PMID- 32778961
OWN - NLM
STAT- MEDLINE
DCOM- 20210819
LR  - 20220218
IS  - 1430-2772 (Electronic)
IS  - 0340-0727 (Print)
IS  - 0340-0727 (Linking)
VI  - 85
IP  - 6
DP  - 2021 Sep
TI  - The effect of self-selecting the number of repetitions on motor performance and 
      psychological outcomes.
PG  - 2398-2407
LID - 10.1007/s00426-020-01402-4 [doi]
AB  - In resistance-training, the number of repetitions can be either fixed and 
      predetermined (e.g., 3 sets of 10 repetitions), or selected by the trainee during 
      ongoing sets (e.g., 3 sets of 8-12 repetitions). The first approach is more 
      goal-focused while the latter is more autonomy-focused. Here we compared these 
      two approaches in motor performance and psychological outcomes. Nineteen 
      resistance-trained participants (10-males) first completed one repetition-maximum 
      (RM) tests in the barbell-squat and bench-press, and were familiarized with the 
      isometric mid-thigh pull (IMTP). In the next two counterbalanced sessions, 
      participants completed two sets of the squat and bench-press using 70%1RM, and 
      two sets of the IMTP. In the predetermined session, participants completed 10 
      repetitions in all sets, and in the self-selected session, participants chose how 
      many repetitions to complete out of an 8-12 range. Bar-velocity was measured in 
      the squat and bench-press, and force production in the IMTP. Enjoyment, 
      perceived-autonomy, and approach-preferences were collected post-sessions. We 
      observed comparable bar-velocity, force production, and enjoyment in both 
      conditions (all BF(01) > 2.1), and an even approach-preferences split. However, 
      in the self-selected condition, participants demonstrated considerable 
      variability in the number of repetitions and reported greater perceived-autonomy. 
      Given the similarities between approaches, both can be used with this cohort 
      based on their personal-preference.
CI  - (c) 2020. Springer-Verlag GmbH Germany, part of Springer Nature.
FAU - Emanuel, Aviv
AU  - Emanuel A
AUID- ORCID: 0000-0003-3760-3289
AD  - School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel.
AD  - School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, 
      Tel-Aviv, Israel.
AD  - Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel.
FAU - Har-Nir, Itai
AU  - Har-Nir I
AD  - School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, 
      Tel-Aviv, Israel.
AD  - Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel.
FAU - Rozen Smukas, Isaac Isur
AU  - Rozen Smukas II
AD  - School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, 
      Tel-Aviv, Israel.
AD  - Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel.
FAU - Halperin, Israel
AU  - Halperin I
AD  - School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, 
      Tel-Aviv, Israel. ihalperin@tauex.tau.ac.il.
AD  - Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel. 
      ihalperin@tauex.tau.ac.il.
LA  - eng
PT  - Journal Article
DEP - 20200810
PL  - Germany
TA  - Psychol Res
JT  - Psychological research
JID - 0435062
SB  - IM
MH  - Humans
MH  - Male
MH  - Muscle, Skeletal
MH  - Posture
MH  - *Resistance Training
PMC - PMC7417112
COIS- The authors declare that they have no competing interests.
EDAT- 2020/08/12 06:00
MHDA- 2021/08/20 06:00
PMCR- 2020/08/10
CRDT- 2020/08/12 06:00
PHST- 2020/05/02 00:00 [received]
PHST- 2020/08/04 00:00 [accepted]
PHST- 2020/08/12 06:00 [pubmed]
PHST- 2021/08/20 06:00 [medline]
PHST- 2020/08/12 06:00 [entrez]
PHST- 2020/08/10 00:00 [pmc-release]
AID - 10.1007/s00426-020-01402-4 [pii]
AID - 1402 [pii]
AID - 10.1007/s00426-020-01402-4 [doi]
PST - ppublish
SO  - Psychol Res. 2021 Sep;85(6):2398-2407. doi: 10.1007/s00426-020-01402-4. Epub 2020 
      Aug 10.