2 points. The following data from the playoffs were collected and compared between matched pairs at each position (point guard, shooting guard, forward/center): points per game, assists per game, PER, true shooting percentage, blocks, steals, and number of playoff games missed because of injury.
A total of 811 players met the inclusion and exclusion criteria (group A: n = 744 players; group B: n = 67 players). Among all eligible players, 27 matched pairs were formed. Within these matched pairs, players in group B missed significantly more regular-season games because of rest than players in group A (6.0 games vs 1.3 games, respectively; < .0001). There were no significant differences between the groups at any position in terms of points per game, assists per game, PER, true shooting percentage, blocks, steals, or number of playoff games missed because of injury.
Rest during the NBA regular season does not improve playoff performance or affect the injury risk during the playoffs in the same season.
一直有人猜测，美国职业篮球联赛（NBA）球员在常规赛期间休息有助于提升其季后赛表现。
确定NBA球员常规赛休息时长与同一赛季季后赛表现及伤病风险之间是否存在关联。
队列研究；证据等级，3级。
检索2005至2015赛季的篮球参考资料和职业体育赛事交易档案。收集每个赛季因休息错过少于5场常规赛的球员（A组）和因休息错过5至9场常规赛的球员（B组）的数据。纳入标准包括每场比赛至少上场20分钟且该赛季进入季后赛的球员。因休息或禁赛错过≥10场比赛或因任何原因在一个赛季中错过≥20场比赛的球员被排除。根据以下标准在两组之间形成匹配对：位置、赛季初平均年龄相差2岁以内、每场常规赛上场时间相差5分钟以内、相同的季后赛种子排名以及球员效率值（PER）相差2分以内。收集季后赛的以下数据，并在每个位置（控球后卫、得分后卫、前锋/中锋）的匹配对之间进行比较：场均得分、场均助攻、PER、真实投篮命中率、盖帽、抢断以及因伤错过的季后赛比赛场次。
共有811名球员符合纳入和排除标准（A组：n = 744名球员；B组：n = 67名球员）。在所有符合条件的球员中，形成了27对匹配对。在这些匹配对中，B组球员因休息错过的常规赛比赛场次明显多于A组球员（分别为6.0场和1.3场；P <.0001）。在任何位置上，两组在场均得分、场均助攻、PER、真实投篮命中率、盖帽、抢断或因伤错过的季后赛比赛场次方面均无显著差异。
NBA常规赛期间的休息并不能提升季后赛表现，也不会影响同一赛季季后赛期间的伤病风险。
