Simon Gavanda, Steffen Held, Sascha Schrey, Katharina Oberwetter, Pier-Gino M Lazzaro, Markus Pergelt, Stephan Geisler
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At p ≤ 0.05, body mass (+1.8 ± 1.9 kg, p = 0.006) and fat-free mass (+1.4 ± 0.9 kg, p ≤ 0.001) increased significantly in SUP. Muscle mass gains were observed in SUP (+1.4 ± 0.9 kg, p = 0.009) and PDF (+0.9 ± 1.3 kg, p = 0.047). All groups improved squat 1-repetition maximum (1RM) (SUP: +26.6 ± 6.5 kg, p ≤ 0.001; APP: +19.2 ± 11.0 kg, p ≤ 0.001; PDF: +19.4 ± 11.7 kg, p ≤ 0.001) and bench press 1RM (SUP: +9.1 ± 3.5 kg, p ≤ 0.001; APP: +8.2 ± 4.0 kg, p ≤ 0.001; PDF: +7.7 ± 5.8 kg, p ≤ 0.001). Supervised showed significantly greater squat gains than APP and PDF (p ≤ 0.044). Well-being (WHO-5) improved in SUP (+15.7 ± 16.2 points, p ≤ 0.001) and PDF (+9.0 ± 20.4 points, p = 0.032). Satisfaction with supervision was significantly higher in SUP (96.7 ± 4.3%) than in APP (92.0 ± 7.1%, p = 0.005). In conclusion, supervised RT resulted in superior improvements in strength, body composition, well-being, and supervision satisfaction compared with app-guided or self-guided training. Although APP and PDF resulted in some positive effects, their magnitude was generally smaller. These findings underscore the value of in-person coaching in optimizing RT outcomes. However, app-based RT shows promise for maintaining adherence, offering a viable alternative when full supervision is not feasible.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimizing Resistance Training Outcomes: Comparing In-Person Supervision, Online Coaching, and Self-Guided Approaches: A Randomized Controlled Trial.\",\"authors\":\"Simon Gavanda, Steffen Held, Sascha Schrey, Katharina Oberwetter, Pier-Gino M Lazzaro, Markus Pergelt, Stephan Geisler\",\"doi\":\"10.1519/JSC.0000000000005216\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Abstract: </strong>Gavanda, S, Held, S, Schrey, S, Oberwetter, K, Lazzaro, P-GM, Pergelt, M, and Geisler, S. Optimizing resistance training outcomes: comparing in-person supervision, online coaching, and self-guided approaches: a randomized controlled trial. J Strength Cond Res XX(X): 000-000, 2025-This randomized, parallel-group trial investigated the effects of supervised (SUP), app-guided (APP), and self-guided (PDF) 10-week, thrice-weekly full-body resistance training (RT) on strength, body composition, well-being, and supervision satisfaction (S-SRQ) in trained men and women (n = 79, 48% women; 30.7 ± 7.8 years, 1.75 ± 0.1 m, 77.5 ± 17.5 kg). Adherence was highest in SUP (88.2%), followed by APP (81.2%) and PDF (52.2%). At p ≤ 0.05, body mass (+1.8 ± 1.9 kg, p = 0.006) and fat-free mass (+1.4 ± 0.9 kg, p ≤ 0.001) increased significantly in SUP. Muscle mass gains were observed in SUP (+1.4 ± 0.9 kg, p = 0.009) and PDF (+0.9 ± 1.3 kg, p = 0.047). All groups improved squat 1-repetition maximum (1RM) (SUP: +26.6 ± 6.5 kg, p ≤ 0.001; APP: +19.2 ± 11.0 kg, p ≤ 0.001; PDF: +19.4 ± 11.7 kg, p ≤ 0.001) and bench press 1RM (SUP: +9.1 ± 3.5 kg, p ≤ 0.001; APP: +8.2 ± 4.0 kg, p ≤ 0.001; PDF: +7.7 ± 5.8 kg, p ≤ 0.001). Supervised showed significantly greater squat gains than APP and PDF (p ≤ 0.044). Well-being (WHO-5) improved in SUP (+15.7 ± 16.2 points, p ≤ 0.001) and PDF (+9.0 ± 20.4 points, p = 0.032). Satisfaction with supervision was significantly higher in SUP (96.7 ± 4.3%) than in APP (92.0 ± 7.1%, p = 0.005). In conclusion, supervised RT resulted in superior improvements in strength, body composition, well-being, and supervision satisfaction compared with app-guided or self-guided training. Although APP and PDF resulted in some positive effects, their magnitude was generally smaller. These findings underscore the value of in-person coaching in optimizing RT outcomes. 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Optimizing Resistance Training Outcomes: Comparing In-Person Supervision, Online Coaching, and Self-Guided Approaches: A Randomized Controlled Trial.
Abstract: Gavanda, S, Held, S, Schrey, S, Oberwetter, K, Lazzaro, P-GM, Pergelt, M, and Geisler, S. Optimizing resistance training outcomes: comparing in-person supervision, online coaching, and self-guided approaches: a randomized controlled trial. J Strength Cond Res XX(X): 000-000, 2025-This randomized, parallel-group trial investigated the effects of supervised (SUP), app-guided (APP), and self-guided (PDF) 10-week, thrice-weekly full-body resistance training (RT) on strength, body composition, well-being, and supervision satisfaction (S-SRQ) in trained men and women (n = 79, 48% women; 30.7 ± 7.8 years, 1.75 ± 0.1 m, 77.5 ± 17.5 kg). Adherence was highest in SUP (88.2%), followed by APP (81.2%) and PDF (52.2%). At p ≤ 0.05, body mass (+1.8 ± 1.9 kg, p = 0.006) and fat-free mass (+1.4 ± 0.9 kg, p ≤ 0.001) increased significantly in SUP. Muscle mass gains were observed in SUP (+1.4 ± 0.9 kg, p = 0.009) and PDF (+0.9 ± 1.3 kg, p = 0.047). All groups improved squat 1-repetition maximum (1RM) (SUP: +26.6 ± 6.5 kg, p ≤ 0.001; APP: +19.2 ± 11.0 kg, p ≤ 0.001; PDF: +19.4 ± 11.7 kg, p ≤ 0.001) and bench press 1RM (SUP: +9.1 ± 3.5 kg, p ≤ 0.001; APP: +8.2 ± 4.0 kg, p ≤ 0.001; PDF: +7.7 ± 5.8 kg, p ≤ 0.001). Supervised showed significantly greater squat gains than APP and PDF (p ≤ 0.044). Well-being (WHO-5) improved in SUP (+15.7 ± 16.2 points, p ≤ 0.001) and PDF (+9.0 ± 20.4 points, p = 0.032). Satisfaction with supervision was significantly higher in SUP (96.7 ± 4.3%) than in APP (92.0 ± 7.1%, p = 0.005). In conclusion, supervised RT resulted in superior improvements in strength, body composition, well-being, and supervision satisfaction compared with app-guided or self-guided training. Although APP and PDF resulted in some positive effects, their magnitude was generally smaller. These findings underscore the value of in-person coaching in optimizing RT outcomes. However, app-based RT shows promise for maintaining adherence, offering a viable alternative when full supervision is not feasible.
期刊介绍：
The editorial mission of The Journal of Strength and Conditioning Research (JSCR) is to advance the knowledge about strength and conditioning through research. A unique aspect of this journal is that it includes recommendations for the practical use of research findings. While the journal name identifies strength and conditioning as separate entities, strength is considered a part of conditioning. This journal wishes to promote the publication of peer-reviewed manuscripts which add to our understanding of conditioning and sport through applied exercise science.
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